COMBA RXA3748 User manual

RXA3748/RXA3792
RXB3748/RXB3792
QE: 1-0-0
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京信通信系统（中国）有限公司
CriticalPoint Public Safety BDA
DIGITAL BAND
SELECTIVEREPEATER
USER MANUAL

CriticalPoint
PUBLIC SAFETY BI-
DIRECTIONALAMPLIFIER
USER MANUAL
RXA3748/RXA3792
RXB3748/RXB3792
QE: 1-0-0
Comba Telecom Ltd.

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INSTALLATION GUIDE FOR RX-7W22, II2
The information contained herein is the responsibility of and is approved by the
following, to whom all enquiries should be directed:
This is an unpublished work the copyright in which vests in Comba International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 authorized 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.

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INSTALLATION GUIDE FOR RX-7W22, II2
0.1 CONTENTS
Section Page
1.1 CONTENTS....................................................................................................................................... 4
1.2 INDEX TO FIGURES AND TABLES............................................................................................. 6
1.3 HISTORY........................................................................................................................................... 7
1.4 GLOSSARY OF TERMS................................................................................................................. 8
1.5 SAFETY NOTICES AND ADMONISHMENTS............................................................................. 9
1 GENERAL INFORMATION........................................................................................................... 10
2 EQUIPMENT DESCRIPTION....................................................................................................... 14
2.1 FUNCTIONAL BLOCK DIAGRAM............................................................................................... 14
2.2 EQUIPMENT LAYOUT.................................................................................................................. 15
2.3 EQUIPMENT CONSTITUTION.................................................................................................... 16
3 INSTALLATION .............................................................................................................................. 17
3.1 WARNINGS AND ALERTS........................................................................................................... 17
3.2 SITE PLANNING CONSIDERATIONS ....................................................................................... 18
3.2.1 SITE PLANNING ............................................................................................................................ 18
3.2.2 INSTALLATION CHECKLIST....................................................................................................... 19
3.3 INSTALLATION PROCEDURES................................................................................................. 20
3.3.1 GOODS INWARDS INSPECTION............................................................................................... 20
3.3.2 TOOLS............................................................................................................................................. 20
3.3.3 PREPARATION.............................................................................................................................. 20
3.3.4 WALL MOUNTING......................................................................................................................... 21
3.3.5 DRIP-LOOP..................................................................................................................................... 21
3.4 EQUIPMENT CONNECTORS...................................................................................................... 22
3.4.1 PS BDA CONNECTORS............................................................................................................... 22
3.4.2 PS BDA LED INDICATORS.......................................................................................................... 23
3.4.3 GROUNDING CONNECTION...................................................................................................... 23
3.4.4 RF CABLE CONNECTION ........................................................................................................... 23
3.4.5 ETHERNET CONNECTION......................................................................................................... 23
3.4.6 DRY CONTACT CABLE CONNECTION.................................................................................... 24
4 COMMISSIONING ......................................................................................................................... 25
4.1 PRE-COMMISSIONING TASKS.................................................................................................. 25
4.2 COMMISSIONING PROCEDURE............................................................................................... 26
5 WEB GUI......................................................................................................................................... 28
5.1 WEB GUI CONNECTION ............................................................................................................. 28
5.2 WEB GUI INTRODUCTION.......................................................................................................... 29
5.2.1 [HOME] ............................................................................................................................................ 29
5.2.2 [COMMISSIONING]....................................................................................................................... 31
5.2.3 [MANAGEMENT]............................................................................................................................ 31
5.3 COMMISSIONING PROCEDURE............................................................................................... 38
6 MAINTENANCE.............................................................................................................................. 41
7 APPENDICES................................................................................................................................. 42
7.1 APPENDIX A................................................................................................................................... 42
7.2 APPENDIX B: TOOLS................................................................................................................... 44
7.3 APPENDIX C: DECLARATION OF HARMFUL SUBSTANCES AND CONTENT................ 45

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INSTALLATION GUIDE FOR RX-7W22, II2
7.4 APPENDIX D: TROUBLESHOOTING QUICK GUIDE............................................................. 46
7.5 APPENDIX E: DEVICE REPORT EXAMPLE............................................................................ 49
7.6 APPENDIX F: RMA (RETURN MATERIAL AUTHORIZATION) ............................................. 50

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INSTALLATION GUIDE FOR RX-7W22, II2
1.2 INDEX TO FIGURES AND TABLES
Figure 1: Front, Side and Bottom Views of the PS BDA Enclosure.................................................................. 10
Figure 2: PS BDA Functional Block Diagram.................................................................................................... 14
Figure 3: Layout of the PS BDA........................................................................................................................ 15
Figure 4: Mounting Rack Overview................................................................................................................... 20
Figure 5: PS BDA Wall Mounting ..................................................................................................................... 21
Figure 6: Equipment Connectors...................................................................................................................... 22
Figure 7: Commissioning Procedure ................................................................................................................ 26
Figure 8: Input IP Address................................................................................................................................ 28
Figure 9: Input Domain Name .......................................................................................................................... 28
Figure 10: Input User Name and Password...................................................................................................... 28
Figure 11: Web GUI Main Screen..................................................................................................................... 29
Figure 12: Overview Screen ............................................................................................................................. 29
Figure 13: Device Alarm Screen....................................................................................................................... 30
Figure 14: 800MHz Screen............................................................................................................................... 30
Figure 15: Commissioning Screen.................................................................................................................... 31
Figure 16: Management Screen...................................................................................................................... 31
Figure 17: Management –Device Info.............................................................................................................. 32
Figure 18: Management –Comm. Setting........................................................................................................ 32
Figure 19: Management-Alarm Setting............................................................................................................. 33
Figure 20: Management-Alarm Setting............................................................................................................. 33
Figure 21: Management –Isolation.................................................................................................................. 34
Figure 22: Management –Reset...................................................................................................................... 34
Figure 23: Management –Report..................................................................................................................... 35
Figure 24: Management –Report..................................................................................................................... 35
Figure 25: Management –Log.......................................................................................................................... 36
Figure 26: Management –License................................................................................................................... 36
Figure 27: Management –Security................................................................................................................... 37
Figure 28: Commissioning Procedure –Start................................................................................................... 38
Figure 29: Commissioning Procedure –Site Info. Setting................................................................................ 38
Figure 30: Commissioning Procedure –Isolation Detection............................................................................. 39
Figure 31: Commissioning Procedure –Isolation Detection Confirm ............................................................... 39
Figure 32: Commissioning Procedure –Finish................................................................................................. 40
Figure 33: Alarm list.......................................................................................................................................... 46
Figure 34: Reset PA ......................................................................................................................................... 47
Table 1: Equipment Connectors....................................................................................................................... 22
Table 2: LED Indicators.................................................................................................................................... 23
Table 3: Pin Definition of Dry Contact Cable.................................................................................................... 24
Table 4: Commissioning Task Explanation....................................................................................................... 27

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INSTALLATION GUIDE FOR RX-7W22, II2
1.3 HISTORY
Change No.
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Details Of Change
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This manual first created and issued in May. 2020.

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INSTALLATION GUIDE FOR RX-7W22, II2
1.4 GLOSSARY OF TERMS
Abbreviation
Definition
ALC
Automatic Level Control
ATT
Attenuator
BTS
Base Transceiver Station
CH
Channel
CSA
Cross Sectional Area
dB
Decibel
dBm
Decibels relative to 1 milliwatt
DL
Downlink
DT
DonorTerminal
DPX
Duplexer
FS
FrequencySelection
Hz
Hertz
ID
Identification
IF
IntermediateFrequency
LNA
Low Noise Amplifier
LOS
Line-of-Sight
MCU
Main Control Unit
MHz
Megahertz
MT
MobileTerminal
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
RadioFrequency
SMA
Sub-Miniature A Connector
UL
Uplink
VAC
Volts Alternating Current
VDC
Volts Direct Current
VSWR
Voltage Standing Wave Ratio

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INSTALLATION GUIDE FOR RX-7W22, II2
1.5 SAFETY NOTICES AND ADMONISHMENTS
This document contains safety notices in accordance with appropriate standards. In the interests of conformity
withthe territory standards for thecountryconcerned,theequivalentterritorialadmonishmentsarealsoshown.
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 colored black on a yellow background. An
informative text label may accompany the symbol label.
Hazardlabelingis supplementedbysafetynotices intheappropriateequipmentmanual.Thesenoticescontain
additional information on the nature of the hazard and may also specify precautions.
Note: The grantee is not responsible for any changes or modifications not expressly approved by the party
responsible for compliance. Such modifications could void the user’s authority to operate the equipment.
For compliance with the general population RF exposure limits, each individual antenna used for this
transmitter must be installed to provide a separation distance greater than 31.2cm or more from all persons
during normal operation and must not be co-located with any other antenna for meeting RF exposure
requirements.
Warning Notices:
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.
WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and
QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to
operate this device. The PS BDA can be configured as Class A ( FCC ID: PX8RXA37) or Class B (FCC
ID:PX8RXB37) Signal Booster. You MUST register Class B signal boosters (as defined in 47 CFR
90.219) online at
www.fcc.gov/signal-boosters/registration. Unauthorized use may result in significant forfeiture
penalties, including penalties in excess of $100,000 for each continuing violation.
Note: The grantee is not responsible for any changes or modifications not expressly approved by the party
responsible for compliance. Such modifications could void the user’s authority to operate the equipment.
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.
Disconnection of the 2 RF connectors may cause damage to the equipment when power is on
The application antenna and RF cable are not provided. FCC regulation mandate that the ERP of
type B signal boosters should not exceed 5W, this booster has a maximum programmable
composite output power of 5W(37dBm) for Downlink, 1W(30dBm) for uplink. Therefore, the gain
of the antenna should be of 0dBi or less.

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INSTALLATION GUIDE FOR RX-7W22, II2
WARNING!
Use only authorized and approved antennas, cables and/or coupling devices! The use of unapproved
antennas, cables or coupling devices could cause damage and may be of violation of FCC regulations. The
use of unapproved antennas, cables and/or coupling devices is illegal under FCC regulations and may
subject the user to fine. End of Section