COMBA CriticalPoint QE Series User manual

ANTENNA MONITORING
SYSTEM
USER MANUAL
Public Safety AMS SERIES QE: 1-0-0
FIRMWARE: V271
Comba Telecom Ltd.
CriticalPoint Public Safety
AMS

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This is an unpublished work the copyright in which vests in Comba International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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0.1 CONTENTS
Section Page
0.1 CONTENTS ....................................................................................................................................... 3
0.2 INDEX TO FIGURES AND TABLES ............................................................................................. 5
0.3 HISTORY ........................................................................................................................................... 6
0.4 GLOSSARY OF TERMS ................................................................................................................. 7
0.5 SAFETY NOTICES AND ADMONISHMENTS ............................................................................ 8
0.6 GENERAL INFORMATION .......................................................................................................... 9
1 EQUIPMENT DESCRIPTION ....................................................................................................... 10
1.1 EQUIPMENT BOCK DIAGRAM ................................................................................................... 10
1.2 EQUIPMENT LAYOUT .................................................................................................................. 11
1.3 EQUIPMENT CONSTITUTION .................................................................................................... 12
2 INSTALLATION .............................................................................................................................. 13
2.1 WARNINGS AND ALERTS ........................................................................................................... 13
2.2 SITE PLANNING CONSIDERATIONS ....................................................................................... 14
2.2.1 SITE PLANNING ............................................................................................................................ 14
2.2.2 INSTALLATION CHECKLIST ....................................................................................................... 15
2.3 INSTALLATION PROCEDURES ................................................................................................. 16
2.3.1 GOODS INWARDS INSPECTION .............................................................................................. 16
2.3.2 TOOLS ............................................................................................................................................. 16
2.3.3 PREPARATION .............................................................................................................................. 16
2.3.4 WALL MOUNTING ......................................................................................................................... 17
2.3.5 DRIP-LOOP ..................................................................................................................................... 17
2.4 EQUIPMENT CONNECTORS...................................................................................................... 18
2.4.1 AMS CONNECTORS ..................................................................................................................... 18
2.4.2 GROUNDING CONNECTION ...................................................................................................... 19
2.4.3 -48VDC POWER CABLE CONNECTION .................................................................................. 19
2.4.4 RF CABLE CONNECTION ........................................................................................................... 19
2.4.5 ETHERNET CONNECTION ......................................................................................................... 19
2.4.6 DRY CONTACT CABLE CONNECTION .................................................................................... 20
2.4.7 DRY CONTACT ALARMS ............................................................................................................ 21
3 AMS OMT GUI OVERVIEW ......................................................................................................... 22
3.1 AMS OMT GUI CONNECTION .................................................................................................... 22
3.2 OMT GUI INTRODUCTION .......................................................................................................... 23
3.2.1 [CURRENT ALARM] ...................................................................................................................... 24
3.2.2 [TAG MANAGER] ........................................................................................................................... 25
3.2.3 [STATUS] ......................................................................................................................................... 26
3.2.4 [ALARM LOG] ................................................................................................................................. 27
3.2.5 [TAG SCAN] .................................................................................................................................... 28
4 COMMISSIONING ......................................................................................................................... 29
4.1 PRE-COMMISSIONING TASKS .................................................................................................. 29
4.2 PRE-COMMISSIONING PROCEDURE ..................................................................................... 29
4.3 COMMISSIONING THE AMS EQUIPMENT .............................................................................. 30
4.4 TROUBLESHOOTING TIPS ......................................................................................................... 33

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4.4.1 TAGS & ALARMS .......................................................................................................................... 33
4.4.2 TAG SCAN FAIL ............................................................................................................................. 34
5 MAINTENANCE .............................................................................................................................. 35
6 APPENDICES ................................................................................................................................. 35
6.1 APPENDIX A: TOOLS ................................................................................................................... 35
6.2 APPENDIX B: TAG LIST ............................................................................................................... 36
6.3 APPENDIX C: ALARM LOG EXAMPLE ..................................................................................... 36
6.4 APPENDIX D: RMA (RETURN MATERIAL AUTHORIZATION) ............................................. 37

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0.2 INDEX TO FIGURES AND TABLES
Figure 1: Front, Side and Bottom Views of the AMS Enclosure .........................................................................9
Figure 2: AMS System Block Diagram ..............................................................................................................10
Figure 3: AMS External Layout .........................................................................................................................18
Figure 4: AMS Internal Component Diagram ....................................................................................................12
Figure 5: Mounting Rack Overview ...................................................................................................................10
Figure 6: AMS Connector Locations .................................................................................................................18
Figure 7: Dry Contact NO-NC Example ............................................................................................................21
Figure 8: AMS Dry Contact No-NC Layout .......................................................................................................21
Figure 9: Web GUI Main Screen - Login ...........................................................................................................22
Figure 10: Web GUI Main Screen .....................................................................................................................23
Figure 11: [Current Alarm] Screen ....................................................................................................................24
Figure 12: [Tag Manager] Screen .....................................................................................................................25
Figure 13: [Status] Screen ................................................................................................................................26
Figure 14: [Alarm Log] Screen ..........................................................................................................................27
Figure 15: [Tag Scan] Screen ...........................................................................................................................28
Figure 16: Commissioning Proceedure - Time Clock Editing ...........................................................................30
Figure 17: Commissioning Proceedure - Frequency & Power Editing .............................................................31
Figure 18: Commissioning Proceedure - Poll Editing .......................................................................................32
Figure 19: Example Tag Table ..........................................................................................................................33
Figure 20: Reset Screen ...................................................................................................................................34
Figure 21: Repair Device Notice Screen ...........................................................................................................34
Figure 22: Example Tag List .............................................................................................................................37
Figure 23: Example Alarm Log .........................................................................................................................37
Table 1: Equipment Connectors .......................................................................................................................18
Table 2: Power Cable Labeling .........................................................................................................................19
Table 3: Pin Definition of Dry Contact Cables ...................................................................................................20
Table 4: Commissioning Task Explanation .......................................................................................................29

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0.3 HISTORY
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This manual first created and issued in
June
20
22
.

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0.4 GLOSSARY OF TERMS
Abbreviation Definition
AHJ Authority Having Jurisdiction
AMS Antenna Monitoring System
BDA Bi-Directional Amplifier
DAS Distributed Antenna System
dB Decibel
dBm Decibels relative to 1 milliwatt
DL Downlink
DIM Digital Integrated Module
ESD Electrostatic Discharge
FS Frequency Selection
GUI Graphical User Interface
Hz Hertz
MCU Main Control Unit
MHz Megahertz
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
RFID Radio Frequency Identification
SMA Sub-Miniature A Connector
UL Uplink
VAC Volts Alternating Current
VDC Volts Direct Current
VSWR Voltage Standing Wave Ratio

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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, triangular, and are colored 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.
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 67.2cm 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:
Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with a minimum distance of 20cm between the radiator and your
body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter
End of Section

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0.6 GENERAL INFORMATION
The CriticalPoint Antenna Monitoring System (AMS) consists of a Main Control Unit (MCU) in conjunction with
an unlicensed 900MHz transceiver and Radio Frequency Identification (RFID) monitoring tags installed in the
Comba Distributed Antenna System (DAS) service antennas. The system utilizes RFID technology
incorporated into the DAS service antennas to monitor the coaxial link status of the entire passive network.
The AMS can report the status of any individual antenna link in real time via an easy-to-use GUI and transmit
the overall alarm information through Form C dry contacts. This system will satisfy the Authority Having
Jurisdiction (AHJ) requirements for monitoring service antennas as part of the overall System Component
Failure alarming requirements. The system can also increase the efficiency and accuracy of monitoring a
passive antenna system, as well as troubleshooting the passive network.
Main Features
 Monitor In-building DAS status in real time for all passive components, antenna coax, and Comba
service antennas
 Report overall status through dry contact alarming - login to identify alarms from individual antenna
paths
 Supports up to 25dB DAS cable loss
 Supports antenna monitoring of VHF, UHF & 700/800MHz bands
 Supports Form C dry contact alarms
 NEMA 4 enclosure
 Low Power Consumption
The following figure shows the enclosure of the Antenna Monitoring System (AMS).
Figure 1: Front, Side and Bottom Views of the AMS Enclosure

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1 EQUIPMENT DESCRIPTION
1.1 EQUIPMENT BOCK DIAGRAM
The AMS uses a diplexer to pass the Public Safety downlink/uplink (VHF/UHF/700/800) frequencies and
inject/extract the unlicensed 900MHz frequency to monitor the antenna RFID tags. The unlicensed 900MHz
frequency (user definable in the GUI) is pulsed from the AMS throughout the passive DAS network/antenna
arrays, the antennas tag information is then reflected to the AMS. The AMS cross-references the received tag
codes against a list of existing tag codes to see if any RFID tags are missing. The missing RFID tags will
create a log in the “Alarm Log” and trigger an alarm if the “Polling” parameters (configured by installer) are met
in Auto Mode or if “Status” scan is run in Manual Mode.
Figure 2: AMS System Block Diagram