Technologies, Inc.

C-band Block Up Converter

Installation and Operation Manual

© 2010 UPCOM TECHNOLOGIES INC. All Rights Reserved.

All Information contained in this Manual is the property of UPCOM TECHNOLOGIES INC. The
Manual in whole or in part, may not be duplicated or reproduced without the written permission of
UPCOM TECHNOLOGIES INC.

The Manual is intended to be used as a guide only and may be revised, modified or altered at any
time by UPCOM TECHNOLOGIES INC. UPCOM shall not be liable to users of the Manual nor to any
other person, firm, company or other body for any loss, direct, indirect or consequential, in contract or
in tort or for any negligent mis-statement or omission contained herein, by reason of, arising from or in
relation to any such user, other person, company or body relying or acting upon or purporting to rely
or act upon any matter contained in this Manual.

Upcom Technologies Inc.

San, Jose CA
www.upcom.com
 TABLE OF CONTENTS

CHAPTER 1
INTRODUCTION 1-1
1.1 General Description 1-1

1.2 Frequency Band Options 1-2

1.3 Supply Voltage Options 1-2

1.4 Compatibility 1-2

1.5 BUC X SSPA Booster 1-3

CHAPTER 2
SPECIFICATIONS 2-1
2.1 Specifications of C-band Blocked Up- Converter 2-1
2.1.1 Electrical 2-1
2.1.2 Power Supply 2-3
2.1.3 LED Indicator 2-3
2.1.4 Mechanical 2-3
2.1.5 Environment 2-4

CHAPTER 3
INSTALLATION 3-1
3.1 General 3-1

3.2 Transportation 3-2

3.3 Unpacking 3-3

3.4 Repacking 3-4

3.5 Preparation 3-5

3.6 Site Considerations 3-6

3.7 Mounting 3-7

3.8 Connections 3-8

3.11.1 Grounding

3.9 Sealing 3-9

CHAPTER 4 (OPTIONAL)
MONITOR & CONTROL

OPERATING INSTRUCTIONS (OPTIONAL FEATURES) 4-1

4.1 General 4-1

Monitor and Control (M&C) Connection

CHAPTER 5 5-1

5.1 Installation 5-1

5.1.1 Contents 5-1
5.1.2 Interconnection 5-1
5.1.3 Important Installation Issues 5-1

5.2 M&C Software 5-2

5.3 L BAND FEED TO RCU 5-3

CHAPTER 6
THEORY OF OPERATION 6-1
6.1 6-1

6.2 Demultiplexer (DEMUX) 6-2

6.3 Upconverter (U/C) 6-3

6.4 Synthesized Local Oscillator (LO) 6-4

6.5 Solid State Power Amplifier (SSPA) 6-5

6.6 Monitor & Control (M&C) - Optional 6-6

6.7 Power Supply (PS) 6-7

CHAPTER 7
MAINTENANCE 7-1
7.1 General 7-1

7.2 Maintenance Procedure 7-2

7.2.1 Gain Testing 7-2
7.2.2 Water Leakage Protection 7-2

7.3 Final Check 7-3

CHAPTER 8
WARRANTY 8-1
8.1 Limited Warranty 8-1

8.2 RMA 8-2

8.3 Other Repairs 8-3

 CHAPTER 1

INTRODUCTION

1.1 GENERAL DESCRIPTION

The C-band BLOCK UP CONVERTER (C-BUC) is a high performance, cost-effective RF
transmitter designed for satellite communication with high speed transmission capability
suitable for both television and high speed data communication. It is suitable for Single
Carrier Per Channel (SCPC), Multi-Carrier Per Channel (MCPC), Demand Assigned Multiple
Access (DAMA) and Time Division Multiple Access (TDMA) applications.

Baseband signals are modulated onto L-band frequency and multiplexed with 10 MHz
reference and DC supply on the center conductor of the IF cable. It is then up converted and
amplified in the C-BUC for transmission to the satellite via an antenna dish.

The C-band Block Up Converter (C-BUC) serves to up convert the L-band transmit signal to
the C-band transmit frequency range and to to amplify it by an integrated SSPA.

Power levels range from 1 mW to 500 W output. It is designed with low power consumption,
well suited for systems and applications where power is of prime concern. With low pulse
mode phase perturbation, it is extremely useful for systems that require burst mode
applications.

The transmit output waveguide is WR137 with groove and O-ring is provided. A yellow
transparent tape is laminated onto the waveguide; together with the O-ring and proper
installation, this prevents water ingress through the waveguide.

DO NOT REMOVE THE YELLOW TRANSPARENT TAPE FROM THE TRANSMIT

WAVEGUIDE OUTPUT FLANGE !

1.2 FREQUENCY BAND OPTIONS

The BUC transmits with the following frequencies options:

INTELSAT C-band Output transmit: 5.850 to 6.425 GHz

Local oscillator: 4.900 GHz
Input transmit: 950 to 1525 MHz

INSAT C-band Output transmit: 6.725 to 7.025 GHz

Local oscillator: 5.625 GHz
Input transmit: 1100 to 1400 MHz

Full C-band Output transmit: 5.850 to 6.725 GHz

Local oscillator: 4.900 GHz
Input transmit: 950 to 1825 MHz
1.3 SUPPLY VOLTAGE OPTIONS
The BUC 1 mW driver derives its voltage supply through the centre conductor of input
connector. Wide input supply voltage range from +18 to +60 VDC

For high power BUC with Booster, the booster’s supply voltage should be:

220 VAC @ 50 / 60 Hz: Voltage range is 180 to 260 VAC

1.4 COMPATIBILITY BUC X SSPA BOOSTER

The UPCOM C Band SSPAs must be used with the low power BUC driver of 1 mW maximum
power supplied with the equipment.

The use of drivers with output power higher than 1 mW may damage the SSPA booster and
void the equipment warranty.
CHAPTER 2

SPECIFICATIONS

2.1 SPECIFICATIONS OF C-BAND BUC

The C-BUC is a single stage up conversion from L-band to C-band frequencies using a 10 MHz
external referenced phase locked oscillator. The spectrum is non-inverted with phase noise surpassing
Intelsat standards and low DC power consumption.

2.1.1 Electrical
Parameter Unit Min Typ Max
Input Frequency
Option 0 – Intelsat MHz 950 1525
Option 1 – Insat MHz 975 1275
Option 5 – Full C MHz 950 1825
Input Level to P1dB dBm -20
Input VSWR 2.0 : 1
Input Impedance Ω 50
Output Frequency
Option 0 – Intelsat GHz 5.850 6.425
Option 1 – Insat GHz 6.725 7.025
Option 5 – Full C GHz 5.850 6.725
Output VSWR 2.0 : 1
Local Oscillator Frequency No frequency inversion
Option 0 – Intelsat GHz 4.900
Option 1 – Insat GHz 5.625
Option 5 – Full C GHz 4.900
External Reference
Frequency MHz 10
Power Level dBm -5 +5
Phase Noise at frequency offset
10 Hz dBc/Hz -120
100 Hz dBc/Hz -140
1 kHz dBc/Hz -150
10 kHz dBc/Hz -155
100 kHz dBc/Hz -160
 Parameter Unit Min Typ Max
Gain Flatness Over Full Bandwidth
For 1mW model (at 25°C) dB 2
For 20W to 500W (at 25°C) dB 7
Gain Stability Over Operating Temperature (-40°C to 60°C)
For 1mW to 10W dB 5
For 20W to 500W dB 6
Intermodulation Distortion
(2 carriers 1 MHz apart, 6 dB backoff each from
P1dB)
For 1mW dBc -35
For 10W to 50W dBc -27
For 80W and above dBc -25
Spurious – In-band @ P1dB dBc -55
Spurious – Out-of-band (per 4 kHz)
For 1mW dBm -70
For all other models dBm -23
Phase Noise at frequency offset
100 Hz dBc/Hz -63
1 kHz dBc/Hz -73
10 kHz dBc/Hz -83
100 kHz dBc/Hz -93
Pulse Mode Phase Perturbation
Full pulse (> 5 ms) degree 4
For the starting 30 µs degree 3 p-p

2.1.2 Power Supply

Parameter Unit Min Typ Max
C-BUC Power Supply
Supply Voltage 1 VDC 19 24 36
C-BAND Booster Power Supply
230 VAC @ 50 / 60 Hz VAC 180 230 260

Power Consumption Unit Typical

100W VA 300
200W VA 1000
300W VA 1200
400W VA 2000
500W VA 2400
2.1.3 LED Status Indicator
Parameter LED Indicator Alarm Status
LO unlocked, transmit auto switch off RED Alarm ON
Functional GREEN Normal

2.1.4 Mechanical
Parameter Unit Min Typ Max
Input Interface N-type female
Output Interface WR-137G with O-ring
External Dimensions
1mW mm 210(L) × 157(W) × 65(H)
20W mm 430(L) × 278(W) × 260(H)
50W mm 430(L) x 278(W) x 275(H)
80W to 500W mm Consult factory
Parameter Unit Min Typ Max
Weight
1mW kg 2.7
20W to 50W kg 16.0
80W to 500W kg Consult factory
Finish Creamy white, matt surface
Mounting Holes

2.1.5 Environmental
Parameter Unit Min Typ Max
Operating Temperature °C -40 55
Storage Temperature °C -55 85
Relative Humidity, Condensing % 0 100
Altitude Up to 15,000 ft
Solar 360 BTU/sq. ft/hr @ 50°C
Salt No corrosion, salt as found in coastal areas
Operating Shock 10g, 10 msec, each axis
Operating Drop 4 inch, bottom face
Operating Vibration Random vibration, 5 – 500 Hz, 10 min/axis,
0.5g (r.m.s.)
 Parameter Unit Min Typ Max
Survival Vibration, Unpackaged Random vibration
10 min/axis, 5 – 350 Hz at 0.011
g2/Hz, 350 – 500 Hz at 0.00555 g2/Hz
Resonant search
5 – 500 Hz, swept sine, 1 octave/min
sweep rate, 0.5g
Resonant dwell
0.75g, 5 min each resonance, 4 resonances
per axis
2.2 OUTLINE DRAWINGS

Figure 2-1: Outline Drawing of C-band Block Up Converter (C-BUC) 1mW

Figure 2-4: Outline Drawing of C-band Block Up Converter (C-BUC) 20W to 60W
Figure 2-5: Outline Drawing of 20 and 60W C-band Boosters
Figure 2-6: Outline Drawing of 80W to 500W C-band Boosters
CHAPTER 3

INSTALLATION

3.1 GENERAL
This chapter provides all the necessary information and step-by-step instructions for the
successful installation of the C-BUC BUC Outdoor Unit.

Always handle the ODU with care. Do not let the ODU drop or knock against
! things as excessive shock may cause damage to the units. UPCOM
TECHNOLOGIES INC. will not warranty any defects due to excessive shock
WARNING
or vibration.

3.2 TRANSPORTATION
When transporting the ODU, surround the unit with shock absorbing material to
provide a firm cushion and prevent movement inside the container. This is to
prevent excessive shock to the unit as it may cause damage.

3.3 UNPACKING
Prior to unpacking, inspect the exterior of the container for any damage suffered during
shipment. If any damage is present, contact the carrier that delivered the system and submit a
damage report. Failure to do so could complicate or invalidate a claim. Carefully unpack and
remove all items from the shipping container, and inspect the items further for any sign of
damage. Be careful not to damage any components when opening the shipping container.
Save all packing materials until the inspections are completed. Compare the contents of the
shipping container to the packing slip to ensure the items received match those listed. If any
loss or damage is discovered, contact UPCOM or the local UPCOM representative before
proceeding with the installation.

3.4 REPACKING
Use the original packing containers if possible. Place the unit in a clean and open work area.
Cover all connectors with a plastic cap designed for this purpose (adhesive tape is not
recommended as it quickly deteriorates, leaving a residue on the connector). Wrap the unit in
a bubble plastic bag. Surround the unit in a shock absorbing material to provide a firm
cushion and prevent movement inside the container. Use a proper shipment container. Seal
the container and mark exterior clearly “FRAGILE Electronic equipment.”

3.5 PREPARATION
 It is strongly recommended that sufficient tools be available for the installation. The following
Table 5-2 lists some of the typical tools required for the installation.

Description Qty
Complete Set of Socket wrench 1
Screw driver (Philips) 1
Cutter 1
Multi-meter 1

Table 3-2: Typical Tools Required For Installation

3.6 SITE CONSIDERATIONS

According to the instructions supplied by the antenna manufacturer, locate and install the
antenna in an area that is free from RF interference from motors and electronic equipment. A
clear line of sight from the antenna to the satellite is essential. To ensure safety and
protection of personnel and equipment, lightning arresters should also be used at the site.
Size 3/0 or 4/0 stranded copper wire should be used to bond the C-BUC, LNB and Booster to
the antenna frame and to the lightning protection ground rod. The grounding resistance of the
antenna should not be more than 10 Ω.

3.7 MOUNTING
The antenna must have sufficient support to minimize sway in strong winds with the ODU
mounted.

When mounting the ODU, allow enough space to adjust azimuth and elevation of the antenna
and to handle the cables. The mounting position must also allow air movement across the
heatsink fins of the ODU.

Note: The length of the interconnecting cables must be taken into consideration in
determining the mounting location of the various units.
3.8 CONNECTIONS

3.8.1 Grounding
Electrical bonding (grounding) of the C-BUC is recommended to prevent possible
damage from lightning and/or other induced electrical surges. To ensure safety and
protection of personnel and equipment, lightning arresters should also be used at the
site. Size 3/0 or 4/0 stranded copper wire should be used to bond power supplies of the
ODU equipment to the antenna frame and to lightning protection ground rod.

3.9 SEALING
To complete an installation, seal up all the connectors and waveguide joints of
the system using self-amalgamating tape. It is recommended that all “sealing
job” be done after the system has been verified to be operational. The
following points should be taken care of:

1. Make sure that all the connectors are hand-tightened before sealing.

2. The sealing must cover from the housing of the C-BUC until after the
heatshrink sleeve. Refer the Figure 3-6 for the sealing.

3. All the unused connectors must be covered with a cap and sealed.

4. Make sure all waveguide joints are properly sealed with an appropriate

gasket.
 Figure 3-6: Sealing the Connectors

CHAPTER 4

MONITOR & CONTROL

GENERAL
The C-BUC with M&C port can be easily configured to have its operating status monitored via a
PC using the user-friendly Monitor and Control (M&C) software.

MONITOR & CONTROL (M&C) CONNECTION

The C-band BUC support both RS232 and RS485 serial port communication. The C-BUC can
auto-select RS232 or RS485 mode based on your connection. The following describes the C-
BUC pin configuration for M&C connector.

Pin # M&C Connector at C-BUC

Pin A Reserved
Pin B Ground
Pin C Reserved
Pin D Tx link status (Normally close on Tx Form “C” Relay)
Pin E Rx232 / RS485
Pin F Tx232 / RS485
Pin G Reserved
Pin H Com of Form “C” Relay

Table 4-1: M&C Circular Connector Pin Configuration for C-BUC

CHAPTER 5

REDUNDANT BUC SYSTEM INSTALLATION PROCEDURES

5.1 INSTALLATION
5.1.1 CONTENTS

The Redundant System consists of the following major items:

C Band Booster SSPA – 2 units
1 mW L Band to C Band Up converter – 2 units
Remote Control Unit – RCU
Waveguide Switch C Band
C Band High Power Load
Flexible Twistable Waveguide – 2 pieces
Interconnect Cables – As per parts list attached
AC Power Protection Adapter – SSPAs – 2 units
AC Power Protection Adapter – RCU – 2 units
UPCOM M&C Software – 1 CD
USB to RS-485 Cable Adapter

5.1.2 INTERCONNECTION
The modules of the redundant system shall be interconnected with the cables
provided with the units. The Interconnection diagram shows the cables to be
used and the corresponding part numbers for each position

5.1.3 IMPORTANT INSTALLATION ISSUES

Do not remove the amber plastic seal/sticker from the SSPAs output flanges.
Removal of the amber plastic seal/sticker from the SSPA flanges will void the
warranty – KEEP AMBER SEALS AT SSPA!
Remove the amber plastic seal/sticker from the waveguide switch flanges. If the
amber plastic seal/stickers from the waveguide switch flanges are NOT removed
it will void the warranty. Using the switch with the seals may cause the seals to
melt down and damage the switch – REMOVE AMBER SEALS FROM
WAVEGUIDE SWITCH!
The installation kit contains the necessary screws for each flange. In special do
not use long screws at the waveguide switch flanges. Use the shorter screws
provided with the units. Forcing a long screw into the waveguide switch will
damage the switch moving parts.
All AC Power Adapters require nominal 220 VAC ( 180 to 260 VAC )
Do not bend the flexible waveguides
Install the sealing gaskets at all the waveguide flanges, with silicone paste; lack
of proper sealing may cause damages to the units not covered by warranty.
Each SSPA has two sets of fans, one on the top and one at the bottom of the unit
; the fan sets are shipped disconnected for better protection during transportation;
CONNECT BOTH FAN SETS BEFORE TURNING ON THE UNIT.
Do not turn on SSPAs power without proper termination of the output flanges with
a load or to the antenna. Transmission without proper waveguide termination may
damage the unit and may be harmful to people around the units.
The RCU-T Unit provides 10MHz Reference and 24 VDC to the BUCs . The IF
input to the RCU should be L Band Only.
Do not use any other type or model of BUC as driver; higher power BUCs may
overdrive the SSPAs and damage the unit.
 5.2 M&C SOFTWARE

Install the UC300 M&C Software on a PC

Connect the USB-R-485 Adapter cable to the PC and to the RCU M&C Cable
Go to Set Up Menu
Go to Configuration
Select Communications
PC Com Port 3
RS485
9600 bps
Select Device
Driver Axxxx
Booster AAAxxxxxxxM
RCU External – TX
Redundancy

5.3 L BAND FEED TO RCU

Attention: The RCU-T Unit provides 10MHz reference and 24 VDC to the
BUC. The IF input to the RCU should be L Band only.

LENGTH
ITEM NO. PART N0. DESCRIPTION QTY
(M)
1 1001520980 AC POWER CABLE TPB 220VAC 3 4
2 2502040137 RG8 RF CABLE 3 2
3 2502040135 HELIAX RF CABLE 1 2
4 Not Applicable
4A 4203490057 FLEXIBLE WAVEGUIDE 1 2
5 2502040155 M&C CABLE FOR TX WG SW 3 1
M&C CABLE FROM DRIVER TO
6 2502040562 2 2
BST
7 2502040561 M&C CABLE FROM BST TO RCU 2 2
8 5903290003 TX WG SW (WR 137) X 1
4 Not Applicable
TX WG TERMINATION (WR137,
9A 4203490099G X 1
500W

10 2502040699 RCU M&C TO PC X 1

11 6103480008 CONVERTER RS485/USB X 1
CHAPTER 6

THEORY OF OPERATION

6.1
The main function of the is to up-convert the L-band input signals from the indoor modulator

to an RF signal ranging from 5.850 to 7.025 GHz (depending on the frequency bands) for

transmission via the antenna. The outdoor equipment comprises a Block Up-Converter

(BUC).The BUC consists of:

• Demultiplexer
• Up-converter
• Synthesized local oscillator
• Solid-state power amplifier - SSPA
• Monitor and Control module
• Power supply

The outdoor equipment block diagram is shown in Figure 5-1.

Figure 5-1: BUC Block Diagram

6.2 DEMULTIPLXER

The DEMUX module splits the external reference 10 MHz, L-band and DC supply voltage

from the incoming coaxial cable to the BUC.

6.3 UP-CONVERTER
The U/C module is an up-conversion unit. The C-BUC receives the L-band transmit signal

from an indoor modem and after passing through a high pass filter (to reject interference and

harmonics), up-converts the signal with a LO signal resulting in the desired RF transmit

frequency in C-band. The RF signal is then amplified by the solid-state power amplifier as a

final step before transmission.

6.4 SYNTHESIZED LOCAL OSCILLATOR (LO)

The LO signals for the U/C is derived from a frequency synthesizer. The synthesizer is

externally referenced to a 10 MHz sinewave oscillator.

6.5 SOLID-STATE POWER AMPLIFIER (SSPA)

Signals from U/C will be amplified to a suitable power level to reach the satellite. The required

transmit power depends on the BUC network system design and the derivation of the suitable

transmit power will not be discussed here. The SSPA provides signal amplification as the final

stage before transmission to the satellite via the antenna.

The SSPA receives C-band transmit signal from the U/C. This transmit signal is amplified in

the RF section for final transmission. The RF section consists of multiple gain stages that are

based on a high performance microwave power GaAs FET designed to provide high gain,

high power and low distortion for satellite communication application. All the power GaAs

FETs are housed in different partitions for EMI isolation. These partitions will eliminate any

interference from the DC section and other gain stages. The input and output of the SSPA are

protected from any mismatch with internal isolators. However, it is a good practice to

terminate the RF output during testing.

6.6 MONITOR & CONTROL (M&C) - OPTIONAL

An user friendly Monitor and Control software is provided to enable the user to monitor and

control the C-BUC. The M&C is designed with user friendly GUI (Graphical User Interface) so

as to enable the user to quickly set-up and operate the system.

The M&C module is designed as the central processing hub of the C-BUC. It is developed

on an embedded microcontroller to achieve the monitor and control functions. It monitors

transmit alarm, LO alarm and SSPA on/off status. It can also be used to control SSPA

on/off. All the configuration parameters are maintained in non-volatile EEPROM, which

provides for total recovery after a power-down situation.

The C-BUC may be connected directly to RS-232 or RS485 cable using double shielded

twisted pair wire. The distance between the transceiver and the computer interface terminal

can be up to 30 metres for the RS232 interface.

6.7 POWER SUPPLY

The power supply is designed to convert the incoming DC power to a suitable DC voltage

level required for the various modules of the ODU system. It is designed with a power shut

down circuitry to switch off the SSPA when LO unlocks. This is to prevent any corrupted

signals from transmitting out of the malfunctioned system.

CHAPTER 7

MAINTENANCE

7.1 GENERAL

This chapter describes how to perform periodic maintenance on the C-BUC. It is recommended

to carry out the maintenance service at least twice a year to ensure the performance of the

system.
 It is recommended to maintain a SET-UP RECORD that contains the modem and C-BUC

configurations, power levels of the carriers at various points of the link and the system power level

diagram when the system was set up. Make sure that this record is updated every time when any

changes are made.

Make sure that the system can be interrupted for approximately two hours before starting the

maintenance. It is advised to understand the procedure and prepare necessary equipment before

starting the service.

7.2 MAINTENANCE PROCEDURE

7.2.1 Gain Testing

The following procedure is to be carried out to check the uplink gain.

At indoor,

Step 1 Check if the transmit configuration of the modem and C-BUC configuration
comply with the SET-UP RECORD. Contact the responsible personnel in case of
any discrepancies.

Step 2 Turn on the pure carrier of the modem and measure the power level using a
spectrum analyzer.

Step 3 Measure the indoor AC power supply. If the AC power supply varies beyond the
limits highlighted in Table 6-1, then an Automatic Voltage Regulator between the
AC power supply and the equipment is required.
 230 VAC 60 Hz
Tolerance
Line to Neutral 230 VAC ± 15%
Line to Ground 230 VAC ± 15%
Neutral to Ground < 5 VAC

Table 6-1: AC Power Supply Tolerances

At outdoor,

Step 5 Ensure that all the IF and RF cables are labeled.

Step 6 Make sure that all the cables are in good condition using the mega ohm meter.
Ensure that the cables are removed at both ends before the measurements are
taken. Check visually if the connectors are not damaged.

Cable connection and disconnection should be done properly to avoid

! damage to the cables or connectors that may cause intermittent
problems in the future.
CAUTION

Step 7 Measure the ground resistance of the antenna with a mega ohm meter. The
reading should not be more than 10 Ω.

Step 8 Connect back the transmit cable to the modem and measure the power level of
the pure carrier to the C-BUC input. Calculate the transmit IFL loss and check if it
is close to that at the SET-UP RECORD.

Power off the C-BUC and connect a waveguide coupler with

! measurement port of 30 db attenuation and a dummy load of 500
watts at the RF OUT of the C-BUC.
CAUTION

Step 9 Turn on the C-BUC and connect the IF IN cable to the C-BUC. Record the RF
OUT power level and calculate the uplink gain. Check if it complies with the SET-
UP RECORD and C-BUC gain setting.

Step 10 Measure the level at the modem IF output and calculate the receive IFL loss.
Check the value with that at the SET-UP RECORD.
7.2.2 Water Leakage Protection
All the connectors at the outdoor should be properly sealed against water leakage using self-
amalgamating tapes. The following is the procedure for the maintenance.

Step 1 Make sure all the connectors are hand-tightened before sealing.

Step 2 Check and ensure that all the connectors and waveguide joints of the system are
properly sealed using self-amalgamating tape. Re-do the sealing if the existing
sealing is not good

Step 3 The sealing must cover from the housing of the C-BUC until after the heatshrink
sleeve at the cables.

Step 4 All the unused connectors must be covered with caps and sealed.

7.3 FINAL CHECK

Make sure everything including the equipment settings is normalized after
! the maintenance. Make sure that the SET-UP RECORD is updated for any
changes made to the configuration.
CAUTION

CHAPTER 8

WARRANTY

8.1 LIMITED WARRANTY

Should this product fail due to defects in materials or workmanship, UPCOM will, at its sole
option, repair or replace it with new or rebuilt parts, free of charge, for ONE year from the date
of its shipment from the UPCOM factory. This warranty does not cover damage which occurs
in shipment or failures caused by products not supplied by UPCOM or its authorized
contractors or agents, or any failure caused by operation of the product outside of its
published electrical or environmental specifications, or any causes other than ordinary use.

8.2 RMA

In order to exercise your rights under the warranty, you must first contact UPCOM to obtain an

RMA (Return Material Authorization) number. The RMA tag will have to be filled in and attached

to the unit before the unit is shipped to UPCOM . If it is necessary to return the product for repair,

you are responsible for paying the cost of shipping it to UPCOM factory. UPCOM will pay the cost

of shipping the product to you when the repairs are completed.

8.3 OTHER REPAIRS

Non-warranty and out-of-warranty repair service is available from UPCOM for a nominal charge.

The repair service can be obtained by contacting UPCOM to request for an RMA number, as

described above. You are responsible for paying the cost of shipping the unit both to and from

UPCOM factory for these repairs.