Manual R820

CiTRANS R820
Edge Router
Hardware Description
Version: A
Code: MN000001856
FiberHome Telecommunication Technologies Co., Ltd.
May 2014
Thank you for choosing our products.
We appreciate your business. Your satisfaction is our goal.

We will provide you with comprehensive technical support
and after-sales service. Please contact your local sales
representative, service representative or distributor for any
help needed at the contact information shown below.
Fiberhome Telecommunication Technologies Co., Ltd.
Address: No. 67, Guanggu Chuangye Jie, Wuhan, Hubei, China

Zip code: 430073
Tel: +6 03 7960 0860/0884 (for Malaysia)
+91 98 9985 5448 (for South Asia)
+593 4 501 4529 (for South America)
Fax: +86 27 8717 8521
Website: http://www.fiberhomegroup.com
Legal Notice
are trademarks of FiberHome Telecommunication Technologies Co., Ltd.

(Hereinafter referred to as FiberHome)
All brand names and product names used in this document are used for
identification purposes only and are trademarks or registered trademarks
of their respective holders.
All rights reserved
No part of this document (including the electronic version) may be

reproduced or transmitted in any form or by any means without prior
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Information in this document is subject to change without notice.
Preface
Related Documentation
Document Description
Introduces the product's functions and features, protection

CiTRANS R820 Edge Router
principles, networking modes and applications, and
Product Description
technical specifications.
Introduces the structure, functions, specifications, and

CiTRANS R820 Edge Router technical parameters of the product's hardware
Hardware Description components, including cabinets, subracks, cards, and
cables.
Gives a detailed introduction to the equipment installation
CiTRANS R820 Edge Router
methods and requirements on connection and lay out of
Quick Installation Guide
wires and cables.
I
Version
Version Description
A Initial version
Intended Readers
This manual is intended for the following readers:
u Planning and designing engineers
u Commissioning engineers
u Operation and maintenance engineers
To utilize this manual, these prerequisite skills are necessary:
u IP/MPLS technology
u Data communication technology
u SDH communication theory
u Ethernet technology
II
Conventions
Terminology Conventions
Terminology Convention
CiTRANS R820 FiberHome CiTRANS R820 Edge Router
FiberHome e-Fim OTNM2000 Element Management

OTNM2000
System
SCUS1 Router System Control Unit
SCUS2 Router System Control Unit2
MSS1 Octal Port Ethernet Mixed Interface Card

MSS2 Four Port Ethernet Mixed Interface Card
MSS3 Two Port Ethernet Mixed Interface Card
E1S1 16 E1 Line Card with CES
PWRS1 Power Supply Terminal Card
FAN FAN Control Card
Symbol Conventions
Symbol Convention Description
Note Important features or operation guide.
Possible injury to persons or systems, or cause traffic

Caution
interruption or loss.
Warning May cause severe bodily injuries.
➔ Jump symbol Jump to another step.
Cascading
→ Cascade multiple-level menu options.
menu
Bi-directional
↔ The service signal is bi-directional.
service
Unidirectional
→ The service signal is unidirectional.
service
III
Contents
Preface...................................................................................................................I
Related Documentation ...................................................................................I
Version ...........................................................................................................II
Intended Readers ...........................................................................................II
Conventions ..................................................................................................III
1 Cabinet........................................................................................................1-1
1.1 19-inch Cabinet .............................................................................1-2
1.1.1 Model ..............................................................................1-2

1.1.2 Appearance .....................................................................1-2
1.1.3 Cabinet Structure.............................................................1-3
1.1.4 Indicator ..........................................................................1-6
1.1.5 Typical Layout .................................................................1-8
1.2 21-inch Cabinet .............................................................................1-9
1.2.1 Model ............................................................................1-10

1.2.2 Appearance ...................................................................1-10
1.2.3 Cabinet Structure...........................................................1-11
1.2.4 Indicator ........................................................................1-14
1.2.5 Typical Layout ...............................................................1-15
2 PDP ............................................................................................................2-1
2.1 Model ............................................................................................2-2
2.2 Function ........................................................................................2-2
2.3 Appearance...................................................................................2-2
2.4 Front Panel....................................................................................2-3
2.5 Connection Terminals and Switches ...............................................2-4
2.5.1 Connection Terminal Board ..............................................2-4

2.5.2 Switches..........................................................................2-5
2.5.3 Power Terminals ..............................................................2-6
2.5.4 Other Terminals ...............................................................2-7
2.6 Lightning Protection Module...........................................................2-8

2.7 Technical Parameters ..................................................................2-10
3 AC/DC Power Adapter .................................................................................3-1
3.1 Model ............................................................................................3-2
3.2 Function ........................................................................................3-2
3.3 Appearance...................................................................................3-2
3.4 Technical Parameters ....................................................................3-3
4 Subrack.......................................................................................................4-1
4.1 Subrack Structure ..........................................................................4-2
4.2 Fan Control Card ...........................................................................4-3
4.2.1 Model ..............................................................................4-3

4.2.2 Function ..........................................................................4-3
4.2.3 Appearance .....................................................................4-3
4.2.4 Intelligent Fan Control ......................................................4-4
4.2.5 Indicator ..........................................................................4-5
4.2.6 Safety Sign ......................................................................4-5
4.2.7 Technical Parameters ......................................................4-5
4.3 Slot Allocation................................................................................4-6
4.4 Access Bandwidth .........................................................................4-6
4.5 Safety Sign ....................................................................................4-7
4.6 Technical Parameters ....................................................................4-7
5 Card ............................................................................................................5-1
5.1 Overview .......................................................................................5-2
5.1.1 Appearance .....................................................................5-2

5.1.2 Structure..........................................................................5-3
5.1.3 Classification ...................................................................5-5
5.1.4 Positioning of Cards in the System ...................................5-5
5.1.5 Mapping between Cards and Slots ...................................5-6
5.2 Introduction to Cards......................................................................5-7
5.2.1 SCUS1/SCUS2/SCUS3...................................................5-7
5.2.2 MSS1/MSS2/MSS3 .......................................................5-15
5.2.3 E1S1 .............................................................................5-18
5.2.4 PWRS1 .........................................................................5-22
6 Cables.........................................................................................................6-1
6.1 Overview .......................................................................................6-2
6.2 Power Cable and Earth Ground Cable............................................6-3
6.2.1 Cabinet Power Cable .......................................................6-3

6.2.2 Cabinet Protection Earth Ground Cable............................6-5
6.2.3 Subrack Power Cable ......................................................6-6
6.2.4 Subrack Protection Earth Ground Cable ...........................6-7
6.3 Alarm Cable...................................................................................6-8
6.3.1 Alarm Cable of the Head of Row Cabinet..........................6-9

6.3.2 Subrack Alarm Cable .....................................................6-10
6.4 E1 Cable .....................................................................................6-12
6.5 Network Cable .............................................................................6-14
6.5.1 Network Cable Between the OTNM2000 and the

Equipment .....................................................................6-14
6.5.2 Ethernet Service Cable ..................................................6-15
6.5.3 Clock and Time Cables ..................................................6-16
6.6 Optical Fiber Jumper....................................................................6-20
Appendix A Card Name and Number List ................................................... A-1
Appendix B Size, Weight, and Power Consumption .................................... B-1
Appendix C Interfaces................................................................................ C-1
C.1 Optical Interface ........................................................................... C-1
C.2 Electrical Interface ........................................................................ C-1
C.2.1 RJ-45 Connector ............................................................ C-1

C.2.2 E1 Interface .................................................................... C-3
Appendix D Indicators ................................................................................ D-1
D.1 Indicators on the Cabinet .............................................................. D-1
D.2 Indicators on the Fan Control Card ................................................ D-1
D.3 Indicators on Cards....................................................................... D-2
Appendix E Abbreviations .......................................................................... E-1

Figures
Figure 1-1 Appearance of a 19-inch Cabinet ...................................................1-3

Figure 1-2 Exploded View of a 19-inch Cabinet ...............................................1-4
Figure 1-3 Main Components of a 19-inch Cabinet and Their Names...............1-5
Figure 1-4 Indicators on the 19–inch Cabinet ..................................................1-6
Figure 1-5 Typical Layout of the 19-inch Cabinet .............................................1-9
Figure 1-6 Appearance of a 21-Inch Cabinet (300 mm in Depth)....................1-11
Figure 1-7 Exploded View of a 21-Inch Cabinet (300 mm in Depth)................1-12
Figure 1-8 General Structure of a 21-Inch Cabinet (300 mm in Depth) ...........1-13
Figure 1-9 Indicators on the 21–inch Cabinet ................................................1-15
Figure 1-10 Typical Layout of the 21-inch Cabinet ...........................................1-16
Figure 2-1 Appearance of the PDP250B .........................................................2-3
Figure 2-2 Front Panel of the PDP250B ..........................................................2-3
Figure 2-3 Connection Terminal Card of the PDP250B ....................................2-4
Figure 2-4 Panel of the PDP250B ...................................................................2-5
Figure 2-5 Lightning Protection Module...........................................................2-9
Figure 3-1 Appearance of the AC/DC Power Adapter ......................................3-3
Figure 4-1 Appearance and Structure of a Subrack .........................................4-2
Figure 4-2 Appearance of the Fan Control Card ..............................................4-3
Figure 4-3 Slot Allocation of a Subrack............................................................4-6
Figure 4-4 Access Capacity ............................................................................4-6
Figure 5-1 Appearance of a Card ....................................................................5-2
Figure 5-2 Three Views of the Service Card ....................................................5-3
Figure 5-3 Three Views of the Core Switch Card .............................................5-4
Figure 5-4 Three Views of the Power Card ......................................................5-4
Figure 5-5 Positioning of Cards in the System .................................................5-6
Figure 5-6 Front Panel of the SCUS1/SCUS2/SCUS3 Card ............................5-9
Figure 5-7 Panel of the MSS1/MSS2/MSS3 Card..........................................5-16
Figure 5-8 Panel of the E1S1 Card ...............................................................5-20
Figure 5-9 Panel of the PWRS1 Card............................................................5-23
Figure 6-1 Cabinet Power Cable .....................................................................6-3
Figure 6-2 Cabinet Protection Earth Ground Cable..........................................6-5
Figure 6-3 Structure of the Subrack Power Cable ............................................6-6
Figure 6-4 Subrack Protection Earth Ground Cable .........................................6-8
Figure 6-5 Alarm Cable of the Head of Row Cabinet........................................6-9
Figure 6-6 Alarm Cable of a Subrack ............................................................6-11
Figure 6-7 RJ-45 Connector .........................................................................6-11
Figure 6-8 Connector of an E1 Cable ............................................................6-13
Figure 6-9 Network Cable .............................................................................6-14
Figure 6-10 Network Cable .............................................................................6-16
Figure 6-11 Appearance of the Clock and Time Cable.....................................6-17
Figure 6-12 LC/PC Optical Fiber Jumper.........................................................6-20
Figure 6-13 SC/PC Optical Fiber Jumper ........................................................6-20
Figure 6-14 FC/PC Optical Fiber Jumper ........................................................6-21
Figure C-1 E1 Interface .................................................................................. C-4
Tables
Table 1-1 Size of Each Type of 19-inch Cabinet .............................................1-2

Table 1-2 19-inch Cabinet Model ...................................................................1-2
Table 1-3 Names and Functions of Major Components in a 19-inch Cabinet...1-6
Table 1-4 Indicators on the 19-inch Cabinet ...................................................1-8
Table 1-5 Size of Each Type of 21-inch Cabinet .............................................1-9
Table 1-6 21-inch Cabinet Model .................................................................1-10
Table 1-7 Names and Functions of Major Components in a 21-inch Cabinet (300
mm in depth)................................................................................1-14
Table 1-8 Indicators on the 21-inch Cabinet .................................................1-15
Table 2-1 Components on the PDP250B Connection Terminal Board.............2-4
Table 2-2 Input Terminals of the External Power Supply .................................2-6
Table 2-3 Output Terminals of the Branch Power Supply ................................2-7
Table 2-4 Subrack Alarm Input Terminals.......................................................2-7
Table 2-5 Definitions of Pins on the Plug of the Lightning Protection Module...2-9
Table 2-6 PDP250B Technical Parameters ..................................................2-10
Table 3-1 Technical Parameters of the AC/DC Power Adapter........................3-3
Table 4-1 Components in a Subrack ..............................................................4-2
Table 4-2 Indicators on the Fan Control Card .................................................4-5
Table 4-3 Safety Sign on the Fan Control Board.............................................4-5
Table 4-4 Technical Parameters of the Fan Control Card................................4-6
Table 4-5 The Subrack Safety Signs..............................................................4-7
Table 4-6 Technical Parameters of the Subrack .............................................4-7
Table 5-1 Dimensions of Cards......................................................................5-2
Table 5-2 Classification of Cards ...................................................................5-5
Table 5-3 Mapping between Cards and Slots .................................................5-6
Table 5-4 Panel of the SCUS1/SCUS2/SCUS3 Card ...................................5-10
Table 5-5 Definitions of Interfaces or Terminals on the Panel of the SCUS1/
SCUS2/SCUS3 ...........................................................................5-11
Table 5-6 Technical Parameters of the SCUS1/SCUS2/SCUS3 Card ...........5-13
Table 5-7 GE Optical Interface Specifications of the SCUS1/SCUS2/SCUS3
Card ............................................................................................5-14
Table 5-8 FE Optical Interface Specifications of the SCUS1/SCUS2/SCUS3
Card ............................................................................................5-14
Table 5-9 Accessed Service Types and Quantity of the MSS1/MSS2/MSS3
Card ............................................................................................5-15
Table 5-10 Panel of the MSS1/MSS2/MSS3 Card..........................................5-17
Table 5-11 Technical Specifications of the MSS1/MSS2/MSS3 Card..............5-17
Table 5-12 GE Optical Interface Specifications of the MSS1/MSS2/MSS3
Card ............................................................................................5-17
Table 5-13 FE Optical Interface Specifications of the MSS1/MSS2/MSS3
Card ............................................................................................5-18
Table 5-14 Accessed Service Types and Quantity of the E1S1 Card ..............5-19
Table 5-15 Panel of the E1S1 Card ...............................................................5-20
Table 5-16 Technical Specifications of the E1S1 Card....................................5-21
Table 5-17 Interface Specifications of the E1S1 Card.....................................5-21
Table 5-18 Major Functions of the PWRS1 Card ............................................5-22
Table 5-19 Panel of the PWRS1 Card............................................................5-23
Table 5-20 Technical Parameters of the PWRS1 Card ...................................5-24
Table 6-1 Cables and Connectors Used by the CiTRANS R820 .....................6-2
Table 6-2 Models of the Cabinet Power Cable................................................6-3
Table 6-3 Connection Method of the Cabinet Power Cable.............................6-4
Table 6-4 Technical Parameters of the Cabinet Power Cable .........................6-4
Table 6-5 Connection Method of the Cabinet Protection Earth Ground Cable .6-5
Table 6-6 Technical Parameters of the Cabinet Protection Earth Ground
Cable.............................................................................................6-6
Table 6-7 Connection Method of the Subrack Power Cable ............................6-7
Table 6-8 Technical Parameters of the Subrack Power Cable.........................6-7
Table 6-9 Connection Method of the Subrack Protection Earth Ground Cable.6-8
Table 6-10 Technical Parameters of the Subrack Protection Earth Ground
Cable.............................................................................................6-8
Table 6-11 Connection Method of the Alarm Cable of the Head of Row
Cabinet........................................................................................6-10
Table 6-12 Technical Parameters of the Alarm Cable of the Head of Row
Cabinet........................................................................................6-10
Table 6-13 Pinout and Wiring of A Straight-through Cable ..............................6-11
Table 6-14 Connection Method of the Subrack Alarm Cable...........................6-12
Table 6-15 Technical Parameters of the Subrack Alarm Cable .......................6-12
Table 6-16 Pinout and Wiring Scheme of the E1 Cable ..................................6-13
Table 6-17 Connection Method of the E1 Cable .............................................6-14
Table 6-18 Technical Parameters of the Network Cable between the OTNM2000
and the Equipment.......................................................................6-15
Table 6-19 Technical Parameters of the Ethernet Service Cable.....................6-16
Table 6-20 Pinout and Wiring Scheme of the 120 ohm Clock Cable................6-17
Table 6-21 Pinout and Wiring Scheme of the 75 ohm Clock Cable .................6-18
Table 6-22 Pinout and Wiring Scheme of the Time Cable ...............................6-18
Table 6-23 Connection Method of the External Clock Cable ...........................6-19
Table 6-24 Connection Method of the Time Cable..........................................6-19
Table 6-25 Technical Parameters of the Clock And Time Cables ....................6-19
Table 6-26 Technical Parameters of Optical Fiber Jumpers ............................6-21
Table A-1 Names and Numbers of the Cards ................................................ A-1
Table B-1 Mechanical Size and Power Consumption..................................... B-1
Table C-1 Description about the RJ-45 Connector on the Panel of the SCUS1/2/
3 Card .......................................................................................... C-2
Table D-1 Indicators on the Cabinet .............................................................. D-1
Table D-2 Indicators on the Fan Control Card ................................................ D-1
Table D-3 Indicators on Cards....................................................................... D-2
Table D-4 Indicators on the Panel of the SCUS1/2/3 Card ............................. D-2
Table D-5 Indicators on the Panel of the PWRS1 Card .................................. D-3
1 Cabinet
A cabinet is used to carry subracks and power distribution panel (PDP) and
implements functions, such as wiring of cables and optical cables, dust-proof, and
Electromagnetic Interference (EMI). The CiTRANS R820 can be installed in a
standard 19-inch or 21-inch cabinet.
The following introduces the appearance, structure, and technical parameters of the
19-inch and 21-inch cabinets.
19-inch Cabinet
21-inch Cabinet
Version: A 1-1
CiTRANS R820 Edge Router Hardware Description
1.1 19-inch Cabinet
The CiTRANS R820 can be installed in a 19-inch cabinet.
Four types of 19-inch cabinets are available, as shown in Table 1-1.
Table 1-1 Size of Each Type of 19-inch Cabinet
Size (H W D: mm) Available Height inside Cabinet (mm)
1600 600 600 32U

2000 600 600 41U
2200 600 600 46U
2600 600 600 55U
1.1.1 Model
The CiTRANS R820 subrack can be installed on four types of 19-inch cabinets, as
listed in Table 1-2.
Table 1-2 19-inch Cabinet Model
Cabinet Model
4.102.596
4.102.597
19-inch cabinet
4.102.598
4.102.599
1.1.2 Appearance
Figure 1-1 shows a 19-inch cabinet.
1-2 Version: A
1 Cabinet
Figure 1-1 Appearance of a 19-inch Cabinet
1.1.3 Cabinet Structure
A 19-inch cabinet consists of the cabinet body and cabinet doors. Figure 1-2 shows
the exploded view of the cabinet.
Version: A 1-3
(1) Front door (2) Left side door (3) Rear door
(4) Cabinet body (5) Right side door
Figure 1-2 Exploded View of a 19-inch Cabinet
u The cabinet body mainly consists of four vertical mounting flanges, the cabinet
top, the cabinet base, as well as slide rails and connecting pieces between the
vertical mounting flanges.
u Cabinet doors include the front door, rear door, and side doors, all of which can
be removed.
Figure 1-3 shows names and functions of major components in a 19-inch cabinet.
1-4 Version: A
1 Cabinet
(1) Mounting hole for the top-connection bent (2) Wiring hole at the cabinet top
angle bracket
(3) Cabinet-top ventilation hole (4) Cabinet Indicator
(5) ESD protection earth ground fastener (6) Mounting hole on the vertical mounting
flanges
(7) Wiring hole at the cabinet bottom (8) Front door
(9) Side door (10) Button on the side door
Figure 1-3 Main Components of a 19-inch Cabinet and Their Names
Version: A 1-5
Table 1-3 lists names and functions of major components in a 19-inch cabinet.
Table 1-3 Names and Functions of Major Components in a 19-inch Cabinet
Component S.N. Name Function

Mounting hole for the top-
(1) connection bent angle For installing the top-connection bent angle bracket
bracket
When top access wiring mode is used, all wires and
(2) Wiring hole on cabinet top
cables are led in and out via these holes
Ventilation hole at the
(3) At the cabinet top, for air cooling of the cabinet
cabinet top
Cabinet body Three alarm indicators (green, red, and yellow),

(4) Cabinet indicator
indicating alarm status of the cabinet
ESD protection earth For installing the ESD protection wrist strap to prevent
(5)
ground fastener the equipment from the electrostatic damage
Mounting hole on the For securing the subracks and the PDP inside the
(6)
vertical mounting flanges cabinet
Wiring hole at the cabinet When bottom access wiring mode is used, all wires
(7)
bottom and cables are led in and out via these holes
(8) Front door For protecting subracks, and preventing dust from
Cabinet door (9) Side door entering the subracks
(10) Side door lock For opening or closing the side door
1.1.4 Indicator
Indicators of the 19-inch cabinet are located at the cabinet top. They indicate the
operating status of the equipment and levels of generated alarms.
(1) Red indicator (2) Yellow indicator (3) Green indicator
Figure 1-4 Indicators on the 19–inch Cabinet
1-6 Version: A
1 Cabinet
Version: A 1-7
The 19-inch cabinet provides three indicators. Table 1-4 describes the status of
each indicator.
Table 1-4 Indicators on the 19-inch Cabinet
Indicator Status Description
ON The PDP is connected to the power supply.

Green The equipment is disconnected from the power
OFF
supply.
ON The equipment has a critical or major alarm.

Red (critical/major alarm
The equipment does not have any critical or
indicator) OFF
major alarm.
Yellow (minor alarm ON The equipment has a minor alarm.

indicator) OFF The equipment does not have a minor alarm.
1.1.5 Typical Layout
To ensure normal air cooling and wiring, observe the following principles when
installation each component of the cabinet:
u Arrange subracks according to the typical layout of cabinets in different

dimensions.
u Do not occupy the minimum reserved space shown in the typical layout. The
minimum reserved space above or under each subrack is reserved for air
cooling or wiring of the equipment.
u If the cabinet is not fully occupied, arrange subracks from the bottom up and
reserve the upper space for capacity expansion.
Figure 1-5 shows the typical layout of the CiTRANS R820 in 19-inch cabinets.
1-8 Version: A
1 Cabinet
Figure 1-5 Typical Layout of the 19-inch Cabinet
1.2 21-inch Cabinet
The CiTRANS R820 can be installed in a 21-inch cabinet.
Four types of 21-inch cabinets are available, as shown in Table 1-5.
Table 1-5 Size of Each Type of 21-inch Cabinet
Size (H W D: mm) Available Height inside Cabinet (mm)
1600600300 1475
2000 600 300 1875
2200 600 300 2075
2600 600 300 2475
Version: A 1-9
1.2.1 Model
The CiTRANS R820 subrack can be installed on four types of 21-inch cabinets, as
listed in Table 1-6.
Table 1-6 21-inch Cabinet Model
Cabinet Model
4.102.589
4.102.590
21-inch cabinet
4.102.591
4.102.592
1.2.2 Appearance
Figure 1-6 shows the appearance of a 21-inch cabinet (300 mm in depth).
1-10 Version: A
1 Cabinet
Figure 1-6 Appearance of a 21-Inch Cabinet (300 mm in Depth)
1.2.3 Cabinet Structure
The 21-inch cabinet (300 mm in depth) consists of the cabinet body and cabinet
doors, as shown in Figure 1-7.
Version: A 1-11
(1) Front door (2) Cabinet body (3) Rear door
Figure 1-7 Exploded View of a 21-Inch Cabinet (300 mm in Depth)
u The cabinet body mainly consists of four vertical mounting flanges, the cabinet
top, the cabinet base, as well as slide rails and connecting pieces between the
vertical mounting flanges.
u The cabinet doors include the front door and the rear door. Both of them can be
removed from the cabinet.
See Figure 1-8 for the position and name of each component in a 21-inch cabinet
(300 mm in depth).
1-12 Version: A
1 Cabinet
(1) Wiring hole at the cabinet top (2) Cabinet Indicator
(3) ESD protection earth ground fastener (4) Rear door
(5) Wiring channel (6) Wiring hole at the cabinet bottom
(7) Mounting hole on the vertical mounting (8) Front door

flanges
(9) Mounting hole for the top-connection bent (10) Cabinet-top ventilation hole
angle bracket
Figure 1-8 General Structure of a 21-Inch Cabinet (300 mm in Depth)
Version: A 1-13
Table 1-7 lists names and functions of major components in a 21-inch cabinet (300
mm in depth).
Table 1-7 Names and Functions of Major Components in a 21-inch Cabinet (300 mm in depth)
Component Number Name Function

When top access wiring mode is used, all wires and
(1) Wiring hole on cabinet top
cables are led in and out via these holes
Three alarm LEDs (green, red, and yellow),
(2) Cabinet Indicator LED
indicating alarm status information of the cabinet
For installing the ESD protection wrist strap to

ESD protection earth
(3) prevent the equipment from the electrostatic
ground fastener
damage
(5) Wiring channel For laying wires and cables

Cabinet body Wiring hole at cabinet When bottom access wiring mode is used, all wires
(6)
bottom and cables are led in and out via these holes
Mounting hole on the For securing the subracks and the PDP inside the
(7)
vertical mounting flanges cabinet
Mounting hole for the top-
(9) connection bent angle For installing the top-connection bent angle bracket
bracket
Ventilation hole at cabinet
(10) At the cabinet top, for air cooling of the cabinet
top
(4) Rear door For protecting subracks, and preventing dust from
Cabinet door
(8) Front door entering the subracks
1.2.4 Indicator
Indicators of the 21-inch cabinet are located at the cabinet top. They indicate the
operating status of the equipment and levels of generated alarms.
1-14 Version: A
1 Cabinet
(1) Red indicator (2) Yellow indicator (3) Green indicator
Figure 1-9 Indicators on the 21–inch Cabinet
The 21-inch cabinet provides three indicators. Table 1-8 describes the status of
each indicator.
Table 1-8 Indicators on the 21-inch Cabinet
ON The PDP is connected to the power supply.

Green The equipment is disconnected from the power
OFF
supply.

Red (critical/major
The equipment does not have any critical or major
alarm indicator) OFF
alarm.
Yellow (minor alarm ON The equipment has a minor alarm.

indicator) OFF The equipment does not have a minor alarm.
1.2.5 Typical Layout
To ensure normal air cooling and wiring, observe the following principles when
installation each component of the cabinet:
Version: A 1-15
u Arrange subracks according to the typical layout of cabinets in different

dimensions.
u Do not occupy the minimum reserved space shown in the typical layout. The
minimum reserved space above or under each subrack is reserved for air
cooling or wiring of the equipment.
u If the cabinet is not fully occupied, arrange subracks from the bottom up and
reserve the upper space for capacity expansion.
Figure 1-10 shows the typical layout of the CiTRANS R820 in 21-inch cabinets.
Figure 1-10 Typical Layout of the 21-inch Cabinet
1-16 Version: A
2 PDP
The following introduces the PDP used by the CiTRANS R820.
Model
Function
Appearance
Front Panel
Connection Terminals and Switches
Lightning Protection Module
Technical Parameters
Version: A 2-1
2.1 Model
The CiTRANS R820 uses the PDP250B. The hardware codes of the PDP is
3.000.073-1FB (applicable to a 19-inch cabinet) or 3.000.073-2FB (applicable to a
21-inch cabinet).
2.2 Function
Major functions of this PDP250B are as follows:
u The PDP introduces the active and standby -48 V power inputs from the
outside (such as the head of row cabinet) and outputs active and standby
power concurrently for two subracks.
u The PDP receives the alarm information from subracks, presents alarms
through indicators on top of the cabinet, and reports alarms to an upper-level
equipment (such as the head of row cabinet).
u It also implements the lightning protection function and withstands a voltage

surge of differential mode 2 kV or common mode 4 kV to ensure normal
operation of the equipment.
2.3 Appearance
Figure 2-1 shows the appearance of a PDP250B.
2-2 Version: A
2 PDP
Figure 2-1 Appearance of the PDP250B
2.4 Front Panel
On the front panel of the PDP250B, the positions of automatic circuit breakers and
lightning protection failure indicator (FAIL) are marked, as shown in Figure 2-2.
Figure 2-2 Front Panel of the PDP250B
Version: A 2-3
2.5 Connection Terminals and Switches
The following introduces functions of connection terminals and switches on the

PDP250B.
2.5.1 Connection Terminal Board
After removing the front panel of the PDP250B, you can see that components (such
as connection terminals and buzzers) are distributed on the panel of the PDP250B,
as shown in Figure 2-3 and Table 2-1.
Figure 2-3 Connection Terminal Card of the PDP250B
Table 2-1 Components on the PDP250B Connection Terminal Board
Terminal & Jumper

Component Description
Pin
1 SW1, SW2 Automatic circuit breaker of the main power supply
2 XPB1 Alarm terminal of the head of row cabinet

3 XPB2 Alarm terminal of the cabinet indicator
4 JP1 Jumper pin for selecting the PDP operating status
XS4 (active) 0V: 0 V input terminal of the external power supply;

5
XS3 (standby) PE: terminal of the protection earth ground cable
2-4 Version: A
2 PDP
Table 2-1 Components on the PDP250B Connection Terminal Board (Continued)
Terminal & Jumper

Component Description
Pin
6 XS13, XS14, XS1 Subrack alarm convergence connector
SW1–1 to SW1–3 Automatic circuit breaker of each branch power

7
SW2–1 to SW2–3 supply
Lightning protection module sockets (working in

8 XS11, XS12
active/standby mode)
9 XP1 Lightning protection failure alarm terminal
10 SPK1 Buzzer used to generate audio alarms
0 V output terminals (working in active/standby

11 XS2, XS5
mode)
12 XPB3, XPB4, XPB5 Subrack alarm convergence connector
2.5.2 Switches
The PDP250B provides two main power switches and six branch power switches,
as shown in Figure 2-4.
u Main power switches: including SW1 and SW2, which control the connections
with the active and standby -48 V power supplies, respectively.
u Branch power switches: including SW1–1 to SW1–3 and SW2–1 to SW2–3,

which control the connections with three branches of the active -48 V power
supply and three branches of the standby -48 V power supply, respectively.
Figure 2-4 Panel of the PDP250B
Version: A 2-5
2.5.3 Power Terminals
u Table 2-2 describes the input terminals of the external power supply.
Table 2-2 Input Terminals of the External Power Supply
Connection Terminal Description
SW1, SW2
-48 V input terminals of the external power supply
0V terminals of XS3 and XS4
0 V input terminals of the external power supply
PE terminals of XS3 and XS4
Terminals of the protection earth ground connection

terminals
u Table 2-3 describes output terminals of the branch power supply.
2-6 Version: A
2 PDP
Table 2-3 Output Terminals of the Branch Power Supply
Connection Terminal Description
SW1–1 to SW1–3
SW2–1 to SW2–3
-48 V output terminals of the branch power supply
0V_1 to 0V_3 terminals of XS2

0V_1 to 0V_3 terminals of XS5
0 V output terminals of the branch power supply
2.5.4 Other Terminals
Subrack Alarm Input Terminals
The subrack alarm input can be connected to the XS1/XS13/XS14 terminal or

XPB3/XPB4/XPB5 terminal of the PDP250B. For descriptions about each terminal,
see Table 2-4.
Table 2-4 Subrack Alarm Input Terminals
Terminal Name Interface Type Function

XPB3 6-pin connector The six pins from When the equipment alarm
XPB4 top to bottom are output is connected to this
as follows: SPK-, terminal, the lightning protection
SPK+, 0V, CALL, failure alarm is sent to the
XPB5
NUA, and UA. OTNM2000 through the XS11
and XS12 terminals.
Version: A 2-7
Table 2-4 Subrack Alarm Input Terminals (Continued)
Terminal Name Interface Type Function

XS1 Terminals 1 to 8 are
XS13 Network cable defined in
When the equipment alarm
connector sequence as
output is connected to this
follows: SPK-, SPK
terminal, the lightning protection
+, 0V, CALL,
XS14 failure alarm is directly sent to
NUA/UA, ALM,
the OTNM2000.
ALM-, and ALM+.
Cabinet Alarm Indicator Terminal
XPB2 is the terminal for Outputting the signals triggered by the cabinet indicators.
Pins from top to bottom are defined as follows: green power indicator (-, +); yellow
indicator for non-critical alarms (-, +), and red indicator for critical alarms (-, +).
Alarm Terminal of the Head of Row Cabinet
XPB1 is an alarm terminal of the head of row cabinet. The three pins from the top
down output the CALL, NUA, and UA signals, respectively.
Lightning Protection Failure Alarm Terminal
The lightning protection failure alarm signal is sent to the equipment through the
XS1 terminal on the PDP.
Buzzer
SPK1 can generate audio alarms.
2.6 Lightning Protection Module
The lightning protection module (card No.: 3.578.403/7.200.038) uses a standard

DB-25 plug to connect to the lightning protection module sockets (XS11 and XS12).
It can withstand a voltage surge of differential mode 2 kV (1.2/50 us to 8/20 us
combination wave) or common mode 4 kV (1.2/50 us to 8/20 us combination wave)
to ensure normal operation of the equipment.
Figure 2-5 shows the lightning protection module.
2-8 Version: A
2 PDP
Figure 2-5 Lightning Protection Module
Table 2-5 Definitions of Pins on the Plug of the Lightning Protection Module
Pin Definition Description
Protection earth
1, 14 For ground protection.
ground
Discharges the lightning surge to the ground, and is

Level 1 lightning
2, 3, 15, 16 connected to the level 2 lightning protection 0 V
protection 0 V
through an inductor.
Ensures that safe power supplies are provided for the

Level 2 lightning
5, 6, 18, 19 equipment, and is connected to the level 1 lightning
protection 0 V
protection 0 V through an inductor.
Lightning When the lightning protection module fails, the

8, 20 protection failure indicator on the module is solid red, and the pins output
alarm a relatively high level.
Ensures that safe power supplies are provided for the

Level 2 lightning
9, 10, 21, 22 equipment, and is connected to the level 1 lightning
protection N48 V
protection N48 V through an inductor.
Discharges the lightning surge to the ground, and is

Level 1 lightning
12, 13, 24, 25 connected to the level 2 lightning protection N48 V
protection N48 V
through an inductor.
Note 1: Pins not included in the table are currently not in use.
Version: A 2-9
2.7 Technical Parameters

Table 2-6 PDP250B Technical Parameters
Item Performance Specification
Input voltage range (V) -38 to -58

Input Maximum input current
50 per branch
(A)
Output voltage range (V) -37 to -59

Output Output branch 6 output branches
Output current (A) 32 per branch
Receive an alarm signal reported by the equipment,

Alarm signal processing generate audio alarms for the signal, drive the cabinet
function indicator, and output the alarm signal to the upper-
Alarm function level equipment (such as the head of row cabinet).
Lightning protection When the lightning protection module fails, output the
module alarm reporting lightning protection module failure alarm to the
function OTNM2000.
Electromag- Radiated emission (RE) Comply with the EN55022 Class B standard.
netic
Conducted emission
interference Comply with the EN55022 Class B standard.
(CE)
(EMI)
Electrostatic discharge
Comply with the IEC61000-4-2 standard.
(ESD)
Electromag-
netic Radiated susceptibility
compatibility (RS)
Electromag-
(EMC) netic Electrical fast transient
susceptibility (EFT)
(EMS) Surge Comply with the IEC61000-4-5 standard.
Conducted susceptibility
(CS)
Voltage dip (DIP) Comply with the IEC61000-4-29 standard.
Safety regulation Comply with the IEC60950 standard.
An 8/20us 2kA test surge current is imposed in the

Differential mode positive and negative directions between the external
DC lightning protection
protection power input terminals -48 V and 0 V. The PDP can
work normally after the surge current is imposed.
2-10 Version: A
2 PDP
Table 2-6 PDP250B Technical Parameters (Continued)
A 8/20us 2kA test surge current is imposed in the

positive and negative directions between the external
Common mode
power input terminals -48 V and PE and between 0 V
protection
and PE. The PDP can work normally after the surge
current is imposed.
Operating temperature
0 to 50
(oC)
Storage temperature
-40 to 70
Environment (oC)
Relative humidity ≤95%

Atmospheric pressure
70 to 106
(kPa)
Version: A 2-11
3 AC/DC Power Adapter
The following introduces the AC/DC power adapter used by the CiTRANS R820.
Model
Function
Appearance
Version: A 3-1
3.1 Model
The following AC/DC power adapter models are used by the CiTRANS R820,
including PTSP000146, PTSP000147, PTSP000151, and PTSP000153. The AC/
DC power adapter model is configured according to the project requirements.
3.2 Function
The AC/DC power adapter configured for the CiTRANS R820 converts the AC
power (110 V to 230 V) to the DC power (-48 V).
Two hot-swappable rectifier modules (PSUs) are configured for the system, and the
normal operating voltage range of the PSU is 90 V to 290 V.
A monitoring module (PMU) is configured for the system. This module can manage
the storage batteries and monitor the power supply system. In addition, it provides
the RS232 and RS485 communication interfaces to implement remote monitoring
and unattended service.
3.3 Appearance
The AC/DC power adapter is located at the top of the cabinet. Its appearance and
structure are shown in Figure 3-1.
3-2 Version: A
3 AC/DC Power Adapter
Figure 3-1 Appearance of the AC/DC Power Adapter

Table 3-1 Technical Parameters of the AC/DC Power Adapter
Input voltage range (V) 154 to 286

Input voltage frequency (Hz) 47 to 63
Input
AC input system Three-wire single-phase
Maximum input current (A) 3

Output voltage range (V) 50
Output
Maximum output power (W) 120
Mechanical
H x W x D (mm) 40100200
feature
Version: A 3-3
4 Subrack
The subrack is the core unit of the CiTRANS R820. It accommodates various cards.
The following introduces the structure and technical parameters of the CiTRANS
R820 subrack.
Subrack Structure
Fan Control Card
Slot Allocation
Access Bandwidth
Safety Sign
Version: A 4-1
4.1 Subrack Structure
Figure 4-1 shows the structure of a CiTRANS R820 subrack. Table 4-1 describes
each component of the subrack.
(1) Mounting ear (2) Earth ground pole and earth label
(3) Fan control card (4) Card area
(5) ESD protection earth ground

fastener and ESD label
Figure 4-1 Appearance and Structure of a Subrack
Table 4-1 Components in a Subrack
S.N. Name Function Remark

(1) Mounting ear For fixing the subrack onto the cabinet -
Subrack earth ground For notifying operators where the protection
(2) pole and earth ground earth ground cable of the subrack should be -
label connected to
Located on the left of the
(3) Fan control card For air cooling the equipment
subrack card area
For inserting the core switch card, power
(4) Card area -
card, and each service card
ESD protection earth For notifying operators to wear the ESD
(5) ground fastener and protection wrist strap when performing -
ESD protection label operations on the equipment
4-2 Version: A
4 Subrack
4.2 Fan Control Card
The following introduces the functions, appearance, intelligent fan control, indicators,
safety sign, and technical parameters of the fan control card used by the CiTRANS
R820.
4.2.1 Model
The model of the fan control card used by the CiTRANS R820 is 2.200.816.
4.2.2 Function
The fan control card is used for air cooling the equipment. The OTNM2000 can
control the operating status of fans to ensure that the equipment runs normally and
efficiently at a stable ambient temperature.
4.2.3 Appearance
The fan control card is located on the left of the subrack card area. It consists of
three standalone fans. Figure 4-2 shows the appearance of a fan control card.
Figure 4-2 Appearance of the Fan Control Card
Version: A 4-3
4.2.4 Intelligent Fan Control
Overview
The CiTRANS R820 fan control card works in either intelligent or manual mode.
u Intelligent mode: The fan rotation speed is automatically adjusted according to

the temperature reported by each card of the equipment.
u Manual mode: The fan unit rotates according to the speed set in the
OTNM2000. Optional speeds include full speed, high speed, intermediate and
high speed, intermediate speed, low and intermediate speed, low speed, and
ultra-low speed.
Warning:
In manual mode, changes in the equipment temperature cannot be

monitored in real time, which may result in damages to the equipment.
When the equipment runs normally, ensure that the fan control card
works in intelligent mode.
Function Implementation
The fan control card adopts the slow start mode to reduce the impacts on the
equipment when fans are started. In intelligent mode, fans run at the medium speed
after the fans are started and before the core switch card controls the fans.
u After core switch card controls the fans, it periodically collects the temperature
information reported by each card inside the equipment, compares the
collected information with the built-in fan rotation speed parameters of each
card to determine the fan speed choice for the fans.
u The fan control card controls the speed of fans according to the fan speed
choice sent by the core switch card to ensure a proper air cooling effect of the
equipment.
u When a fan is faulty, the fan control card sends the fault information to the core
switch card and reports the fan faulty alarm to the OTNM2000.
4-4 Version: A
4 Subrack
4.2.5 Indicator
Two indicators are available on the panel of the fan control card, as described in
Table 4-2.
Table 4-2 Indicators on the Fan Control Card
Sign Abbreviation Color Meaning Description
ON: The fan control card is powered

Operating on.
ACT Green
indicator OFF: The fan control card is
powered off.
ON (red): The fan control card has a

critical alarm.
Alarm ON (yellow): The fan control card
ALM Red/yellow
indicator has a non-critical alarm.
OFF: The fan control card does not
have any alarm.
4.2.6 Safety Sign
Table 4-3 describes the safety sign on the fan control board.
Table 4-3 Safety Sign on the Fan Control Board
Sign Meaning Location
The fan safety warning sign,

Located on the front panel of
reminding operators not to touch the
the fan control board
rotating fan blades.
4.2.7 Technical Parameters
Table 4-4 lists technical parameters of the fan control card.
Version: A 4-5
Table 4-4 Technical Parameters of the Fan Control Card
Technical Specification Description
Dimensions (HWD) (mm) 4123238

Weight (kg) 0.3
Maximum power consumption (W) 18
4.3 Slot Allocation
The CiTRANS R820 subrack provides five card slots. Figure 4-3 shows how the
slots are allocated.
Figure 4-3 Slot Allocation of a Subrack
Slots 01, 04, and 05 in the CiTRANS R820 subrack are permanently allocated to the
SCUS1/2/3, PWRS1, and fan control card. Slots 02 and 03 are service slots where
various types of service cards can be inserted.
4.4 Access Bandwidth
The CiTRANS R820 can process a maximum routing & switching capacity of 26G.
Figure 4-4 shows the maximum capacity of the remaining service slots, excluding
the slots 01, 04 and 05 that are permanently allocated to the core switch card,
power card, and fan control card.
Figure 4-4 Access Capacity
4-6 Version: A
4 Subrack
4.5 Safety Sign
Table 4-5 describes meanings of safety signs on the subrack.
Table 4-5 The Subrack Safety Signs
Sign Meaning
ESD protection sign. This sign reminds the maintenance staff to wear the
PE ESD protection wrist strap during operations to prevent possible
damages to the equipment caused by the human body electrostatic.
Subrack earth ground sign. This sign marks the location of the subrack
ESD
earth ground.
Table 4-6 lists technical parameters of the subrack.
Table 4-6 Technical Parameters of the Subrack
Technical Specification Description
Dimensions (HWD) (mm) 44.4447223

Weight (kg) 6.0
Power consumption in full configuration (W) 94
Power consumption in typical configuration (W) 72
DC voltage range (V) -40 to -60
Maximum current (A) 2.5
Version: A 4-7
5 Card
The following introduces functions and panels of cards on the CiTRANS R820.
Overview
Introduction to Cards
Version: A 5-1
5.1 Overview
The following introduces the appearance, structure, classification, and positioning of

each type of cards in the system.
5.1.1 Appearance
Figure 5-1 shows the appearance of a card.
(1) Card label (2) Card name (3) Card interface
(4) Latch (5) Captive screw
Figure 5-1 Appearance of a Card
Table 5-1 lists dimensions of cards used on the CiTRANS R820.
Table 5-1 Dimensions of Cards
Card Panel dimensions (HWD, mm)
SCUS1/2/3 20386198
PWRS1 4126223
MSS1/2/3, E1S1 20192198
5-2 Version: A
5 Card
5.1.2 Structure
The CiTRANS R820 uses three types of cards. The following illustrates three views
of each type of cards.
Service Card
Figure 5-2 shows the three views of a service card using the E1S1 card as an
example.
Figure 5-2 Three Views of the Service Card
Core Switch Card
Figure 5-3 shows the three views of a core switch card using the SCUS1 card as an
example.
Version: A 5-3
Figure 5-3 Three Views of the Core Switch Card
Power Card
Figure 5-4 shows the three views of a power card.
Figure 5-4 Three Views of the Power Card
5-4 Version: A
5 Card
5.1.3 Classification
Cards on the CiTRANS R820 can be classified by function into the service cards,
core switch cards, and power cards. Table 5-2 describes how these cards are
classified.
Table 5-2 Classification of Cards
Type Card Meaning
Core switch card SCUS2 Router System Control Unit2
Power card PWRS1 Power Supply Terminal Card
MSS1 Octal Port Ethernet Mixed Interface Card

MSS2 Four Port Ethernet Mixed Interface Card
Service card
MSS3 Two Port Ethernet Mixed Interface Card
E1S1 16 E1 Line Card with CES
5.1.4 Positioning of Cards in the System
Figure 5-5 shows the positioning of the CiTRANS R820 cards in the system. For
details about cards, see the later descriptions about cards.
Version: A 5-5
Figure 5-5 Positioning of Cards in the System
5.1.5 Mapping between Cards and Slots
Table 5-3 describes the mapping between cards and slots.
Table 5-3 Mapping between Cards and Slots
Slot Type Card Meaning Slot

Slot of the core
SCUS2 Router System Control Unit2 01
switch card
Slot of the power

PWRS1 Power Supply Terminal Card 04
card
Octal Port Ethernet Mixed
MSS1
Interface Card
Slot of the service Four Port Ethernet Mixed Interface
MSS2 02, 03
card Card
Two Port Ethernet Mixed Interface
MSS3
Card
5-6 Version: A
5 Card
Table 5-3 Mapping between Cards and Slots (Continued)
Slot Type Card Meaning Slot
E1S1 16 E1 Line Card with CES 02, 03
5.2 Introduction to Cards
The following introduces the models, major functions, service processing capability,
panels, slots, and technical parameters of cards on the CiTRANS R820.
5.2.1 SCUS1/SCUS2/SCUS3
The following introduces the models and functions of the SCUS1/SCUS2/SCUS3

cards.
Model
u SCUS1 model: 2.200.813
Functions
u NE management functions
4 The panel provides the auxiliary management interfaces, including the

Console, Aux, AIF, and COM interfaces.
4 Supports remote writing of IP address and reading of slot IDs.
4 Provides the temperature detection function and reports the temperature

information.
4 Supplies power to and monitors the fan control card; supports fan alarm
detection and fan speed adjustment.
4 Collects and reports the lightning protection failure alarms of power cards
and the PDP.
4 Detects and reports the voltage and current of the -48 V power supply, and
reports the power consumption.
Version: A 5-7
4 Collects and distribute single-card configurations, alarms, and

performance data.
u Service access and switching functions
4 Provides a switching capacity of 26G.
4 Processes packets, for example, identifies, terminates, encapsulates, and

discards packets and performs unicast and multicast processing for
packets.
4 Implements different types of protection, such as 1:1 tunnel, LAG, PW

redundancy, LDP FRR, IP FRR, VPN FRR, MPLS TE FRR, and VRRP.
4 Supports OAM at four layers: link layer, tunnel layer, PW layer, and
Ethernet service layer.
4 Supports the hierarchical QoS function.
u Time and clock synchronization functions
4 Provides the 25 MHz (single-ended TTL) system clock and the 8 kHz
frame timing clock required by each card.
4 Supports synchronous Ethernet interfaces.
4 Supports the interface for synchronizing external frequencies and

implements input and output of E1 HDB3 or E1 Hz clocks.
4 Support IEEE 1588v2.
4 Supports the external time interface TOD and can use this interface to
issue or receive the time.
Panel Description
Figure 5-6 shows the panel of the SCUS1/SCUS2/SCUS3 card.
5-8 Version: A
5 Card
Figure 5-6 Front Panel of the SCUS1/SCUS2/SCUS3 Card
Table 5-4 describes the panel of the SCUS1/SCUS2/SCUS3 card. Table 5-5
describes the interfaces or terminals on the panel.
Version: A 5-9
Table 5-4 Panel of the SCUS1/SCUS2/SCUS3 Card
Indicator/Interface/Button Description
Non-critical alarm indicator (yellow)

OFF: The card does not have any minor alarm, or all the
NUA
minor alarms are filtered.
ON: The card has a minor alarm.
Critical alarm indicator (red)
OFF: The card does not have any critical or major alarm, or
UA
all the critical or major alarms are filtered.
ON: The card has a critical or major alarm.
Operating indicator (green)

Blinking quickly: The card is operating normally.
Blinking slowly: The card is in standby state.
ACT
OFF: The card is not operating normally.
ON: The card is not operating normally, or communication
between the card and the OTNM2000 is not smooth.
BCT response indicator (green)
Blinking: Communication between the BCT and the NE
management unit is normal, or the card is upgrading its
software.
SUBS
No blinking: The NE management unit has not received the
BCT response.
Blinking irregularly: Communication between a BCT and the
NE management unit is abnormal.
SCC communication indicator (green)

SCC Blinking: The control plane data is available on the optical
line.
MCC communication indicator (green)
MCC Blinking: The management plane data is available on the
optical line.
Press the button to reset the card.

Caution: Resetting the card can cause service
RST
interruption. DO NOT press this button in the normal
operating status.
Press this button to shut down the alarm speaker at the

CR
cabinet top.
Network management interface, remote

F/AUX Interface type:
Aux serial port
RJ45
SCU signaling interface, SCU Console
SIG/CON
serial port
5-10 Version: A
5 Card
Table 5-4 Panel of the SCUS1/SCUS2/SCUS3 Card (Continued)
Indicator/Interface/Button Description
Ethernet debugging COM interface,

COM/MC
equipment room monitoring M/C interface
The auxiliary terminal interface, used to

AIF take charge of the auxiliary terminal
board.
CKIO Inputs/outputs clock signals.
TOD Inputs/outputs time signals.
USB Data switching interface
GE / FE1 to GE / Interface type:

FE/GE adaptive electrical port
FE4 RJ45
SCUS1
FE/GE compatible optical port
FE10 LC
Interface type:
FE1 to FE4 FE electrical port
RJ45
Interface type:
SCUS2 FE5 to FE8 FE optical port
LC
Interface type:
GE9 to GE10 GE optical port
LC
Interface type:
FE1 to FE4 FE electrical port
RJ45
SCUS3
FE/GE compatible optical port
FE8 LC
Table 5-5 Definitions of Interfaces or Terminals on the Panel of the SCUS1/SCUS2/SCUS3
Diagram Interface Pin Note 1 Name Description
Positive terminal of the Ethernet data

1 FTP
output
Negative terminal of the Ethernet

2 FTN
data output

3 FRP
F/AUX data input
4 E Serial port signal ground
5 LDR Serial port data input

6 FRN
data input
8 LDT Serial port data output
Version: A 5-11

(Continued)

1 FTP
output

2 FTN
data output

3 FRP
SIG/CON input

6 FRN
data input

1 FTP
output

2 FTN
data output

3 FRP
input
Equipment room monitoring signal

4 MON
COM/MC input
Equipment room monitoring signal

5 E
ground

6 FRN
data input
Equipment room control signal

7 E
ground
8 CTR Equipment room control signal output
Negative terminal of the audio alarm

1 SPK-
signal output
Positive terminal of the audio alarm

2 SPK+
signal output
AIF
3 COM CALL, NUA, and UA common loops
4 CALL Call signal
5 NUA Non-critical alarm

6 UA Critical alarm
5-12 Version: A
5 Card

(Continued)
Negative terminal of the lightning

7 LALM-
protection alarm signal input
Positive terminal of the lightning

8 LALM+
protection alarm signal input
1 CLKOP External clock output
2 CLKON -
3 PE Protection earth ground

CKIO
4 CLKIP External clock input
5 CLKIN -
3 PPS_N Negative terminal of the PPS signal
4 GND Signal ground
5 GND Signal ground

TOD
6 PPS_P Positive terminal of the PPS signal
7 TOD_N Negative terminal of the TOD signal
8 TOD_P Positive terminal of the TOD signal
Applicable Slot
The SCUS1/SCUS2/SCUS3 is inserted to slot 01.
Table 5-6 lists mechanical parameters and power consumption of the SCUS1/
SCUS2/SCUS3 card.
Table 5-6 Technical Parameters of the SCUS1/SCUS2/SCUS3 Card
Dimensions (H × W × D)
Card Name Weight (kg) Power Consumption (W)
(mm)
SCUS1 2.4 20×386×198 55

SCUS2 2.4 20 × 386 × 198 53
SCUS3 2.4 20 × 386 × 198 52
Version: A 5-13
Table 5-7 and Table 5-8 list the interface specifications of the SCUS1/SCUS2/
SCUS3 card.
Table 5-7 GE Optical Interface Specifications of the SCUS1/SCUS2/SCUS3 Card
Item Specification
1000BAS- 1000BASE- 1000BASE- 1000BAS- 1000BASE-

Optical interface type
E-SX LX VX E-ZX1 ZX2
Source type MLM MLM SLM SLM SLM
Target distance (km) 0.55 10 40 80 100
Mean launched power
-9.5 to 0 -8 to -3 -2 to 3 -2 to 5 -2 to 5
(dBm)
Center wavelength 1270 to 1275 to 1500 to 1500 to

770 to 860
(nm) 1355 1350 1580 1580
Overload optical
0 -3 -3 -3 -9
power (dBm)
Receiving sensitivity
-17 -20 -23 -23 -31
(dBm)
Minimum extinction
9 9 9 9 9
ratio (dB)
Table 5-8 FE Optical Interface Specifications of the SCUS1/SCUS2/SCUS3 Card
Item Specification
Optical interface type 100BASE-FX 100BASE-FX 100BASE-FX

Target distance (km) 15 40 80
Source type SLM SLM SLM
Mean launched power
-14 to -8 -4 to 0 -4 to 0
(dBm)
Center wavelength (nm) 1265 to 1360 1265 to 1360 1480 to 1580

Overload optical power
-8 -10 -10
(dBm)
Receiving sensitivity (dBm) -31 -37 -37

Minimum extinction ratio
8.5 10.5 10.5
(dB)
5-14 Version: A
5 Card
5.2.2 MSS1/MSS2/MSS3
The following introduces the models and functions of the MSS1, MSS2, and MSS3
cards.
Model
u MSS1 model: 2.200.814
u MSS2 model: 2.201.343
u MSS3 model: 2.201.344
Functions
u Provides the GE/FE optical interfaces.
u Transforms the -48 V voltage to the 3.3 V or 1.5 V voltage and provides the
voltage to each module on the card.
u Completes signal conversion and outputs the active and standby GE signals to
the backplane.
u Processes the clock, data, and card control signals.
u Supports hot-insertion of cards and optical modules.
Accessed Services and Quantity
Table 5-9 Accessed Service Types and Quantity of the MSS1/MSS2/MSS3 Card
Card Interface Quantity Service Type Service Rate
MSS1 8 GE/FE 100Mbit/s, 1.25Gbit/s
Panel Description
Figure 5-7 shows the panel of the MSS1/MSS2/MSS3 card.
Version: A 5-15
Figure 5-7 Panel of the MSS1/MSS2/MSS3 Card
Table 5-10 describes the panel of the MSS1/MSS2/MSS3 card.
5-16 Version: A
5 Card
Table 5-10 Panel of the MSS1/MSS2/MSS3 Card
Indicator/Interface/But-
Description
ton
ACT ON or OFF: The card is not operating normally.
(ON generally means a poor communication between the card and
the OTNM2000.)

OFF: The card does not have any critical or major alarm, or all the
UA
critical or major alarms are filtered.

OFF: The card does not have any minor alarm, or all the minor
NUA
alarms are filtered.
GE / FE1 to GE / FE8 Inputs or outputs FE / GE signals. Interface type: LC
Applicable Slot
The MSS1/MSS2/MSS3 card can be inserted to slot 02 or 03.
Table 5-11 lists mechanical parameters and power consumption of the MSS1/
MSS2/MSS3 card. Table 5-12 and Table 5-13 list specifications of the GE and FE
optical interfaces.
Table 5-11 Technical Specifications of the MSS1/MSS2/MSS3 Card
Dimensions (H W D)
Card Weight (kg) Power Consumption (W)
(mm)
MSS1 0.5 20 192 198 8.5

MSS2 0.5 20 192 198 7
MSS3 0.5 20 192 198 6
Table 5-12 GE Optical Interface Specifications of the MSS1/MSS2/MSS3 Card
Item Specification
1000BAS- 1000BASE- 1000BASE- 1000BAS- 1000BASE-

Optical interface type
E-SX LX VX E-ZX1 ZX2
Source type MLM MLM SLM SLM SLM
Version: A 5-17
Table 5-12 GE Optical Interface Specifications of the MSS1/MSS2/MSS3 Card (Continued)
Item Specification
Target distance (km) 0.55 10 40 80 100

Mean launched power
-9.5 to 0 -8 to -3 -2 to 3 -2 to 5 -2 to 5
(dBm)
Center wavelength 1270 to 1275 to 1500 to 1500 to

770 to 860
(nm) 1355 1350 1580 1580
Overload optical
0 -3 -3 -3 -9
power (dBm)
Receiving sensitivity
-17 -20 -23 -23 -31
(dBm)
Minimum extinction
9 9 9 9 9
ratio (dB)
Table 5-13 FE Optical Interface Specifications of the MSS1/MSS2/MSS3 Card
Item Specification
Optical interface type 100BASE-FX 100BASE-FX 100BASE-FX

Target distance (km) 15 40 80
Source type SLM SLM SLM
Mean launched power (dBm) -14 to -8 -4 to 0 -4 to 0
Center wavelength (nm) 1265 to 1360 1265 to 1360 1480 to 1580
Overload optical power (dBm) -8 -10 -10
Receiving sensitivity (dBm) -31 -37 -37
Minimum extinction ratio (dB) 8.5 10.5 10.5
5.2.3 E1S1
The following introduces the model and functions of the E1S1 card.
Model
E1S1 model: 2.200.868
Functions
u The E1S1 card implements the circuit emulation function that encapsulates 1 to
16 lines of E1 signals into GE signals.
5-18 Version: A
5 Card
u The interfaces provided by the E1S1 card comply with ITU-T Y.1413, IETF PW3
emulation draft, and MEF8.
u Transmits data with low delay, meeting the requirements of real-time services.
u Provides 75-ohm and 120-ohm E1 interfaces and supports soft switching of the
interface types based on the configuration on the OTNM2000.
u Supports the structured and unstructured emulation modes.
u Supports the differential and adaptive clock recovery modes.
u Supports over-voltage/under-voltage protection and power alarm monitoring.
u Supports line loopback and equipment loopback.
u Supports hot insertion.
u Supports remote upgrade to FPGA and BCT software.
Accessed Service Types and Quantity
Table 5-14 Accessed Service Types and Quantity of the E1S1 Card
Card Number of Accessed E1s Service Type Service Rate

E1S1 16 E1 2 Mbit/s
Panel Description
Figure 5-8 shows the panel of the E1S1 card.
Version: A 5-19
Figure 5-8 Panel of the E1S1 Card
Table 5-15 describes the panel of the E1S1 card.
Table 5-15 Panel of the E1S1 Card
Indicator/Interface/-
Description
Button
ACT OFF: The card is not operating normally.
ON: The card is not operating normally, or communication between
the card and the OTNM2000 is not smooth.
OFF: The card does not have any critical or major alarm, or all the
UA
critical or major alarms are filtered.
5-20 Version: A
5 Card
Table 5-15 Panel of the E1S1 Card (Continued)
Indicator/Interface/-
Description
Button
The card does not have any minor alarm, or all the minor alarms are
NUA
filtered.
Inputs or outputs 16 lines of 2 Mbit/s signals.
Applicable Slot
The E1S1 card can be inserted to slot 02 or 03.
Table 5-16 and Table 5-17 lists mechanical parameters, power consumption, and
interface specifications of the E1S1 card.
Table 5-16 Technical Specifications of the E1S1 Card
Item Specification
Weight (kg) 0.5

Power consumption (W) 11
Dimensions (H W D) (mm) 20 192 198
Table 5-17 Interface Specifications of the E1S1 Card
Item Specification
Nominal bit rate (kbit/s) 2048

Bit rate accuracy 50ppm (102.4bit/s)
Code HDB3
Pulse type (nominal rectangular) G.703 sample compliant
Pair per transmission direction One coaxial pair One symmetrical pair
Test load impedance (Ω) 75 120

Nominal peak voltage of a mark (pulse) (V) 2.37 3
Version: A 5-21
Table 5-17 Interface Specifications of the E1S1 Card (Continued)
Item Specification
Peak voltage of a space (no pulse) (V) 00.237 00.3

Nominal pulse width (ns) 244
Ratio of the amplitudes of positive and
negative pulses at the center of a pulse 0.95 to 1.05
interval
Ratio of the widths of positive and negative
0.95 to 1.05
pulses at the nominal half amplitude
Jitter of the input/output port ITU-T Rec. G.823 compliant
Return loss between 51 kHz and 102 kHz ≥ 6

Return loss of the output port (dB)
Return loss between 102 kHz and 2048 kHz ≥
Return loss of the input port (dB) 18
Return loss between 2048 kHz and 3072 kHz ≥
14
Allowed input attenuation (dB) 0 to 6 (1024 kHz)
5.2.4 PWRS1
Model
PWRS1 model: 2.200.911
Functions
Table 5-18 describes major functions of the PWRS1 card.
Table 5-18 Major Functions of the PWRS1 Card
Card Type Major Function
Provides two -48 V power inputs.
Supports EMI power filtering.

PWRS1
Supports lightning protection, over-voltage/under-voltage protection,
and transient interruption protection.
5-22 Version: A
5 Card
Panel Description
Figure 5-9 shows the panel of the PWRS1 card.
Figure 5-9 Panel of the PWRS1 Card
Table 5-19 describes the panel of the PWRS1 card.
Table 5-19 Panel of the PWRS1 Card
Indicator/Interface Description
Power output indicator (green)

ACTA/ACTB
ON: The power output is normal.
Lightning protection failure alarm indicator (red)

ALMA/ACTB
ON: The lightning protection function fails.
A+, A-: 48 V input of the A line
B+, B-: 48 V input of the B line
Applicable Slot
The PWRS1 card is inserted to slot 04.
Table 5-20 describes the technical parameters of the PWRS1 card.
Version: A 5-23
Table 5-20 Technical Parameters of the PWRS1 Card
Item Specification
Weight (kg) 0.3

Dimensions (H W D) (mm) 41 26 223
Maximum power consumption (W) 1.6
Voltage (V) 40 to -60
Under-voltage protection point (V) -362
Under-voltage recovery point (V) -382
Over-voltage protection point (V) -632
Over-voltage recovery point (V) -622
Transient interruption protection (ms) 20.5
5-24 Version: A
6 Cables
The following introduces the cables and connectors used by the CiTRANS R820.
Overview
Power Cable and Earth Ground Cable
Alarm Cable
E1 Cable
Network Cable
Optical Fiber Jumper
Version: A 6-1
6.1 Overview
Table 6-1 lists the cables and connectors used by the CiTRANS R820.
Table 6-1 Cables and Connectors Used by the CiTRANS R820
Cable Type Cable Name Cable Model Usage
3.696.093 (blue)
3.696.094 (black) Leads the external power supply to
Cabinet power cable
3.696.096 the PDP.
(yellow/green)
Cabinet protection earth Connects the PDP to the cabinet

3.696.044
Power cable and ground cable protection earth ground.
earth ground cable Configured for the PWRS1 card. It
leads the branch power supply from
Subrack power cable 408000161
the PDP to a subrack. The default
length is 2 meters.
Subrack protection earth Connects the subrack to the cabinet

3.696.084
ground cable protection earth ground.
Alarm cable of the head of row Sends the equipment alarms to the
3.695.135
Alarm cable cabinet head of row cabinet.
Subrack alarm cable 3.695.095 Sends alarms to the PDP.
2Mbit/s 75Ω cable 409000031 Inputs/outputs E1 signals. The
E1 cable
2Mbit/s 120Ω cable 409000040 default length is 10 meters.
Connects the computer where the

3.695.095 (straight-
Connects the OTNM2000 to OTNM2000 is installed to the
through cable)
the equipment. equipment and transfers monitoring
3.695.096 (cross-
signals.
over cable)
Ethernet service cable Sends the Ethernet data service.
Network cable
Transfers time signals and is
Time cable 3.695.458 generally interconnected with an
external time source.
75Ω interface clock cable 409000060
Inputs/outputs clock signals.
120Ω interface clock cable 409000059
LC/PC-LC/PC-S-20
Connects an optical interface on a
Optical fiber jumper External optical fiber LC/PC-FC/PC-S-20
card to the ODF.
LC/PC-SC/PC-S-20
6-2 Version: A
6 Cables
6.2 Power Cable and Earth Ground Cable
Power cables used by the CiTRANS R820 include the cabinet power cables and
subrack power cables.
Earth ground cables used by the CiTRANS R820 include the cabinet protection
earth ground cables and subrack protection earth ground cables.
6.2.1 Cabinet Power Cable
The following introduces the model, usage, structure, connection method, and
technical parameters of the cabinet power cable.
Model
The cabinet power cable is a tri-color power cable. Table 6-2 lists the models of the
cabinet power cable.
Table 6-2 Models of the Cabinet Power Cable
Color Property Model
Blue -48 V DC 3.696.093

Black 0 V DC 3.696.094
Yellow/green Protection earth ground 3.696.096
Usage
The cabinet power cable leads the power supply from the equipment room to the
PDP on the cabinet.
Structure
As shown in Table 6-2, one end of the cabinet power cable is a square-shape plug
and the other end is the naked wire.
Figure 6-1 Cabinet Power Cable
Version: A 6-3
Connection Method
Table 6-3 describes how the cabinet power cable is connected.
Table 6-3 Connection Method of the Cabinet Power Cable
Cable Name Terminal Connected to

Naked wire PE terminal of XS4 on the PDP
Protection earth
Uninsulated ring
ground cable Protection earth ground of the
tongue crimped
(yellow/green) equipment room
terminal
Naked wire 0 V terminal of XS4 on the PDP
0 V power cable of
Protection earth ground of the
the active power Square-shape
active power supply in the
supply (black) plug
equipment room
Naked wire 0 V terminal of XS3

0 V power cable of
Cabinet Protection earth ground of the
the standby power Square-shape
power cable standby power supply in the
supply (black) plug
equipment room
SW1 of the active power supply on

-48 V power cable of Naked wire
the PDP
the active power
Square-shape Active -48 V power supply in the
supply (blue)
plug equipment room
SW2 of the standby power supply

-48 V power cable of Naked wire
on the PDP
the standby power
Square-shape Standby -48 V power supply in the
supply (blue)
plug equipment room
Table 6-4 lists technical parameters of the cabinet power cable.
Table 6-4 Technical Parameters of the Cabinet Power Cable
Item Specification
Cable type Double-jacket 105C heat resistant single core flexible cable
3.696.093 Blue
Color 3.696.094 Black
3.696.096 Yellow/green
Maximum current (A) 40

Conductor cross-sectional area
10
(mm2)
6-4 Version: A
6 Cables
6.2.2 Cabinet Protection Earth Ground Cable
technical parameters of the cabinet protection earth ground cable.
Model
The model of the cabinet protection earth ground cable is 3.696.044.
Usage
The cabinet protection earth ground cable connects the earth ground point of the
cabinet to the protection earth ground of the PDP. Upon delivery of the equipment,
the cabinet protection earth ground cable is already connected to the PE terminal on
the PDP.
Structure
As shown in Figure 6-2, one end of the cabinet protection earth ground cable is the
naked wire, and the other end is an uninsulated spade tongue terminal. Between
two ends is a yellow/green cable.
Figure 6-2 Cabinet Protection Earth Ground Cable
Connection Method
Table 6-5 describes how the cabinet protection earth ground cable is connected.
Table 6-5 Connection Method of the Cabinet Protection Earth Ground Cable

Uninsulated spade tongue
Cabinet protection Cabinet protection earth ground
terminal
earth ground cable
Naked wire PEterminal of the XS3
Table 6-6 lists technical parameters of the cabinet protection earth ground cable.
Version: A 6-5
Table 6-6 Technical Parameters of the Cabinet Protection Earth Ground Cable
Item Specification
Cable type Multi strand single core flexible cable
Color Yellow/green

Conductor cross-sectional area (mm2) 4
6.2.3 Subrack Power Cable
technical parameters of the subrack power cable.
Generally, the PDP is used to supply the DC power to subracks.
Model
The model of the subrack power cable is 408000161.
Usage
The subrack power cable connects the PDP to a subrack and leads in the active
and standby power supplies from the PDP to the subrack. Upon delivery of the
equipment, the subrack power cables inside the cabinet are already connected.
Structure
Figure 6-3 shows the structure of the subrack power cable.
(1) Blue wire -48V A+ (2) Black wire -0V A-
(3) Blue wire -48V B+ (4) Black wire -0V B-
Figure 6-3 Structure of the Subrack Power Cable
6-6 Version: A
6 Cables
Connection Method
Table 6-7 describes how the subrack power cable is connected.
Table 6-7 Connection Method of the Subrack Power Cable
Blue wire Any branch switch on the PDP

Subrack power
Blue wire 0 V terminal of the XS2/XS5 on the PDP
cable
Connector post Power supply jack on the PWRS1 card
Table 6-8 lists technical parameters of the subrack power cable.
Table 6-8 Technical Parameters of the Subrack Power Cable
Item Specification
Power terminal 2.5mm2/27A/blue

Connector post 12A/4P
Power cable (blue, black) RVV2 2.5 (49/0.25)
6.2.4 Subrack Protection Earth Ground Cable
technical parameters of the subrack protection earth ground cable.
Model
The model of the subrack protection earth ground cable is 3.696.084.
Usage
The subrack protection earth ground cable connects a subrack to the vertical
mounting flange of the cabinet to implement earth ground protection of the subrack.
Version: A 6-7
Structure
As shown in Figure 6-4, both ends of the subrack protection earth ground cable are
uninsulated ring tongue crimped terminals. Between two ends is a yellow/green
cable.
Figure 6-4 Subrack Protection Earth Ground Cable
Connection Method
Table 6-9 describes how the subrack protection earth ground cable is connected.
Table 6-9 Connection Method of the Subrack Protection Earth Ground Cable

Uninsulated ring tongue
Earth ground pole on the subrack
Subrack crimped terminal on one end
protection earth Uninsulated ring tongue
Mounting hole on the rear vertical
ground cable crimped terminal on the other
mounting flange of the cabinet
end
Table 6-10 lists technical parameters of the subrack protection earth ground cable.
Table 6-10 Technical Parameters of the Subrack Protection Earth Ground Cable
Item Specification
Cable type Multi strand single core flexible cable
Color Yellow/green

2
Conductor cross-sectional area (mm ) 4
6.3 Alarm Cable
Alarm cables used by the CiTRANS R820 includes the alarm cable of the head of
row cabinet and the subrack alarm cables.
6-8 Version: A
6 Cables
6.3.1 Alarm Cable of the Head of Row Cabinet
technical parameters of the alarm cable of the head of row cabinet.
Model
The model of the alarm cable of the head of row cabinet is 3.696.135.
Usage
The alarm cable of the head of row cabinet connects the PDP to the head of row
cabinet. It sends the equipment alarm signals from a cabinet to the head of row
cabinet.
Structure
As shown in Figure 6-5, one end of the alarm cable of the head of row cabinet is a
three-core D-type connector, and the other end is a three-core cable led out from
this connector.
(1) Brown, Call (2) Black, Nua (3) Blue, Ua
Figure 6-5 Alarm Cable of the Head of Row Cabinet
Connection Method
Table 6-11 describes how the alarm cable of the head of row cabinet is connected.
Version: A 6-9
Table 6-11 Connection Method of the Alarm Cable of the Head of Row Cabinet
Alarm cable of the head of Three-core D-type connector XPB1 on the PDP
row cabinet Three-core cable Head of row cabinet
Table 6-12 lists technical parameters of the alarm cable of the head of row cabinet.
Table 6-12 Technical Parameters of the Alarm Cable of the Head of Row Cabinet
Item Specification
Cable type AVVR

Color Brown/black/blue
Conductor cross-sectional area (mm2) 3 0.5
6.3.2 Subrack Alarm Cable
technical parameters of the subrack alarm cable.
Model
The model of the subrack alarm cable is 3.695.095.
Usage
The subrack alarm cable connects a subrack to the PDP and outputs the subrack
alarms to the PDP.
Structure
The subrack alarm cable is a straight-through cable, as shown in Figure 6-6.
6-10 Version: A
6 Cables
Figure 6-6 Alarm Cable of a Subrack
As shown in Figure 6-7, both ends of the subrack alarm cable are RJ-45 connectors.
Figure 6-7 RJ-45 Connector
Table 6-13 describes the color-coding scheme of a straight-through cable are

connected.
Table 6-13 Pinout and Wiring of A Straight-through Cable
Pin on the Local End Core Wire Color Pin on the Peer End
1 White/orange 1
2 Orange 2
3 White/green 3
4 Blue 4
5 White/blue 5
6 Green 6
7 White/brown 7
8 Brown 8
Version: A 6-11
Connection Method
Table 6-14 describes how the subrack alarm cable is connected.
Table 6-14 Connection Method of the Subrack Alarm Cable

AIF interface on the SCUS1/2/3 card in the
RJ-45 connector on one end
Subrack alarm subrack
cable RJ-45 connector on the
XS1, XS13, or XS14 on the PDP
other end
Table 6-15 lists technical parameters of the subrack alarm cable.
Table 6-15 Technical Parameters of the Subrack Alarm Cable
Item Specification
Cable type CAT-5 twisted pair
Connection type RJ-45

Number of cores 8
Diameter of the inner conductor AWG 24
Breakdown voltage (V) 2000
6.4 E1 Cable
The following introduces the E1 coaxial cable used by the CiTRANS R820.
Model
u Model of the 75Ω E1 cable: 409000031
u Model of the 120Ω E1 cable: 409000040
Usage
An E1 cable can transmit 16 channels of E1 signals. It connects the E1 interface of

the E1S1 to the DDF and inputs/outputs E1 signals. The CiTRANS R820 uses the
75Ω and 120Ω E1 cables.
6-12 Version: A
6 Cables
Structure
On the equipment side, a 64-pin E1 straight bus end connector is used to connect
the E1 cable to the 2 Mbit/s interface. This connector is prepared before delivery of
the equipment. The other end of the E1 cable is connected to the DDF, and the
connector must be prepared on site.
Figure 6-8 shows the connector of the E1 cable on the equipment side.
Figure 6-8 Connector of an E1 Cable
Table 6-16 Pinout and Wiring Scheme of the E1 Cable
Cable Defini- Cable Defini- Cable Defini- Cable Defini-

Pin Pin Pin Pin
SN tion SN tion SN tion SN tion
1 1 33 17 9 9 41 25
R0 R8 R4 R12
2 1 34 17 10 9 42 25
17 2 49 18 25 10 57 26
T0 T8 T4 T12
18 2 50 18 26 10 58 26
3 3 35 19 11 11 43 27
R1 R9 R5 R13
4 3 36 19 12 11 44 27
19 4 51 20 27 12 59 28
T1 T9 T5 T13
20 4 52 20 28 12 60 28
5 5 37 21 13 13 45 29
R2 R10 R6 R14
6 5 38 21 14 13 46 29
21 6 53 22 29 14 61 30
T2 T10 T6 T14
22 6 54 22 30 14 62 30
7 7 39 23 15 15 47 31
R3 R11 R7 R15
8 7 40 23 16 15 48 31
23 8 55 24 31 16 63 32
T3 T11 T7 T15
24 8 56 24 32 16 64 32
Version: A 6-13
Connection Method
Table 6-17 describes how the E1 cable is connected.
Table 6-17 Connection Method of the E1 Cable
Terminal Connected to
64-pin E1 straight bus end connector E1 interface on the E1S1 card in a subrack
Naked wire DDF
6.5 Network Cable
The following introduces network cables used by the CiTRANS R820.
6.5.1 Network Cable Between the OTNM2000 and the

Equipment
Model
u 3.695.095 (straight-through cable)
u 3.695.096 (cross-over cable)
Usage
The network cable connects the OTNM2000 host to the equipment and transfers
monitoring signals.
Structure
Two types of common network cables, including the straight-through cable and the
cross-over cable, are configured for the equipment. The network cable is equipped
with RJ-45 connectors on both ends, as shown in Figure 6-9.
Figure 6-9 Network Cable
6-14 Version: A
6 Cables
Connection Method
OTNM2000 monitoring cables (straight-through cables and cross-over cables) are

connected as follows:
u Cross-over cable: One end of the cross-over cable is connected to the F / AUX
port on the SCUS1/2/3 card, and the other end is connected to the network
adapter port of the computer where the OTNM2000 is installed.
u Straight-through cable: Two straight-through cables are needed. The first

straight-through cable connects the F / AUX port on the SCUS1/2/3 card to a
hub. The second straight-through cable connects the hub to the network
adapter port of the computer where the OTNM2000 is installed.
Table 6-18 lists technical parameters of the network cable between the OTNM2000
and the equipment
Table 6-18 Technical Parameters of the Network Cable between the OTNM2000 and the
Equipment
Name Cable Model Interface Type
Network cable between

Communication cable - 8-core CAT-5
the OTNM2000 and the RJ-45 connector
twisted pair - 24 AWG
equipment
6.5.2 Ethernet Service Cable
Model
u 3.695.095 (straight-through cable)
u 3.695.096 (cross-over cable)
Usage
The Ethernet service cable connects the Ethernet service interface card (ESQ1) to
the RJ-45 connector of the Ethernet data service transmission equipment. It is used
for the Ethernet service transmission.
Version: A 6-15
Structure
Two types of common network cables, including the straight-through cable and the
cross-over cable, are configured as the Ethernet service cables for the equipment.
The network cable is equipped with RJ-45 connectors on both ends, as shown in
Figure 6-10.
Figure 6-10 Network Cable
Connection Method
Ethernet service cables (straight-through cables and cross-over cables) are

connected as follows:
u The RJ-45 connector on one end is connected to the RJ-45 port on the SCUS1
card.
u The RJ-45 connector on the other end is connected to the RJ-45 port on the
Ethernet data service transmission equipment.
Table 6-19 lists technical parameters of the Ethernet service cable.
Table 6-19 Technical Parameters of the Ethernet Service Cable
Ethernet service Communication cable - 8-core CAT-5

RJ-45 connector
cable twisted pair - 24 AWG
6.5.3 Clock and Time Cables
The following introduces clock cables and time cables used by the CiTRANS R820.
6-16 Version: A
6 Cables
Model
Model of the 75Ω clock cable: 409000060
Model of the 120Ω clock cable: 409000059
Model of the time cable: 3.695.458
Usage
The clock cable is used to transmit clock synchronization signals.
The clock cable is used to transmit time synchronization signals.
Structure
Figure 6-11 shows the appearance of the 75 ohm and 120 ohm clock cable.
Figure 6-11 Appearance of the Clock and Time Cable
u Table 6-20 defines the pinouts and wiring scheme of the 120 ohm clock cable.
Table 6-20 Pinout and Wiring Scheme of the 120 ohm Clock Cable
RJ-45 Connector Cable

Pin Color Coaxial Cable Definition
1 White / Orange
Twisted-pair cable 1 T
2 Orange
3 White / Green — —
Version: A 6-17
Table 6-20 Pinout and Wiring Scheme of the 120 ohm Clock Cable (Continued)

4 Blue
Twisted-pair cable 2 R
5 White / Blue
6 Green — —
7 White / Brown — —
8 Brown — —
u Table 6-21 defines the pinouts and wiring scheme of the 75 ohm clock cable.
Table 6-21 Pinout and Wiring Scheme of the 75 ohm Clock Cable
RJ-45
Cable
Connector
1 White / Orange The first core wire
T
2 Orange The first shielding wire
3 White / Green — —
4 Blue The second core wire
The second shielding R
5 White / Blue
wire
6 Green — —
7 White / Brown — —
8 Brown — —
u One end of the time cable is an RJ-45 connector, and the other end consists of
bare wires, as illustrated in Figure 6-11. See Table 6-22 for the pinouts and
wiring scheme of the time cable.
Table 6-22 Pinout and Wiring Scheme of the Time Cable

Pin Color Relationship
1 Orange / White
A pair
2 Orange
3 Green / White
A pair
4 Green
6-18 Version: A
6 Cables
Table 6-22 Pinout and Wiring Scheme of the Time Cable (Continued)

Pin Color Relationship
5 Blue / White
A pair
6 Blue
7 Brown / White
A pair
8 Brown
Connection Method
u Table 6-23 describes how the external clock cable is connected.
Table 6-23 Connection Method of the External Clock Cable
The RJ-45 connector CKIO interface on the SCUS1/2/3 card in a subrack
The other end External clock source interface
u Table 6-24 describes how the time cable is connected.
Table 6-24 Connection Method of the Time Cable
The RJ-45 connector TOD interface on the SCUS1/2/3 card in a subrack
The other end Time source
Table 6-25 lists technical parameters of the clock and time cables.
Table 6-25 Technical Parameters of the Clock And Time Cables
Item Specification
Cable type CAT-5 Ethernet twisted pair
Connection type RJ-45
Number of cores 8
Diameter of the inner conductor AWG 24
Breakdown voltage (V) 2000
Version: A 6-19
6.6 Optical Fiber Jumper
The following introduces optical fiber jumpers used by the CiTRANS R820.
Model
The CiTRANS R820 uses the following types of optical fiber jumpers:
u Model of the LC/PC optical fiber jumper: OFC-LC/PC-LC/PC-S-20
u Model of the SC/PC optical fiber jumper: OFC-LC/PC-SC/PC-S-20
u Model of the FC/PC optical fiber jumper: OFC-LC/PC-FC/PC-S-20
Usage
As the transmission carrier of optical signals, the optical fiber jumper is used for
short-distance transmission of optical signals. It connects the optical interface on a
card to the ODF.
Structure
Figure 6-12 shows a LC/PC optical fiber jumper.
Figure 6-12 LC/PC Optical Fiber Jumper
Figure 6-13 shows a SC/PC optical fiber jumper.
Figure 6-13 SC/PC Optical Fiber Jumper
Figure 6-14 shows a FC/PC optical fiber jumper.
6-20 Version: A
6 Cables
Figure 6-14 FC/PC Optical Fiber Jumper
Connection Method
The LC/PC-LC/PC optical fiber jumper is used inside a cabinet, whereas LC/PC-FC/
PC and LC/PC-SC/PC optical fiber jumpers are used for connection between the
equipment to the ODF.
Table 6-26 lists technical parameters of optical fiber jumpers.
Table 6-26 Technical Parameters of Optical Fiber Jumpers
2.0 mm single-mode/multi-mode optical fiber

LC/PC-LC/PC
(LC/PC-LC/PC-S-20)
Optical fiber 2.0 mm single-mode/multi-mode optical fiber

LC/PC-FC/PC
jumper (LC/PC-FC/PC-S-20)
2.0 mm single-mode/multi-mode optical fiber

LC/PC-SC/PC
(LC/PC-SC/PC-S-20)
Version: A 6-21
Appendix A Card Name and
Number List
Table A-1 summarizes the names and numbers of cards.
Table A-1 Names and Numbers of the Cards
Card Type Card Name Card Number
Router System Control Unit SCUS1 2.200.813
Router System Control Unit2 SCUS2 2.201.342

Router System Control Unit3 SCUS3 2.201.363
Octal Port Ethernet Mixed Interface Card MSS1 2.200.814
Four Port Ethernet Mixed Interface Card MSS2 2.201.343
Two Port Ethernet Mixed Interface Card MSS3 2.201.344
16 Port E1 Line Card with CES E1S1 2.200.868
Power Supply Terminal Card PWRS1 2.200.911
FAN Control Card FAN 2.200.816
Version: A A-1
Appendix B Size, Weight, and
Power Consumption
Table B-1 Mechanical Size and Power Consumption
Dimensions (H W D)
Item Weight (kg) Power consumption (W)
(mm)
Subrack 44.4 447 223 6.0 –

SCUS1 20 38 198 2.4 55
SCUS2 20 386 198 2.4 53
SCUS3 20 386 198 2.4 52
MSS1 20 192 198 0.5 8.5
MSS2 20 192 198 0.5 7
MSS3 20 192 198 0.5 6
E1S1 20192198 0.5 11
PWRS1 4126223 0.3 1.6
Fan control card 41 23 238 0.3 15.4
Version: A B-1
Appendix C Interfaces
The following introduces interfaces of the CiTRANS R820 cards.
C.1 Optical Interface
Optical interfaces on the panel of a CiTRANS R820 optical interface card are
classified into the RX optical interfaces for inputting optical signals and TX optical
interface for outputting optical signals. The LC optical connector is used.
Caution:
u DO NOT stare at optical interfaces with unprotected eyes; otherwise,

eyes may be hurt by laser beams.
u If an optical fiber should be removed for a long time, cover the optical
interface with an anti-dust cap.
u Use a fiber puller when inserting or pulling out an optical fiber.
C.2 Electrical Interface
The following introduces electrical interfaces of the CiTRANS R820 cards.
C.2.1 RJ-45 Connector
An RJ-45 connector is equipped with a yellow indicator and a green indicator.
u If the yellow indicator is constantly on, the link on the port is normal.
u If the green indicator blinks, the port is receiving or sending data.
Table C-1 describes the RJ-45 connector on the panel of the SCUS1/2/3 card.
Version: A C-1
Table C-1 Description about the RJ-45 Connector on the Panel of the SCUS1/2/3 Card

1 FTP
output
Negative terminal of the Ethernet data

2 FTN
output
F/AUX 3 FRP Positive terminal of the Ethernet data input
6 FRN Negative terminal of the Ethernet data input

1 FTP
output

2 FTN
output
SIG/CON 3 FRP Positive terminal of the Ethernet data input

1 FTP
output

2 FTN
output
3 FRP Positive terminal of the Ethernet data input

COM/MC Equipment room monitoring signal input
4 MON
5 E Equipment room monitoring signal ground
7 E Equipment room control signal ground
8 CTR Equipment room control signal output
Negative terminal of the audio alarm signal

1 SPK-
output
Positive terminal of the audio alarm signal

2 SPK+
AIF output
3 COM CALL, NUA, and UA common loops
4 CALL Call signal
5 NUA Non-critical alarm
C-2 Version: A
Appendix C Interfaces
Table C-1 Description about the RJ-45 Connector on the Panel of the SCUS1/2/3 Card
(Continued)
6 UA Critical alarm
Negative terminal of the lightning protection
7 LALM-
alarm signal input
Positive terminal of the lightning protection

8 LALM+
alarm signal input
1 CLKOP External clock output
2 CLKON -

CKIO
4 CLKIP External clock input
5 CLKIN -
3 PPS_N Negative terminal of the PPS signal
4 GND Signal ground
5 GND Signal ground

TOD
6 PPS_P Positive terminal of the PPS signal
7 TOD_N Negative terminal of the TOD signal
8 TOD_P Positive terminal of the TOD signal
C.2.2 E1 Interface
An E1 interface can transmit 16 channels of E1 signals. It connects the E1S1 card

to the DDF and inputs/outputs E1 signals. The 75Ω and 120Ω E1 cables can be
used to connect E1 interfaces on the CiTRANS R820.
The E1S1 card of the CiTRANS R820 provides E1 interfaces. Figure C-1 shows a
64-pin E1 interface.
Version: A C-3
Figure C -1 E1 Interface
For definitions of pins on the 75Ω or 120Ω E1 interface, see the Installation Guide.
C-4 Version: A
Appendix D Indicators
The following introduces the status and meaning of each indicator on the CiTRANS
R820.
D.1 Indicators on the Cabinet
Three indicators are available on the lintel of the CiTRANS R820 cabinet door.
Table D-1 describes the status of each indicator.
Table D-1 Indicators on the Cabinet
ON The equipment is operating normally.

Power indicator (green) The equipment is disconnected from the power
OFF
supply.

Critical/major alarm
The equipment does not have any critical or
indicator (red) OFF
major alarm.
Minor alarm indicator ON The equipment has a minor alarm.

(yellow) OFF The equipment does not have a minor alarm.
D.2 Indicators on the Fan Control Card
The fan control card provides indicators to indicate the operating status of the card.
Table D-2 describes indicators on the fan control card.
Table D-2 Indicators on the Fan Control Card
Indicator Meaning Description
If the indicator is on, the fan control card is

ACT (green) Operating indicator powered on.
ON: The fan control card is powered on.
ON (red): The fan control card has a critical

alarm.
ALM (red/yellow) Alarm indicator
ON (yellow): The fan control card has a non-
critical alarm.
Version: A D-1
Table D-2 Indicators on the Fan Control Card (Continued)
OFF: The fan control card does not have any

alarm.
D.3 Indicators on Cards
Indicators on a card indicate the operating status and alarm status of the card.
Table D-3 Indicators on Cards
Blinking quickly (green): The card is operating

normally.
OFF: The card is not operating normally.
ACT Card operating indicator
ON (green): The card is not operating normally, or
communication between the card and the
OTNM2000 is not smooth.
OFF: The card does not have any critical alarm, or
UA Critical alarm indicator all the critical alarms are filtered.
ON (red): The card has a critical or major alarm.
OFF: The card does not have any minor alarm, or

NUA Minor alarm indicator all the minor alarms are filtered.
ON (yellow): The card has a minor alarm.
Table D-4 Indicators on the Panel of the SCUS1/2/3 Card

Blinking slowly: The card is standby.
ACT Card operating indicator OFF: The card is not operating normally.
ON (green): The card is not operating normally, or
not communicating smoothly with the EMS.
OFF: The local NE does not have any critical alarm,

UA Critical alarm indicator or all the critical alarms are filtered.
ON (red): The local NE has a critical or major alarm.
OFF: The local NE does not have any non—critical

Non-critical alarm alarm, or all the non—critical alarms are filtered.
NUA
indicator ON (yellow): The local NE has a non—critical
alarm.
D-2 Version: A
Appendix D Indicators
Table D-4 Indicators on the Panel of the SCUS1/2/3 Card (Continued)
MCC communication Blinking (green): The management plane data is

MCC
indicator available on the optical line.
SCC communication Blinking (green): The control plane data is available

SCC
indicator on the optical line.
Blinking (green): Communication between the BCT

and the NE management unit is normal, or the card
is upgrading its software.
SBUS BCT response indicator No blinking: The NE management unit has not
received the BCT response.
Blinking irregularly: Communication between a BCT
and the NE management unit is abnormal.
Table D-5 Indicators on the Panel of the PWRS1 Card
Indicator LED Meaning Description
ON (green): The output of the power

ACT Power output indicator
card is normal.
Lightning protection failure alarm ON (red): The lightning protection
ALM
indicator function fails.
Version: A D-3
Appendix E Abbreviations
AC Attachment Circuit
ACL Access Control List
APS Automatic Protection Switching
ARP Address Resolution Protocol

AS Autonomous System
Automatically Switched Optical

ASON
Network
ATM Asynchronous Transfer Mode
BC Boundary Clock
BDR Backup Designated Router
BFD Bidirectional Forwarding Detection
BGP Border Gateway Protocol
BITS Building Integrated Timing Supply
BMC Best Master Clock

BMU Board Management Unit
BPDU Bridge Protocol Data Unit
BSC Base Station Controller

CAR Committed Access Rate
CBS Committed Burst Size
CE Custom Edge
CES Circuit Emulation Service

CFM Connectivity Fault Management
CIR Committed Information Rate

CLV Code Length Value
CRC Cyclic Redundancy Check
CSNP Complete Sequence Number Packet
CSPF Constrained Shortest Path First

CV Connectivity Verification
DCN Data Communication Network

DDF Digital Distribution Frame
DDN Digital Data Network
DHCP Dynamic Host Configuration Protocol
DiffServ Differentiated Services
Version: A E-1
DIS Designated Intermediate System
DoS Denial of Service

DR Designated Router
DSCP Differentiated Services Code Point

DTE Data Terminating Entity
E2ETC End-to-end Transparent Clock
EBGP External Border Gateway Protocol
ECMP Equal-Cost Multi-Path
EFM Ethernet in the First Mile

EMC Electromagnetic Compatibility
EMI ElectroMagnetic Interference
EVC Ethernet Virtual Connection

FC Fiber Channel
FE Fast Ethernet
FEC Forwarding Equivalence Class
FIB Forwarding Information Base
FPGA Field Programmable Gate Array
FR Frame Relay
FRR Fast Reroute

GE Gigabit Ethernet
GR Graceful Restart
GRE Generic Routing Encapsulation
GPS Global Positioning System
GUI Graphical User Interface
HoVPN Hierarchy of VPN
IBGP Internal Border Gateway Protocol
IC Integrated Circuit
Institute of Electrical and Electronics

IEEE
Engineers
IETF Internet Engineering Task Force
IGP Interior Gateway Protocol
IP Internet Protocol
IPSec Internet Protocol Security
IPTV Internet Protocol Television

IPv4 Internet Protocol Version 4
IPv6 Internet Protocol Version 6
IS Intermediate System
E-2 Version: A
Intermediate System to Intermediate

IS-IS
System
ISP Internet Service Provider

International Telecommunication
ITU
Union
ITU Telecommunication
ITU-T
Standardization Sector
IVL Independent VLAN Learning
L2VPN Layer 2 Virtual Private Network
L3VPN Layer 3 Virtual Private Network
LACP Link Aggregation Control Protocol
LAG Link Aggregation Group
LDP Label Distribution Protocol

LSDB Link State Database
LSP Label Switched Path
LSP Link State Packet
LSR Label Switching Router
LTE Long Term Evolution
MA Maintenance Association
MAC Media Access Control
Multi-chassis Link Aggregation
Group
MD Maintenance Domain
MDF Main Distribution Frame
MEF Metro Ethernet Forum
MEN Metro Ethernet Network
MEP Maintenance End Point
MIMO Multiple-Input and Multiple-Out-put
MIP Maintenance Intermediate Point

MME Mobility Management Entity
MP-BGP Multiprotocol Extensions for BGP-4
MPLS Multiprotocol Label Switching
Multiprotocol Label Switching

MPLS-TP
Transport Profile
Multiprotocol Label Switching Traffic

MPLS TE
Engineering
MS-PW Multi-Segment Pseudo-Wire
MSTP Multi-Service Transport Platform
Version: A E-3
MTU Maximum Transmission Unit

NPE Network Provider Edge
NSF None Stop Forwarding
NTP Network Time Protocol

Operation, Administration and
OAM
Maintenance
OC Ordinary Clock
ODF Optical Distribution Frame
Orthogonal Frequency Division

OFDM
Multiplex
OSI Open Systems Interconnection
OSPF Open Shortest Path First
P2PTC Peer-to-peer Transparent Clock
PBS Peak Burst Size

PDP Power Distribution Panel
PE Operator Edge
PHB Per-Hop Behavior
PHP Penultimate Hop Popping
PIR Peak Information Rate

PPPoE Point-to-Point Protocol over Ethernet
PSNP Partial Sequence Number Packet
PTN Packet Transport Network
PTP Precision Time Protocol

PW Pseudo Wire
PWE3 Emulation Edge-to-Edge
QinQ 802.1Q In 802.1Q / Double VLAN

QoS Quality of Service
RAN Radio Access Network

RD Route Distinguisher
RIP Routing Information Protocol
RIPng RIP Next Generation

RNC Radio Network Controller
RSVP Resource Reservation Protocol
RTP Real-time Transport Protocol
SDH Synchronous Digital Hierarchy
SFP Small Form-Factor Pluggable
SGW Signaling Gateway
E-4 Version: A
SN Serial Number
SNCP Subnet Connection Protection
SNP Sequence Number Packet
SONET Synchronous Optical Network
SP Strict Priority
SPF Shortest Path First

SR Service Router
SSM Synchronization Status Message
STM Synchronous Transport Module
SVL Shared VLAN Learning
TC Transparent Clock
TDM Time Division Multiplexing
TPID Tag Protocol Identifier
TPS Tributary Protection Switching
UPS Uninterruptible Power Supply
URPF Unicast Reverse Path Forwarding
UPE User-Facing Provider Edge
VC Virtual Channel
VC Virtual Circuit
VLAN Virtual Local Area Network
VPLS Virtual Private LAN Service
VPN Virtual Private Network
VPRN Virtual Private Routing Network
VPWS Virtual Private Wire Service

VRRP Virtual Router Redundancy Protocol
WFQ Weighted Fair Queuing
WRED Weighted Random Early Detection
10-Gigabit Small Form-factor

XFP
Pluggable
Version: A E-5
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CiTRANS R820

FiberHome Telecommunication Technologies Co., Ltd.

We appreciate your business. Your satisfaction is our goal.

Fiberhome Telecommunication Technologies Co., Ltd.

Address: No. 67, Guanggu Chuangye Jie, Wuhan, Hubei, China

are trademarks of FiberHome Telecommunication Technologies Co., Ltd.

All rights reserved

No part of this document (including the electronic version) may be

Introduces the product's functions and features, protection

Introduces the structure, functions, specifications, and

This manual is intended for the following readers:

u Planning and designing engineers

u Operation and maintenance engineers

To utilize this manual, these prerequisite skills are necessary:

u Data communication technology

u SDH communication theory

CiTRANS R820 FiberHome CiTRANS R820 Edge Router

FiberHome e-Fim OTNM2000 Element Management

SCUS1 Router System Control Unit

SCUS2 Router System Control Unit2

SCUS3 Router System Control Unit3

MSS1 Octal Port Ethernet Mixed Interface Card

FAN FAN Control Card

Symbol Convention Description

Note Important features or operation guide.

Possible injury to persons or systems, or cause traffic

Warning May cause severe bodily injuries.

➔ Jump symbol Jump to another step.

Related Documentation ...................................................................................I

Intended Readers ...........................................................................................II

1.1 19-inch Cabinet .............................................................................1-2

1.1.1 Model ..............................................................................1-2

1.2 21-inch Cabinet .............................................................................1-9

1.2.1 Model ............................................................................1-10

2.1 Model ............................................................................................2-2

2.2 Function ........................................................................................2-2

2.4 Front Panel....................................................................................2-3

2.5 Connection Terminals and Switches ...............................................2-4

2.5.1 Connection Terminal Board ..............................................2-4

2.6 Lightning Protection Module...........................................................2-8

3 AC/DC Power Adapter .................................................................................3-1

3.1 Model ............................................................................................3-2

3.2 Function ........................................................................................3-2

3.4 Technical Parameters ....................................................................3-3

4.1 Subrack Structure ..........................................................................4-2

4.2 Fan Control Card ...........................................................................4-3

4.2.1 Model ..............................................................................4-3

4.3 Slot Allocation................................................................................4-6

4.4 Access Bandwidth .........................................................................4-6

4.5 Safety Sign ....................................................................................4-7

4.6 Technical Parameters ....................................................................4-7

5.1 Overview .......................................................................................5-2

5.1.1 Appearance .....................................................................5-2

5.2 Introduction to Cards......................................................................5-7

6.2 Power Cable and Earth Ground Cable............................................6-3

6.2.1 Cabinet Power Cable .......................................................6-3

6.3 Alarm Cable...................................................................................6-8

6.3.1 Alarm Cable of the Head of Row Cabinet..........................6-9

6.4 E1 Cable .....................................................................................6-12

6.5 Network Cable .............................................................................6-14