Samsung RT4401-48A User manual

Radio Access Network
RT4401-48A
Installation Manual
<Replace this text with a short document summary of no more two or three lines>
Document Version 3.0
February 2019
Document Number: 2600-00NETNGAA

© 2019 SAMSUNG Electronics Co., Ltd.
All Rights Reserved. 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

RT4401-48A Installation Manual v3.0 iii
Copyright © 2019, All Rights Reserved.
Contents
Preface x
Conventions in this Document ......................................................................................................... x
New and Changed Information ....................................................................................................... xi
Revision History............................................................................................................................... xi
Organization of This Document ...................................................................................................... xi
Related Documentation .................................................................................................................. xi
Personal and Product Safety ...........................................................................................................xii
Equipment Markings ......................................................................................................................xvi
Chapter 1 Before Installation 1
System View and External Interface ................................................................................................ 1
System View................................................................................................................................. 1
System External Interface ............................................................................................................ 2
Specifications ................................................................................................................................... 5
Cautions for Installation ................................................................................................................... 7
Before Installing........................................................................................................................... 7
While Installing ............................................................................................................................ 7
After Installing ............................................................................................................................. 8
Installation Tools .............................................................................................................................. 9
Chapter 2 Installing System 12
Installation Procedure .................................................................................................................... 12
System Arrangement ..................................................................................................................... 13
Using Tilting and Swiveling Bracket........................................................................................... 13
Using Tilting Bracket.................................................................................................................. 16
Without Tilting Bracket.............................................................................................................. 17
Using Side by Side Bracket ......................................................................................................... 17
Transporting and Unpacking .......................................................................................................... 19
Bringing in Items........................................................................................................................ 19
Unpacking.................................................................................................................................. 19
Fixing RRH ...................................................................................................................................... 20
Assembling Clip on Antenna ...................................................................................................... 20
Assembling AC-DC Power Unit................................................................................................... 24
Using Tilting and Swiveling Bracket........................................................................................... 26
Using Tilting Bracket.................................................................................................................. 46
Without the Tilting Bracket ....................................................................................................... 54
Using Side by Side Bracket ......................................................................................................... 62
Chapter 3 Connecting Cables 80
Cabling Procedure .......................................................................................................................... 80
Guidelines for Cable Connections .................................................................................................. 81
Cable Path Inspection ................................................................................................................ 81
Cable Cutting ............................................................................................................................. 82
Cable Installation ....................................................................................................................... 82
Cable Binding ............................................................................................................................. 83
Connector Attachment............................................................................................................... 83
Identification Tag Attachment................................................................................................... 84
Cabling Diagram ............................................................................................................................. 85

Contents
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Grounding ...................................................................................................................................... 87
Connecting Ground Cable .......................................................................................................... 87
Power Cabling ................................................................................................................................ 92
Connecting Power Cable ............................................................................................................ 93
Interface Cable Connection.......................................................................................................... 104
Remove/Insert Optical Module................................................................................................ 104
Connecting CPRI Cable ............................................................................................................. 106
Connecting UDA Cable ............................................................................................................. 110
Connecting RET Cable .............................................................................................................. 115
Connecting RF Cable (External RF Antenna connection).......................................................... 118
Assembling Cable Cover ............................................................................................................... 124
Chapter 4 Inspect the Installation 126
Appendix A Acronyms 130
Appendix B Clean the Optical Connectors 131
Introduction ................................................................................................................................. 131
Measure the Optical Output and Connecting the Optical Connector ...................................... 131
Appendix C Standard Torque 133

RT4401-48A Installation Manual v3.0 v
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List of Figures
Figure 1. System View (RRH only) ................................................................................................................... 1
Figure 2. System View (with Clip-on: Antenna + AC-DC Power Unit).............................................................. 2
Figure 3. System External Interface (RRH only) .............................................................................................. 3
Figure 4. System External Interface (with Clip-on: Antenna + AC-DC Power Unit)......................................... 3
Figure 5. Procedure to Install the RRH .......................................................................................................... 12
Figure 6. RRH Arrangement_1 Sector Pole Type Installation........................................................................ 13
Figure 7. RRH Arrangement_1 Sector Wall Type Installation ....................................................................... 14
Figure 8. RRH Arrangement_1 Sector Tilting ................................................................................................ 14
Figure 9. RRH Arrangement_Swivelling ........................................................................................................ 15
Figure 10. RRH Arrangement_3 Sector Pole Type Installation........................................................................ 16
Figure 11. RRH Arrangement_3 Sector Tilting ................................................................................................ 16
Figure 12. RRH Arrangement_3 Sector Pole Type Installation........................................................................ 17
Figure 13. RRH Arrangement_3 Sector Pole Type Side by Side Installation ................................................... 18
Figure 14. RRH Arrangement_3 Sector Wall Type Side by Side Installation ................................................... 18
Figure 15. Assembling Clip on Antenna (1) ..................................................................................................... 20
Figure 16. Assembling Clip on Antenna (2) ..................................................................................................... 21
Figure 17. Assembling Clip on Antenna (3) ..................................................................................................... 22
Figure 18. Assembling Clip on Antenna (4) ..................................................................................................... 23
Figure 19. Assembling Clip on Antenna (5) ..................................................................................................... 24
Figure 20. Assembling AC-DC Power Unit (1).................................................................................................. 25
Figure 21. Assembling AC-DC Power Unit (2).................................................................................................. 26
Figure 22. Fixing Unit Bracket (1) .................................................................................................................... 27
Figure 23. Fixing Unit Bracket (2) .................................................................................................................... 27
Figure 24. Fixing Unit Bracket (3) .................................................................................................................... 28
Figure 25. Fixing Mounting Bracket on the Pole (1)........................................................................................ 29
Figure 26. Fixing Mounting Bracket on the Pole (2)........................................................................................ 29
Figure 27. Fixing Mounting Bracket on the Pole (3)........................................................................................ 30
Figure 28. Fixing Mounting Bracket on the Pole (4)........................................................................................ 30
Figure 29. Lifting RRH ...................................................................................................................................... 31
Figure 30. Fixing RRH on the Pole (1).............................................................................................................. 32
Figure 31. Fixing RRH on the Pole (2).............................................................................................................. 33
Figure 32. RRH Marking Dimensions............................................................................................................... 35
Figure 33. Marking .......................................................................................................................................... 36
Figure 34. Drilling ............................................................................................................................................ 37
Figure 35. Fixing Mounting Bracket on the Wall (1) ....................................................................................... 38
Figure 36. Fixing Mounting Bracket on the Wall (2) ....................................................................................... 38
Figure 37. Fixing RRH on the Wall (1).............................................................................................................. 39
Figure 38. Fixing RRH on the Wall (2).............................................................................................................. 40
Figure 39. RRH Tilting Adjustment (1)............................................................................................................. 41
Figure 40. RRH Tilting Adjustment (2)............................................................................................................. 42
Figure 41. RRH Tilting Adjustment (3)............................................................................................................. 43
Figure 42. RRH Swivelling Adjustment (1)....................................................................................................... 44
Figure 43. RRH Swivelling Adjustment (2)....................................................................................................... 45
Figure 44. RRH Swivelling Adjustment (3)....................................................................................................... 46
Figure 45. Fixing Mounting Bracket on the Pole (1)........................................................................................ 48
Figure 46. Fixing Mounting Bracket on the Pole (2)........................................................................................ 49
Figure 47. Fixing Mounting Bracket on the Pole (3)........................................................................................ 49

List of Figures
RT4401-48A Installation Manual v3.0 vi
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Figure 48. Fixing Mounting Bracket on the Pole (4)........................................................................................ 50
Figure 49. Lifting RRH ...................................................................................................................................... 51
Figure 50. Fixing RRHs on the 3Sector Pole Type (1) ...................................................................................... 52
Figure 51. Fixing RRHs on the 3Sector Pole Type (2) ...................................................................................... 53
Figure 52. Fixing RRHs on the 3Sector Pole Type (3) ...................................................................................... 54
Figure 53. Fixing Unit Bracket (1) .................................................................................................................... 55
Figure 54. Fixing Unit Bracket (2) .................................................................................................................... 55
Figure 55. Fixing Mounting Bracket on the Pole (1)........................................................................................ 57
Figure 56. Fixing Mounting Bracket on the Pole (2)........................................................................................ 58
Figure 57. Fixing Mounting Bracket on the Pole (3)........................................................................................ 58
Figure 58. Fixing Mounting Bracket on the Pole (4)........................................................................................ 59
Figure 59. Fixing RRHs on the Pole (1) ............................................................................................................ 60
Figure 60. Fixing RRHs on the Pole (2) ............................................................................................................ 61
Figure 61. Fixing RRHs on the Pole (3) ............................................................................................................ 61
Figure 62. Fixing RRHs on the Pole (4) ............................................................................................................ 62
Figure 63. Fixing Unit Bracket_Side Installation (1) ........................................................................................ 63
Figure 64. Fixing Unit Bracket_Side Installation (2) ........................................................................................ 63
Figure 65. Assembling Mounting Bracket Assembly_Pole Type (1) ................................................................ 64
Figure 66. Assembling Mounting Bracket Assembly_Pole Type (2) ................................................................ 65
Figure 67. Assembling Mounting Bracket Assembly_Pole Type (3) ................................................................ 65
Figure 68. Fixing Side by Side Bracket Assembly_Pole Type (1)...................................................................... 66
Figure 69. Fixing Side by Side Bracket Assembly_Pole Type (2)...................................................................... 66
Figure 70. Fixing Side by Side Bracket Assembly_Pole Type (3)...................................................................... 67
Figure 71. Fixing Side by Side Bracket Assembly_Pole Type (4)...................................................................... 67
Figure 72. Levelling Side by Side Bracket Assembly_Pole Type ...................................................................... 68
Figure 73. Fixing RRH on the Pole Type Side by Side Installation (1) .............................................................. 70
Figure 74. Fixing RRH on the Pole Type Side by Side Installation (2) .............................................................. 70
Figure 75. RRH Marking Dimensions............................................................................................................... 72
Figure 76. Marking .......................................................................................................................................... 72
Figure 77. Drilling ............................................................................................................................................ 73
Figure 78. Fixing Side by Side Bracket on the Wall (1) .................................................................................... 74
Figure 79. Fixing Side by Side Bracket on the Wall (2) .................................................................................... 75
Figure 80. Fixing Side by Side Bracket on the Wall (3) .................................................................................... 76
Figure 81. Fixing RRH on the Wall (1).............................................................................................................. 78
Figure 82. Fixing RRH on the Wall (2).............................................................................................................. 78
Figure 83. Procedure to Connect System Cable.............................................................................................. 80
Figure 84. Cable Connection Procedure.......................................................................................................... 81
Figure 85. RRH Cable Diagram (RRH only) ...................................................................................................... 85
Figure 86. RRH Cable Diagram (with Clip-on Antenna and AC-DC Power Unit).............................................. 86
Figure 87. Connecting Ground Cable_only RRH (1) ........................................................................................ 89
Figure 88. Connecting Ground Cable_with AC-DC Power Unit (2).................................................................. 89
Figure 89. Connecting Ground Cable_only RRH (3) ........................................................................................ 90
Figure 90. Connecting Ground Cable_with AC-DC Power Unit (4).................................................................. 91
Figure 91. Power Equipment Elements_RRH only .......................................................................................... 92
Figure 92. Power Equipment Elements_with AC-DC Power Unit.................................................................... 92
Figure 93. Connecting DC Link Cable (1) ......................................................................................................... 94
Figure 94. Connecting DC Link Cable (2) ......................................................................................................... 94
Figure 95. Connecting DC Link Cable (3) ......................................................................................................... 95
Figure 96. Connecting AC/DC Power Unit AC Power Cable (1) ....................................................................... 97
Figure 97. Connecting AC/DC Power Unit AC Power Cable (2) ....................................................................... 98
Figure 98. Connecting AC/DC Power Unit AC Power Cable (3) ....................................................................... 98
Figure 99. Connecting DC Power Cable (1) ................................................................................................... 100

List of Figures
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Figure 100. Connecting DC Power Cable (2) ................................................................................................... 101
Figure 101. Connecting DC Power Cable (3) ................................................................................................... 102
Figure 102. Optical Module Removal (1) ........................................................................................................ 104
Figure 103. Optical Module Removal (2) ........................................................................................................ 104
Figure 104. Optical Module Removal (3) ........................................................................................................ 105
Figure 105. Optical Module Insert .................................................................................................................. 105
Figure 106. Connecting CPRI Cable (1)............................................................................................................ 107
Figure 107. Connecting CPRI Cable (2)............................................................................................................ 107
Figure 108. Connecting CPRI Cable (3)............................................................................................................ 108
Figure 109. Connecting CPRI Cable (4)............................................................................................................ 109
Figure 110. Connecting CPRI Cable (5)............................................................................................................ 109
Figure 111. Connecting UDA Cable (1) ............................................................................................................ 111
Figure 112. Connecting UDA Cable (2) ............................................................................................................ 112
Figure 113. Connecting UDA Cable (3) ............................................................................................................ 113
Figure 114. Connecting UDA Cable (4) ............................................................................................................ 114
Figure 115. Connecting RET Cable (1) ............................................................................................................. 116
Figure 116. Connecting RET Cable (2) ............................................................................................................. 117
Figure 117. Connecting RET Cable (3) ............................................................................................................. 117
Figure 118. Connecting RET Cable (4) ............................................................................................................. 117
Figure 119. Connecting RF Cable (1) ............................................................................................................... 119
Figure 120. Connecting RF Cable (2) ............................................................................................................... 119
Figure 121. Connecting RF Cable (3) ............................................................................................................... 120
Figure 122. Connecting RF Cable (4) ............................................................................................................... 120
Figure 123. Connecting RF Cable (5) ............................................................................................................... 121
Figure 124. Connecting RF Cable (6) ............................................................................................................... 122
Figure 125. Connecting RF Cable (7) ............................................................................................................... 123
Figure 126. Assembling Cable Cover (1).......................................................................................................... 124
Figure 127. Assembling Cable Cover (2).......................................................................................................... 125
Figure 128. Installation Inspection Procedure ................................................................................................ 126

RT4401-48A Installation Manual v3.0 viii
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List of Tables
Table 1. Specifications ................................................................................................................................... 5
Table 2. AC/DC Power Unit Specifications ..................................................................................................... 6
Table 3. Basic Installation Tools..................................................................................................................... 9
Table 4. Parts and Tools for Assembling Clip on Antenna on RRH............................................................... 20
Table 5. Parts and Tools for Assembling AC-DC Power Unit on RRH ........................................................... 24
Table 6. Parts and Tools for Fixing Unit Bracket on RRH ............................................................................. 26
Table 7. Parts and Tools for Fixing Mounting Bracket on the Pole.............................................................. 28
Table 8. Parts and Tools for Fixing RRH on the Pole .................................................................................... 31
Table 9. Tools for Marking ........................................................................................................................... 34
Table 10. Parts and Tools for Drilling ............................................................................................................. 36
Table 11. Anchor Bolt Drill Bits and Hole Depth ............................................................................................ 36
Table 12. Parts and Tools for Fixing Mounting Bracket on the Wall.............................................................. 37
Table 13. Parts and Tools for Fixing RRH on the Wall.................................................................................... 39
Table 14. Tools for Tilting RRH....................................................................................................................... 41
Table 15. Tools for Swiveling RRH.................................................................................................................. 44
Table 16. Parts and Tools for Fixing Unit Bracket on RRH ............................................................................. 47
Table 17. Parts and Tools for Fixing Mounting Bracket on the Pole.............................................................. 48
Table 18. Parts and Tools for Fixing RRH on the 3Sector Pole Type .............................................................. 51
Table 19. Parts and Tools for Fixing Unit Bracket on RRH ............................................................................. 54
Table 20. Parts and Tools for Fixing Mounting Bracket on the Pole.............................................................. 56
Table 21. Tools for Fixing RRHs on the Pole................................................................................................... 59
Table 22. Parts and Tools for Fixing Unit Bracket on RRH ............................................................................. 62
Table 23. Parts and Tools for Fixing Side by Side Bracket on the Pole .......................................................... 64
Table 24. Parts and Tools for Fixing Side by Side Bracket Assembly_Pole Type............................................ 65
Table 25. Parts and Tools for fixing RRH_Pole Type Side by Side Installation ............................................... 69
Table 26. Tools for Marking ........................................................................................................................... 71
Table 27. Parts and Tools for Drilling ............................................................................................................. 73
Table 28. Bolt Drill Bits and Hole Depth......................................................................................................... 73
Table 29. Parts and Tools for Fixing Side by Side Bracket on the Wall .......................................................... 74
Table 30. Parts and Tools for Fixing RRH on the Wall.................................................................................... 77
Table 31. Recommended Minimum Allowed Cable bend Radius .................................................................. 82
Table 32. RRH Connection Cable ................................................................................................................... 85
Table 33. RRH Connection Cable ................................................................................................................... 86
Table 34. Parts and Tools for Connecting Ground Cable ............................................................................... 87
Table 35. Parts and Tools for Connecting Power Cable ................................................................................. 93
Table 36. Parts and Tools for Connecting AC Power Cable............................................................................ 96
Table 37. AC/DC Power Unit AC Power Cable Connector Pin Map................................................................ 96
Table 38. Parts and Tools for Connecting DC Power Cable............................................................................ 99
Table 39. DC Power Cable/Connector Pin Map ........................................................................................... 100
Table 40. Parts and Tools for connecting CPRI Cable .................................................................................. 106
Table 41. Parts and Tools for Connecting UDA Cable .................................................................................. 110
Table 42. UDA Cable Pin Map ...................................................................................................................... 111
Table 43. Parts for connecting RET Cable .................................................................................................... 115
Table 44. RET Cable Pin Map ....................................................................................................................... 116
Table 45. RF Cable Minimum Radius of Curvature ...................................................................................... 118
Table 46. Parts and Tools for connecting RF cable ...................................................................................... 118
Table 47. Parts and Tools for Assembling Cable Cover................................................................................ 124

List of Tables
RT4401-48A Installation Manual v3.0 ix
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Table 48. Construction Situation Checklist .................................................................................................. 127
Table 49. Standard Torque Value for Fastening Bolts ................................................................................. 133
Table 50. Brass Bolts Torque Value.............................................................................................................. 133
Table 51. Connector Connection Torque Value........................................................................................... 133

RT4401-48A Installation Manual v3.0 x
Copyright © 2019, All Rights Reserved.
Preface
This manual describes how to install the RT4401-48A (CBRS RRH) including
how to connect cables. This manual includes the following RRH:
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.ext into the /home/folder1/folder2/bin/ folder.
User Input and Console Screen Output Text
The input and output text is presented in the Courier New font. For example,
context <designated epc-context-name>
The CLI command is presented in capital letters and Courier New, bold style.
For example, Type the RTRV-NE-STS command in the input field.
The YANG object is presented in the small letters and boldface. For example,
eutran-cell-conf-idle

Preface
RT4401-48A Installation Manual v3.0 xi
Copyright © 2019, All Rights Reserved.
New and Changed Information
This section describes information that has been added/changed since the previous
publication of this manual.
The 'Installation' section and the 'Power Supply Connection' section of
Personal and Product Safety is updated.
Revision History
The following table lists all versions of this document.
Document Version
Publication Date
Remarks
1.0
January 2019
First version
2.0
January 2019
-
3.0
February 2019
-
Organization of This Document
Section
Title
Description
Chapter 1
Before Installation
This chapter introduces RRH and describes items
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
Clean the Optical Connectors
This annex describes the procedure of cleaning
the optical connector and cleaning tool.
Appendix C
Standard Torque
This annex describes the standard torque when
fastening the bolt.
Related Documentation
LTE eNB System Description

Preface
RT4401-48A Installation Manual v3.0 xii
Copyright © 2019, All Rights Reserved.
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.
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 UL 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 optical 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 individuals 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
live power and transmission sources during installation. Equipment must be
correctly installed 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.

Preface
RT4401-48A Installation Manual v3.0 xiii
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The CBRS RU product is installed on the Network Telecommunication Facilities.
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. 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.
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
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 UL 60950, the equipment must be connected to a safety
grounding point through 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.

Preface
RT4401-48A Installation Manual v3.0 xiv
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Power Supply Connection
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 UL 60950 providing double/reinforced
insulation between hazardous voltages and SELV/TNV circuits. Any battery must
be separated from hazardous voltages by reinforced insulation.
The RTN of the CBRS RU is not connected to Grounding.
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 through designated collection facilities appointed
by 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.
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.’
FCC Statement
This equipment has been tested and found to comply with the limits for a Class A

Preface
RT4401-48A Installation Manual v3.0 xv
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digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at
his own expense.
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.

Preface
RT4401-48A Installation Manual v3.0 xvi
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Equipment Markings
This marking on the product, accessories or literature indicates that the
product and its electronic accessories (for example. charger, headset, and
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.
Protective earth
RRH AC/DC power unit should be grounded.

RT4401-48A Installation Manual v3.0 1
Copyright © 2019, All Rights Reserved.
Chapter 1 Before
Installation
System View and External Interface
This section provides the physical structure of the RRH system and its interfaces.
System View
The figure below depicts the physical structure of the system.
Figure 1. System View (RRH only)
[Bottom View]
[Front View]
[Top View]
[Left View]
[Right View]
[Rear View]
13.9 (353.5)
8.6 (217.4)
Unit: in. (mm)
4.2
(105.5)

Chapter 1 Before Installation
RT4401-48A Installation Manual v3.0 2
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Figure 2. System View (with Clip-on: Antenna + AC-DC Power Unit)
System External Interface
The figure below depicts the external interface structure of the RRH system.
[Bottom View]
[Front View]
[Top View]
[Left View]
[Right View]
[Rear View]
16.2 (410.5)
11.4 (289.4)
Unit: in. (mm)
5.5
(138.5)

Chapter 1 Before Installation
RT4401-48A Installation Manual v3.0 3
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Figure 3. System External Interface (RRH only)
Figure 4. System External Interface (with Clip-on: Antenna + AC-DC Power Unit)
DC_PWR
Ground Terminal
UDA
L0
L1
RET
AC_PWR
ANT 4
ANT 3
ANT 2
ANT 1
DC_PWR
Ground Terminal
UDA
L0
L1
RET

Chapter 1 Before Installation
RT4401-48A Installation Manual v3.0 4
Copyright © 2019, All Rights Reserved.
When interoperating the AC-DC power unit, the ground cable must be connected
to the ground terminal of the AC-DC power unit.