Comba Telecom RX-2620 User manual

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LT TE E W WI IR RE EL LE ES SS S R RE EP PE EA AT TE ER R 
USER MANUAL
RX-2620 QE: 1-0-0
Comba Telecom Ltd.
RX-2
6
2
0

The information contained herein is the responsibility of and is approved by the
following, to whom all enquiries should be directed in the first instance:
This is an unpublished work the copyright in which vests in Comba International
("Comba"). All rights reserved.
The information contained herein is confidential and the property of Comba and is
supplied without liability for errors or omissions. No part may be reproduced,
disclosed or used except as authorised by contract or other written permission.
The copyright and the foregoing restriction on reproduction and use extend to all
media in which the information may be embodied.

USER MANUAL FOR RX-2620
ENU STATUS : 1-0-0 Copyright - refer to title page Page 3
0.1 CONTENTS
Section Page
0.1CONTENTS........................................................................................................................... 3
0.2INDEX TO FIGURES AND TABLES ..................................................................................... 4
0.3HISTORY............................................................................................................................... 5
0.4GLOSSARY OF TERMS ....................................................................................................... 6
0.5SAFETY NOTICES AND ADMONISHMENTS...................................................................... 7
1GENERAL INFORMATION ................................................................................................... 8
2EQUIPMENT DESCRIPTION.............................................................................................. 10
2.1SYSTEM DIAGRAM ............................................................................................................ 10
2.2EQUIPMENT LAYOUT........................................................................................................ 11
2.3EQUIPMENT CONSTITUTION ........................................................................................... 11
2.4KIT OF PARTS .................................................................................................................... 12
3INSTALLATION ................................................................................................................... 13
3.1WARNINGS AND ALERTS ................................................................................................. 13
3.2SITE PLANNING CONSIDERATIONS................................................................................ 14
3.3INSTALLATION PROCEDURES ........................................................................................ 15
3.3.1GOODS INWARDS INSPECTION ...................................................................................... 15
3.3.2TOOLS................................................................................................................................. 15
3.3.3PREPARATION...................................................................................................................15
3.3.4WALL MOUNTING .............................................................................................................. 16
3.3.5POLE MOUNTING OF MOUNTING RACK......................................................................... 17
3.3.6DRIP-LOOP......................................................................................................................... 17
3.4EQUIPMENT CONNECTORS ............................................................................................ 18
3.4.1CONNECTORS ...................................................................................................................18
3.4.2GROUNDING CONNECTION............................................................................................. 19
3.4.3LI-ION BATTERY CONNECTION ....................................................................................... 19
3.4.4RF CONNECTION............................................................................................................... 19
3.4.5EXTERNAL ALARM CONNECTION................................................................................... 19
3.4.6CONNECTION BETWEEN PC AND EQUIPMENT ............................................................ 20
3.4.7EXT ALARM CONNCETION............................................................................................... 20
4COMMISSIONING............................................................................................................... 21
4.1PRE-COMMISSIONING TASKS ......................................................................................... 21
4.2MCU LED INDICATORS ..................................................................................................... 21
4.3COMMISSIONING PROCEDURES .................................................................................... 22
5OMT..................................................................................................................................... 24
5.1LOCAL AND REMOTE CONNECTIONS TO OMT............................................................. 24
5.2OMT CONFIGURATION ..................................................................................................... 26
5.3RF PARAMETER ................................................................................................................ 26
5.3.1SWITCH...............................................................................................................................27
5.3.2ATT ...................................................................................................................................... 27
5.3.3ALARM THRESHOLD ......................................................................................................... 27
5.3.4ALARM INFORMATION ...................................................................................................... 28
5.4PROPERTIES INFO............................................................................................................ 29
5.4.1EQUIPMENT ID................................................................................................................... 29
5.4.2COMM. CONFIG .................................................................................................................29
6MAINTENANCE ..................................................................................................................31
7APPENDICES...................................................................................................................... 32
7.1APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE ................................. 32
7.2APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) FORM ............................. 33

USER MANUAL FOR RX-2620
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0.2 INDEX TO FIGURES AND TABLES
Figure 1: Views of RX-2620 Enclosure.........................................................................................................9
Figure 2: RX-2620 System Diagram.......................................................................................................... 10
Figure 3: RX-2620 Internal Layout............................................................................................................. 11
Figure 4: Mounting Rack Overview............................................................................................................ 15
Figure 5: Wall Mounting ............................................................................................................................. 16
Figure 6: Pole Mounting Overview............................................................................................................. 17
Figure 7: Bottom Panel Interface Diagram ................................................................................................ 18
Figure 8: The Connection between Equipment and PC ............................................................................ 20
Figure 9: Pins Allocation for “EXT_ALM” Port ........................................................................................... 20
Figure 10: LEDs ......................................................................................................................................... 21
Figure 11: PC Protocol Setting .................................................................................................................. 24
Figure 12: Connection Type 1.................................................................................................................... 25
Figure 13: Connection Type 2.................................................................................................................... 25
Figure 14: Remote Connection .................................................................................................................. 26
Figure 15: OMT Main Window ................................................................................................................... 26
Figure 16: Switch ....................................................................................................................................... 27
Figure 17: ATT ........................................................................................................................................... 27
Figure 18: Alarm Threshold ....................................................................................................................... 28
Figure 19: Master Alarm ............................................................................................................................ 28
Figure 20: Channel Alarm .......................................................................................................................... 28
Figure 21: External Alarm .......................................................................................................................... 29
Figure 22: Equipment ID ............................................................................................................................ 29
Figure 23: Com. Config.............................................................................................................................. 30
Table 1: Equipment Constitution................................................................................................................ 11
Table 2: Equipment KOP ........................................................................................................................... 12
Table 3: Cable Connection ........................................................................................................................ 14
Table 4: RX-2620 Connectors ................................................................................................................... 18
Table 5: Pin Definition of “EXT_ALM” Port ................................................................................................ 20
Table 6: LED Indicators ............................................................................................................................. 21
Table 7: Commissioning ............................................................................................................................ 23
Table 8: IP Setting Quick Look-up Table ................................................................................................... 25
Table 9: Equipment ID ............................................................................................................................... 29
Table 10: Com. Config. .............................................................................................................................. 30

USER MANUAL FOR RX-2620
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0.3 HISTORY
Change No. ENU Details Of Change
1 1-0-0 RX-2620 user manual first created in Aug 2012 and referred to its
Chinese manual RX-2620-1001YH.

USER MANUAL FOR RX-2620
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0.4 GLOSSARY OF TERMS
ALC Automatic Level Control
ATT Attenuation
AFC Antenna Feedback Cancellation
BTS Base Transceiver Station
dB Decibel
dBm Decibels relative to 1 milliwatt
DL Downlink
DPX Duplexer
DT Donor Terminal
GSM Global Standard for Mobile Communication
Hz Hertz
ID Identification
LNA Low Noise Amplifier
MCU Main Control Unit
MHz Megahertz
MT Mobile Terminal
MTBF Mean Time Between Failures
NF Noise Figure
OMC Operation & Maintenance Center
OMT Operation & Maintenance Terminal
PA Power Amplifier
PLL Phase Locked Loop
PSU Power Supply Unit
RF Radio Frequency
RX Receive
SMA Sub-Miniature “A” Connector
SIU Slide-In-Unit
TX Transmit
UL Uplink
VAC Volts Alternating Current
VSWR Voltage Standing Wave Ratio

USER MANUAL FOR RX-2620
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0.5 SAFETY NOTICES AND ADMONISHMENTS
This document contains safety notices in accordance with appropriate standards. In the interests of
conformity with the territory standards for the country concerned, the equivalent territorial admonishments
are also shown.
Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained,
authorized personnel. At all times, personnel must comply with any safety notices and instructions.
Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The
labels conform to international standards, are triangular in shape, and are coloured black on a yellow
background. An informative text label may accompany the symbol label.
Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These notices
contain additional information on the nature of the hazard and may also specify precautions.
Warning:
These draw the attention of personnel to hazards that may cause death or injury to the operator or others.
Examples of use are cases of high voltage, laser emission, toxic substances, point of high temperature,
etc.
Alert:
These draw the attention of personnel to hazards that may cause damage to the equipment. An example
of use is the case of static electricity hazard.
Caution notices may also be used in the handbook to draw attention to matters that do not constitute a
risk of causing damage to the equipment but where there is a possibility of seriously impairing its
performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text
do not incorporate labels and may be in shortened form.
CAUTION: danger of explosion if battery is incorrectly replaced. Replace only with the same or
equivalent type.
End of Section

USER MANUAL FOR RX-2620
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1 GENERAL INFORMATION
RX-2620 LTE Wireless Repeater (hereinafter called “RX-2620”) is designed for 2600MHz network. RX-
2620 adopts broadband digital processing technology and instant broadband reaches 60MHz.
Characteristics of RX-2620 are as follows:
•It supports FDD-LTE 2600MHz system.
•Digital channel bandwidth is settable with 10MHz, 15MHz and 20MHz.
•It satisfies the bandwidth selection by setting upper and lower band edge working channel.
•High out-of-band suppression can effectively suppress the out-of-band interference signal.
•Allows DL VSWR alarm, DL input field intensity detect and output power detect functions, easy for
installation.
•Automatic gain temperature compensation function which can maintain regular operation among
working temperature.
•It supports the remote download of monitoring master unit software.
•Local Operation and Maintenance Terminal (OMT): operating status and parameters can be set or
monitored by OMT PC locally. It can also check the downlink power and download the latest OMT
version.
•Operation Maintenance Center (OMC): system working parameters and communication configuration
can be set or inquired remotely through the build-in GSM modem. If alarm is generated, the
equipment will dial up to OMC automatically in the mode of SMS or GPRS.
•Build-in Li-ion battery ensures that alarm information can automatically report to OMC in case of
equipment power failure.
•Designed for all weather outdoor application – waterproof, damp-proof and Omni-sealed.

USER MANUAL FOR RX-2620
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The following figure shows the enclosure of the RX-2620.
420
330 182
Figure 1: Views of RX-2620 Enclosure
End of Section

USER MANUAL FOR RX-2620
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2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
LNA1
LNA2
Mobile
Ant
Donor
Ant
Mobile
Power
Supply
Alarm
Indicator Main Control Unit
External
Power
OMT
Li-ion
BATT
Modem
DT MT
OMT
Computer with
Data card
Wireless
Modem
OMC
PA1
PA2
DL Frequency
Selective Module
UL Frequency
Selective Module
BTS
Figure 2: RX-2620 System Diagram
As shown in the above figure, the downlink BS signals go through DT port to the system and then to
downlink by duplexer separation. The DL signals will go through LNA then to digital RF monitoring
module for digital filtering and amplifying. After amplification, the signals are transmitted at the MT port to
the service antenna.
On the UL, the signals transmitted by the mobile go through MT integration duplexer and digital RF
monitoring module then to uplink PA to power amplify and filter via duplexer, finally get back to BS by
donor antenna.