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RA 5700 R
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Comba Telecom RA 5700 D, RA 5700 R User Manual

USER MANUAL FOR RA-5700
RA-5700 QI
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USER MANUAL
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:
Comba Telecom Ltd.
This is an unpublished work the copyright in which vests in Comba International ("Comba").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.
RA-5700
TRI-BAND DISTRIBUTED ANTENNA
SYSTEM
USER MANUAL FOR RA-5700
RA-5700 QI
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Section
Page
0.2 CONTENTS
0.2 CONTENTS ........................................................................................................................... 2
0.3 INDEX TO FIGURES AND TABLES ..................................................................................... 4
0.4 HISTORY ............................................................................................................................... 6
0.5 GLOSSARY OF TERMS ....................................................................................................... 7
0.6 FCC SAFETY COMPLIANCE ................................................................................................ 8
0.7 SAFETY NOTICES AND ADMONISHMENTS .................................................................... 10
1 GENERAL INFORMATION ................................................................................................. 11
2 EQUIPMENT DESCRIPTION .............................................................................................. 13
2.1 SYSTEM DIAGRAM ............................................................................................................ 13
2.2 TYPICAL APPLICATION ..................................................................................................... 14
2.2.1 SINGLE FIBER CONFIGURATION ..................................................................................... 14
2.3 EQUIPMENT LAYOUT ........................................................................................................ 15
2.4 EQUIPMENT CONSTITUTION ........................................................................................... 17
2.5 KIT OF PARTS .................................................................................................................... 18
3 INSTALLATION ................................................................................................................... 19
3.1 WARNINGS AND ALERTS ................................................................................................. 19
3.2 SITE PLANNING CONSIDERATIONS ................................................................................ 20
3.2.1 SYSTEM INSTALLATION CHECKLIST .............................................................................. 21
3.3 INSTALLATION PROCEDURES ......................................................................................... 22
3.3.1 GOODS INWARDS INSPECTION ...................................................................................... 22
3.3.2 TOOLS ................................................................................................................................. 22
3.3.3 PREPARATION ................................................................................................................... 22
3.3.4 CABINET MOUNTING OF MU ............................................................................................ 23
3.3.5 RU MOUNTING RACK DIMENSION .................................................................................. 23
3.3.6 WALL MOUNTING OF RU .................................................................................................. 24
3.3.7 POLE MOUNTING OF RU .................................................................................................. 25
3.3.8 DRIP-LOOP ......................................................................................................................... 25
3.4 EQUIPMENT CONNECTORS ............................................................................................. 26
3.4.1 MU CONNECTORS............................................................................................................. 26
3.4.2 RU CONNECTORS ............................................................................................................. 27
3.5 EQUIPMENT CONNECTION .............................................................................................. 28
3.5.1 GROUNDING CONNECTION ............................................................................................. 28
3.5.2 LI-ION BATTERY CONNECTION ....................................................................................... 28
3.5.3 OPTICAL CONNECTION .................................................................................................... 28
3.5.4 EXTERNAL ALARM CONNECTION ................................................................................... 30
3.5.5 BTS ALARM CONNECTION ............................................................................................... 31
3.5.6 CONNECT TO PC ............................................................................................................... 32
4 COMMISSIONING ............................................................................................................... 33
4.1 PRE-COMMISSIONING TASKS ......................................................................................... 33
4.2 MU/RU RESET TIME DURATION ...................................................................................... 33
4.3 LED INDICATORS ............................................................................................................... 34
4.3.1 MU LED INDICATORS ........................................................................................................ 34
4.3.2 RU LED INDICATORS ........................................................................................................ 34
4.4 WEB OMT ........................................................................................................................... 35
4.4.1 CONNECTION FROM PC TO EQUIPMENT ...................................................................... 35
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4.4.2 OMT CONFIGURATION ..................................................................................................... 36
4.4.3 SYSTEM INFORAMTION .................................................................................................... 36
4.4.4 RF INFORMATION .............................................................................................................. 39
4.4.5 ALARM INFORMATION ...................................................................................................... 42
4.4.6 PROPERTIES INFORMATION ........................................................................................... 44
4.4.7 USER MANAGEMENT ........................................................................................................ 46
4.4.8 HELP ................................................................................................................................... 47
4.4.9 CHANGE PASSWORD ....................................................................................................... 48
5 TROUBLESHOOTING ........................................................................................................ 49
6 MAINTENANCE ................................................................................................................... 50
7 APPENDICES ...................................................................................................................... 51
7.1 APPENDIX A: BAND SELECTIVE UNIT USER MANUAL .................................................. 51
7.1.1 BS-8132 BSU (BAND SELECTIVE UNIT) ........................................................................... 51
7.1.2 BS-1933 BSU ...................................................................................................................... 52
7.1.3 BS-8132&BS-1933 BSU LAYOUT ....................................................................................... 53
7.1.4 BS-8132&BS-1933 KOP ...................................................................................................... 53
7.1.5 BSU OMT ........................................................................................................................... 54
7.1.6 BS-1933 OMT ..................................................................................................................... 56
7.1.7 BS-8132 OMT ...................................................................................................................... 59
7.1.8 BS-8132&BS-1933 BSU CONNECTORS ........................................................................... 62
7.2 APPENDIX B: TOOLS FOR INSTALLATION AND MAINTENANCE .................................. 63
7.3 APPENDIX C: OVERDRIVE PROTECTION PROCEDURE ............................................... 64
7.4 APPENDIX D: SERVICING POLICY AND RETURN OF EQUIPMENT .............................. 65
7.5 APPENDIX E: RMA (RETURN MATERIAL AUTHORIZATION) FORM ............................. 66
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0.3 INDEX TO FIGURES AND TABLES
Figure 1: View of MU Fully Equipped Shelf ........................................................................................................... 11
Figure 2: Front, Side and Bottom Views of RU Enclosure .................................................................................. 12
Figure 3: System Diagram ....................................................................................................................................... 13
Figure 4: Application of One MU with One RU through One Optical Module with WDM ................................ 14
Figure 5: Application of One MU with Four RUs through four Optical Modules with WDM ............................ 15
Figure 6: MU Equipment Layout ............................................................................................................................. 15
Figure 8: Cabinet Mounting of 19” Shelf ................................................................................................................ 23
Figure 9: RU Mounting Rack Dimension ............................................................................................................... 24
Figure 10: RU Wall Mounting .................................................................................................................................. 24
Figure 11: Pole Mounting of RU .............................................................................................................................. 25
Figure 12: MU Front Panel Connectors ................................................................................................................. 26
Figure 13: MU Back Panel Connectors.................................................................................................................. 26
Figure 14: RU Connectors ....................................................................................................................................... 27
Figure 15: Optical Connection ................................................................................................ ................................. 29
Figure 16: Pins Allocation for “EXT_ALM” Port for MU ....................................................................................... 30
Figure 17: Pins Allocation for “EXT_ALM” Port for RU ........................................................................................ 30
Figure 18: Pins Allocation for “BTS_ALM” Port .................................................................................................... 31
Figure 19: Web OMT Access .................................................................................................................................. 35
Figure 20: Log in ....................................................................................................................................................... 36
Figure 21: System Information ................................................................................................ ................................ 37
Figure 22: Firmware Update .................................................................................................................................... 37
Figure 23: Maintenance............................................................................................................................................ 38
Figure 24: Data Import ............................................................................................................................................. 38
Figure 25: Data Export ............................................................................................................................................. 39
Figure 26: Switch....................................................................................................................................................... 39
Figure 27: Alarm Threshold ..................................................................................................................................... 40
Figure 28: Temperature ........................................................................................................................................... 40
Figure 29: ATT........................................................................................................................................................... 41
Figure 30: Power ....................................................................................................................................................... 41
Figure 31: Gain ................................ ................................................................................................ .......................... 42
Figure 33: Master Alarm........................................................................................................................................... 43
Figure 34: Channel Alarm ........................................................................................................................................ 43
Figure 35: External Alarm ........................................................................................................................................ 43
Figure 36: Equipment ID .......................................................................................................................................... 44
Figure 37: Equipment Info. ...................................................................................................................................... 44
Figure 38: Site Location ........................................................................................................................................... 45
Figure 39: System Clock .......................................................................................................................................... 45
Figure 40: Comm. Config. ................................................................ ................................ ........................................ 45
Figure 41: Firmware Information ............................................................................................................................. 46
Figure 42: User Information ..................................................................................................................................... 46
Figure 43: Set Session Time ................................................................................................................................... 47
Figure 44: Help .......................................................................................................................................................... 47
Figure 45: About ........................................................................................................................................................ 47
Figure 46: Password Configuration ........................................................................................................................ 48
Figure 47: Change Password .................................................................................................................................. 48
Figure 48: BSU Layout ............................................................................................................................................. 53
Figure 49: Connection Type .................................................................................................................................... 54
Figure 50: Serial Port Configuration ....................................................................................................................... 55
Figure 52: System Information ................................................................................................ ................................ 56
Figure 53: Auto-Read ............................................................................................................................................... 56
Figure 54: Switch....................................................................................................................................................... 57
Figure 55: Channel NO. ........................................................................................................................................... 57
Figure 56: Channel Alarm ........................................................................................................................................ 58
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Figure 57: Equipment ID .......................................................................................................................................... 58
Figure 58: System Information ................................................................................................ ................................ 59
Figure 59: Auto-Read ............................................................................................................................................... 60
Figure 60: Switch....................................................................................................................................................... 60
Figure 61: Channel NO. ........................................................................................................................................... 61
Figure 62:Channel Alarm ................................................................................................ ......................................... 61
Figure 63: Equipment ID .......................................................................................................................................... 61
Figure 64: BSU Connectors ..................................................................................................................................... 62
Figure 65: BSU Connection Overview ................................................................................................................... 63
Table 1: MU Constitution.......................................................................................................................................... 17
Table 2: RU Constitution .......................................................................................................................................... 17
Table 3: MU KOP ...................................................................................................................................................... 18
Table 4: RU KOP ...................................................................................................................................................... 18
Table 5: MU Front Panel Connections ................................................................................................................... 26
Table 6: MU Back Panel Connections ................................................................................................................... 26
Table 7: RU Connections ......................................................................................................................................... 27
Table 8: Pin Definition of “EXT_ALM” Port for MU ............................................................................................... 30
Table 9: Pin Definition of “EXT_ALM” Port for RU ............................................................................................... 30
Table 10: MU LED Indicators .................................................................................................................................. 34
Table 11: RU LED Indicators ................................................................................................................................... 34
Table 12: IP Setting Quick Look-up Table ............................................................................................................. 36
Table 13: Equipment ID ........................................................................................................................................... 44
Table 14: Alarms Diagnosis ..................................................................................................................................... 50
Table 15: Bandwidth and Channel No. .................................................................................................................. 51
Table 16: BS-1933 KOP ........................................................................................................................................... 53
Table 17: BS-8132 KOP ........................................................................................................................................... 54
RA-5700 QI
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Change No.
ENU
Details Of Change
1
1-0-0
This user manual first created on 28May2010 which referred to its Chinese manual RA-5700-1001YH released in May 2010.
2
1-1-0
Updated Web OMT, added BUS layout in this document in Oct
2010.
3
1-1-1
Update the user manual based on the requirement in Dec 2010.
0.4HISTORY
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0.5 GLOSSARY OF TERMS
ALC
Automatic Level Control
ATT
Attenuation
BS
Base Station
BTS
Base Transceiver Station
dB
Decibel
dBm
Decibels relative to 1 milliwatt
DL
Downlink
DPX
Duplexer
DT
Donor Terminal
EEPROM
Electrically Erasable Programmable Read Only Memory
E/O,O/E
Electrical/Optical, Optical/Electrical
Hz
Hertz
ID
Identification
LNA
Low Noise Amplifier
MCU
Main Control Unit
MHz
Megahertz
MT
Mobile Terminal
MTBF
Mean Time Between Failures
NC
Normally Closed
NF
Noise Figure
NO
Normally Open
OMC
Operation & Maintenance Center
OMT
Operation & Maintenance Terminal
OP
Optical Fiber
PA
Power Amplifier
PLL
Phase Locked Loop
POI
Point of Interconnects
PSU
Power Supply Unit
RF
Radio Frequency
RX
Receive
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
WDM
Wavelength Division Multiplexer
USER MANUAL FOR RA-5700
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Antenna Type
Safe
Distance
(cm)
Antenna
EIRP(mW)
Antenna
Input
Power(dBm)
Antenna Gain(dBi)
Requirement (mW/cm2)
Frequency(
MHz)
1
IXD­120V06K0­2(1710­2500MHz)
17.80
3981.07
30 6 1.00
1960
2
IXD­120V06N0­3(806­960/1710­2500MHz)
23.22
3981.07
30 6 0.59
881
17.80
3981.07
30 6 1.00
1960
3
IXD­360V03K0­2(1710­2500MHz)
11.36
1621.81
30
2.1
1.00
1960
4
IXD­360V03N0­2(806­960/1710­2500MHz)
18.45
2511.89
30 4 0.59
881
14.14
2511.89
30 4 1.00
1960
5
IXD­360V03N0­3(806­960/1710­2500MHz)
20.00
2951.21
30
4.7
0.59
881
15.32
2951.21
30
4.7
1.00
1960
6
IXD­360V03N0­33(698­896/1710­2700MHz)
25.39
3981.07
30 6 0.49
737
25.15
3981.07
30 6 0.50
751
23.22
3981.07
30 6 0.59
881
17.80
3981.07
30 6 1.00
1960
7
IXD­360V03N0­52(806­960/1710­2700MHz)
20.00
2951.21
30
4.7
0.59
881
15.32
2951.21
30
4.7
1.00
1960
8
IXD­360V03N0­54(698­960/1710­2700MHz)
20.17
2511.89
30 4 0.49
737
19.98
2511.89
30 4 0.50
751
18.45
2511.89
30 4 0.59
881
14.14
2511.89
30 4 1.00
1960
0.6 FCC SAFETY COMPLIANCE
Comaba Tri-band Distributed Antenna System (DAS) has been tested and complies with the FCC rules.
FCC ID: PX8RA-5700-R Environmental evaluation and exposure limit according to FCC CFR 47part 1, §1.1307, §1.1310
The below table shows the RF exposure for fixed repeater
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Antenna Type
Safe
Distance
(cm)
Antenna
EIRP(mW)
Antenna
Input
Power(dBm)
Antenna Gain(dBi)
Requirement (mW/cm2)
Frequency(
MHz)
9
IXD­360V03N0­6(806­960/1710­2500MHz)
20.00
2951.21
30
4.7
0.59
881
15.32
2951.21
30
4.7
1.00
1900
10
IWH­090V08N0­2(806­960/1710­2700MHz)
29.45
6309.57
30 8 0.58
869
22.41
6309.57
30 8 1.00
1900
11
IWH­120V06N0­1(806­960/1710­2500MHz)
23.22
3981.07
30 6 0.59
881
17.80
3981.07
30 6 1.00
1900
*Antenna type: comtact Comba US office if any questions regarding out antenna product and service.
FCC ID: PX8RA-5700-D
PX8RA-5700-D is connected to BTS output via RF cable and coupler, the RF output power is less than 1 mW and far below the BTS output power, so the safety expossure distance is short than BTS safety exposure distance, no additional notice for safety exposure distance.
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0.7 SAFETY NOTICES AND ADMONISHMENTS
This document contains safety notices in accordance with appropriate standards. In the interests of conformity with the territory standards for the country concerned, the equivalent territorial admonishments are also shown.
Any installation, adjustment, maintenance and repair of the equipment must only be carried out by trained, authorized personnel. At all times, personnel must comply with any safety notices and instructions.
Specific hazards are indicated by symbol labels on or near the affected parts of the equipment. The labels conform to international standards, are triangular in shape, and are coloured black on a yellow background. An informative text label may accompany the symbol label.
Hazard labeling is supplemented by safety notices in the appropriate equipment manual. These notices contain additional information on the nature of the hazard and may also specify precautions.
Warning:
These draw the attention of personnel to hazards that may cause death or injury to the operator or others. Examples of use are cases of high voltage, laser emission, toxic substances, point of high temperature, etc.
Alert:
These draw the attention of personnel to hazards that may cause damage to the equipment. An example of use is the case of static electricity hazard.
Caution notices may also be used in the handbook to draw attention to matters that do not constitute a risk of causing damage to the equipment but where there is a possibility of seriously impairing its performance, e.g. by mishandling or gross maladjustment. Warnings and Cautions within the main text do not incorporate labels and may be in shortened form.
End of Section
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5.2"
17.2"
19"
1 GENERAL INFORMATION
The RA-5700 Tri-Band Distributed Antenna System (hereinafter called “RA-5700”) is designed for working on 700MHz, 850MHz and 1900MHz networks. It provides flexible and scalable solution of multi-band, multi-operator coverage extension applications.It is the ideal solution to both indoor and outdoor as well.
RA-5700 consists of Master Unit (MU) RA-5700-D and Remote Unit (RU) RA-5700-R. The low signal transmission loss of optical fiber is applicable for long distance transmission. RA-5700 can
support the optical transmission of up to 5dB signal transmission loss. It can extend BTS coverage and eliminate blindspot, shadow area and weak-signal area to improve call quality.
Main feature:
High output power with high linearity, which supports multiple carrier operation and ensures the signal
source is of good quality.
Optical fiber transmission with long distance transition at the most path loss of 5dB.  Local Operation and Maintenance Terminal (OMT): operating status and parameters can be set or
monitored by OMT PC locally. And the point-to-point setting and inquiry between MU and RU is realizable through the integrated wireline/wireless modem, which makes it convenient for on-site configuration.
Operation Maintenance Center (OMC): system working parameters and communication configuration
can be set or inquired remotely through the integrated Ethernet adaptor. If alarm is generated, the equipment will dial up to OMC automatically in the mode of GPRS.
Build-in Li-ion battery ensures that alarm information can automatically report to OMC in case of
equipment power failure.
RU is designed for all-weather outdoor operation - waterproof, damp-proof and omni-sealed.
The figures below show the equipment enclosure layout of RA-5700 MU and RU:
Figure 1: View of MU Fully Equipped Shelf
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20"
5"
10"
Figure 2: Front, Side and Bottom Views of RU Enclosure
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RU
Optical Fiber
MU
RU RU RU
Optical Fiber
Cable
Distribution
Cable
Distribution
Cable
Distribution
Cable
Distribution
2 EQUIPMENT DESCRIPTION
2.1 SYSTEM DIAGRAM
Figure 3: System Diagram
On the DL, combined signals as 700MHz, 850MHz and 1900MHz from the BTSs 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 at the MT port to the service antenna.
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.
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Tx/Rx
Tx/Rx
Coupler
BTS
MT
ANT
MU
OP UL_DL
OP UL_DL
1310nm/1550nm
WDM
RU
WDM
2.2 TYPICAL APPLICATION
2.2.1 SINGLE FIBER CONFIGURATION
For equipments with WDM Unit, the single fiber configuration is applicable. Through using WDM technique, one fiber is shared between optical signals.
Refer to the following two applications of single fiber configuration:
2.2.1.1 Typical Application of Single Fiber Configuration
Shown below is a typical application showing the ability to interwork RA-5700.
Figure 4: Application of One MU with One RU through One Optical Module with WDM
2.2.1.2 Extension Application of Single Fiber Configuration
A fully equipped MU can host up to four RU (s) through optical module. This can be achieved by accommodating four Optical Modules with WDM. Refer to the figure below:
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Tx/Rx
Tx/Rx
Coupler
BTS
MU
MT
MT
MT
MTMT
ANT
ANT
ANT
ANT
RU
RU
RU
RU
OP UL_DL
OP UL_DL
OP UL_DL
OP UL_DL
1310nm/1550nm
1310nm/1550nm
1310nm/1550nm
1310nm/1550nm
WDM
WDM
WDM
WDM
WDM
WDM
WDM
WDM
UL Adaptor Module
DL Adaptor Module
Optical TX/RX
Module 1
Optical TX/RX
Module 2
Optical TX/RX
Module 3
Optical TX/RX
Module 4
Duplexer 1
Duplexer 2
Duplexer 3
Duplexer 4
PSU
MODEM
MCU
Distribution Board
Li-ion Battery
LED Indicator Board
Figure 5: Application of One MU with Four RUs through four Optical Modules with WDM
2.3 EQUIPMENT LAYOUT
The MU RA-5700-D is constructed into a 19” shelf. It is connected via the connectors located on the front panel. The RU RA-5700-R is designed for all cables entries from the bottom of the enclosure.
The internal layout for the MU is shown below:
Figure 6: MU Equipment Layout
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PSU
Li-ion
Battery
Integrated RF Module
DL PA
1900/850 Dualband Combiner
MCU
Surge Arrestor
700MHz Duplexer
The internal layout for the RU is shown below:
Figure 7: RU Equipment Layout
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Identifier
Functional Description
UL/DL Adaptor Module
Supports tri-band UL/DLRF Module, it splits and combines UL/DL signal to complete filter, gain control and power control.
Duplexer
Completes signal conversion.
Optical TX/RX Module
Completes optical signal and RF signal conversion.
Main Control Unit (MCU)
Is used to control and monitor the operation parameters of the MU and provides telecommunication interface for local monitoring.
Distribution Board
Connects with modules and MCU; local commissioning via RJ45 port.
Power Supply Unit (PSU)
Converts the input voltage into stable DC to supply power for other modules and to charge the internal Li-ion battery.
Li-ion Battery
Will supply power to MCU after power failure.
Identifier
Functional Description
Power Supply Unit (PSU)
Converts the input voltage into stable DC to supply power for other modules and to charge the internal Li-ion battery.
700MHz Duplexer
Fulfills 700MHz signal conversion.
1900/850 Dualband Combiner
Duplexes and combines both 1900MHz and 850MHz signals.
Optical TX/RX Module
Completes optical signal and RF signal conversion.
Integrated RF Module
Combines the UL LNA and pre-amplifies the DL signals.
DL PA Module
Amplifies the desired signal.
MCU
Is used to control and monitor the operation parameters of the RU and provides telecommunication interface for local monitoring.
Li-ion Battery
Will supply power to MCU after power failure.
2.4 EQUIPMENT CONSTITUTION
RA-5700 consists of MU and RU that consists of the modules described below:
The MU consists of:
The RU consists of:
Table 1: MU Constitution
Table 2: RU Constitution
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Product Identifier
Description
Quantity
Fuse
N/A 2 N to SMA Connector
N female to SMA male
1
Modem Antenna
OOA-360/V02-SD
1
Feeder Cable
N male to N male; customized length accordingly
1
Field Commissioning Cable
N/A 1 Optical Jumper
FC/APC, 1m
1
Power Supply Cable
N/A 1 Philips Pan Head Screw
GB/T818, M5x10
4
Product Identifier
Description
Quantity
Allen Key
5mm
1
Clamp
T3-099901-5202
2
Carriage Bolt (L>120)
M12x160
4
External Alarm Cable
N/A 1 Field Commissioning Cable
N/A 1 Fuse
N/A 2 Hex Bolt
M8x12
4
Mounting Rack
RA-5700-5825
1
Masonry Bolt
M10x110
4
Nut
M12
8
Optical Jumper
1 Power Supply Cable
N/A 1 Plain Washer
Φ8 4 Spring Washer
Φ8 4 Factory Test Report
1 This manual on CD
1
2.5 KIT OF PARTS
For this system, the following are shipped:
Table 3: MU KOP
Table 4: 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, as far as reasonably, practicable danger. Any work activity on or near equipment involving installation, operation or maintenance must be, as far as reasonably, free from danger.
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, animal 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.
USER MANUAL FOR RA-5700
RA-5700 QI
Copyright - refer to title page
Page 20
ENU Status : 1-1-2
3.2 SITE PLANNING CONSIDERATIONS
Site Considerations
The MU can be located indoors to facilitate coupling of BTS signals and power supply connections. The ALC range of received BTS signal is -10~10 dBm. Hence, an appropriate coupler must be used according to the BTS output power.
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 13km, with a maximum path loss of 5dB.  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 that of temperature ranges from 32~104 oF (MU)/ -27~122 oF (RU) and the relative humidity is at most 85%(MU)/95%(RU).
Direct day light to the RU should be avoided. If the direct day light temperature exceeds 104oF, a shelter should be provided for it.
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.
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