Comba Telecom COMFLEX-6900 ComFlex Series Distributed Antenna System User Manual
Comba Telecom Ltd. ComFlex Series Distributed Antenna System
User manual
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| Document Description | User manual |
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| Date Submitted | 2018-05-03 00:00:00 |
| Date Available | 2018-05-03 00:00:00 |
| Creation Date | 2018-04-17 14:38:08 |
| Producing Software | Microsoft® Word 2010 |
| Document Lastmod | 2018-04-23 16:56:06 |
| Document Title | User manual |
| Document Creator | Microsoft® Word 2010 |
| Document Author: | D Shiu |
ComFlex-6900
DISTRIBUTED ANTENNA
SYSTEM
USER MANUAL
ComFlex-6900 QE: 1-0-0
Comba Telecom Ltd.
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This is an unpublished work the copyright in which vests in Comba International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 COMFLEX-6900
0.1 CONTENTS
Section
Page
0.1
CONTENTS .................................................................................................................................................... 3
0.2
INDEX TO FIGURES AND TABLES ................................................................................................................... 5
0.3
HISTORY ....................................................................................................................................................... 7
0.4
GLOSSARY OF TERMS.................................................................................................................................... 8
0.5
SAFETY NOTICES AND ADMONISHMENTS ..................................................................................................... 9
GENERAL INFORMATION ............................................................................................................................ 10
EQUIPMENT DESCRIPTION .......................................................................................................................... 12
2.1
SYSTEM DIAGRAM ...................................................................................................................................... 12
2.2
TYPICAL APPLICATION ................................................................................................................................ 12
2.3
EQUIPMENT CONSTITUTION ....................................................................................................................... 13
2.4
KIT OF PART ................................................................................................................................................ 14
INSTALLATION ............................................................................................................................................ 16
3.1
WARNINGS AND ALERTS ............................................................................................................................. 16
3.2
SITE PLANNING CONSIDERATIONS .............................................................................................................. 17
3.2.1
SITE PLANNING ...................................................................................................................................... 17
3.2.2
SYSTEM INSTALLATION CHECKLIST ......................................................................................................... 18
3.3
INSTALLATION PROCEDURES ...................................................................................................................... 18
3.3.1
GOODS INWARDS INSPECTION............................................................................................................... 18
3.3.2
TOOLS .................................................................................................................................................... 18
3.3.3
PREPARATION ........................................................................................................................................ 18
3.3.4
MU ASSEMBLING ................................................................................................................................... 19
3.3.5
MU IN 19” RACK MOUNTING ................................................................................................................. 20
3.3.6
RU WALL MOUNTING ............................................................................................................................. 23
3.3.7
POLE MOUNT INSTALLATION ................................................................................................................. 25
3.4
EQUIPMENT CONNECTORS ......................................................................................................................... 28
3.5
EQUIPMENT CONNECTION.......................................................................................................................... 30
3.5.1
GROUNDING CONNECTION .................................................................................................................... 30
3.5.2
MU GROUNDING CONNECTION ............................................................................................................. 30
3.5.3
RU GROUNDING CONNECTION............................................................................................................... 30
3.5.4
MU CONNECTIONS ................................................................................................................................. 31
3.5.5
RU CONNECTION .................................................................................................................................... 33
3.5.6
RU EXTERNAL ALARM CONNECTION ...................................................................................................... 35
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3.5.7
MU BTS ALARM CONNECTION................................................................................................................ 35
3.5.8
CONNECT TO PC ..................................................................................................................................... 36
COMMISSIONING ....................................................................................................................................... 37
4.1
PRE-COMMISSIONING TASKS...................................................................................................................... 37
4.2
LED INDICATORS ......................................................................................................................................... 37
4.3
DIGITAL DISPLAY INDICATORS .................................................................................................................... 38
4.3.1
DIGITAL DISPLAY ON RFU ....................................................................................................................... 38
4.3.2
DIGITAL DISPLAY ON FOU....................................................................................................................... 38
WEB GUI ..................................................................................................................................................... 40
5.1
WEB GUI CONNECTION ............................................................................................................................... 40
5.2
WEB GUI INTRODUCTION ........................................................................................................................... 41
5.2.1
[HOME] .................................................................................................................................................. 41
5.2.2
[AUTO SETUP] ........................................................................................................................................ 45
5.2.3
[FUNCTION]............................................................................................................................................ 45
5.3
COMMISSIONING PROCEDURE ................................................................................................................... 54
ALARMS AND TROUBLESHOOTING ............................................................................................................. 61
6.1
ALARMS ...................................................................................................................................................... 61
6.2
TROUBLESHOOTING ................................................................................................................................... 62
APPENDICES ............................................................................................................................................... 64
7.1
APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE .................................................................... 64
7.2
APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) ......................................................................... 65
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0.2 INDEX TO FIGURES AND TABLES
Figure 1: Master Unit (MU) ............................................................................................................................... 10
Figure 2: Remote Unit (RU) .............................................................................................................................. 11
Figure 3: System Diagram ................................................................................................................................ 12
Figure 4: Typical Application............................................................................................................................. 12
Figure 5: ComFlex Master Unit ......................................................................................................................... 19
Figure 6: RF Unit Installation ............................................................................................................................ 19
Figure 7: FOU Installation ................................................................................................................................. 20
Figure 8: PSU Installation ................................................................................................................................. 20
Figure 9: Mounting Rack ................................................................................................................................... 21
Figure 10: Angle Iron Installation ...................................................................................................................... 21
Figure 11: MU Installation ................................................................................................................................. 22
Figure 12: Secure the Enclosure ...................................................................................................................... 22
Figure 13: Finish Installaiton ............................................................................................................................. 23
Figure 14: Install Mounting Rack on the Wall ................................................................................................. 24
Figure 15: Hang RU onto the Mounting Rack.................................................................................................. 24
Figure 16: Tighten the Screws at the Bottom of RU ....................................................................................... 25
Figure 17: Mounting Rack of Pole Installation ................................................................................................. 26
Figure 18: Tighten the Mounting Rack ............................................................................................................. 26
Figure 19: Hang on RU ..................................................................................................................................... 27
Figure 20: Tighten the Screws at the Bottom of RU ....................................................................................... 27
Figure 21: Finish Installation ............................................................................................................................. 28
Figure 22: MU Front Panel Connectors ........................................................................................................... 28
Figure 23: MU Rear Panel Connectors ............................................................................................................ 29
Figure 24: MU Warning Lable ........................................................................................................................... 30
Figure 25: MU Grounding (MU Rear Panel) .................................................................................................... 30
Figure 26: RU Grounding .................................................................................................................................. 31
Figure 27: Fiber Optical and RF Port Connection ........................................................................................... 32
Figure 28: MU Power Connection (Rear Panel) .............................................................................................. 32
Figure 29: MU Power Connection (Rear Panel) .............................................................................................. 33
Figure 30: Tighten Optical Fiber Connection ................................................................................................... 33
Figure 31: Power Supply Connection............................................................................................................... 34
Figure 32: RU Fiber Optical and RF Port Connection ................................................................................... 34
Figure 33: Pins Allocation for “EXT_ALM” Port of RU ................................................................................... 35
Figure 34: Pins Allocation for “BTS_ALM” Port ............................................................................................... 35
Figure 35: RFU Digital Display ......................................................................................................................... 38
Figure 36: Optical Port No. and Digital Display ............................................................................................... 38
Figure 37: PC IP Address Setting .................................................................................................................... 40
Figure 38: Input IP Address .............................................................................................................................. 40
Figure 39: Input User Name and Password .................................................................................................... 41
Figure 40: Web GUI Main Screen .................................................................................................................... 41
Figure41: [Devices] Sceen ................................................................................................................................ 42
Figure42: MU Device - Monitoring Unit ............................................................................................................ 42
Figure43: MU Device - Optical Unit .................................................................................................................. 43
Figure44: MU Device - RF Unit......................................................................................................................... 43
Figure45: RU Device ......................................................................................................................................... 44
Figure46: RU Device– 700................................................................................................................................ 45
Figure 47: [Auto Setup] Screen ........................................................................................................................ 45
Figure 48: Function - Device Info. .................................................................................................................... 46
Figure 49: Function - Import&Export ................................................................................................................ 46
Figure 50: Function - Summary ........................................................................................................................ 47
Figure 51: Function - Comm. Setting (SNMP) ................................................................................................. 48
Figure 52: Function - IP Setting ........................................................................................................................ 48
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Figure 53: Function – License .......................................................................................................................... 49
Figure 54: Function - Scan................................................................................................................................ 49
Figure 55: Function –After Scan ....................................................................................................................... 50
Figure 56: Function - Device Remove.............................................................................................................. 50
Figure 57: Function - New Site Report ............................................................................................................. 51
Figure 58: Function - PA Reset ........................................................................................................................ 51
Figure 59: Function - Device Reset .................................................................................................................. 52
Figure 60: Function - Clear History Alarm ....................................................................................................... 52
Figure 61: Function - Firmware ........................................................................................................................ 53
Figure 62: Function –Alarm Log ....................................................................................................................... 53
Figure 63: Function –WebOMT Setting ........................................................................................................... 54
Figure 64: Commissioning Procedure - Start .................................................................................................. 54
Figure 65: Commissioning Procedure - Device Scan ..................................................................................... 55
Figure 66: Commissioning Procedure - Params Setting ................................................................................ 55
Figure 67: Flow to select ................................................................................................................................... 56
Figure 68: Flow to select ................................................................................................................................... 57
Figure 69: Commissioning Procedure - Automatic Calibration ...................................................................... 58
Figure 70: Commissioning Procedure - Calibration Finish ............................................................................. 58
Figure 71: Commissioning Procedure - MU Setup.......................................................................................... 59
Figure 72: Commissioning Procedure - RU Setup .......................................................................................... 59
Table 1: MU Components ................................................................................................................................. 13
Table 2: RU Components.................................................................................................................................. 13
Table 3: Master Unit (MU) KOP........................................................................................................................ 14
Table 4: Remote Unit (RU) KOP ...................................................................................................................... 15
Table 5: MU Connections.................................................................................................................................. 29
Table 6: Pin Definition of “BTS_ALM” Port ...................................................................................................... 35
Table 7: MU LED Indications ............................................................................................................................ 37
Table 8: RU LED Indications ............................................................................................................................ 37
Table 9: RFU Digital Display ............................................................................................................................. 38
Table 10: FOU Digital Display .......................................................................................................................... 39
Table 11: Import/Export Parameters ................................................................................................................ 47
Table 12: MU Alarm List .................................................................................................................................... 61
Table 13: RU Alarm List .................................................................................................................................... 62
Table 14: MU Alarms Diagnosis ....................................................................................................................... 62
Table 15: RU Alarms Diagnosis ....................................................................................................................... 63
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0.3 HISTORY
Change No.
ENU
Details Of Change
1-0-0
This user manual first created in February 2018.
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0.4 GLOSSARY OF TERMS
ALC
Automatic Level Control
ATT
BDA
Attenuation
Bi-direction Amplifier
BS
Base Station
BTS
DL
Base Transceiver Station
Downlink
DT
FOU
GUI
Donor Terminal
Fiber Optical Unit
Graphic User Interface
ID
LNA
Identification
Low Noise Amplifier
MCU
Main Control Unit
MT
MTBF
Mobile Terminal
Mean Time Between Failures
MU
Master Unit
NC
Normally Closed
NF
NO
Noise Figure
Normally Open
OMC
OMT
OP
Operation & Maintenance Center
Operation & Maintenance Terminal
Optical Fiber
OPEX
PA
PIM
OperatingExpense
Power Amplifier
PLL
POI
PSU
RF
RFU
RU
SMA
TX/RX
UL
VAC
VSWR
WCDMA
Passive Inter Modulation
Phase Locked Loop
Point of Interconnects
Power Supply Unit
Radio Frequency
Radio Frequency Unit
Remote Unit
Sub-Miniature “A” Connector
Transmit/Receive
Uplink
Volts Alternating Current
Voltage Standing Wave Ratio
Wideband Code Division Multiple Access
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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.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the product.
NOTE: 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.
To comply with FCC RF exposure compliance requirements, each individual antenna used for this
transmitter must be installed to provide a separation distance greater than 2.3763 meter or more from all
persons during normal operation and must not be co-located with any other antenna for meeting RF
exposure requirements.
WARNING! This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and
QUALIFIED INSTALLERS. You MUST have and FCC LICENSE or express consent of an FCC License
to operate this device. Unauthorized use may result in signification forfeiture penalties, including penalties
in excess of $100,000 for each continuing violation.
NOTE: A readily accessible disconnect device shall be incorporated external to the equipment.
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 fines.
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1 GENERAL INFORMATION
The ComFlex-6900 Distributed Antenna System (hereinafter called “ComFlex”) consists of Master Unit
(MU) and Remote Unit (RU). The MU includes the MU Chassis, Power Supply Unit (PSU), Fiber Optical
Unit (FOU) and RF Unit (RFU). With a modular design, it can support up to 8 independent RF inputs and
8 Remote Units. The Remote Unit is a module design which supports 4 independent bands, 2300MHz,
2300MIMO, 2500MHz and 2500MIMO band.
The low signal transmission loss of optical fiber is applicable for long distance transmission. ComFlex can
support the optical transmission of up to 6.5dBo optical loss, equivalent to 8 miles fiber length.
Main feature:
Modularized Master Unit supports flexible field upgrade and maintenance.
Independent gain control for each RF source.
High MTBF and low noise design with modular PSU and convection cooling.
RF module supports both simplex and duplex.
Supports multi-operator and mix mode application.
Optical link auto gain control.
Web based GUI for intelligent commissioning and configuration.
The figures below show the ComFlex Master and Remote unit enclosure.
Figure 1: Master Unit (MU)
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Figure 2: Remote Unit (RU)
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2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
Distributed
Optical Fiber
Antenna
System
MU
RU
MIMO Antenna
System
MIMO Optical Fiber
Figure 3: System Diagram
On the DL, signals from the BTSs or BDA are converted into optical signals after amplification in the
MU.Then the optical signals are transmitted to the RU via optical fiber. The Optical TX/RX Module of RU
converts the DL optical signals into RF signals. After amplification, the signals are transmitted from RU
ANT port to the service antenna using 50Ohm coaxial cable.
On the UL, the signals transmitted by the mobile are converted into optical signals, and then via the UL
optical fiber, the signals are transmitted to MU, which then converts the optical signals back to RF signals
and send to BTS or BDA via 50Ohm coaxial cable.
2.2 TYPICAL APPLICATION
Shown below are the typical SISO and MIMO applications of MU and RUs.
ANT
MIMO
2300MHz
ANT
ANT
MIMO
MIMO
ANT
MIMO
MIMO
MIMO
2500MHz
Figure 4: Typical Application
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2.3 EQUIPMENT CONSTITUTION
MU consists of the following parts:
Table 1: MU Components
Module
MU01-RACK
MU01-PSU
MU01-FOU
MU01-RFU
Description
Master Unit Chassis includes eight slots for RF Unit, two slots for Fiber Optical Unit,
and one slot for Power Supply Unit.
iDAS Master Unit Power Supply Unit (PSU) converts the input voltage into stable
DC to supply power for other modules of Master Unit.
Master Unit Fiber Optical Unit (FOU) completes optical signal and RF signal
conversion. One FOU has four optical ports, which means each FOU can support
up to four RUs.
Master Unit RF Unit completes separation and combination of uplink and downlink
signal with independent gain control, supports either simplex or duplex.
RU consists of the following parts:
Table 2: RU Components
Module
HRU01-6900
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Description
Remote Unit; A module design which supports 4 bands, including 2300MHz,
2300MIMO, 2500MHz, 2500MIMO.
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2.4 KIT OF PART
Table 3: Master Unit (MU) KOP
Item
Qty
MU Chassis
RF Unit (RFU)
1~8
Fiber Optical Unit (FOU)
1~2
Optical Extention Unit
Power Supply Unit (PSU)
Power Supply Cable
(13 Feet 1 inch)
Communication Cable
Right Angle Bracket
(for MU 19“rack mounting)
Left Angle Bracket
(for MU 19“ rack mounting)
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Table 4: Remote Unit (RU) KOP
Item
Qty
Remote Unit
Mounting Bracket (used for both pole and wall
installations)
Nuts M8, Spring Washers Φ8, Plain Washers Φ8 (used
for securing Remote Unit when hanged on bracket
protrusions)
pieces
each
Masonry Bolt (set) M10x110 – used for wall mount
installations
Hose Clamp (Φ30-Φ125) - used for pole mount
installations (2 per bracket)
OptiTap Optical Fiber
Power Supply Cable (AC)
Copper Grounding Wire (2m)
RJ45 Ethernet Communication Cable
Key – used for opening unit panels for access to
internal components.
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3 INSTALLATION
3.1 WARNINGS AND ALERTS
Laser
Laser light can cause damage to eyes. Laser light is not visible. Viewing it directly does not cause pain.
The iris of the eye will not close when viewing a bright light. Consequently, serious damage to the retina
of the eye is possible. NEVER LOOK INTO THE END OF A FIBER WHICH MAY HAVE A LASER
COUPLED TO IT.
Radio Frequency Energies
There may be situations, particularly for workplace environments near high-powered RF sources, where
recommended limits for safe exposure of human beings to RF energy could be exceeded. In such cases,
restrictive measures or actions may be necessary to ensure the safe use of RF energy.
High Voltage
The equipment has been designed and constructed to prevent practicable danger, as far as reasonably
possible. Any work activity on or near equipment involving installation, operation or maintenance must be
free from danger, as far as reasonably possible.
Where there is a risk of damage to electrical systems involving adverse weather, extreme temperatures,
wet, corrosive or dirty conditions, flammable or explosive atmospheres, the system must be suitably
installed to prevent danger.
Protective Earthing
Equipment provided for the purpose of protecting individuals from electrical risk must be suitable for the
purpose and properly maintained and used.
Handling Precautions
This covers a range of activities including lifting, lowering, pushing, pulling, carrying, moving, holding or
restraining an object or person. It also covers activities that require the use of force or effort, such as
pulling a lever, or operating power tools.
Electrostatic Discharge (ESD)
Observe standard precautions for handling ESD-sensitive devices. Assume that all solid-state electronic
devices are ESD-sensitive. Ensure the use of a grounded wrist strap or equivalent while working with
ESD-sensitive devices. Transport, store, and handle ESD-sensitive devices in static-safe environments.
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3.2 SITE PLANNING CONSIDERATIONS
3.2.1 SITE PLANNING
Site Considerations
The MU is designed to be located indoors to facilitate coupling of BTS signals and power supply
connections. The input range of MU RF unit is 10~30 dBm.
The site consideration for RU is listed below:
The distance between the service antenna of RU and coverage area should satisfy line of sight
requirements for maximum coverage area.
The maximum fiber length is 8 miles, with a maximum path loss of 6.5dBo.
The system delay of the optical system must be taken into consideration when there are neighboring
BTS sites overlapping in coverage.
Installation Location
Mounting surface shall be capable of supporting the weight of the equipment.
In order to avoid electromagnetic interference, a proper mounting location must be selected to minimize
interference from electromagnetic sources such as large electrical equipment.
Environmental
Humidity has an adverse effect on the reliability of the equipment. It is recommended to install the
equipment in locations having stable temperature and unrestricted air-flow.
The installation location for the system should be well ventilated. The equipment has been designed to
operate at the temperature range and humidity level as stated in the product specifications.
Powering
The power supply unit (PSU) provides power to all modules within the equipment. Depending on the
product variant, it is recommended that the PSU operates on a dedicated AC circuit breaker or fused
circuit.
Grounding Requirement
Verify that the equipment has been well grounded. This includes antennas and all cables connected to
the system. Ensure lightning protection for the antennas is properly grounded.
Cable Routing
Depending on equipment configuration, a variety of types of cables are connected to the MU and RU:
coaxial cables, optical fibers, power cable, communication cable, and commissioning cable. Where
applicable, ensure cables are properly routed and secured so that they are not damaged.
Manual Handling
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During transportation and installation, take necessary handling precautions to avoid potential physical
injury to the installation personnel and the equipment.
3.2.2 SYSTEM INSTALLATION CHECKLIST
Working space available for installation and maintenance for each mounting arrangement. Ensure
unrestricted airflow.
Ensure earthing point is within reach of the ground wire. (2m; 6 ft. 10 in.).
Ensure a power source is within reach of the power cord and the power source has sufficient
capacity.
Where appropriate, ensure unused RF connectors are terminated.
Where appropriate, ensure unused optical fiber connectors are protected.
Do not locate the equipment near large transformers or motors that may cause electromagnetic
interference.
Reduce signal loss in feeder cable by minimizing the length and number of RF connections.
Ensure the equipment will be operated within the stated environment (refer to datasheet).
Where needed, couple BTS RF signal with a coupler to prevent damaging the equipment.
Where appropriate, confirm available of suitably terminated grade of RF and optical fiber.
Observe handling of all cables to prevent damage.
3.3 INSTALLATION PROCEDURES
3.3.1 GOODS INWARDS INSPECTION
ComFlex was factory tested, inspected, packed, and delivered to the carrier with utmost care. Do not
accept shipment from carrier which shows damage or shortage until the carrier’s agent endorses a
statement of the irregularity on the face of the carrier’s receipt. Without documentary evidence, a claim
cannot be processed.
Open and check each package against the packing list. For any shortage, contact Comba Telecom
Systems. Do not remove items from packing materials until installation.
3.3.2 TOOLS
See Appendix A for a full list of tools required for installation and maintenance.
3.3.3 PREPARATION
Optical Fiber:
Fiber optic cables require proper handling. Do not stretch, puncture, or crush the fiber cable(s) with
staples, heavy equipment, doors, etc.
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Always maintain the minimum bending radius specified by the cable manufacturer. The minimum
bend radius is usually 10 times the cable’s outer diameter. In the case of single optical fiber that is
not in a cable, the minimum bending radius to be observed is 3cm. (1.2”) .
3.3.4 MU ASSEMBLING
ComFlex Master Unit consists of 4 parts: Chassis, RFU, FOU and PSU. All the units are packed
separately. Follow the steps below to assemble.
Figure 5: ComFlex Master Unit
Step1: RF Unit installation: Remove RFU slot cover plate on Chassis, insert RFU and fasten the screws.
(Each Unit can be installed in any one of eight RFU slots)
Figure 6: RF Unit Installation
Step2: FOU installation: Remove FOU slot cover plate on Chassis, insert FOU and fasten the screws.
(Each Unit can be installed in either one of two FOU slots)
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Figure 7: FOU Installation
Step3: PSU installation: Remove PSU slot cover plate on the right side of Chassis, insert PSU and fasten
the screws.
Figure 8: PSU Installation
3.3.5 MU IN 19” RACK MOUNTING
MU is an indoor type device; the installation procedures are shown as below:
Step 1: Install right angle bracket and left angle bracket on back of the mounting rack. (Rack nuts and
screws are not provided.) Use rack nuts and screws as recommended by rack manufacturer.
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Figure 9: Mounting Rack
Figure 10: Angle Iron Installation
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Step2: Slide the MU on to the angle brackets and confirm it is level.
Figure 11: MU Installation
Step 3: Attach the MU onto the rack with the recommended rack screws.
Figure 12: Secure the Enclosure
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Step 4: Finish installation.
Figure 13: Finish Installaiton
3.3.6 RU WALL MOUNTING
RU wall mounting steps are shown below.
Step 1: Select the wall mount location according to the following criteria:
General surroundings
Ventilated and easy-to-reach area (for maintenance and on-site inspection)
Proximity to DAS antenna in order to minimize cable loss
Step 2: Using the mounting bracket top and bottom mounting holes as a guide
Measure and mark the location for drilling the (supplied) M10 Masonry bolts (Φ12) in the
wall (6 per bracket and drill the holes).
Using an electric drill with a Φ12 head, drill the holes for the Masonry Bolts.
NOTE: The ComFlex remote unit is mounted vertically with the connectors facing downwards.
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Step 3: Using 6 (M10x110) Masonry bolts per bracket – secure the Mounting Brackets to the wall with the
protruding M8 nuts facing towards you. The remote unit will be hung on these.
Figure 14: Install Mounting Rack on the Wall
Step 4: Connectors facing down carefully fit and hang the GX unit on to the M10 bolts protruding from the
top, middle and bottom parts of the mounting bracket.
Figure 15: Hang RU onto the Mounting Rack
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Step 5: Using a spanner or wrench, tighten the two (2) M8 nuts on the top and bottom of the mounting
bracket as shown below.
Figure 16: Tighten the Screws at the Bottom of RU
Step 6: Check enclosure position and verify that unit is mounted securely to the wall.
3.3.7 Pole Mount Installation
Step 1: Select the appropriate location according to the following criteria:
Accessibility
Antenna location and distance
Proximity to the antenna in order to minimize cable loss
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Step 2: Secure the mounting bracket by slipping the 5 hose clamps (provided) through the mounting
bracket and tighten securely.
Figure 17: Mounting Rack of Pole Installation
Figure 18: Tighten the Mounting Rack
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Step 3: Connectors facing downwards hook the GX-Quad on to the top part of the bracket and then to the
bottom.
Figure 19: Hang on RU
Step 4: Using a spanner or wrench, tighten the two (2) M8 nuts on the top and bottom of the mounting
bracket as shown below.
Figure 20: Tighten the Screws at the Bottom of RU
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Figure 21: Finish Installation
3.4 EQUIPMENT CONNECTORS
The figures below present the connectors of ComFlex MU.
Figure 22: MU Front Panel Connectors
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10
11
12
13
14
Figure 23: MU Rear Panel Connectors
Table 5: MU Connections
Identifier
1. OP1~OP4
2. LED indicator
3. BTS_ALM
4. OMT
5. LAN
6. TX/RX
7. RX
8.
9.
10. FOU
11. AUX
12. 28 GND
13. UL1,DL1; UL2,DL2;
UL3,DL3
14. AC100~240V
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Functional Description
SC/APC optical fiber access port
LED indicator. See Chapter 4 for the description of each indicator.
DB9-F connector for BTS alarm.
RJ45 connector connects PC with equipment for local and remote
monitoring.
Reserved RJ45 port for remote monitoring.
RF access port, Mini Din connector.
RF access port, Mini Din connector.
Digital display tube. See chapter 4 for the detailed description.
Grounding connector.
Communication port with extension optical unit.
Reserved interface for source calibration unit.
Provide 28V power supply for extension units (FOU and source calibration
unit).
Reserved for RF interface of extended FOU and single soure calibration
unit.
AC power supply connector.
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3.5 EQUIPMENT CONNECTION
3.5.1 GROUNDING CONNECTION
WARNING!
This unit must always be grounded. Consult an appropriate electrical
inspection authority or an electrician if you are uncertain that suitable
grounding is available.
Do not connect power before grounding.
Figure 24: MU Warning Lable
3.5.2 MU GROUNDING CONNECTION
Step 1: Connect the GND cable to the GND connector and the building EARTH. Recommended GND
cable size is # 12 AWG.
Step 2: Ensure the GND cable is connected to building GND.
Grounding Connector
Figure 25: MU Grounding (MU Rear Panel)
3.5.3 RU GROUNDING CONNECTION
Step 1: Connect one side of the supplied copper wire GND cable to right side of RU with two M6×10
hexagon Screws (screws are provided). Connect the other side of the supplied copper wire GND cable to
the building EARTH with two M6 screws (screws are not provided).
Step 2: Connect one side of the supplied copper wire GND cable to RU with two M6×10 hexagon Screws
(screws are provided). Connect the other side of the supplied copper wire GND cable to the building
EARTH with two M6 screws (screws are not provided).
Step 3: Ensure all GND cables are well grounded to building GND.
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Figure 26: RU Grounding
3.5.4 MU CONNECTIONS
Step1: Connect the MU OP (optical) port to one of the RU OP port. (NOTE: requires Single Mode fiber
with SC/APC connectors; MAXIMUM OPTICAL LOSS = 6.5dBo)
Step 2: For duplex application, connect the MU RFU TX/RX port to the RF Source (BTS or BDA). For
simplex application, connect the MU RFU TX/RX port to the RF Source downlink, and then connect MU
RFU RX port with RF Source uplink. (NOTE: RF cable must be mini-DIN Male on the MU side)
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Local commissioning &
Remote monitoring port
Fiber optic port
LED
indicator
BTS Alarm
Reserved
RF port, to BTS
Figure 27: Fiber Optical and RF Port Connection
Step 3: Connect the power cable to the power supply port (100-240VAC, 1Amp maximum).
Power Connection
Figure 28: MU Power Connection (Rear Panel)
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3.5.5 RU CONNECTION
Step 1: Connect the OptiTap optical fiber to RU OP (optic) port and one of the OP port located on MU
FOU front panel.
Figure 29: MU Power Connection (Rear Panel)
Step 2: Rotation outer shell to tighten the fiber conncetion.
Figure 30: Tighten Optical Fiber Connection
Step 3: Connect ANT port to a broadband antenna using 50Ohm coaxial cabel.
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Step 4: Connect power cable on PSU with the public power grid (110~220VAC, 14Amp maximum).
Figure 31: Power Supply Connection
MU Port
Figure 32: RU Fiber Optical and RF Port Connection
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3.5.6 RU EXTERNAL ALARM CONNECTION
For RU external alarm, there is an 8-pin waterproof connector. The following figure and table show the pin
allocation and definition. Pin numbering are shown looking-into the connector on the enclosure.
Figure 33: Pins Allocation for “EXT_ALM” Port of RU
3.5.7 MU BTS ALARM CONNECTION
The equipment alarms can be signaled to the BTS via voltage-free relay contacts. The voltage-free relay
connections are connected to the DB-9 port “BTS_ALAM” located on the MU. The following figure and
table show the pin allocation and definition.
BTS_OPEN
BTS_ COM
BTS_CLOSE
Figure 34: Pins Allocation for “BTS_ALM” Port
Table 6: Pin Definition of “BTS_ALM” Port
Pin Number
4~9
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Definition
BTS_OPEN
BTS_COM
BTS_CLOSE
NC
Description
Connects to the open terminal of the voltage free relay.
Connects to the common terminal of the voltage free relay.
Connects to the close terminal of the voltage free relay.
Reserved.
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3.5.8 CONNECT TO PC
The local commissioning and management for MU and RU is achieved through connecting to the WEB
base GUI.
Connect MU to PC
Connect MU “OMT” port (RJ45) to the RJ45 port of PC with supplied Ethernet cable to achieve local
monitoring and management.
End of Section
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4 COMMISSIONING
4.1 PRE-COMMISSIONING TASKS
After equipment installation, perform the following steps before equipment powering and commissioning,
check that the expected voltage, current, and power levels do not violate any ratings. Double check all
connections including ground before applying power. Do not manipulate circuits or make changes when
power is applied:
Visually inspect the power connection within the equipment. Ensure that all cables are correctly and
securely connected, including power cables, grounding wires, RF cables and optical cables.
Check grounding connection and verify that the ground resistance is less than 5Ω.
Connect the equipment to the PC.
Power on MU and RU.
Monitor the initialization of the MU and RU though the LEDs on the panel. Refer to detailed LEDs
information in the next section.
4.2
LED INDICATORS
Diagnostic LEDs are located on the MU front panel and RU bottorm panel; each indicates the status of a
particular function:
Table 7: MU LED Indications
LED Indicator
Normal Status
PWR
Steady green
RUN
Flashing green
(1 time/sec)
ALM
OFF
OP
Steady green
Indication
Power indicator. If LED is off, it indicates the system has
no power.
MU operation indicator. After initialization (1~2 minutes),
the LED should flash at once per sec. (When upgrade
firmware, LED will flash rapidly)
Alarm indicator. If LED is RED, there is an alarm.
Located on Fiber Optical Unit (FOU), it is an indicator for
receive optical power. If LED is off, it indicates the
receiving optical power is less than -10dBm.
Table 8: RU LED Indications
LED Indicator
Normal Status
COMM.
Blinking green
(1 time/sec)
RUN
Off
ALM
LED Indicator
Off
Normal Status
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Indication
BLINKING GREEN - Flashes (rate of flash per second)
for the duration of 1 minute upon communication
initialization
RAPID/NO FLASH - Indicates communication fault
OFF – Normal operation
RED - Fault
Alarm indicator. If LED is RED, there is an alarm.
Indication
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4.3 DIGITAL DISPLAY INDICATORS
4.3.1 DIGITAL DISPLAY ON RFU
The digital display tube on RFU shows the DL input power. The range of DL input power shown on the
display tube is from -19 to 33 (dBm), when DL input power is lower than -19dBm, it will show L, when DL
input power is higher than 33, it will display H.
Figure 35: RFU Digital Display
Table 9: RFU Digital Display
Figure
DL Input Power Level
-19~33
< -19dBm
-19~33dBm
> 33dBm
4.3.2 DIGITAL DISPLAY ON FOU
The digital display tube on optical module has two digits.
The first digit will display A, b, C and d which presents the No. of optical port. Refer to below figure for the
relationship.
The second digit will display the optical loss of each port. See the following table for the relationship of
figure and optical loss.
Figure 36: Optical Port No. and Digital Display
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Table 10: FOU Digital Display
Figure
0~9
Optical Loss
0~9dBo
> 9dBo
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5 WEB GUI
ComFlex can be monitored and controlled by WEB GUI, follow below contents to achive system
parameter setting and commissioning.
5.1
WEB GUI CONNECTION
Step 1: Connect MU OMT port to PC RJ45 port with the supplied Ethernet cable to set up a physical
connection.
Step 2: Go to laptop Control Panel\Network and Internet\Local Area Connection. Right click it and click
Properties. Then follow the steps shown in figure below.
Figure 37: PC IP Address Setting
Step 3: Open browser (browser IE7.0, IE8.0, Chrome or Firefox, suggest disply resolution is 1024×768),
input Web GUI IP address: 192.168.8.101, click [Enter].
Figure 38: Input IP Address
Step 2: Input User Name: admin; Password (default password: admin). Click [Log in].
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Figure 39: Input User Name and Password
5.2
WEB GUI INTRODUCTION
After login, the Web GUI main screen will appear.
Figure 40: Web GUI Main Screen
On Comba Web GUI Home page, there are four Menu bars:
[Home], [Auto Setup], [Functions].
5.2.1
[HOME]
The [Home] page shows the actual connection diagram of MU and RU.
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Click here for FOU
main management
page.
Click here for RFU
main management
page.
Click here for MU
main management
page.
Click here for RU
main management
page.
Link FOU
port number
Figure41: [Devices] Sceen
MU Main Management Screen
This part shows
MU alarm status.
Click here to
enable/disable alarm
information.
Figure42: MU Device - Monitoring Unit
Optical Unit Management Screen
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This switch for
HRU01-6900 is
OFF.
This part shows
MU alarm status.
Optical loss between
MU to RU.The value is
over 15dB when MU to
Ru are not connected
well.
Optical power alarm.The
indicators whill be red if the
received optical power is less
than -10dBm.
Figure43: MU Device - Optical Unit
Note: MU transmit optical power is -4~-2dBm.
RF Unit Management Screen
Band and Remark
information
RF parameter
Commissioning
status
Downlink input
power overdrive
alarm
Click here to ON/OFF RF switch
and modify attenuator
Slot number
Figure44: MU Device - RF Unit
Remote Unit Management Screen
Click RU photo, users can visit RU directly. Make sure two steps are done before visit RU:
RU and MU are connected by optical fiber.
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RU device scanning is done. Note: Go to [Commissioning] page or [Management] page for device
scanning.
Select band to
check relative and
information.
Band
information
table
RU common
information table
Figure45: RU Device
NOTE: There are three statuses for PA Service: Normal, Recovery and Shutdown. If PA output power
or reflected power exceeds the threshold (32dBm for LRU, 39dBm for MRU), software will trigger
Recovery:
It will reset PA and then re-detect the PA output power and reflected power, if they are normal, the PA
Service Status will turn to Normal, if PA output power or reflected power is still over the threshold, PA
Service Status will turn to Recovery again.
If PA output power or reflected power is still over the threshold after six times of PA Recovery, PA
Service status will be Shutdown which will need to be reset manually.Reset at Management > PA
Reset.
Click on a specific band on the left side of RU Device page, the corresponding band information will show.
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RF parameter
setting table
Alarm information
and configuration
table.
Figure46: RU Device– 700
5.2.2
[AUTO SETUP]
A work flow of the commissioning process is shown on [Auto Setup] page. Click the [Start] button, the
software will guide you through the commissioning step by step. For details, please refer to chapter 5.3.
Figure 47: [Auto Setup] Screen
5.2.3
[FUNCTION]
Other parameters can be configured on [Function] page.
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There are fifteen function bars list in the left side of the [Mangement] page. Below figures are the
introduction of each function bar.
Devic Info.
Select device
Figure 48: Function - Device Info.
Note: Users can input maximum 30 bytes characters in Device Info.
Import&Export
select a device, the
device information will
show
Parameter configurations
can be input and output in
this page
Figure 49: Function - Import&Export
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Below table list the parameters that can be import/export:
Table 11: Import/Export Parameters
Device
MU
Paremeter
Alarm Enable
ATT value
RF Switch
SNMP parameter
Device
RU
Parameter
Alarm Enable
ATT value
RF Switch
Over temperature alarm threshold
DL over output power threshold
External Alarm level
Import and Export can help users quickly configure MU and RU parameters. For example, if one MU/RU
finished configuration, users can export its parameters and save as a file in PC, and then import this file to
other MU/RU to fast finish the MU/RU parameter setting.
Summary
Step1：select a device
Step2：Click Create key
Figure 50: Function - Summary
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Comm. Setting
Choose a way
Figure 51: Function - Comm. Setting (SNMP)
IP Setting
Configure MU IP address
for remote monitoring of
MU
Figure 52: Function - IP Setting
Note: For remote monitoring, the IP Address must be set correctly according to the location IP of remote
connection. If there is more than one equipment is connected to the public network through the same
router, the router’s local IP CANNOT be set as 192.168.8.*.
License
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Step1：select a device.
Step3：click set.
Step2：enter the
license code.
Figure 53: Function – License
Scan
Click scan.
Figure 54: Function - Scan
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Figure 55: Function –After Scan
Device Remove
Step1：select a device.
Step2：click
Remove key.
Figure 56: Function - Device Remove
Note: If the RU has been scanned and identified by MU, to remove the RU from the system,users must
remove this RU on this [Remove] page, otherwise, RU will still be shown on the Home page and will
trigger optical alarm.
New Site Report
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Step1：select a device.
Step2：click to Report .
Figure 57: Function - New Site Report
PA Reset
Step1：select a device.
Step2：select PA of
the corresponding
frequency band resets.
Figure 58: Function - PA Reset
Note:PA will be turned off by software when PA output power or (VSWR) reflected power is exceed the
threshold. Users need to reset PA after debugging.
Device Reset
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Step1：select a
device.
Step2：click
Reset key.
Figure 59: Function - Device Reset
Note: Device Resetprocess will last about 2~4 minutes. For MU monitor reset, users need to re-login
WEB GUI.
Clear History Alarm
Step1：select a
device.
Step2：clear all
histoty alarms.
Figure 60: Function - Clear History Alarm
Firmware
There are three functions on the [Firmware] bar: [Monitoring Upgrade], [Swap] and [Module Upgrade].
[Monitoring Upgrade] is used to upgrade software. [Swap] is to replace current firmware version to the
previous one. [Module Upgrade] is used to upgrade module software.
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Step1：select a
device.
Step3：click to
upgrade software.
Step2：click to select
software that to be updated.
Figure 61: Function - Firmware
Alarm Log
Step1：select a device.
Query device alarm
log.
Export device alarm
log.
Figure 62: Function –Alarm Log
WebOMT Setting
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Figure 63: Function –WebOMT Setting
5.3
COMMISSIONING PROCEDURE
To complete the installation and commissioning, users need to follow the steps below.
Step 1: Click Menu bar [Auto Setup] on home page, a work flow will show up.
Figure 64: Commissioning Procedure - Start
Step 2: Click
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to start RU device scan, this step will take about 1 minute.
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Figure 65: Commissioning Procedure - Device Scan
Step 3: Click
to enter to Params Setting page. Click
information and system time.
, users can set the device
Figure 66: Commissioning Procedure - Params Setting
Dev Info mainly used to record device location and Date/Time provid a time reference. Mouse clicks the
Config Value of Date/Time to auto receive the computer time.
Step 4: Click
to enter to the page to select folw to continue. There are three flows to select:
Calibration, Setup and Finish.
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Figure 67: Flow to select
Note: Calibration is to adjust MU and RU gain to make sure system gain is normal, if the band have been
calibrated, users can click
to skip the process; if the band never been calibrated, users click
in the step of Calibration, software can still procede to the next step of MU and RU setup, but the
system gain will be a little deviation with normal valuer, so the final output power will be not same with the
target DL output power.
NOTE: Make sure all the ANT ports of RUs are connected with dummy load or antenna system
before proceeding to step 5.
Step 5: Select Calibration and click
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to enter to Calibratiion page after finishing Parems Setting.
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Figure 68: Flow to select
Automatic calibration no needs to select frequency band, the system will calibration all the
band automatically.
If users choose Manual calibration, then go to next page to select frequency band to
calibrate.
Note: Make sure the ANT port of RU is connected with dummy load or antennas before Calibration.
Several RU can be calibrated simultaneously.
Automatic calibration
Select “Automatic Calibration”, and click OK to goto calibration process. The process will last 1-5 minites
according to the MU and RU quantities and band quantity.
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Figure 69: Commissioning Procedure - Automatic Calibration
After calibration, the status of calibration will change “Success” from ”Not Done”, the colour change from
yellow to green at the same time.
Finishing calibration, then user can go to setup flow.
Figure 70: Commissioning Procedure - Calibration Finish
Step 6: Click
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to enter to MU Setup page after finishing Calibration.
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Figure 71: Commissioning Procedure - MU Setup
Step 7: Click
to enter to RU Setup page after finishing MU setup.
Figure 72: Commissioning Procedure - RU Setup
Two parameters need to be set in this step.
RF Switch: Set the RF switch status of Remote Unit.
Target DL Output Power: Expected DL output power setting. Note: Rated output power of ComFlex
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Step 8: Click
to enter to [Finish] page after finishing RU setup.
Note:
As the system calibration process is calibrated for single channel, so if there is more than one same band
input, because of the power superposition, the band total output power will higer than target DL output
power after the calibration is complete.
The calibration work is mainly to set device to reach it’s theoretical gain, so when there are two or more
same bands access into and they have the same input power level, each channel will reach it’s rated
power, so the total output power will be (input A+gain) + (inputB+gain)+…+(inputN+gain). For example, if
there are two 1900MHz bands acess to MU, each has 10dBm input power, the total output power of RU
1900MHz will be 30dBm+30dBm=33dBm.
Refer to the method below for the gain adjustment:
Suppose a band with N independent inputs, each input signal power are all X dBm. Apparently, there
exists the following relationship between input and output after finished auto communication on WEB GUI:
X dBm + Gain = 30dBm, then the total output power for N channels access is X dBm + Gain + 10*Log(N)
= 30 + 10*Log(N), so Users need to set 10*Log(N) RFU ATT on WEB GUI for each channel.
End of Section
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6 ALARMS AND TROUBLESHOOTING
6.1 ALARMS
Table 12: MU Alarm List
Alarm List
Alarm Condition
Over-Temperature
Alarm
Optical Tx Alarm
Optical Rx Alarm
DL Input Power
Overload Alarm
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Alarm when equipment temperature is higher than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold : 80℃ by default.
Alarm when Optical Transmiting power is lower than the threshold,
otherwise normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: -7dBm by default.
Alarm when Optical received power is lower than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: -10dBm by default.
Alarm when DL input power is higher than the threshold, otherwise normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: 32dBm by default.
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Table 13: RU Alarm List
Alarm List
Alarm Condition
External Alarm
Over-Temperature
Alarm
Optical Tx Alarm
Optical Rx Alarm
PA Alarm
DL Output
Overload Alarm
Shutdown Alarm
LNA Alarm
Alarm status when the external terminals have the same H/L level with alarm
level, otherwise normal;
Alarm period: 10s by default.
Alarm when equipment temperature is higher than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold : 80℃ by default.
Alarm When optical transmiting power is lower than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: 0dBm by default.
Alarm When optical receiving power is lower than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: -14dBm by default.
Alarm when any one of the PA Current Alarm,PA Over-temperature Alarm,
PA DL output power overload Alarm, Reflection Power Alarm happens,
otherwise normal;
Alarm judgment period: 3 minutes by default.
Alarm when the DL output power is higher than the threshold, otherwise
normal;
Alarm judgment period: 3 minutes by default;
Alarm threshold: 48dBm.
Alarm when the PA status is off, otherwise normal;
Alarm judgment period: 10s by default.
Alarm when LNA have problems, otherwise normal;
Alarm judgment period: 3 minutes by default.
6.2 TROUBLESHOOTING
Following installation and commissioning, occasional operation tasks to handle alarms may be required:
Table 14: MU Alarms Diagnosis
Alarm condition
OverTemperature
alarm
Optical TX Alarm
Optical RX Alarm
DL Input Power
Overload Alarm
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Diagnosis
Check device temperature on WEB GUI
If device temperature is over threshold, make sure environment temperature
is within the envireonment temperature range that MU supported (0~40℃).
Apply climatic protection to the system under severe environment.
Test MU transmit optical power
Replace FOU if transmit optical power is less than -7dBm
Use Optical Power Meter to test received optical power
If received optical power is lower than -10dBm, test whether RU transmit
optical power is normal (3~5dBm)
Check if optical loss of fiber link is higher than 6.5dBo
Clean fiber connector with absolute ethanol
Test DL input power of MU, if it is higher than +33dBm, choose proper coupler to
ensure the input power to MU is lower than +33dBm.
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Table 15: RU Alarms Diagnosis
Alarm condition
Diagnosis
External Alarm
Check to make sure if the external device connected is working normally
OverTemperature
alarm
Optical TX Alarm
Optical RX Alarm
DL PA alarms
Check device temperature on WEB GUI
If device temperature e is over threshold, make sure environment temperature
is within the envireonment temperature range that RU supported (40~70℃).Apply climatic protection to the system under severe environment.
Test RU transmit optical power
Replace FOU if transit optical power is less than 0dBm
Use Optical Power Meter to test received optical power
If received optical power is lower than -14dBm, test whether MU transmit
optical power is normal (-4~-2dBm)
Check if optical loss of fiber link is higher than 6.5dBo
Clean fiber connector with absolute ethanol
Check PA Service Status on WEB GUI RU page,
If it is [Recovery], reset PA on WEB GUI Management page, then read RU
output power: If output power is exceed threshold, need to reduce gain or
input power; if output power is normall, check whether antenna port VSWR is
too high.
If it is [Shutdown], Refer to PA Shutdown Alram
DL Output Power
Overload Alarm
Check if output power is exceed the threshold (48dBm)
Decrease the gain to reduce the output power
PA Shutdown
Alarm
Make Sure the environment temperature is -40~70℃
Reset PA, if PA service status turns to [Recovery], and then refer to DL PA
Alarms. If PA still shutdown, the PA module maybe damaged, please contact
with Comba to replace the RU.
LNA Alarm
Uplink LNA modual damaged, please contact with Comba to replace the RU.
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7 APPENDICES
7.1
APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE
The following tools (not included in package) are required for installation or routine maintenance:
Power Drill (for wall mount)
Adjustable Wrench (0.31 inch~0.79 inch)
Philips Screwdriver
Allen wrench (M6)
Signal generator support output power 10dB.
Site Master
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USER MANUAL FOR COMFLEX-6900
7.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION)
End of Section
End of Document
FOR NAM OFFICE EMAIL, PLEASE INSERT: support.us@comba-telecom.com
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