Samsung RFV01U-D2A User manual
Radio Access Networ
k
RFV01U-D2
A
Installation Manual
Describes product installation and requirement procedure
Document Version 2.0
July 2017
Document Number: 2600-00KTG7GAA
© 2017 SAMSUNG Electronics Co., Ltd.
All Rights Reserved. The contents of this document/presentation contain proprietary information that
must be kept confidential. No part of this document shall be photocopied, reproduced, stored in a
retrieval system, or transmitted, in any form or by any means whether, electronic, mechanical, or
otherwise without the prior written permission of SAMSUNG Electronics Co., Ltd.
No warranty of accuracy is given concerning the contents of the information contained in this
publication. To the extent permitted by law no liability (including liability to any person by reason of
negligence) will be accepted by SAMSUNG Electronics Co., Ltd., its subsidiaries or employees for
any direct or indirect loss or damage caused by omissions from or inaccuracies in this document.
SAMSUNG Electronics Co., Ltd. reserves the right to change details in this publication without notice.
SNMTC-v3-0312
This manual should be read and used as a guideline for properly installing and/or operating the
product. Owing to product variations across the range, any illustrations and photographs used in
this manual may not be a wholly accurate depiction of the actual products you are using.
This manual may be changed for system improvement, standardization and other technical
reasons without prior notice.
Samsung Networks documentation is available at http://www.samsungdocs.com
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Contents
Prefaceviii
ConventionsinthisDocument.......................................................................................................viii
NewandChangedInformation.......................................................................................................ix
RevisionHistory...............................................................................................................................ix
OrganizationofThisDocument......................................................................................................ix
RelatedDocumentation..................................................................................................................ix
PersonalandProductSafety............................................................................................................x
EquipmentMarkings......................................................................................................................xiv
Chapter1BeforeInstallation1
SystemConfigurationandInterface................................................................................................1
RRHConfiguration.......................................................................................................................1
RRHInterface...............................................................................................................................3
Specifications...................................................................................................................................5
CautionsforInstallation...................................................................................................................6
BeforeInstalling...........................................................................................................................6
WhileInstalling............................................................................................................................6
AfterInstalling.............................................................................................................................7
InstallationTools..............................................................................................................................8
Chapter2InstallingSystem11
InstallationProcedure....................................................................................................................11
SystemArrangement.....................................................................................................................12
TransportingandUnpacking..........................................................................................................18
BringinginItems........................................................................................................................18
UnpackingItems........................................................................................................................18
RRHHandling.................................................................................................................................19
FixingRRH......................................................................................................................................20
FixingFingerGuard....................................................................................................................20
FixingUnitBracket.....................................................................................................................23
FixingPoleType.........................................................................................................................26
FixingWallType.........................................................................................................................38
Chapter3ConnectingCables53
CablingProcedure..........................................................................................................................53
GuidelinesforCableConnections..................................................................................................54
CablePathInspection................................................................................................................54
CableCutting.............................................................................................................................55
CableInstallation.......................................................................................................................55
CableBinding.............................................................................................................................56
ConnectorAttachment..............................................................................................................56
IdentificationTagAttachment...................................................................................................57
CablingDiagram.............................................................................................................................58
Grounding......................................................................................................................................60
ConnectingGroundCable..........................................................................................................60
PowerCabling................................................................................................................................63
ConnectingPowerCable............................................................................................................64
InterfaceCableConnection............................................................................................................67
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Remove/InsertOpticalModule..................................................................................................67
ConnectingCPRICable...............................................................................................................68
ConnectingUDACable...............................................................................................................73
ConnectingRETCable................................................................................................................77
ConnectingRFCable..................................................................................................................79
Chapter4InspecttheInstallation86
AppendixAAcronyms91
AppendixBSectorAntennaInstallation92
CautionswhenInstallingaSectorAntenna...................................................................................92
SectorAntennaInstallation............................................................................................................94
AppendixCCleantheOpticalConnectors95
Introduction...................................................................................................................................95
MeasuringtheOpticalOutputandConnectingtheOpticalConnector.....................................95
AppendixDStandardTorque97
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List of Figures
Figure1.Configuration(withoutFingerGuard)..............................................................................................2
Figure2.RRHConfiguration(withFingerGuard)...........................................................................................3
Figure3.RRHInterface...................................................................................................................................4
Figure4.ProceduretoInstalltheRRH..........................................................................................................11
Figure5.RRHArrangement_1SectorPoleTypeInstallation(StandardInstallation)...................................12
Figure6.RRHArrangement_1SectorPoleTypeInstallation(SideInstallation)...........................................13
Figure7.RRHArrangement_2SectorPoleTypeInstallation(SideInstallation)...........................................13
Figure8.RRHArrangement_1SectorWallTypeInstallation(StandardInstallation)...................................14
Figure9.RRHArrangement_1SectorWallTypeInstallation(SideInstallation)..........................................15
Figure10.RRHArrangement_3SectorWallTypeInstallation(StandardInstallation)...................................16
Figure11.RRHArrangement_3SectorWallTypeInstallation(SideInstallation)..........................................17
Figure12.RRHHandling.................................................................................................................................19
Figure13.FingerGuardFixing(1)...................................................................................................................21
Figure14.FingerGuardFixing(2)...................................................................................................................21
Figure15.FingerGuardFixing(3)...................................................................................................................21
Figure16.FingerGuardFixing(4)...................................................................................................................22
Figure17.FingerGuardFixing(5)...................................................................................................................22
Figure18.FingerGuardFixing(6)...................................................................................................................22
Figure19.FixingUnitBracket_StandardInstallation(1)................................................................................24
Figure20.FixingUnitBracket_StandardInstallation(2)................................................................................24
Figure21.FixingUnitBracket_StandardInstallation(3)................................................................................25
Figure22.FixingUnitBracket_SideInstallation..............................................................................................26
Figure23.AssemblingMountingBracket(1)..................................................................................................27
Figure24.AssemblingMountingBracket(2)..................................................................................................28
Figure25.LiftingRRHandMountingBracketAssembly.................................................................................29
Figure26.LiftingRRHandMountingBracketAssembly.................................................................................30
Figure27.FixingMountingBracketAssembly_1SectorPoleType(1)...........................................................31
Figure28.FixingMountingBracketAssembly_1SectorPoleType(2)...........................................................31
Figure29.FixingMountingBracketAssembly_1SectorPoleType(3)...........................................................32
Figure30.LevellingMountingBracketAssembly_1SectorPoleType...........................................................32
Figure31.FixingMountingBracketAssembly_2SectorPoleType(SideInstallation1)................................33
Figure32.FixingMountingBracketAssembly_2SectorPoleType(SideInstallation2)................................33
Figure33.FixingMountingBracketAssembly_2SectorPoleType(SideInstallation3)................................34
Figure34.FixingRRH_1SectorPoleType(StandardInstallation)..................................................................35
Figure35.FixingRRH_1SectorPoleType(SideInstallation)..........................................................................36
Figure36.FixingRRH_2SectorPoleType(SideInstallation1).......................................................................38
Figure37.FixingRRH_2SectorPoleType(SideInstallation2).......................................................................38
Figure38.RRHmarkingdimensions_1SectorWallType(StandardInstallation)...........................................39
Figure39.RRHmarkingdimensions_1SectorWallType(SideInstallation)..................................................40
Figure40.RRHmarkingdimensions_3SectorWallType(StandardInstallation)...........................................40
Figure41.RRHmarkingdimensions_3SectorWallType(SideInstallation)..................................................41
Figure42.Marking_WallType........................................................................................................................42
Figure43.DrillingandAnchoring....................................................................................................................43
Figure44.FixingMountingBracket_1SectorWallType................................................................................45
Figure45.FixingMountingBracket_3SectorWallType................................................................................46
Figure46.FixingRRH_1SectorWallType(StandardInstallation)..................................................................47
Figure47.FixingRRH_1SectorWallType(SideInstallation).........................................................................48
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Figure48.FixingRRH_3SectorWallType(StandardInstallation1)...............................................................49
Figure49.FixingRRH_3SectorWallType(StandardInstallation2)...............................................................50
Figure50.FixingRRH_3SectorWallType(SideInstallation1).......................................................................51
Figure51.FixingRRH_3SectorWallType(SideInstallation2).......................................................................52
Figure52.ProceduretoConnectSystemCable..............................................................................................53
Figure53.CableConnectionProcedure..........................................................................................................54
Figure54.CableDiagram_RFConnection:2T2R.............................................................................................58
Figure55.CableDiagram_RFConnection:2T4R,4T4R..................................................................................58
Figure56.ConnectingGroundCable(1).........................................................................................................61
Figure57.ConnectingGroundCable(2).........................................................................................................62
Figure58.PowerEquipmentElements...........................................................................................................63
Figure59.ConnectingPowerCable(1)...........................................................................................................65
Figure60.ConnectingPowerCable(2)...........................................................................................................65
Figure61.OpticalModuleRemoval(1)..........................................................................................................67
Figure62.OpticalModuleRemoval(2)..........................................................................................................67
Figure63.OpticalModuleRemoval(3)..........................................................................................................67
Figure64.OpticalModuleInset......................................................................................................................68
Figure65.ConnectingCPRICable(1)..............................................................................................................69
Figure66.ConnectingCPRICable(2)..............................................................................................................70
Figure67.ConnectingCPRICable(3)..............................................................................................................70
Figure68.ConnectingCPRICable(4)..............................................................................................................71
Figure69.ConnectingCPRICable(5)..............................................................................................................71
Figure70.ConnectingCPRICable(6)..............................................................................................................72
Figure71.ConnectingUDACable(1)..............................................................................................................74
Figure72.ConnectingUDACable(2)..............................................................................................................74
Figure73.ConnectingUDACable(3)..............................................................................................................74
Figure74.ConnectingUDACable(4)..............................................................................................................75
Figure75.ConnectingUDACable(5)..............................................................................................................75
Figure76.ConnectingUDACable(6)..............................................................................................................76
Figure77.ConnectingRETCable(1)...............................................................................................................78
Figure78.ConnectingRETCable(2)...............................................................................................................78
Figure79.ConnectingRETCable(3)...............................................................................................................79
Figure80.ConnectingRETCable(4)...............................................................................................................79
Figure81.ConnectingRFCable_2T2RConnection(1)....................................................................................81
Figure82.ConnectingRFCable_2T2RConnection(2)....................................................................................81
Figure83.ConnectingRFCable_2T2RConnection(3)....................................................................................82
Figure84.ConnectingRFCable_2T2RConnection(4)....................................................................................83
Figure85.ConnectingRFCable_2T4R,4T4RConnection(1)..........................................................................84
Figure86.ConnectingRFCable_2T4R,4T4RConnection(2)..........................................................................84
Figure87.InstallationInspectionProcedure..................................................................................................86
Figure88.SectorAntenna...............................................................................................................................94
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List of Tables
Table1.Specifications...................................................................................................................................5
Table2.BasicInstallationTools.....................................................................................................................8
Table3.PartsandToolsforfixingFingerGuard..........................................................................................20
Table4.PartsandToolsforfixingUnitBracket_Standardinstallation.......................................................23
Table5.PartsandToolsforfixingUnitBracket_StandardInstallation.......................................................25
Table6.PartsandToolsforassemblingMountingBracket........................................................................26
Table7.PartsandToolsforfixingMountingBracketAssembly_1SectorPoleType..................................30
Table8.PartsandToolsforfixingMountingBracketAssembly_2SectorPoleType(SideInstallation).....32
Table9.FixingRRH_1SectorPoleType(StandardandSideInstallation)...................................................34
Table10.PartsandToolsforfixingRRH_2SectorPoleType(SideInstallation)...........................................36
Table11.ToolsforMarking...........................................................................................................................39
Table12.PartsandToolsforDrillingandAnchoring.....................................................................................42
Table13.AnchorBoltDrillBitsandHoleDepth............................................................................................43
Table14.PartsandToolsforfixingMountingBracket_1SectorWallType..................................................44
Table15.PartsandToolsforfixingMountingBracket_3SectorWallType..................................................45
Table16.PartsandToolsforfixingRRH_1SectorWallType(StandardandSideInstallation)....................46
Table17.PartsandToolsforfixingRRH_3SectorWallType(StandardInstallation)...................................48
Table18.PartsandToolsforfixingRRH_3SectorWallType(SideInstallation)...........................................50
Table19.RecommendedMinimumAllowedCablebendRadius..................................................................55
Table20.RRHConnectionCable...................................................................................................................59
Table21.PartsandToolsforconnectingGroundCable...............................................................................60
Table22.PartsandToolsforconnectingPowerCable.................................................................................64
Table23.PowerCable/ConnectorPinMap...................................................................................................64
Table24.PartsandToolsforconnectingCPRICable....................................................................................68
Table25.PartsandToolsforconnectingUDACable....................................................................................73
Table26.UDACablePinMap........................................................................................................................73
Table27.PartsforconnectingRETCable......................................................................................................77
Table28.RETCablePinMap.........................................................................................................................77
Table29.RFCableMinimumRadiusofCurvature........................................................................................79
Table30.PartsandToolsforconnectingRFcable........................................................................................80
Table31.RFCableIdentificationTag.............................................................................................................85
Table32.ConstructionSituationChecklist...................................................................................................87
Table33.StandardTorqueValueforFasteningBolts...................................................................................97
Table34.BrassBoltsTorqueValue...............................................................................................................97
Table35.ConnectorConnectionTorqueValue.............................................................................................97
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Preface
This manual describes how to install a 700/850 MHz RRH and how to connect its
cables. This manual includes the following 700/850 MHz RRH:
RFV01U-D2A
Conventions in this Document
Samsung Networks product documentation uses the following conventions.
Symbols
Symbol Description
Indicates a task.
Indicates a shortcut or an alternative method.
Provides additional information.
Provides information or instructions that you should follow to avoid service
failure or damage to equipment.
Provides information or instructions that you should follow to avoid personal
injury or fatality.
Provides antistatic precautions that you should observe.
Menu Commands
menu | command
This indicates that you must select a command on a menu, where menu is the
name of the menu, and command is the name of the command on that menu.
File Names and Paths
These are indicated by a bold typeface. For example:
Copy filename.txt into the /home/folder1/folder2/bin/ folder.
User Input and Console Screen Output Text
Input and output text is presented in the Courier font. For example,
context <designated epc-context-name>
CLI commands are presented in bold small caps. For example,
Type the RTRV-NE-STS command in the input field.
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New and Changed Information
This section describes information that has been added/changed since the previous
publication of this manual.
Added antenna gain. (Personal and Product Safety)
Added a safe distance between the base station antenna and people. (Caution
for Installation in Chapter 1)
Revision History
The following table lists all versions of this document.
Document Number Product/Software
Version
Document
Version
Publication
Date
Remarks
2600-00KTG7GAA RFV01U-D2A 1.0 July 2017 -
2600-00KTG7GAA RFV01U-D2A 2.0 July 2017 -
Organization of This Document
Section Title Description
Chapter 1 Before Installation This chapter introduces an RRH and describes
items that should be understood before
installation.
Chapter 2 Installing System This chapter describes the procedures to install
the RRH.
Chapter 3 Connecting Cables This chapter describes the procedures to connect
the cables to the RRH installed.
Chapter 4 Inspect the Installation This chapter describes the procedures of
inspecting installation status after RRH
installation and cabling is completed.
Appendix A Acronyms This annex describes the acronyms used in this
manual.
Appendix B Sector Antenna Installation This annex describes the sector antenna
installation.
Appendix C Clean the Optical Connectors This annex describes the procedure of cleaning
the optical connector and cleaning tool.
Appendix D Standard Torque This annex describes the standard torque when
fastening the bolt.
Related Documentation
LTE eNB System Description
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Personal and Product Safety
This product safety information includes European directives, which you must
follow. If these do not apply in your country, please follow similar directives that
do apply in your country.
Proposition 65 Warning (US Only)
State of California Proposition 65 Warning (US only)
WARNING: This product contains chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm.
Electrical
The product is designed to operate from a -48 V DC supply and is therefore
classified as Safe Extra Low Voltage (SELV) equipment.
All structural parts are grounded and all input and outputs have built-in isolation
from the network. All input and output ports that connect to external power
sources are designed to meet relevant national safety requirements.
The product contains hazardous energy levels as defined by EN 60950. Care must
be taken when maintaining this equipment as injury to personnel or damage to the
equipment could result from mistakes. Maintenance should only be carried out by
trained and competent engineers who are familiar with the relevant procedures and
instructions.
Lasers
The product is fitted with optic modules rated as Class 1 radiation-emitting devices
under EN 60825-1. During installation, operation, and maintenance, never look
into the end of an optical fiber directly or by reflection either with the naked eye or
through an optical instrument. Do not operate equipment with exposed fiber
connectors-cover these with fiber cables or blanking caps. Do not remove
equipment covers during operation unless requested to do so in the documentation.
Carry out normal safety precautions when trimming fibers during installation.
Manual Handling
Care should be taken when handling equipment. Give due consideration to the
weight of the equipment, the physical capability of the individual(s) handling the
equipment, and movements such as twisting, bending and stooping, which could
lead to skeletal and muscular injuries.
Installation
Installation must be carried out by trained and competent engineers only. All
relevant safety measures should be taken to ensure equipment is not connected to
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live power and transmission sources during installation. Equipment must be
correctly installed in order to meet the relevant safety standards and approval
conditions.
Each power feed to the unit requires a separate fused feed from the provided
power supply. The cable between the power distribution point and the installed
equipment must have a minimum cross-sectional area of 2.5 mm2.
Rack-mountable equipment must be placed in a standard 19-inch rack and secured
with the appropriate fixings as detailed in the installation manual.
Maintenance
Maintenance must only be carried out by a suitably trained and competent
technician. All safety instructions must be carefully observed at all times.
Equipment covers should not be removed while live power and transmission is
connected unless in a controlled environment by trained technicians.
Fire
The product is powered from a -48 V DC supply. To protect against fire, the
equipment is fused.
Environment
The product must be operated in an environment with the specified relative
humidity and ambient temperature ranges.
Keep all liquids away from the equipment as accidental spillage can cause severe
damage.
Cooling
The product cools down by its own set of cooling fans housed in a fan module.
Each fan module detects a fan that is not operating normally. LEDs on the front
panel of the fan module provide an alarm indication in the event of fan failure.
In the event of fan failure, take urgent remedial action to restore full cooling
capacity.
Take appropriate measures to ensure that fan modules do not start spinning during
repair and maintenance procedures.
Anti-Static Precautions
The circuit boards and other modules in the product are sensitive to and easily
damaged by static electricity. If any card or sub-assembly is removed from the unit,
the following anti-static precautions must be observed at all times:
Service personnel must wear anti-static wrist straps.
Circuit boards and sub-assemblies must be placed on ground conductive mats
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or in conductive bags.
All tools must be discharged to ground before use.
The anti-static wrist strap and cord must be checked at regular intervals for
their suitability for use.
Grounding
To comply with EN 60950, the equipment must be connected to a safety
grounding point via a permanent link. Grounding points are located on the product
for this purpose. Always connect the ground cable before fitting other cables. The
product must remain grounded continuously unless all connections to the power
supply and data network are all removed.
If equipment is grounded through a cabinet or rack, make sure it is done so
properly according to the installation instructions.
Power Supply Connection
The equipment is designed to be powered from a -48 V DC supply. Power
connections and installation of associated wiring must be carried out by a suitably
qualified technician.
Only devices that comply with all relevant national safety requirements should be
connected to the unit’s power supply inlets. Other usage will invalidate any
approval given to this equipment.
Connection of this equipment to devices that are not marked with all relevant
national safety requirements may produce hazardous conditions on the network.
When the power supply is obtained by a rectifier/safety isolation transformer, the
supply must meet the requirements of EN 60950 providing double/reinforced
insulation between hazardous voltages and SELV/TNV circuits. Any battery must
be separated from hazardous voltages by reinforced insulation.
Indirect Connection
Before indirectly connecting any equipment to another device through a shared
power supply, ALWAYS seek advice from a competent engineer.
Devices that are not marked according to the relevant national safety standards
may produce hazardous conditions on the network.
Product Disposal
To reduce the environmental impact of products, Samsung has joined WEEE
compliance activities.
The WEEE symbol on the product indicates that the product is covered by the
European Directive 2002/96/CE for the disposal of Waste Electrical and Electronic
Equipment (WEEE). This means that the product should be disposed of separately
from the municipal waste stream via designated collection facilities appointed by
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the government or the local authorities. This will help prevent potential negative
consequences for the environment and human health. Please check the terms and
conditions of the purchase contract for information about correct disposal.
Battery Disposal
The product contains a battery on the processor card. The battery should not be
disposed of with other household waste. Where marked, the chemical symbols Hg,
Cd or Pb indicate that the battery contains mercury, cadmium or lead above the
reference levels in EC Directive 2006/66. The battery incorporated in this product
is not user replaceable. For information on its replacement, please contact your
service provider. Do not attempt to remove the battery or dispose it in a fire. Do
not disassemble, crush, or puncture the battery.
End of life recycling materials information is available from Samsung.
California USA Only
This Perchlorate warning applies only to primary CR (Manganese Dioxide)
Lithium coin cells in the product sold or distributed ONLY in California USA
‘Perchlorate Material-special handling may apply, See
www.dtsc.ca.gov/hazardouswaste/perchlorate.’
Antenna Gain
The antenna gain with a maximum of 10.865 dBi should be used to satisfy
maximum ERP. But the antenna gain can be grown up to 13.875 dBi, when the
operator is extending the coverage to the unserved area.
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Equipment Markings
This marking on the product, accessories or literature indicates that the
product and its electronic accessories (e.g. charger, headset, USB cable)
should not be disposed of with other household waste at the end of their
working life. To prevent possible harm to the environment or human health
from uncontrolled waste disposal, please separate these items from other
types of waste and recycle them responsibly to promote the sustainable
reuse of material resources.
Household users should contact either the retailer where they purchased
this product, or their local government office, for details of where and how
they can take these items for environmentally safe recycling.
Business users should contact their supplier and check the terms and
conditions of the purchase contract. This product and its electronic
accessories should not be mixed with other commercial wastes for disposal.
Correct disposal of batteries in this product
(Applicable in countries with separate collection systems.)
The marking on the battery, manual or packaging indicates that the battery
in this product should not be disposed of with other household waste. Where
marked, the chemical symbols Hg, Cd or Pb indicate that the battery
contains mercury, cadmium or lead above the reference levels in EC
Directive 2006/66.
The battery incorporated in this product is not user replaceable. For
information on its replacement, please contact your service provider. Do not
attempt to remove the battery or dispose it in a fire. Do not disassemble,
crush, or puncture the battery. If you intend to discard the product, the waste
collection site will take the appropriate measures for the recycling and
treatment of the product, including the battery.
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Chapter 1 Before
Installation
This chapter introduces the RRH system and describes items you should know
before installation.
System Configuration and Interface
This section provides the pictorial view of the RRH and its interfaces.
RRH Configuration
The following figures depict the physical view of the RRH with and without the
finger guard configuration respectively.
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Figure 1. Configuration (without Finger Guard)
[Bottom View]
15 (380)
[Front View]
[Top View]
[Left View] [Right View] [Rear View]
19.73 (501)
8.1 (207)
15 (380)
Unit: in. (mm)
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Figure 2. RRH Configuration (with Finger Guard)
RRH Interface
The following figure depicts the physical view of the RRH interfaces.
[Bottom View]
15.49 (393)
[Front View]
[Top View]
[Left View] [Right View] [Rear View]
19.73 (501)
10.03 (255)
15.88 (403)
Unit: in. (mm)
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Figure 3. RRH Interface
[Bottom View]
ANT 1
(
Bias-T
)
ANT2
ANT 3
(
Bias-T
)
DC_PWR ANT4
RET
UD
A
L0
L1
[Right View]
Ground Terminal
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Specifications
The following table lists the main specifications of the RRH.
Table 1. Specifications
Item RRH
Input Current (MAX) 24 A @ -48 V DC
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Cautions for Installation
Observe the following safety instructions when installing the system. Installation
should be in accordance with the applicable local electric codes.
Before Installing
Before starting the installation, ensure the following:
Post warning signs in areas where high-voltage cables are installed.
Post ‘off limit’ signs in areas where accidents are most expected.
With guardrails or fences, block open areas such as connecting parts, roof, and
scaffold.
Install the system in the Restrict Access Area.
While Installing
While installation, ensure the following:
The system power must be cut off before installing.
Be careful not to damage or scratch the boards mounted on the system and the
cables among the boards when the system is transported or installed.
Make sure the power switch of power supply is off when installing the system.
Installing the system with power switch on may cause system damage or fatal
human injury when cables are not correctly connected.
Make sure that worker wears protection gloves and goggles to prevent damage
from debris while drilling holes in a wall or ceiling.
Do not wear accessories such as watches and rings to prevent electrical shock.
Never allow foreign substances to be inserted into unused ports by covering them
with a cap.
To prevent foreign substances, outdoor air and moisture from entering the cable
inlet (including cable gland and conduit), do the following:
- Unused inlet
Use the hole finishing materials including cap and rubber packing.
- Cable-installed inlet
After cable installation, block any space in the inlet with tape, compressed sponge,
rubber packing, and silicon.
Keep a safe distance between the base station antenna and people.
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