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HRU01 6800
User Manual
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Comba Telecom HRU01 6800 User Manual

ComFlex-6800
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USER MANUAL
ComFlex-6800 QE 1-0-0
编 制：__ 张宇文 __
审 核： __ 邓海龙 __
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会 签： ___ 赵文莉__ _
标准化：___ 高晓林____
批 准： ____张 晖__ _
京信通信系统（中国）有限公司
文件编号
ComFlex-6800 QE
文件标题
COMFLEX-6800 SERIES DISTRIBUTED ANTENNA SYSTEM MANUAL
文件履历
版本
编制
日期
更改内容（条款）
A
张宇文
2017-2-20
首次发行
文件历史记录
ComFlex-6800
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USER MANUAL
ComFlex-6800 QE: 1-0-0
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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This is an unpublished work the copyright in which vests in Comba International ("Comba").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.
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Section
Page
0.1 CONTENTS
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
1 GENERAL INFORMATION ............................................................................................................................ 10
2 EQUIPMENT DESCRIPTION .......................................................................................................................... 12
2.1 SYSTEM DIAGRAM ...................................................................................................................................... 12
2.2 TYPICAL APPLICATION ................................................................................................................................ 12
2.3 EQUIPMENT CONSTITUTION ....................................................................................................................... 13
2.4 KIT OF PART ................................................................................................................................................ 14
3 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
3.1 EQUIPMENT CONNECTORS ........................................................................................................................... 28
3.2 EQUIPMENT CONNECTION ............................................................................................................................. 31
4 COMMISSIONING ....................................................................................................................................... 38
4.1 PRE-COMMISSIONING TASKS ........................................................................................................................ 38
4.2 LED INDICATORS ............................................................................................................................................ 38
4.3 DIGITAL DISPLAY INDICATORS ....................................................................................................................... 39
4.3.1 DIGITAL DISPLAY ON RFU .......................................................................................................................... 39
4.3.2 DIGITAL DISPLAY ON FOU.......................................................................................................................... 39
5 WEB GUI ..................................................................................................................................................... 41
5.1 WEB GUI CONNECTION ............................................................................................................................... 41
5.2 WEB GUI INTRODUCTION ........................................................................................................................... 42
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5.2.1 [DEVICES] ............................................................................................................................................... 42
5.2.2 [COMMISSIONING] ................................................................................................................................ 47
5.2.3 [FIRMWARE] .......................................................................................................................................... 47
5.2.4 [MANAGEMENT] .................................................................................................................................... 50
5.3 COMMISSIONING PROCEDURE ................................................................................................................... 60
6 ALARMS AND TROUBLESHOOTING ............................................................................................................. 67
6.1 ALARMS ...................................................................................................................................................... 67
6.2 TROUBLESHOOTING ................................................................................................................................... 68
7 APPENDICES ............................................................................................................................................... 70
7.1 APPENDIX A: TOOLS FOR INSTALLATION AND MAINTENANCE .................................................................... 70
7.2 APPENDIX B: RMA (RETURN MATERIAL AUTHORIZATION) ......................................................................... 71
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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 Diagramc ..................................................................................................................................... 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: RU Connectors ....................................................................................................................................... 30
Figure 25: MU Grounding (MU Rear Panel) ......................................................................................................... 31
Figure 26: RU Grounding ......................................................................................................................................... 32
Figure 27: Fiber Optical and RF Port Connection ................................................................................................ 33
Figure 28: MU Power Connection (Rear Panel) ................................................................................................... 33
Figure 29: MU Power Connection (Rear Panel) ................................................................................................... 34
Figure 30: Tighten Optical Fiber Connection ........................................................................................................ 34
Figure 31: Power Supply Connection ................................................................................................ .................... 35
Figure 32: RU Fiber Optical and RF Port Connection ........................................................................................ 35
Figure 33: Pins Allocation for “EXT_ALM” Port of RU ........................................................................................ 36
Figure 34: Pins Allocation for “BTS_ALM” Port .................................................................................................... 36
Figure 35: RFU Digital Display ................................................................................................................................ 39
Figure 36: Optical Port No. and Digital Display .................................................................................................... 39
Figure 37: PC IP Address Setting........................................................................................................................... 41
Figure 38: Input IP Address ..................................................................................................................................... 41
Figure 39: Input User Name and Password .......................................................................................................... 42
Figure 40: Web GUI Main Screen .......................................................................................................................... 42
Figure 41: [Devices] Sceen ..................................................................................................................................... 43
Figure 40: MU Device - Monitoring Unit ................................................................................................................ 43
Figure 41: MU Device - Optical Unit ....................................................................................................................... 44
Figure 42: MU Device - RF Unit .............................................................................................................................. 44
Figure 43: RU Device ................................ ................................................................ ................................ ............... 45
Figure 44: RU Device – 700 .................................................................................................................................... 46
Figure 45: RU Device – External Alarm ................................................................................................................. 46
Figure 50: RU Device – Fan Alarm ........................................................................................................................ 47
Figure 46: [Commissioning] Screen ....................................................................................................................... 47
Figure 47: [Firmware] Screen – Modnitoring Upgade ......................................................................................... 48
Figure 48: [Firmware] Screen – Pop-up Window 1 .............................................................................................. 48
Figure 49: [Firmware] Screen – Pop-up Window 2 .............................................................................................. 48
Figure 50: [Firmware] Screen - Swap .................................................................................................................... 49
Figure 51: [Firmware] Screen – Module Upgrade ................................................................................................ 49
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Figure 52: [Management] Sceen ............................................................................................................................ 50
Figure 53: Management – Import&Export ............................................................................................................. 51
Figure 54: Management – IP Setting ..................................................................................................................... 52
Figure 55: Management – SNMP Setting.............................................................................................................. 52
Figure 56: Management – Security ........................................................................................................................ 53
Figure 57: Modify Password .................................................................................................................................... 53
Figure 58: Management – Device Reset ............................................................................................................... 54
Figure 59: Management – PA Reset ...................................................................................................................... 54
Figure 60: Management – Device Info ................................................................................................................... 55
Figure 61: Management – Device Scanning ......................................................................................................... 55
Figure 62: Management – Device Remove .......................................................................................................... 56
Figure 63: Management – Report........................................................................................................................... 57
Figure 67: Firefox setting (1) ................................................................................................................................... 57
Figure 65: Firefox setting (2) ................................................................................................................................... 58
Figure 66: Management – Alarm Log ................................................................................................ .................... 59
Figure 67: Commissioning Procedure - Start........................................................................................................ 60
Figure 68: Commissioning Procedure – Device Scan ......................................................................................... 60
Figure 69: Commissioning Procedure – Params Setting .................................................................................... 61
Figure 70: Dev Info & Date/Time ............................................................................................................................ 61
Figure 71: Commissioning Procedure – MU Calibration ..................................................................................... 62
Figure 72: Commissioning Procedure – MU Calibration Finish ......................................................................... 62
Figure 73: Commissioning Procedure – RU Calibration ..................................................................................... 63
Figure 74: Commissioning Procedure – RU Calibration Finish .......................................................................... 63
Figure 75: Commissioning Procedure – MU Setup ............................................................................................. 64
Figure 76: MU Frequency Band Table ................................................................................................................... 64
Figure 77: Commissioning Procedure – RU Setup .............................................................................................. 65
Figure 78: RU Frequency Band Table ................................................................................................ ................... 65
Figure 79: Commissioning Procedure – Finish .................................................................................................... 66
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: RU Connections ......................................................................................................................................... 30
Table 8: Pin Definition of “BTS_ALM” Port............................................................................................................ 36
Table 9: MU LED Indications .................................................................................................................................. 38
Table 10: RU LED Indications ................................................................................................................................. 38
Table 11: RFU Digital Display ................................................................................................................................. 39
Table 12: FOU Digital Display ................................................................................................................................. 40
Table 13: Import/Export Parameters ...................................................................................................................... 51
Table 14: MU Alarm List .......................................................................................................................................... 67
Table 15: RU Alarm List ........................................................................................................................................... 67
Table 16: MU Alarms Diagnosis ............................................................................................................................. 68
Table 17: RU Alarms Diagnosis .............................................................................................................................. 68
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0.3 HISTORY
Change No.
ENU
Details Of Change 1
1-0-0
This user manual first created in February 2017.
USER MANUAL FOR COMFLEX-6800
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ALC
Automatic Level Control
ATT
Attenuation
BDA
Bi-direction Amplifier
BS
Base Station
BTS
Base Transceiver Station
DL
Downlink
DT
Donor Terminal
FOU
Fiber Optical Unit
GUI
Graphic User Interface
ID
Identification
LNA
Low Noise Amplifier
MCU
Main Control Unit
MT
Mobile Terminal
MTBF
Mean Time Between Failures
MU
Master Unit
NC
Normally Closed
NF
Noise Figure
NO
Normally Open
OMC
Operation & Maintenance Center
OMT
Operation & Maintenance Terminal
OP
Optical Fiber
OPEX
OperatingExpense
PA
Power Amplifier
PIM
Passive Inter Modulation
PLL
Phase Locked Loop
POI
Point of Interconnects
PSU
Power Supply Unit
RF
Radio Frequency
RFU
Radio Frequency Unit
RU
Remote Unit
SMA
Sub-Miniature “A” Connector
TX/RX
Transmit/Receive
UL
Uplink
VAC
Volts Alternating Current
VSWR
Voltage Standing Wave Ratio
WCDMA
Wideband Code Division Multiple Access
0.4 GLOSSARY OF TERMS
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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. 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
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.
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 159 cm or more from all persons during normal operation and must not be co-located with any other antenna for meeting RF exposure requirements.
The design of the antenna installation needs to be implemented in such a way so as to ensure RF radiation safety levels and non-environmental pollution during operation.
Antenna gain should not exceed 12.5 dBi.
NOTE: A readily accessible disconnect device shall be incorporated external to the equipment.
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1 GENERAL INFORMATION
The ComFlex-6800 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, 700MHz (lower ABC)/700MHz (upper C), 800MHz (ESMR) / 850MHz (CELL), 1900MHz and EAWS 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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Optical Fiber
MU
Antenna
RU
BTS or BDA
…
BTS
(optional)
DAS Tray
SISO System
HRU 1 HRU 2 HRU 8
BTS
(optional)
DAS Tray
MIMO System
…
HRU 1A
HRU 1B
HRU 4A
HRU 4B
2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
Figure 3: System Diagramc
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.
Figure 4: Typical Application
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Module
Description
MU01-RACK
Master Unit Chassis includes eight slots for RF Unit, two slots for Fiber Optical Unit, and one slot for Power Supply Unit.
MU01-PSU
iDAS Master Unit Power Supply Unit (PSU) converts the input voltage into stable DC to supply power for other modules of Master Unit.
MU01-FOU
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.
MU01-RFU
Master Unit RF Unit completes separation and combination of uplink and downlink signal with independent gain control, supports either simplex or duplex.
Module
Description
HRU01-4300
Remote Unit; A module design which supports 4 bands, including 700MHz, 800&850MHz, 1900MHz and EAWS band.
2.3 EQUIPMENT CONSTITUTION
MU consists of the following parts:
Table 1: MU Components
RU consists of the following parts:
Table 2: RU Components
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2.4 KIT OF PART
Item
Qty
Image
MU Chassis
1
RF Unit (RFU)
1~8
Fiber Optical Unit (FOU)
1~2
Power Supply Unit (PSU)
1
Power Supply Cable
(13 Feet 1 inch)
1
Communication Cable
1
Right Angle Bracket
(for MU 19“rack mounting)
1
Left Angle Bracket
(for MU 19“ rack mounting)
1
USER MANUAL FOR COMFLEX-6800
Table 3: Master Unit (MU) KOP
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Item
Qty
Image
Remote Unit
1
Mounting Bracket (used for both pole and wall
installations)
1
Nuts M8, Spring Washers Φ8, Plain Washers Φ8 (used
for securing Remote Unit when hanged on bracket
protrusions)
2
pieces
each
Masonry Bolt (set) M10x110 – used for wall mount
installations
6
Hose Clamp (Φ30-Φ125) - used for pole mount
installations (2 per bracket)
5
OptiTap Optical Fiber
1
Power Supply Cable (AC)
1
Copper Grounding Wire (2m)
1
RJ45 Ethernet Communication Cable
1
Key – used for opening unit panels for access to
internal components.
1
Table 4: Remote Unit (RU) KOP
End of Section
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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.
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Manual Handling
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:
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Fiber optic cables require proper handling. Do not stretch, puncture, or crush the fiber cable(s) with
staples, heavy equipment, doors, etc.
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
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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)
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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