7750 SR c12 Installation Guide PDF
7750 SR c12 Installation Guide PDF
7750 SR c12 Installation Guide PDF
INSTALLATION GUIDE
July 2009
Document Part Number: 93-0078-05-02
*93-0078-05-02*
Copyright © 2009 Alcatel-Lucent. All rights reserved.
Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of
their respective owners.
No portion of this document may be reproduced in any form or means without prior written permission from Alcatel-Lucent.
Information in this document is proprietary and confidential to Alcatel-Lucent.
The information presented is subject to change without notice.
Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.
VCCI-A
Caution:
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous
laser radiation exposure.
TABLE OF CONTENTS
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Site Preparation
Warnings and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
System Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Chassis Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Environmental Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
MDA/MCM-XP Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
CMA Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Component Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Component Operating Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Installation Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Chassis Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Compliance Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
Preface
Table 1: Information Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Site Preparation
Table 2: 7750 SR-c12 Chassis Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 3: Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 4: MDA Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 5: CMA Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 6: Component Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 7: 7750 SR-c12 Hardware Components for DC Operational Requirements . . . . . . . . . . . . . . . . . . 37
Table 8: 7750 SR-c12 Hardware Components for AC Operational Requirements . . . . . . . . . . . . . . . . . . 37
Table 9: Chassis Clearance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Table 10: Power Cord Set Requirements – By Country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Table 11: Common Grounding-Type (Earthing) Power Cord Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 12: Storage Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 13: Compliance Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Site Preparation
Figure 13: Chassis Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Each 7750 SR-c12 supports up to six MDAs with associated MCM-XPs, up to eight CMAs, or a
combination. Each 7750 SR-c12 is shipped with blank panels installed in the component slots.
Blank panels are required in empty slots to ensure cooling, for EMI containment during operation,
and to prevent dust accumulation. Refer to the included MDA and CMA guides for installation and
LED information.
AUDIENCE
This guide is intended for network installers and system administrators who are responsible for
installing, configuring, or maintaining networks. This guide assumes you are familiar with
electronic and networking technologies.
INFORMATION SYMBOLS
Table 1 describes symbols contained in this guide:
Danger This symbol warns that improper handling and installation could result in bodily
injury. An electric shock hazard could exist. Before you begin work on this
equipment, be aware of hazards involving electrical circuitry, networking
environments, and instigate accident prevention procedures.
Caution This symbol warns that improper handling and installation could result in
equipment damage or loss of data.
Warning This symbol warns that improper handling may reduce your component or
system performance.
Class 1 laser products are listed in the Media Dependent Adapter (MDA)
Class 1 Laser Product installation guides. Only approved Class 1 replaceable laser transceivers should
be used with this product.
TECHNICAL SUPPORT
If you purchased a service agreement for your 7750 SR-c12 and related products from a distributor
or authorized reseller, contact the technical support staff for that distributor or reseller for
assistance. If you purchased an Alcatel-Lucent service agreement, contact technical assistance at:
Web: http://www1.alcatel-lucent.com/comps/pages/carrier_support.jhtml
In This Chapter
This chapter provides information about preparing your site to install a 7750 SR-c12
router.
Warning:
• Do not assume that power has been disconnected from a circuit. Be sure to disconnect power to
the equipment rack and external cables before installing or removing the 7750 SR-c12.
• Do not install equipment that appears to be damaged.
• 7750 SR-c12 systems equipped with DC-input power supplies should be installed in restricted
access areas, such as a dedicated equipment room or an equipment closet, in accordance with
Articles 110-16, 110-17, and 110-18 of the National Electric Code ANSI/ NFPA 70.
• This product complies with, and has been CE marked in accordance with, the European
Directives 89/336/EEC (EMC as amended by directive 93/68)
• Handles are not to be used for lifting equipment, only for extraction of electrical parts.
• Failure to comply with the equipment rack and chassis locating instructions as outlined in
"Chassis Location Requirements" on page 40 will cause thermal failure.
• You must disconnect the power from any power supply before removal.
• The 7750 SR-c12 uses a fiber-optic communications method and is a Class 1 laser product. Only
trained service personnel familiar with laser radiation hazards should install or remove fiber-
optic cables and cards in this system.
Notes:
• Prepare the equipment rack and site before installing the router. Plan the router placement near
the power sources and network interface connections.
• An empty 7750 SR-c12 chassis weighs approximately 36.2 lbs. (16.42 kg).
• A fully loaded 7750 SR-c12 chassis with the heaviest components/cards weighs approximately
100 lbs. (45.36 kg).
• For personal safety, use at least two people or a hand cart to install the router.
• Always install the heaviest equipment in the bottom of the rack to keep the center of gravity of
the equipment rack as low as possible.
• To provide necessary stability, ensure that the equipment rack is bolted to the floor. Ceiling
brackets are useful to provide additional stability.
• The equipment rack must be properly grounded.
• Install all components after the chassis is installed in a rack.
• Maintain a clearance of at least 20-inches (50.8 cm) at the front and back of the router.
• Maintain a clearance of at least 3-inches (7.6 cm) on each side to ensure adequate air intake and
exhaust. 9-inches (22.9 cm) is recommended. If mounting in a rack, ensure that the rack
complies with all requirements outlined in "Chassis Location Requirements" on page 40.
• The 7750 SR-c12 includes factory installed rack mounting brackets to mount in a 19-inch
equipment rack with a 5" (NEBS) recess. Alternate mid mount brackets are supplied in the
accessory kit.
System Specifications
Chassis Specifications
Parameter Description
Environmental Specifications
Parameter Description
MDA/MCM-XP Specifications
Parameter Description
Dimensions (combined) 1.9" H (48.26 mm) x 7.7" W (195.58 mm) x 11.5" D (292.1 mm)
Weight (combined) Range 3-5 lbs. (1.36 - 2.23 kg.)
CMA Specifications
Parameter Description
Dimensions 1.9" H (48.26 mm) x 3.85" W (96.52 mm) x 11.75" D (292.1 mm)
Weight 0.9 lbs.
Refer to the 7750 SR-c12 MDA, MCM-XP and CMA Installation Guides for more information on
these components.
AC PEM-3 1 2 Y
Air filter (factory installed) 1 1 Y
Fan tray (factory installed) 1 1 Y
CCM-XP 1 1 Y
MDAs 1 6 Y
CMAs 1 8 Y
MCM-XP 1 6 Y
CFM-XP 1 2 Y
1
AC Power cables are only shipped with the 7750 SR-c12 chassis if ordered. If power cords are
not ordered, you must supply them. DC power cables are not supplied. All power cables used on
the 7750 SR-c12 chassis must meet your local safety codes.
Installation Locations
Warning:
• Follow the equipment rack manufacturer’s instructions for proper rack installation. Failure to
comply with these requirements and the location requirements outlined in "Chassis Location
Requirements" on page 40 will impede proper airflow and will result in the system
overheating.
Airflow on the 7750 SR-c12 is defined as EC Class (S) SR-SL per GR3028. For proper thermal
performance, the following conditions must be met:
• The rack is made using channel or angle rack uprights that are at least 1.25” deep,
maximum 3” wide, and oriented away from the chassis such that no solid walls are located
immediately adjacent to the chassis side walls (see Figure 13).
Example: Telect 02008-02011 Series or Newton 0040140XXX Relay Racks.
• For seismic applications, the rack is a Telect Global Seismic Frame (GS series).
• The rack is 23” wide, provided the adapter brackets used do not violate the conditions
detailed in Figure 13.
• The rack must not be an unequal flange rack that has solid walls located immediately
adjacent to the chassis side walls. This will cause thermal failure.
Example: Telect 02033-02036 series.
• 7750 SR-c12 deployments in closed cabinets are not recommended. If closed cabinets
must be used, they must not restrict shelf airflow in any way. Furthermore, they must not
cause the shelf inlet bulk air temperatures to rise above those defined in GR-63 under
worst case environmental conditions, including any pre-heating of the cabinet air by other
equipment.
• The equipment rack rail mounting holes must align with the mounting holes on the chassis
mounting brackets. The 7750 SR-c12 mounting brackets are factory installed for a NEBS
mount in a 19-inch rack.
Required tools:
→ #2 Phillips screwdriver
→ Flathead screwdriver
→ Anti-static bags, mats, and packaging
→ ESD wrist strap
• A stable flat surface. Tabletop or shelves must be able to support the weight of one 7750
SR-c12 and attached cables.
Warning:
• Failure to comply with the location requirements outlined "Chassis Location Requirements"
on page 40 will impede proper airflow and will result in thermal failure.
Required tools:
→ Anti-static bags, mats, and packaging
→ ESD wrist strap
Allow at least 3-inch clearance (9-inches recommended) on the sides of the chassis for proper
airflow and at least 20-inches in the front and rear for installation and maintenance access. See
Figure 13.
• Ensure that the chassis is located in an area that can provide an average inlet air
temperature (bulk air temperature averaged over one year) no greater than 40°C under full
system power loading combined with worst case environmental deployment conditions
per GR 63.
• Ensure that the 7750 SR-c12 system intake is not located immediately adjacent to the
exhaust of another chassis such that preheated air above 40°C long term or 55°C short
term (per GR-63) is drawn into the system.
• Ensure that the 7750 SR-c12 system intake is not located immediately adjacent to the
intake of another chassis such that 7750 SR-c12 air flow is restricted in any way.
• Ensure that the inlet and exhaust of the chassis is free of obstructions from cabling,
mounting hardware, or other electronic equipment in the areas shown in Figure 13.
3 3
4 4
5 5
SR77019
Key Description
Warning:
• Failure to comply with the location requirements outlined in "Installation Locations" on page
38 and "Chassis Location Requirements" on page 40 will impede proper airflow and will
result in thermal failure.
Safety Considerations
Placement
Warning:
• Install the 7750 SR-c12 in recommended equipment racks or on a stable flat surface.
• Install in clean, dry, ventilated, and temperature-controlled rooms.
• Verify that the rack is properly bolted and braced and is properly grounded to a grounding
electrode.
• Install the chassis into the equipment rack before installing components.
Grounding
The router is suitable for installation as part of the Common Bonding Network (CBN) or an
Isolated Bonding Network (IBN).
The router is suitable for installation in Network Telecommunication Facilities or locations where
the NEC applies.
.
Cabling
Warning:
• To comply with the GR-1089-CORE, Issue 03, requirement R4-9 [31] standard for
electromagnetic compatibility and safety, all intra-building ports are specified for use with
shielded and grounded cables at both ends.
• The intra-building port(s) of the equipment or sub-assembly is suitable for connection to intra-
building or unexposed wiring or cabling only. The intra-building port(s) of the equipment or
sub-assembly must not be metallically connected to interfaces that connect to the Outside Plant
(OSP) or its wiring. These interfaces are designed for use as intra-building interfaces only
(Type 2 or Type 4 ports as described in GR-1089-CORE, Issue 4) and require isolation from the
exposed OSP cabling. The addition of primary protectors is not sufficient protection in order to
connect these interfaces metallically to OSP wiring.
• Bare conductors must be coated with an appropriate antioxidant compound before crimp
connections are made. All unplated connectors, braided strap, and bus bars must be brought to
a bright finish and then coated with an antioxidant before they are connected.
• The equipment under test (EUT) is specified for DC-I power configurations. The battery
returns must remain isolated until they reach the main power bus.
Power
Danger:
• Only electrical service personnel should perform wiring and cabling to the system.
• All power to the equipment rack or cabinet should be disconnected before the installation.
• Power cable(s) must meet your local electric code requirements.
• The power supply on/standby switch is not intended to be used as the chassis ON/OFF switch.
Unplug the power cord from the power source and disconnect the cord from the receptacle on
the power supply module to remove power.
• An external circuit breaker no greater than 50A must be located within a readily accessible
distance of the equipment. This is intended as the disconnect device.
DC Power Requirements
• A means of disconnect must be provided within 3 meters of the 7750 SR-c12.
• A maximum 50A circuit breaker, having a trip delay comparable with AIRPAX part no.
IELK-1REC4-52-35.0-01-B, must be provided. A 35A circuit breaker is recommended.
• A minimum #8 AWG power conductor must be provided for each of the DC PEM-3 input
connections.
• The length of the power cord must be at least 6 feet (1.8 m) and a maximum of 9.75 feet
(3.0 m).
• All power cords must be approved by an acceptable accredited agency responsible for
evaluation in the country where the power cord set is used.
• The power cord must have a minimum current capacity of 10A and a nominal voltage
rating of 220V or 240V AC, as required by each country’s power system.
• The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320
Standard Sheet C13 connector for mating with appliance inlet on the unit.
• The power cord set used with this 7750 SR-c12 must meet the local safety codes and
requirements.
Country-Specific Requirements
Australia EANSW 1
Austria OVE 1
Belgium CEBC 1
Canada CSA 2
Denmark DEMKO 1
Finland SETI 1
France UTE 1
Germany VDE 1
Italy IMQ 1
Japan JIS 3
Norway NEMKO 1
Sweden SEMKO 1
Switzerland SEV 1
United Kingdom BSI 1
United States UL 2
Notes:
1. The flexible cord must be a harmonized (HAR) Type HO5VV-F, 3-conductor cord with a
minimum 0.75 mm2 conductor size. The power cord fittings (the appliance coupler and wall
plug) must bear the certification mark of the agency responsible for evaluation in the country
where it is used.
2. The flexible cord must be min Type SVT or equivalent, No. 18 AWG, 3-conductor. The wall
plug must be a two-pole (3-pin) grounding type with a NEMA 6-15P (15A 250V)
configuration.
3. The appliance coupler, flexible cord, and wall plug must bear a “T” mark and registration
number in accordance with the Japanese Dentori Law. The flexible cord must be Type VCT or
VCTF, 3-conductor, 0.75 mm2 conductor size. The wall plug must be a two-pole grounding
type with a Japanese Industrial Standard C8303 (15A, 125V) configuration.
Fans
The 7750 SR-c12 supports a field-replaceable fan tray housing 10 fans. The tray as a single unit is
field replaceable; individual fans are not replaceable.
The 7750 SR-c12 cooling system requires a minimum of three inches of unrestricted, unobstructed
air flow to function properly. Nine inches are recommended.
Warning:
• Failure to comply with the location requirements outlined in "Installation Locations" on page
38 and "Chassis Location Requirements" on page 40 will impede proper airflow and will
result in thermal failure.
Slot covers are required to cover empty slots to prevent excess dust accumulation and to help
control airflow and electromagnetic interference. On the front of the chassis, use either one-, two-
or four-slot covers. On the rear of the chassis, CFM-XP and power supply slot covers are required.
Storage
To store uninstalled 7750 SR-c12 SRs and extra field-replaceable parts (if applicable), re-wrap the
components in the original packaging and keep them in a dry, dust-free temperature controlled
environment.
Parameter Description
Compliance Certifications
Type Publication
Safety UL 60950-1
CAN/CSA-C22.2 No. 60950-1-03, 3rd edition (2003)
CAN/CSA C22.2 No 0-M91 - General Requirements, Canadian electrical
Code, part II
CAN/CSA C22.2 No 0.4-04 - Bonding of Electrical Equipment
FDA CDRH 21-CFR 1040 4/96
CENELEC EN 60950-1:2001
IEC 60825-1 Ed. 1.0, 1.2
IEC 60825-2 Ed. 2.0
AS/NZA 60950-1:2003
EMC EN 300 386 V1.3.3 (2005-04)
GR-1089-CORE Issue 4, June 2006
FCC 47 CFR Part 15, Subpart 15 Class A
ICES-003 Issue 4 February 2004 Class A
RRL Notice No. 2007-69 (2007.09.28)
RRL Notice No. 2007-99 (2007.12.26)
EN 55022: 1998
AS/NZS CISPR 22 : 2002
EN 61000-3-3: 1995 + Amendment A1: 2001
EN 61000-3-2 : 2000
Certification NEBS
• GR-1089-CORE
• CR-63-CORE
• SBC-TP-76200
CE Declaration
Type Publication
IN THIS CHAPTER
This chapter introduces the Alcatel-Lucent 7750 SR-c12 Service Router® (SR) and provides an
overview of the following topics:
Mounting brackets for the 7750 SR-c12 chassis are installed to mount the unit in a recommended
19-inch wide rack. Adhesive-backed rubber footpads are included in the accessory kit to install the
router on a flat surface.
SR77023D
CCM-XP
The Chassis Control Module (CCM-XP) is located on the front of the 7750 SR-c12. The CCM-XP
accommodates up to six compact flash memory cards (three per CFM-XP) that can be used to copy
and store system boot images, software images, and configuration files and logs. The CCM-XP
provides the console and management interfaces to the 7750 SR-c12 as well as alarm information
for the CFM-XP and power supplies. See Figure 2 for more information on CCM-XP features,
functionality and LEDs. See Appendix A: Components and LEDs for detailed information.
SR77056C
SR77069
MCM-XP
Alcatel-Lucent’s MDA Carrier Modules (MCM-XP) are used in conjunction with MDAs. MDAs
are installed in MCM-XPs. Up to six MDA/MCM-XP modules can be installed in a 7750 SR-c12.
MCM-XPs are field replaceable by qualified personnel and can be installed independently in the
7750 SR-c12 or with an MDA installed. See "Installing a Combination MCM-XP/MDA" on page
89 for an illustration describing the MDA and MCM-XP connection. See Figure 1 for MCM-XP
locations on the front panel, and the included MCM Installation Guides for installation and LED
information.
SR77062
SR77070
Slot Covers
Slot covers (blank panels) are required in all empty card and component slots to prevent excess
dust accumulation and to help control airflow and electromagnetic interference, and for safety
reasons. Slot covers do not have board components or connector pins. Figure 1 illustrates a blank
panel covering MDA slot 5 (CMA slots 5 and 6). See Key reference 5.
SR77067A
• "CFM-XP" on page 23
• "Power System" on page 24
→ "DC Power Entry Modules" on page 25
→ "AC Power Entry Modules" on page 26
• "High Flow Fan Tray" on page 27
• "Air Filter" on page 29
Figure 7 displays the 7750 SR-c12 rear panel components. See Appendix A: Components and
LEDs for detailed information.
PEM
1
Fan Filter
7750SR_014
CFM-XP
The Control Forwarding Module (CFM-XP) controls the routing and switching functions for the
entire 7750 SR-c12 system. The 7750 SR-c12 operates with at least one CFM-XP installed. The
redundant CFM-XP operates in standby mode and takes over system operation if the primary fails.
CFM-XPs are field-replaceable.
The CFM-XP connects directly to the midplane and carries traffic between MDAs/CMAs. The
midplane provides high-speed access to the CFM-XP, MDAs, and CMAs. The switch fabric
portion of the CFM-XP receives and directs traffic to the appropriate destinations according to the
routing information.
7750SR_015
The 7750 SR-c12 is capable of a 1:1 redundancy scheme. Redundancy methods facilitate system
synchronization between the active and standby CFM-XPs so they maintain identical operational
parameters to prevent inconsistencies in the event of a CFM-XP failure.
When automatic system synchronization is enabled for an entity, any save or delete file operation
configured on the primary, secondary or tertiary locations on the active CFM-XP file system are
mirrored in the standby CFM-XP file system.
Although software configurations and images can be copied or downloaded from remote locations,
synchronization can only occur locally between compact flash drives (cf1:, cf2:, and cf3:).
Compact flash drives are located on the CCM-XP.
POWER SYSTEM
The 7750 SR-c12 chassis is designed to accommodate swappable, load-sharing power modules.
Redundancy is achieved when two PEM-3s of either type are installed. Each supply provides
1200W of power at +12V.
For redundancy, two PEM-3s must be cabled and powered on at all times.
AC power cables are only shipped with the 7750 SR-c12 chassis if ordered. If power cords are not
ordered, you must supply them. All power cables used on the 7750 SR-c12 chassis must meet your
local safety codes. DC power cables are not provided.
Always operate an energized chassis with the safety cover installed over the DC power terminal
blocks to prevent contact with hazardous voltages and currents and prevent accidental removal.
See Table 26 for a description of LEDs on the CCM, and sections "AC Alarm Indicators" on page
68 and "DC Alarm Indicators" on page 73 for PEM-3 LED descriptions.
DC Power Entry Modules (PEM-3s) (Figure 9) are easily installed and removed from the rear of
the 7750 SR-c12 chassis. DC modules are installed in power bays 1 and 2. One PEM-3 can support
the full system current requirements if you are operating the 7750 SR-c12 without power
redundancy. For redundancy, two PEM-3s must be installed and powered on at all times.
To prevent contact with hazardous voltages and currents and to prevent accidental removal, always
operate an energized chassis with the safety cover installed over the DC power terminal block.
When operating with only one PEM-3, ensure that the second PEM slot is covered with the
appropriate blank panel to ensure proper air flow through the chassis.
PEM-3s are packaged and shipped separately. See "Wiring and Connecting AC and DC Power" on
page 64 for requirements and information regarding preparing cables.
PEM-3s have no field replaceable parts. The entire unit must be replaced in the event of a failure.
Power must be disconnected from the 7750 SR-c12 before removing a PEM-3.
Power can be removed with the circuit breaker (ON/OFF) on each DC PEM-3.
SR77018
Two bays in the rear of the 7750 SR-c12 chassis are designated for swappable, load-sharing power
entry modules. One AC Power Entry Module (PEM-3) can support the full system current
requirements if you are operating the 7750 SR-c12 without power redundancy. For redundancy,
two PEM-3s must be installed and powered on at all times. When operating with only one PEM-3,
ensure that the second PEM slot is covered with the appropriate blank panel to ensure proper air
flow through the chassis.
AC power cables are only shipped with the 7750 SR-c12 chassis if ordered. If power cords are not
ordered, you must supply them. All power cables used on the 7750 SR-c12 chassis must meet your
local safety codes.
Power can be removed with the circuit breaker (ON/OFF) on each AC PEM-3.
AC PEM-3s have no field replaceable parts. The entire unit must be replaced in the event of a
failure.
SR77016A
The fans are not field replaceable; if there is a fault with one or more fans, the entire fan tray must
be replaced.
See Figure 40 on page 121 for the location of the Fan and Critical Alarm LEDs on the CCM. See
Table 26 on page 122 for descriptions of the Fan and Critical Alarm LEDs.
See Figure 41 on page 124 for the location of the Fan Status LED on the fan tray. See Table 27 on
page 125 for a description of the Fan Status LED. If the Fan Status LED is red, use the
show card 1 detail and show mda detail CLI commands to monitor the current temperature and
temperature threshold fields. If the temperature remains below the threshold, schedule
maintenance as soon as possible. If the temperature rises quickly and remains above the
temperature threshold 167° F (75° C), repair or replace the unit immediately.
Note: There are two temperature sensors per CFM-XP and CCM-XP and one temperature
sensor per MDA and CMA. The highest temperature from any sensor is reported as the
temperature for that slot. If the temperature exceeds a pre-set threshold of 154º F (68º C) for
any slot, then the CFM-XP will signal the fans to operate at full speed regardless of ambient
temperature. If the temperature reaches 167º F (75º C) an alarm (trap) is generated. If the
temperature exceeds a pre-set threshold of 154º F (68º C) for any slot, then the CFM-XP will
signal the fans to operate at full speed regardless of ambient temperature.
The cooling system components work together to keep the internal components within the
acceptable temperature range.
1 Captive screws
SR77057
The fan tray must always be installed and fully operational while the 7750 SR-c12 is powered up.
During routine maintenance and fan tray replacement, the system can operate safely for
approximately 10 minutes.
See "Fan Tray" on page 163 for the fan tray removal and replacement procedures.
AIR FILTER
FL IR
O
A
W
SR77024A
One air filter prevents large particles, debris, and dust from entering and circulating through the
system. Filters should be inspected monthly and replaced every three months or as required. Only
Alcatel-Lucent supplied air filters can be used. The filter is factory installed and is field
replaceable.
See "Air Filter" on page 166 for the air filter removal and replacement procedures.
IN THIS CHAPTER
This chapter provides information about installing a 7750 SR-c12 and information on the
following topics:
The Chassis Control Module (CCM), Media Dependent Adapters (MDA), MDA Carrier Modules
(MCM-XP), Compact Media Adapters (CMA and CMA-XP), Control Forwarding Modules
(CFM-XP), AC and DC power supplies, cables, fan tray and air filter are field-replaceable
components. See "Installing Rear Panel Components" on page 63 and "Installing Front Panel
Components" on page 81 for more information.
UNPACKING PRECAUTIONS
• The shipping weight of the chassis is approximately 43 lbs. (19 kg) without any
components installed. To prevent injury or damage to the router, two people should
remove the router from the shipping crate and mount it into a rack.
• The chassis is shipped in a heavy corrugated cardboard container protected by foam end
caps. Do not discard the packaging container and materials used in shipping. The packing
materials should be re-used if it is necessary to reship the router.
• Keep the chassis wrapped in the anti-static packaging until you are ready to install the
router.
• Keep the arrows on the shipping container pointing up.
5
6
1 2
SR77020A
1 Label
2 Label
3 Shipping container
4 Foam end caps
5 Anti-static bag
6 7750 SR-c12 router
Open the carton and follow these steps to unpack the chassis:
Caution: Lift the chassis by the bottom of the chassis. Do not put your hands inside a card slot or
use the handles on the power supplies or fan tray to lift.
Danger:
• Only trained and qualified personnel should install or replace this equipment.
Caution:
• Lift the router from underneath. Do not use the card slots or handles on the power supplies or fan
tray to lift the unit.
• When rack mounting the chassis in an equipment rack, do not stack other 7750 SR-c12 units or
any other equipment directly on top (where the bottom unit is supporting other devices). Each unit
must be secured into the rack with the appropriate mounting apparatus.
Warning:
• Failure to comply with the location requirements outlined in "Installation Locations" on page 38
and "Chassis Location Requirements" on page 40 will impede proper airflow and will result in
thermal failure.
The 7750 SR-c12 chassis is designed for NEBS and middle-mount installation into a 19-inch rack.
The rack mounting hardware (including rack bolts) is factory installed to NEBS mount (5-inch
setback) the chassis in a 19-inch rack.
It is easier to install the 7750 SR-c12 chassis in the rack with two people, one person to hold the
router and one person to secure it into the rack.
Required tools:
• The equipment rack is securely installed, anchored, and grounded. Refer to the rack
manufacturer’s documentation for instructions.
• The power to the rack is OFF.
3
4
SR77042C
Step 1 With one person in front of the rack and one behind the rack, lift the 7750 SR-c12 from
the bottom and position it in the rack.
Step 2 Align the mounting holes on each bracket to the rack rail.
Insert a screw into each hole in the mounting bracket and tighten.
Danger:
• Only trained and qualified personnel should install or replace this equipment.
Warning:
• Failure to comply with the location requirements outlined "Chassis Location Requirements" on
page 40 will impede proper airflow and will result in thermal failure.
Caution:
• Lift the router from underneath. Do not lift the router by the card slots or the handles on the power
supplies or fan tray.
• The router should be installed on an elevated flat surface, off the floor.
• The ventilation and maintenance clearance dimensions are the same for table-mounted units as
for rack-mounted units. See "Chassis Location Requirements" on page 40.
The 7750 SR-c12 chassis can be installed on a flat surface, such as a tabletop or shelf. Rubber
footpads are included in each accessory kit. It is optional to remove the factory installed rack
mounting brackets.
Before you begin, verify that ventilation and maintenance requirements are met.
SR77025C
Each bracket has a dimple and screw hole on one end to align with a corresponding notch and
mounting hole on the chassis. The top dimple is used to help keep the bracket oriented once the
bracket has been secured to the chassis via the bottom screw hole. On the other end of the bracket
are two tie-wrap holes. Use these holes to feed through a tie-wrap. Use the tie-wrap to hold the
cabling in place on the bracket.
Warning:
• Fiber cables are sensitive to bending, twisting and general over-exertion. Extreme caution is
recommended when handing fiber cable. See "Fiber Cables" on page 98 for more information on
laying fiber cables on the cable management brackets.
See "Ethernet and Copper Wire Cables" on page 96 for more information on wrapping Ethernet
and copper cables in the cable management brackets.
Mount the chassis in the equipment rack before installing the cable management trays.
SR77059
Step 1 Remove the cable management brackets and screws from the packaging.
Step 2 Identify the cable management bracket ends: One end has a screw hole and dimple to be
aligned with a corresponding hole and dimple on the 7750 SR-c12 chassis; the other end
features two holes to be used for tie-wrapping.
Step 3 Locate one of six cable management bracket hole-and-dimple pairs on the 7750 SR-c12
chassis front. Align the chassis bracket hole and dimple with the corresponding end of the
bracket.
Step 4 Insert a screw into the mounting hole of the bracket and tighten half-way. Verify that the
bracket dimple is nested properly in the chassis dimple. Insert a Phillips-head screwdriver
through the outer hole on the bracket to mate with the screw (see Figure 17). Torque the
screw to 8-10 lbf.in. Do not overtighten.
Step 5 Repeat Steps 3 and 4 for the remaining brackets.
Step 6 See "Configuring Parameters" on page 110 for information on how to wrap Ethernet,
copper and fiber cables in the cable management brackets.
1
SR10030
Note: When wiring the unit, the ground connection must always be made first and
disconnected last.
1 2
SR77026
Step 1 Run a single length of #8 (minimum) AWG wire from the building ground point to the
chassis ground studs.
Step 2 Crimp the 2-hole lug to the wire.
Step 3 Attach the lug to the two chassis ground studs; insert the two nuts and tighten to torque of
10-12 lbf-in. maximum.
Step 4 When routing the cable, ensure that a service loop is maintained at the attachment point
to the chassis to permit removal of the air filter and/or fan tray.
IN THIS CHAPTER
This chapter provides installation procedures for the 7750 SR-c12 rear panel components,
including the AC/DC power entry modules and wiring connections, fan tray, air filter, and CFM-
XP, with the following topics:
Danger:
• Make your ground connections first.
• Only a qualified personnel should install or replace this equipment.
• Confirm that the DC power source is OFF during installation. The power source should be a
safety extra-low voltage (SELV) source.
• Turn off power at the power source before you install or remove power cords.
• Before working on equipment that is connected to power, remove jewelry, such as rings,
necklaces, and watches. When metal objects are in contact with power and ground, serious burns
can occur or the objects can be welded to the terminals.
• You must use cables that meet local electrical code requirements.
• For DC powered systems, the unit should be connected to a DC branch circuit with a maximum
50A circuit breaker that meets the requirements for branch circuit protection. A suitable
disconnect device must be provided in the DC branch, either a circuit breaker or switch that can
be employed to disconnect power to the system during servicing.
Caution:
• This product relies on the building’s installation for short-circuit (over current) protection. For
AC powered systems, ensure that a circuit breaker, or other equivalent means, rated 20A, is used
in the building’s AC branch circuit for the current carrying conductors.
Warning:
• Do not install equipment that appears to be damaged.
• The router and equipment rack must be properly grounded. Electrostatic discharge (ESD)
damage can occur if components are mishandled. Always wear an ESD-preventive wrist or ankle
strap and always connect an ESD strap (with banana jack) to the ESD connection socket
(grounding plug) on the front or rear of the chassis.
• For DC powered systems, a readily accessible disconnect device to shut off power during
servicing must be incorporated in your building’s branch circuit.
Notes:
• The 7750 SR-c12 requires a minimum of one power connection to operate, but using both
connections are recommended for redundancy.
• A 20A (max.) circuit breaker is recommended for AC power. A 35A circuit breaker is
recommended for DC power. A circuit breaker with a medium trip delay (for example AIRPAX
part no. IELK1-1REC4-52-35.0-01-B) must be provided to ensure coordination with the over-
current protection device (Littelfuse part no. 324030) integrated in the DC PEM-3.
• In the event of a power module failure, the DC PEM or AC PEM must be replaced.
Danger:
• AC power cord set supplied with this product is strictly restricted for use with this product
only. The AC power cord set must not be used for any other purposes or any other products.
When applying power to the chassis, be sure to use the supplied AC power cord set, and make
sure that you do not use any other product's AC power cord set.
Japanese note:
Warning:
• For AC powered units, use only power cords that have a grounding (earthing) path. Main
grounding (earthing) connection points are through the IEC60320 appliance inlets. Grounding
(earthing) points on the rear of the equipment are for equipotential bonding only and are not the
safety grounding (earthing) points for the equipment. Lack of proper grounding (earthing) of
the equipment may result in a safety hazard and excessive electromagnetic emissions. See
Table 17 for descriptions of common grounding-type (earthing) power supply cords.
• If you ground the equipment by a method other than those provided in this manual, those
means should be in compliance with all local wiring regulations and practices.
If you intend to use AC-input power in the 7750 SR-c12, observe the following:
• In order to comply with the GR-1089 Lightning Criteria for Equipment Interfacing
With AC Power Ports, an external Surge Protective Device (Perma Power Model #
PXD309) is intended to be used at the AC input of the router.
The AC PEM-3S have an AC plug receptacle to accept an AC power cord. The other
end of the AC power cord must have a plug that fits into the power source receptacle
that is standard for your geographic region.
Note: In order to facilitate a fully redundant system you must connect both AC power entry
modules, one DC and one AC power entry module, or two DC power entry modules (see DC-
Input Power Supply Guidelines on page 69.) Wires can be routed to either side from the
terminal block on the DC PEM-3. The cover is reversible. See Wiring for DC-Input Power on
page 70 for more information.
CONNECTING AC POWER
PEM
1
2
Fan Filter
SR77027B
1 Power cord
2 Remote power source (example)
AC ALARM INDICATORS
Output
A green LED in the On state indicates that the +12V output is regulating within specification.
The LED is Off when the +12V output is not within specification.
Input
A green LED in the On state indicate that the AC input feed is present. The LED is Off when
the input feed is not present.
Danger:
• The 7750 SR-c12 can be powered by the external UL Listed, DC 48V output power supply
optionally provided with the system, outside of a restricted area. When powering with the
external power supply optionally provided with the product, the product and power supply
connection should be left such that the DC 48V is not accessible after installation, with wire
insulation stripped to proper lengths and the safety cover secured in place (Figure 21).
• 7750 SR-c12 systems equipped with DC-input power supplies should be installed in restricted
access areas, such as a dedicated equipment room or an equipment closet, in accordance with
Articles 110-16, 110-17, and 110-18 of the National Electric Code ANSI/ NFPA 70.
If you intend to use DC-input power in the 7750 SR-c12, observe the following:
• A fully redundant system operates with two power systems. AC and/or DC power types
are available in the 7750 SR-c12.
→ DC model — Wire both DC terminal blocks on the DC model.
• The unit is shipped with a safety cover installed on the DC terminal blocks. The safety
covers should always be installed during normal operation.
• DC power cords are not shipped with 7750 SR-c12s.
DC-input power connections require copper wire cables (see Figure 22).
• For DC power connections, a ground connection on the chassis is required. Copper wire
with green and yellow insulation must be used. Grounding cables are not provided.
Warning:
• Ensure that all power is OFF from the DC circuit. Locate the circuit breaker on the panel board
that services the DC circuit. Switch the circuit breaker to the OFF position. For extra safety, you
can tape the handle of the circuit breaker in the OFF position.
• When wiring the unit, the ground connection must always be made first and disconnected last.
• The proper wiring sequence is ground/negative to ground/negative and positive/return to positive/
return.
Use the following American wire gauge (AWG) specifications for power connections:
The DC power supply cables attach to the power supply terminal studs. Figure 21, Figure 22, and
Figure 23 display DC-input terminal block safety cover and wiring views.
SR77028A
SR77029
1 -VDC
2 RTN
SR77030A
Figure 23: DC-Input Power Terminal Block Wiring with Safety Cover
Note: In order to facilitate a fully redundant system you must connect both DC power entry
modules or one DC and one AC power entry module. Wires can be routed to either side from
the terminal block on the PEM-3. The cover is reversible.
DC ALARM INDICATORS
Output
A green LED in the On state indicates that the +12V output is regulating within specification. The
LED is Off when the +12V output is not within specification.
Input
A green LED in the On state indicate that the -48V input feed is present. The LED is Off when the
input feed is not present.
Warning:
• Always keep your fingers away from rotating blades.
Notes:
• The fan tray is hot-swappable. The 7750 SR-c12 chassis operates safely while you replace the
fan tray for up to 10 minutes. If a longer maintenance time is required, power off the system to
prevent over-temperature conditions.
• In the event of a single fan failure, the remaining fans will switch to their highest speeds. This
is sufficient to continue to provide adequate cooling for the system but the fan tray will need
to be replaced as soon as possible. The individual fans are not field replaceable.
• To remove and replace fan trays you must have access to the rear of the chassis. You must
have enough room, at least 20-inches, to install and/or pull the fan tray completely out of the
slot.
SR77053A
Step 1 Grip the replacement fan tray handle and slide the connector end into the slot until the
connectors seated with the midplane.
Step 2 With a Phillips screwdriver, secure the fan tray into place by tightening the captive
screws. Torque to 8-10 lbf.in. Do not over torque.
Step 3 Verify the LED on the fan tray. The LED is lit Green if functioning properly or Red if
there is a failure or the fan tray is not inserted properly.
Notes:
• The air filter is accessible from the rear of the chassis. Use a Phillips screwdriver to loosen the
captive fasteners on the air filter cover.
• The air filter should be inspected monthly and replaced every three months.
2
FL IR
O
A
W
SR77054B
Step 1 Slide the new filter into the filter slot, ensuring that it is properly oriented. Airflow is into
the chassis and the plastic pull tab should be visible.
Step 2 Bend the pull tab of the air filter outwards to assist with future removal of the filter.
Step 3 Fit the top slot of the filter cover onto the mating tab on the chassis and in a hinging
motion, insert the faceplate from top to bottom until it is flush with the chassis rear panel.
Step 4 Use a Phillips screwdriver to tighten the captive screws. Torque to 8-10 lbf.in. Do not over
torque.
CFM-XP Installation
Note: Each CFM-XP module has two ejector levers which seat and release the card from the
midplane connectors. During installation, the ejector levers must be positioned outward and
then rotated inward to lock into place. The ejector levers must remain in the locked position
while the card is installed in the chassis.
2 3
SR77047
Key Description
1 Slot guide
2 Ejector levers
3 Captive screws
INSTALLING A CFM-XP
To install a CFM-XP:
IN THIS CHAPTER
This chapter provides the following information about configuring and installing MDAs and ports,
using the cable management system, and initializing the system.
Installing Components
Danger:
• Only trained and qualified personnel should install or replace this equipment.
• Use of controls or adjustments of performance or procedures other than those specified herein
can result in hazardous radiation exposure.
Warning:
• Electrostatic discharge (ESD) damage can occur if MDAs are mishandled. Always wear an
ESD-preventive wrist or ankle strap and always connect an ESD strap to the grounding plug
on the front of the chassis.
• Invisible laser radiation can be emitted from the MDA/MCM-XP and CMA aperture ports
when no cable is connected. Avoid exposure and do not stare into open apertures.
• Always place components on an anti-static surface.
• Do not power up a 7750 SR-c12 router until all components are installed and verified.
• Use only approved small form factor pluggable fiber optic devices in MDA and CMA ports.
Notes:
General:
• Ports cannot be provisioned until the MCM-XP/MDA or CMA is provisioned.
• Services cannot be provisioned until the ports are configured.
INSTALLING A CCM-XP
The Chassis Control Module (CCM-XP) is located on the front panel of the 7750 SR-c12. The
CCM-XP accommodates up to six compact flash memory cards that can be used to copy and store
system boot, software images, and configuration files and logs. The CCM-XP provides the console
and management interfaces to the 7750 SR-c12 as well as alarm information for the CFM-XP and
power supplies.
3
SR77031B
Key Description
1 Slot guide
2 Threaded receptacle
3 Captive screws
To install an CCM-XP:
Step 4 Press the CCM-XP firmly into the slot. Make sure that the connectors are fully seated in
the receptacle.
Step 5 Tighten the captive screws to seat the CCM-XP with a calibrated torque screwdriver set
at 8-10 lbf.in. Do not over-tighten.
See "Appendix A: Components and LEDs" on page 119 for a description of the CCM-XP LEDs.
MCM-XPs span two CMA slots. For example, MDA slot 1 spans CMA slots 1 and 2. MCM-XPs
may not be installed across the center two CMA slots.
Captive screws secure the MCM-XP in place. Table 21 lists MCM-XP installation features on the
front panel.
1
2
SR77037B
Key Description
1 Slot guide
2 Threaded receptacle
3 Captive screws
The following procedure describes how to install an MCM-XP without an attached MDA.
Refer to the appropriate MDA Installation Guide or see "Installing an MDA (only)" on page 87 for
more information on installing MDAs.
To install an MCM-XP:
MDAs span two CMA slots. For example, MDA slot 1 spans CMA slots 1 and 2. MDAs may not
be installed across the center two CMA slots.
Captive screws secure the MDA in place. Table 21 lists MDA/MCM-XP installation features on
the front panel.
SR77071
Key Description
1 Slot guide
2 Threaded receptacle
3 Captive screws
To install an MDA:
Step 5 Press the MDA firmly into the MCM-XP housing. Make sure that the connectors are
fully seated in the MCM-XP receptacle. Tighten the captive screws to seat the MDA
with a calibrated torque screwdriver set at 8-10 lbf.in. Do not over-tighten.
Step 6 Follow the direction for inserting an MCM-XP into the 7750 SR-c12. See "Installing an
MCM-XP (only)" on page 85.
Step 7 Check the Power LED.
Step 8 Attach cables to the MDA ports.
Each MDA has a Power and Status LED. For a description of the LEDs for each MDA model, see
Appendix A: Components and LEDs.
Combining an MCM-XP/MDA
SR77039
See the "Installing an MCM-XP (only)" on page 85 and "Installing an MDA (only)" on page 87 for
details on separately installing the MCM-XP or MDA components in the 7750 SR-c12.
Installing an MCM-XP/MDA
MCM-XPs may be installed on in the 7750 SR-c12 before or after the MDA is installed on the
MCM-XP.
The following procedure describes how to install an MCM-XP with an attached MDA.
See the appropriate MDA Installation Guide for more information on installing MDAs.
SR77033A
INSTALLING A CMA
A maximum of eight CMAs can be installed in any of the 12 CMA slots on the 7750 SR-c12
(Figure 32). CMA slots are numbered from left to right. Captive screws secure the CMA in place.
Table 23 lists CMA installation features on the front panel.
2
SR77034A
Key Description
1 Slot guide
2 Captive screws
To install a CMA:
Step 3 Press the CMA firmly into the slot. Make sure that the connectors are fully seated in the
receptacle. Tighten the captive screws to seat the CMA with a calibrated torque
screwdriver set at 8-10 lbf.in. Do not over-tighten.
Step 4 Check the Power LED.
Step 5 Attach cables to the CMA ports.
Each CMA has a Power and Status LED. For a description of the LEDs for each CMA model, see
"Appendix A: Components and LEDs" on page 119.
Danger:
• Only trained and qualified personnel should install or replace this equipment.
• Use of controls or adjustments of performance or procedures other than those specified herein
can result in hazardous radiation exposure.
Warning:
• Electrostatic discharge (ESD) damage can occur if MDAs are mishandled. Always wear an
ESD-preventive wrist or ankle strap and always connect an ESD strap to the grounding plug
on the front of the chassis.
• Invisible laser radiation can be emitted from the MDA/MCM-XP and CMA aperture ports
when no cable is connected. Avoid exposure and do not stare into open apertures.
• Do not power up a 7750 SR-c12 until all components are installed and verified.
• Use only approved small form factor pluggable fiber optic devices in MDA and CMA ports.
Notes:
General:
• Ports cannot be provisioned until the MCM-XP/MDA or CMA is provisioned.
• Services cannot be provisioned until the ports are configured.
SR77060A
FIBER CABLES
Warning:
• Fiber cables are sensitive to bending, twisting and general over-exertion. Extreme caution is
recommended when handing fiber cable.
SR77061A
Notes:
• The front of the cable management bracket represents the maximum allowable protrusion to
comply with a 600mm chassis depth. For deployments where this is a requirement, ensure that
all cabling is kept inside the bracket.
• In order to ensure that the minimum fiber bend radius of 0.75” is maintained within the
allowable space, an open angled 90° boot such as TYCO 1374737-x or equivalent is
recommended. These boots must be installed and oriented during fiber termination. See
Figure 34.
IN THIS CHAPTER
This chapter provides the following information about installing compact flash cards, powering up
the 7750 SR-c12, establishing initial router connections, and getting started with basic card and
port configuration commands.
Notes:
• The CCM module contains three slots per CFM-XP for removable compact flash cards.
The drives are named Compact Flash Slot #1 (cf1), Compact Flash Slot #2 (cf2), and
Compact Flash Slot #3 (cf3). Configurations and executable images can be stored on
flash cards or an FTP file location.
• The flash card containing the bootstrap and boot option files must be installed in
Compact Flash Slot #3 (cf3) on the front panel.
• You must have a console connection. See "Console Connection" on page 106.
Install the compact flash cards included in your packaging in the cf1, cf2 and/or cf3 slots as
appropriate.
Note: Compact Flash #3 slot has a slot locking mechanism (see Figure 35) to prevent
accidental jostling or removal of the flash card.
2 1
Figure 35: Compact Flash Slot #3 on the 7750 SR-c12 Front Panel
To secure a compact flash card into slot #3, follow these steps:
POWER
For AC-powered systems:
Step 1 Turn ON the AC PEM-3 and switch. The Status LEDs on the front of the AC PEM-3
should be lit green.
Step 2 Check the PEM-3 1 or 2 LED on the 7750 SR-c12 front panel. It should be lit green.
FAN STATUS
For Fan Status LED identification and activity, see Figure 40.
CCM
The Compact Flash 3 LED as they system searches for the boot.ldr file (also known as the
bootstrap file).
For other CCM LED identification and activity, see Appendix A: Components and LEDs.
CFM-XP
For CFM-XP LED identification and activity, see Appendix A: Components and LEDs.
Notes: At a minimum, the CFM-XP requires the CCM, compact flash cards, and console
connectivity before it can boot properly. See "Compact Flash Cards" on page 102 and
"Console Connection" on page 106 for more information.
MDA/CMA
For MDA and CMA LED identification and activity, refer to your appropriate MDA or CMA
Installation Guides for more information.
CONSOLE CONNECTION
SR77045A
Step 1 Connect the terminal to the DTE Console port on the front panel (Figure 36) using the
serial cable.
Step 2 Power on the terminal.
Step 3 Establish the connection by pressing the <Enter> key a few times on your terminal
keyboard.
Step 4 At the router prompt, enter the login and password.
The default login is admin.
The default password is admin.
TELNET CONNECTION
Warning:
• All plugs must be properly crimped and conform to FCC Code of Regulations (CFR) Part 68,
Subpart F. Failure to comply might result in damage to the connector.
Access the router after a successful initialization with a Telnet connection from a PC or
workstation connected to the network after the management port (see Figure 37) has been
configured using the bof>address command (see below). Telnet access provides the same
options for user and administrator access as those available through the console port.
To configure the 7750 SR-c12 for Telnet access, you need to have a device with Telnet software
located on the same network. The 7750 SR-c12 must have a management IP address. The IP
address is manually configured. Each 7750 SR-c12 is limited to a total of seven inbound/outbound
Telnet or SSH sessions to guarantee that either inbound or outbound sessions will be available. For
information about configuring router parameters, see the IP Router Configuration Overview
chapter. For pinout information, see "Appendix C: Pinout Assignments" on page 169.
MAC addresses are listed on a small label on the chassis and on the MDAs. The MAC address also
displays in the show router arp command output.
Data
Data
The 7750 SR-c12 must have a management IP address. The IP address is manually configured.
Note: The Telnet server must be enabled. Enter configure system security telnet-server.
Running Telnet
Once the IP parameters are configured, the CLI command line can be accessed with a Telnet
connection. To establish a Telnet connection, run a Telnet program and issue the Telnet command,
followed by the IP address:
C:\>telnet 192.168.1.111
Login: admin
Password: ########
ALA-1#
Step 1 The shutdown command MUST be issued prior to removing a flash card.
Command Example
file shutdown cflash-id ALA-1# file shutdown cf3:
Step 2 Loosen the compact flash slot locking screw.
Step 3 Lift the slot cover.
Step 4 The ejector button for Compact Flash Slot #3 is slightly recessed. Insert a small object
such as a pen tip to depress the button. The card will partially pop out of the slot.
Step 5 Remove the card and place it in an anti-static bag.
The flash card containing the boot and configuration files must be installed in Compact
Flash Slot #3 (cf3:) on the CCM card.
Step 6 Lower the slot cover and tighten the locking screw.
Step 1 The shutdown command MUST be issued to prior to removing a flash card.
Command Example
file>shutdown cflash-id ALA-1# file shutdown cf1:
file>shutdown cflash-id ALA-1# file shutdown cf2:
Step 2 Press the ejector button on compact flash slot #1 or compact flash slot #2. The card will
partially pop out of the slot.
Step 3 Remove the card and place it in an anti-static bag.
Configuring Parameters
After the 7750 SR-c12 is initialized, the MCM-XP, MDA, CMA and port parameters can be
configured. Even though the IOM is an integral part of the unit and is physically represented with
the CFM-XP, the slot and card type must be manually specified. IOM and CFM-XP results will
display.
CARD COMMANDS
Note: When configuring the chassis slot (Step 1), the slot number value is always 1 for 7750
SR-c12 models.
In the config>card context, use the following CLI commands and syntax examples to provision
the chassis slot and IOM:
Command Example
Step 1 card slot-number card 1
Step 2 card-type card-type card-type iom-12g
Step 3 no shutdown no shutdown
After the card is configured, use the following CLI commands to provision your MCM-XPs and
MDAs. An MDA cannot be configured before its associated MCM-XP is configured. A maximum
of six MCM-XPs and MDAs can be configured on a 7750 SR-c12. Refer to the appropriate MDA
Installation Guide for MDA installation information.
Notes: MCM-XPs are valid in odd-numbered slots only, for example MCM 1 or MCM 3. MCM
1 spans slots 1 and 2, MCM 3 spans slots 3 and 4, and so on. Even numbered slots such as
MCM 2 or MCM 4 are invalid card types.
Command Example
Step 1 card slot-number card 1
Step 2 mcm mcm-number mcm 1
Step 3 mcm-type mdm-type mcm-v1
Step 4 mda mda-number mda 1
Step 5 mda-type mda-type mda-type m60-10/100eth-tx
Step 6 no shutdown no shutdown
Step 7 exit exit
Example Configuration
The following example displays the card slot, card type, MCM-XP slot, MCM-XP type, MDA
slot, and MDA type command usage:
A:7710-3>config# card 1
A:7710-3>config>card# card-type iom-12g
A:7710-3>config>card# mcm 1
A:7710-3>config>card>mcm# mcm-type mcm-v1
A:7710-3>config>card>mcm# exit
A:7710-3>config>card# mcm 3
A:7710-3>config>card>mcm# mcm-type mcm-v1
A:7710-3>config>card>mcm# exit
A:7710-3>config>card# mda 1
A:7710-3>config>card>mda# mda-type m60-10/100eth-tx
A:7710-3>config>card>mda# exit
A:7710-3>config>card# mda 3
A:7710-3>config>card>mda# mda-type m60-10/100eth-tx
A:7710-3>config>card>mda# exit
A:7710-3>config>card# exit
CMA COMMANDS
After the IOM is configured, use the following CLI commands to provision the CMAs. A
maximum of eight CMAs can be configured on a single 7750 SR-c12.
Notes: Compact Media Adapters (CMAs and CMAs) are configured using MDA commands.
Use the configure mda command to configure both CMAs and MDAs. Use the show card
state command to display all cards on the 7750 SR-c12. CMAs display a “c” with the card
name; MDAs display an “m.”
Command Example
Step 1 card slot-number card 1
Step 2 mda mda-number mda 5
Step 3 mda-type mda-type mda-type c8-10/100eth-tx
Step 4 exit exit
EXAMPLE
The following example displays card slot, card type, CMA slot, and MDA type command usage:
A:7710-3>config# card 1
A:7710-3>config>card# mda 5
A:7710-3>config>card>mda# mda-type c8-10/100eth-tx
A:7710-3>config>card>mda# exit
A:7710-3>config>card# mda 6
A:7710-3>config>card>mda# mda-type c8-10/100eth-tx
A:7710-3>config>card>mda# no shutdown
A:7710-3>config>card>mda# exit
The following example shows a 7750 SR-c12 in the default DC power supply mode and the syntax
to change to AC mode:
A: 7750# show chassis power-supply
===============================================================================
Chassis Information
===============================================================================
Power Supply Information
Number of power supplies : 2
When the system finds the boot.ldr file, the system processes the initialization parameters from
the BOF. The BOF should be on the same drive as the boot loader file. If the BOF cannot be found
or loaded, then the system prompts for a different image and configuration location.
When the image is successfully loaded, control is passed from the boot loader file to the image.
The runtime image attempts to locate the configuration file as configured in the BOF. The
configuration file include chassis, IOM/CFM-XP, MDA, CMA and port configurations, as well as
system, routing, and service configurations.
The following example displays the output when either no flash is present or the boot.ldr file
cannot be found.
...
Alcatel 7xxx Boot ROM. Copyright 2000-2009 Alcatel-Lucent.
All rights reserved. All use is subject to applicable license agreements.
Build: X-5.0.B1-6 on Wed Jan 24 18:10:27 PST 2009 by builder
Version: 0x1B
Starting 7750 CFM A
COLD boot on processor #1
CPU Control FPGA version is 0x29
?Preparing for jump to RAM...
Starting bootrom RAM code...
Boot rom version is v27
Booted from Control PROM 1
>>>Testing mainboard FPGA chain...
>>>Validating SDRAM from 0x7ff00000 to 0x80000000
>>>Testing SDRAM from 0x02200000 to 0x7ff00000
>>>Testing Compact Flash 1... Slot Empty
>>>Testing Compact Flash 2... Slot Empty
>>>Testing Compact Flash 3... Slot Empty
CFMCTL FPGA version is 0x29
CCM FPGA version is 0x99
Board Serial Number is 'UNIT 1505'
Chassis Serial Number is 'A6060900047'
Searching for boot.ldr on local drives:
No disk in cf3
No disk in cf3
No disk in cf3
Error - file boot.ldr not found on any drive
Please insert CF containing boot.ldr. Rebooting in 5 seconds.
Rebooting...
Figure 38 displays the compact flash directory structure and file names.
ROOT
both.tim
In This Chapter
This section describes the 7750 SR-c12 chassis front and rear panel components and LEDs with
the following topics:
1 7
2
3
8
4
5
SR77023C
Table 25 displays the 7750 SR-c12 front panel and LED descriptions
Key Description
1 CCM
2 ESD plug
3 MDA installed
4 MCM installed
5 Blank panel
6 CMA installed
7 Rack mounting bracket
8 Cable Management bracket
CCM-XP
The Chassis Control Module (CCM-XP) is located on the front of the 7750 SR-c12. The CCM-XP
accommodates up to six compact flash memory cards (three per CFM-XP) that can be used to copy
and store system boot images, software images, and configuration files and logs. The CCM-XP
provides the console and management interfaces to the 7750 SR-c12 as well as alarm information
for the CFM-XP and power supplies. See Figure 40 for more information on CCM-XP features,
functionality and LEDs. See Table 26 for key descriptions.
1 2 3 6 7 9 11 12 13 14
4 5 8 10
PEM
1
3 7
Fan Filter
5
7750SR_016
IN THIS CHAPTER
This chapter provides information about field replaceable units (FRUs) in the 7750 SR-c12
chassis.
Warning:
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap to the
grounding plug on the front of the chassis.
• Power entry modules are hot insertable. Always disconnect power from the power entry
module before removing from chassis.
CCM
Warning:
• Do not remove a CCM if a compact flash LED is lit green. If flashing green/amber, a read/
write action is in progress.
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap connected to the grounding plug on the
front of the chassis. Always place router components on an anti-static surface.
• Blank panels and faceplates are required in all empty card and component slots to prevent
excess dust accumulation and to help control airflow and electromagnetic interference.
Notes:
General:
• When replacing CCM modules, configuration modifications are required.
• All 7750 SR-c12s require a CCM-XP.
• Do not force any other components into a CCM-XP slot.
• If you are not immediately installing a replacement CCM-XP module, power off the system
until the CCM-XP module is replaced.
Command Example
Step 1 show chassis show chassis
Step 2 file shutdown active file shutdown active
Step 3 file shutdown standby file shutdown standby
Step 4 configure config
Step 5 system ccm <ccm-slot> system ccm 1
Hardware Data
Part number : 3HE04580AA
CLEI code : IPUCAEPFAA
Serial number : NS062551297
Manufacture date : 07112006
Manufacturing string :
Manufacturing deviations :
Administrative state : up
Operational state : up
Temperature : 26C
Temperature threshold : 75C
Time of last boot : N/A
Current alarm state : alarm cleared
===============================================================================
A:SR29#
Removing a CCM-XP
1
7750SR_004
To remove a CCM-XP:
Step 1 If applicable, shut down and remove all compact flash cards from their slots. The compact
flash LEDs must be either unlit or yellow before ejecting the flash card. See "Ejecting
Flash Cards" on page 108 for information on shutting down and removing flash cards.
Step 1 Loosen the captive screws.
Step 2 Grasp the screws and pull the CCM-XP out of the slot.
NOTE: The CCM-XP cannot be removed if the captive screws are tightened.
Step 3 Place the CCM-XP on an anti-static surface.
Hardware Data
Part number : 3HE04580AA
CLEI code : IPUCAEPFAA
Serial number : NS062551297
Manufacture date : 07112006
Manufacturing string :
Manufacturing deviations :
Administrative state : up
Operational state : up
Temperature : 26C
Temperature threshold : 75C
Time of last boot : N/A
Current alarm state : alarm cleared
===============================================================================
A:SR29# file shutdown active
A:SR29# file shutdown standby
A:SR29# configure
A:SR29>config# system ccm 1
A:SR29>config>system>ccm# shutdown
A:SR29>config>system>ccm# exit all
A:SR29# show chassis ccm
===============================================================================
Chassis Information
===============================================================================
Chassis Control Module (CCM) Information
CCM number : 1
Equipped : yes
Type : ccm-c12-v1
Hardware Data
Part number : 3HE01019AAAA01
CLEI code : IPUCAEPFAA
Serial number : NS062551297
Manufacture date : 07112006
Manufacturing string :
Manufacturing deviations :
Administrative state : down
Operational state : down
Temperature : 26C
Temperature threshold : 75C
Time of last boot : N/A
Current alarm state : alarm cleared
===============================================================================
A:SR29#
Replacing a CCM-XP
3
7750SR_005
CCM-XPs must be replaced immediately after removing. If you are not immediately installing a
replacement CCM-XP module, power off the system until the CCM-XP module is replaced.
Step 1 Remove CCM-XP from the packaging and place on a flat anti-static work surface. Avoid
touching board components and connector pins. Align the CCM-XP with the slot guides.
Step 2 Press the CCM-XP firmly into the slot. Make sure that the connectors are fully seated in
the receptacle.
Step 3 Tighten the captive screws in the lower corners of the CCM-XP to the chassis. Do not
over-tighten. The recommended torque is 8-10 lbf.in.
MCM-XPs
Warning:
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap to the
grounding plug on the front of the chassis.
• Always place components on an anti-static surface.
• Do not power up a 7750 SR-c12 until all components are installed and verified.
Notes:
General:
• MCM-XPs are hot-swappable if installing an MCM-XP of the same version. If replacing an
MCM-XP with a different version, the associated MDA and ports must first be de-
configured.
• Ports cannot be provisioned if the MDA is not preprovisioned.
• Services cannot be provisioned if ports are not provisioned.
• MCM-XPs can be installed in a 7750 SR-c12 in two ways:
→ Attach an MDA to the MCM-XP and then load the combined unit into the chassis slot.
→ Install MDAs on to the MCM-XP after the MCM-XP is loaded in the chassis slot.
Step 1 Loosen the MCM-XP captive screws. Grasp the handle and pull the MCM-XP out of the
slot.
NOTE: The MCM-XP cannot be removed if the captive screws are tightened.
Step 2 Place the MCM-XP on an anti-static surface.
Step 3 You must either immediately install another MCM-XP into the slot or replace the MCM-
XP slot with blank cover.
7750SR_006
MCM-XPs may be installed on in the 7750 SR-c12 before or after the MDA is installed on the
MCM-XP.
The following procedure describes how to install an MCM-XP without an attached MDA.
Refer to the appropriate MDA Installation Guide for more information on installing MDAs.
7750SR_007
Step 1 Remove MCM-XP from the packaging and place on a flat anti-static work surface.
Avoid touching board components and connector pins.
Step 2 Insert the MCM-XP into MCM-XP slot in the 7750 SR-c12. Align the MCM-XP with
the slot guides.
Step 3 Press the MCM-XP firmly into the slot. Make sure that the connectors are fully seated in
the receptacle.
Step 4 Tighten the captive screws in the lower corners of the MCM-XP to the chassis. Do not
over-tighten. The recommended torque is 8-10 lbf.in.
Step 5 Refer to the appropriate MDA Installation Guide for procedures on installing an MDA
on an MCM-XP.
Step 6 Tighten the captive screws in the lower corners of the MCM-XP to the chassis. Do not
over-tighten. The recommended torque is 8-10 lbf.in.
MDAs
Warning:
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap to the
grounding plug on the front of the chassis.
• Invisible laser radiation can be emitted from the aperture ports of an MDA when no cable is
connected. Avoid exposure and do not stare into open apertures.
• Always place components on an anti-static surface.
• Do not power up a 7750 SR-c12 until all components are installed and verified.
• Use only approved small form factor pluggable fiber optic devices in MDA ports.
Notes:
General:
• MDAs cannot be provisioned if the MCM-XP is not preprovisioned.
• Ports cannot be provisioned if the MDA is not preprovisioned.
• Services cannot be provisioned if ports are not provisioned.
• MDA slots are numbered 1, 3, 5, 7, 9 and 11.
Issue the following commands in the config context to shut down ports and remove the MDA
from the configuration:
Command Example
Step 1 port port-id* port 1/1/1
Step 2 shutdown shutdown
NOTE: The port> shutdown command must be entered for all enabled ports on the MDA.
7750SR_008
Step 6 Tighten the captive screws to secure the MDA. Do not over-tighten. The recommended
torque is 8-10 lbf.in.
Refer to the MCM Installation Guide for more information on installing MCM-XPs.
7750SR_009
Step 1 Remove MDA from the packaging. Avoid touching board components and connector pins.
Step 2 Locate the appropriate MCM-XP slot.
Step 3 Insert the MDA into the MDA slot on the MCM-XP. Align the MDA with the slot guides
and the captive screw with the threaded receptacle.
Step 4 Press the MDA firmly into the slot. Make sure that the connectors are fully seated in the
MCM-XP receptacle. The faceplate of the MDA should be flush with the chassis.
Step 5 Tighten the captive screws to secure the MDA. Do not over-tighten. The recommended
torque is 8-10 lbf.in.
Step 6 If the system is powered up, check the Power LED on the MDA faceplate.
Step 7 Attach cables to the MDA ports.
Combination MCM-XP/MDA
Warning:
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap to the
grounding plug on the front of the chassis.
• Always place components on an anti-static surface.
• Do not power up a 7750 SR-c12 until all components are installed and verified.
Notes:
General:
• MCM-XPs are hot-swappable.
• MDAs are hot-swappable
• MDAs cannot be provisioned if the MCM-XP is not preprovisioned.
• Ports cannot be provisioned if the MDA is not preprovisioned.
• Services cannot be provisioned if ports are not provisioned.
• This procedure describes how to install a combination MCM-XP/MDA into the chassis.
• MCM-XP/MDA slots are numbered 1, 3, 5, 7, 9 and 11.
Issue the following commands in the config context to shut down the MCM-XP:
Command Example
Step 1 config card slot-number configure card 1
Step 2 mcm mcm-slot mcm 1
Step 3 shutdown shutdown
Step 4 exit exit
Sample Output
A:7750-3>config# card 1
A:7750-3>config>card# mcm 1
A:7750-3>config>card>mcm# shutdown
Issue the following commands in the config context to shut down ports and remove the MDA
from the configuration:
Command Example
Step 1 port port-id* port 1/1/1
Step 2 shutdown shutdown
NOTE: The port> shutdown command must be entered for all enabled ports on the MDA.
7750SR_010
Combining an MCM-XP/MDA
SR77039A
Step 1 Remove MDA from the packaging and place on a flat anti-static work surface. Avoid
touching board components and connector pins. Insert the MDA into the MDA slot on the
MCM-XP.
Step 2 Align the MDA with the slot guides and the captive screw with the threaded receptacle.
Step 3 Press the MDA firmly into the slot. Make sure that the connectors are fully seated in the
MCM-XP receptacle. The faceplate of the MDA should be flush with the MCM-XP
faceplate.
Step 4 Tighten the captive screws to secure the MDA. Do not over-tighten. The recommended
torque is 8-10 lbf.in.
Step 5 Refer to the MCM Installation Guide for procedures on installing the MCM-XP. Once the
MCM-XP is installed, continue to the next step.
Step 6 If the system is powered up, check the Power LED on the MDA faceplate.
Step 7 Attach cables to the MDA ports.
See the "MCM-XPs" on page 135 and "MDAs" on page 139 for details on separately installing the
MCM-XP or MDA components in the 7750 SR-c12.
7750SR_011
To install MCM-XPs after the MDA has been installed on the MCM-XP:
Remove MCM-XP from the packaging. Avoid touching board components and connector pins.
Refer to the appropriate MDA Installation Guide for more information on installing and MDA on
an MCM-XP.
Step 1 Locate the appropriate MCM-XP slot on 7750 SR-c12.
Step 2 Insert the MCM-XP into the MCM-XP slot. Align the MCM-XP with the slot guides.
Press the MCM-XP firmly into the slot. Make sure that the connectors are fully seated in
the receptacle. The faceplate of the MDA should be flush with the 7750 SR-c12.
CMAs
Warning:
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap and always connect an ESD strap to the
grounding plug on the front of the chassis.
• Invisible laser radiation can be emitted from the aperture ports of an CMA when no cable is
connected. Avoid exposure and do not stare into open apertures.
• Always place components on an anti-static surface.
• Do not power up a 7750 SR-c12 until all components are installed and verified.
• Use only approved small form factor pleadable devices in CMA ports.
Notes:
General:
• Ports cannot be provisioned if the CMA is not preprovisioned.
• Services cannot be provisioned if ports are not provisioned.
• A maximum of eight CMAs (in any of the 12 slots) are supported in a 7750 SR-c12.
Issue the following commands in the config context to shut down ports and remove the CMA
from the configuration:
Command Example
Step 1 port port-id* port 1/5/1
Step 2 shutdown shutdown
Note: The port> shutdown command must be entered for all enabled ports on the CMA.
Removing a CMA
To remove a CMA:
7750SR_012
Replacing a CMA
A maximum of eight CMAs can be installed in a 7750 SR-c12. CMA slots are numbered from left
to right (the left CMA slots are 1, 5 and 9, the right CMA slots are 4, 8 and 12). Captive screws
secure the CMA in place.
To replace a CMA:
Step 1 Remove the CMA from the packaging and place on a flat anti-static work surface. Avoid
touching board components and connector pins. Insert the CMA into the appropriate slot.
Align the CMA with the slot guides and the captive screw with the threaded receptacle.
Press the CMA firmly into the slot. Make sure that the connectors are fully seated.
Step 2 Tighten the captive screws to seat the CMA with a calibrated torque screwdriver set at 8-
10 lbf.in. Do not over-tighten.
Step 3 Check the Power LED.
Step 4 Attach cables to the CMA ports.
Each CMA has a Power and Status LED. For a description of the LEDs for each CMA model, see
"Appendix A: Components and LEDs" on page 119.
CFM-XPs
Warning:
• Do not remove a CFM-XP if a compact flash LED is lit green. If green/amber, a read/write
action is in progress.
• Electrostatic discharge (ESD) damage can occur if 7750 SR-c12 components are mishandled.
Always wear an ESD-preventive wrist or ankle strap connected to the grounding plug on the
front of the chassis. Always place router components on an anti-static surface.
• Blank panels and faceplates are required in all empty card and component slots to prevent
excess dust accumulation and to help control airflow and electromagnetic interference.
Notes:
General:
• When replacing CFM-XP modules, configuration modifications are not required.
• All 7750 SR-c12s require at least one CFM-XP.
• Do not force any other component into a CFM-XP slot.
• When you remove a CFM-XP, always use the ejector levers to make sure that the connector
pins disconnect from the midplane.
Removing a CFM-XP
SR77044
To remove a CFM-XP:
Step 1 Loosen the captive screws that fasten the CFM-XP to the chassis or the screws that fasten
a blank panel to the chassis.
Step 2 Simultaneously, rotate the ejector levers outward to unlock the panel. (Blank panels do
not have midplane connectors.)
Step 3 Pull the blank or the CFM-XP out of the slot. Do not discard. Retain for future use.
Replacing a CFM-XP
Notes: Each CFM-XP module has two ejector levers which seat and release the card from the
midplane connectors. During installation, the ejector levers must be positioned outward and then
rotated inward to lock into place. The ejector levers must remain in the locked position while the
card is installed in the chassis.
2 3
To replace a CFM-XP:
Step 1 Remove the new CFM-XP module from the packaging. Do not touch the printed circuit
board or connector pins. The CFM-XP maybe installed in either Slot A or B. Hold the
CFM-XP by the edges, align the card with the slot guide and slide inward until the
connectors are seated in the back and the faceplate is flush with the front of the chassis.
Step 2 Rotate the ejector levers simultaneously inward to lock the midplane connectors and
CFM-XP in place.
If an ejector lever does not shift to the locked position, the card is probably not seated
properly in the midplane. Pull the card out and then reinsert it. Shift the levers to the
locked position.
Step 3 Secure the card in place by tightening the captive screws. Torque to 8-10 lbf.in. Do not
over tighten.
Danger:
• Make your ground connections first.
• Only a qualified electrician should connect power cables.
• External power must be disconnected at the power source and disconnect and unplug the power
cables before you remove and replace a power entry module.
• You must use power cables which meet local electrical code requirements.
Warning:
• Do not install equipment that appears to be damaged.
• Blank panels and faceplates are required in all empty card and component slots to prevent
excess dust accumulation and to help control airflow and electromagnetic interference.
Faceplate blanks do not have board components or connector pins.
Notes:
• The 7750 SR-c12 requires a minimum of one power module to operate, but two are
recommended for redundancy.
• For full redundancy, each power entry module should be attached to an independent power
source with a dedicated circuit breaker. A fully redundant system must be connected to either
both DC power entry modules, both AC power entry modules, or one DC and one AC power
entry module.
• In the event of a power entry module failure, the entire power entry module must be replaced.
There are no field serviceable parts inside the power entry module.
SR77048
If you are operating your 7750 SR-c12 with redundant power entry modules, you can install,
remove, or replace a power entry module without affecting system operation. For assured safety,
unplug the power cable from the remote source during the power entry module replacement.
SR77049
For added safety, before installing the power entry module replacement, verify that the power
switch for the new power entry module is OFF.
Step 1 Align the module with the guides in power entry module bay.
Step 2 Slide the unit into the slot. Firmly press the power entry module all the way into the slot.
Secure into place by tightening the captive screws. Torque to 8-10 lbf.in. Do not over
torque.
Step 3 Locate the AC power cord. Verify that the AC power cord meets your regional
requirements. Do not use power cords that do not meet these standards. Reconnect the AC
power cord into the receptacle on the power entry module.
Step 4 Replace the power cord retainer by lowering the retainer bracket toward from the power
cord and snap the bracket in place.
Step 5 Reconnect the other end of the power cord into the AC power source receptacle.
Turn the power switch on the front panel to the ON position.
Step 6 After the replacement is installed and energized, check the PEM 1 or 2 LED status on the
CCM-XP and the two status LEDs on the front of the AC PEM-3.
SR77050
If you are operating your 7750 SR-c12 with redundant power entry modules, you can install,
remove, or replace a power entry module without affecting system operation. For assured safety,
disconnect power from the remote source during the power entry module replacement.
Warning:
• Ensure that all power is OFF from the DC circuit. Locate the circuit breaker on the panel
board that services the DC circuit. Switch the circuit breaker to the OFF position. For extra
safety, tape the handle of the circuit breaker in the OFF position.
• When wiring the unit, the ground connection must always be made first and disconnected last.
• The proper wiring sequence is ground/negative to ground/negative and positive/return to
positive/return.
Step 1 Turn the ON switch on the faceplate of the DC PEM-3 to the STBY position.
Step 2 Ensure external power has been disconnected or turned off at the branch circuit device.
Both status LEDs on the faceplate of the DC PEM-3 should be unlit.
Step 3 Remove the safety cover and unscrew the nuts holding the terminal lugs in place.
Step 4 Remove the cables.
Step 5 Unscrew the captive fasteners securing the power entry module to the chassis.
Step 6 Grip the handle and pull the module out of the slot.
Step 7 If you are installing a replacement power entry module, proceed to the next section.
If you are not installing a replacement power entry module, replace the empty slot with a
blank faceplate.
SR77051
For added safety, before installing the power entry module replacement, verify that the power
switch for the new power entry module is OFF.
Step 1 Align the module with the guides in power supply bay. Slide the unit into the slot. Firmly
press the power supply all the way into the slot.
Step 2 Secure into place by tightening the captive screws. Torque to 8-10 lbf.in. Do not over
torque.
Step 3 Remove the safety cover from the DC terminal block.
Step 4 Remove the -48V Batt and 0V RTN terminal nuts.
Step 5 Run the wires from the branch circuit power source to the terminal block on the DC PEM-
3s.
Step 6 Connect the 0V RTN cable to the bottom 0V RTN terminal and re-install the nuts. Torque
to 10-12 lbf.in.
Step 7 Connect the -48V Batt cable to the top -48V Batt terminal and re-install the nuts. Torque
to 10-12 lbf.in.
Step 8 Replace the safety cover.
Fan Tray
Warning:
• Always keep your fingers away from rotating blades.
Notes:
• The fan tray is hot-swappable. The 7750 SR-c12 chassis operates safely while you replace
the fan tray for up to 10 minutes. If a longer maintenance time is required, power off the
system to prevent over-temperature conditions.
• In the event of a single fan failure, the remaining fans will switch to their highest speeds.
This is sufficient to continue to provide adequate cooling for the system but the fan tray will
need to be replaced as soon as possible. The individual fans are not field replaceable.
• To remove and replace fan trays you must have access to the rear of the chassis. You must
have enough room, at least 20-inches, to pull the fan tray completely out of the slot.
2
SR77052A
Step 1 Unpack the replacement fan tray from the protective packaging. Place on an anti-static
surface. Use a Phillips screwdriver to loosen the captive screws on the fan tray.
Step 2 Grip the fan tray handle and pull the tray half way out of the chassis.
Caution:
DO NOT put your fingers or any tool in the fan tray if the fans are still spinning. Wait until the fans
stop spinning (about 20 seconds) before removing the fan tray.
Step 3 When the fans stop spinning, remove the fan tray completely out of the slot.
SR77053A
Step 1 Grip the replacement fan tray handle and slide the connector end into the slot until the
connectors seated with the midplane.
Step 2 With a Phillips screwdriver, secure the fan tray into place by tightening the captive
screws. Torque to 8-10 lbf.in. Do not over torque.
Step 3 Verify the LED on the fan tray. The LED is lit Green if functioning properly or Red if
there is a failure or the fan tray is not inserted properly.
Air Filter
Notes:
• The air filter is accessible from the rear of the chassis. Use a Phillips screwdriver to loosen
the captive fasteners on the air filter cover.
• The air filter should be inspected monthly and replaced every three months.
2
FL IR
O
A
W
Step 1 Unpack the replacement filter from the protective packaging and place on an anti-static
surface. Use a Phillips screwdriver to loosen the captive screws on the filter cover.
Step 2 In a hinging motion, pull the bottom of the filter cover away from the chassis and lower
the top of the cover from the latching hook to remove the cover.
Step 3 Grip the tab on the air filter and pull it straight out of the chassis.
2
FL IR
O
A
W
Step 1 Slide the new filter into the filter slot, ensuring that it is properly oriented. Airflow is into
the chassis and the plastic pull tab should be visible.
Step 2 Bend the pull tab of the air filter outwards to assist with future removal of the filter.
Step 3 Fit the top slot of the filter cover onto the mating tab on the chassis and in a hinging
motion, insert the faceplate from top to bottom until it is flush with the chassis rear panel.
Step 4 Use a Phillips screwdriver to tighten the captive screws. Torque to 8-10 lbf.in. Do not over
torque.
IN THIS CHAPTER
This chapter provides information about standard cable pin assignments.
Port Types
Figure 63 displays the port types on the 7750 SR-c12 front panel.
1 2 3
Data
Data
SR77055A
1. The Alarm port is provisioned as a DB-9 serial port and is used to connect to external
alarm devices that report conditions that trigger red or amber alarms. You must provide
an appropriate cable configured according to your alarm panel.
2. The Management port is a 10/100 Ethernet port which is a channel to download images
and manage the system. This port is provisioned with an RJ-45 jack on the front panel.
You must provide a CAT5 Ethernet cable to connect to the port.
Table 29 displays the DB9 DTE mode Console port pin assignments.
R
rack
clearance 40
mounting 55
rear panel
features 22
removal
CCMs 130, 131
removing
AC power supply 158
air filter 167
CFMs 155
CMAs 151
DC power 160
fan tray 164
MDAs 141
power supply modules 154
replacement
CCMs 134
CMAs 152
replacing
AC power supply 159
air filter 76, 168