Samsung RT4401-48A Users 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

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

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		Contents
	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

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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

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		List of Figures
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
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	List of Figures
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

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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

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		List of Tables
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	ix
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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

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Preface

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

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Preface

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.

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Preface

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.

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Preface

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

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Preface

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.

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Preface

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.

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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)

Unit: in. (mm)

	4.2							(105.5)
		[Top View]
	8.6 (217.4)
[Left View]							13.9 (353.5)			[Right View]	[Rear View]
		[Front View]

[Bottom View]

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Chapter 1 Before Installation

Figure 2. System View (with Clip-on: Antenna + AC-DC Power Unit)

Unit: in. (mm)

	5.5				(138.5)
	[Top View]
	11.4 (289.4)
	16.2 (410.5)
[Left View]						[Right View]	[Rear View]
	[Front View]

[Bottom View]

System External Interface

The figure below depicts the external interface structure of the RRH system.

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Figure 3. System External Interface (RRH only)

ANT 1

ANT 2

ANT 3

ANT 4

RET

DC_PWR

UDA	Ground Terminal

L1

L0

Figure 4. System External Interface (with Clip-on: Antenna + AC-DC Power Unit)

RET

AC_PWR

Ground Terminal

UDA

DC_PWR

L1

L0

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When interoperating the AC-DC power unit, the ground cable must be connected to the ground terminal of the AC-DC power unit.

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Specifications

The table below outlines the main specifications of the RRH.

Table 1. Specifications

	Item		RT4401-48A
	Air Technology		LTE
	Band		Band 48 (3.5 GHz)
	Operating Frequency (MHz)		3550 to 3700
	RF Chain		4TX/4RX
	Input Power		-48 V DC (-38 to -57 V DC, 1 SKU), with clip-on AC-DC
			converter (Option)
	Dimension (W × D × H) (mm)		8.55 in. (217.4) × 4.15 in. (105.5) × 13.91 in. (353.5)
			* RRH only
			11.39 in. (289.4) × 5.45 in. (138.5) × 16.16 in. (410.5)
			* with Clip-on antenna, AC-DC power unit
	Cooling		Natural convection
	Unwanted Emission		3GPP 36.104 Category A
			[B48]: FCC 47 CFR 96.41 e)
	Spectrum Analyzer		TX/RX Support
	Antenna Type		Integrated (Clip-on) antenna (Option),
			External antenna (Option)
	Operating Humidity		5 to 100 [%] (RH), condensing, not to exceed 30 g/m3
			absolute humidity
	Altitude		-60 to 1,800 m
	Earthquake		Telcordia Earthquake Risk Zone4 (Telcordia GR-63-
			CORE)
	Vibration in Use		Office Vibration
	Transportation Vibration		Transportation Vibration
	Noise		Fanless (natural convection cooling)
	Wind Resistance		Telcordia GR-487-CORE, Section 3.34
	EMC		FCC Title 47, CFR Part 96
	Safety		UL 60950-1 2nd ED

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Item	RT4401-48A
	UL 62368-1
	UL 60950-22
RF	FCC Title 47, CFR Part 96

The table below outlines the AC/DC power unit specifications of the RRH system.

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Cautions for Installation

Observe the safety instructions described in this section when installing the system. Installation should be done 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.

Use guardrails or fences to block open areas such as ditches, open roof areas, and scaffolds.

Install the system in the restricted access area.

While Installing

During installation, ensure the following:

The system power must be cut off before installing.

Ensure that the power switch of the power supply is off when installing the system. Installing the system with power on may cause system damage or fatal human injury when connecting or disconnecting cables.

Ensure that workers wear protection gloves and goggles to prevent injury from debris while drilling holes in a wall or ceiling.

Do not wear accessories such as watches and rings to prevent electrical shock.

When using the AC / DC converter, connect the DC power cable first before connecting the AC power.

Cover unused ports with a cap. This prevents foreign substances from entering into the unused ports.

To prevent foreign substances, outdoor air, and moisture from entering the cable inlet (including cable gland and conduit), finish the inlet as follows:

-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 silicone.

When operator installs the RRH, the RRH must be within the protective angle (left/right side 45° each from the central axis) to prevent the RRH from lightning

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damage.

Lightning Rod

45° 45°

RRH

After Installing

After installation, remove any debris produced during the work and clean up the installation site.

In the system, the laser beam light runs through the optical cable. The workers must handle the optical cables with care as the laser beam can seriously damage the eyes.

When using the AC / DC converter, if servicing of the RRU is required, disconnect the AC power first.

Ensure that the workers do not damage installed cables while cleaning the system.

While cleaning the power supply device, take precaution that the device does not come in contact with foreign objects that may cause power failure.

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Installation Tools

The basic tools required for installation are listed in the table below. The additional tools required for each site need to be identified and arranged during a site survey before starting the installation.

Table 3. Basic Installation Tools

	No.	Name		Specification	Purpose of use
	1	Torque Driver		Apply a torque range	Fastening M6 SEMS
				: 20 to 90 lbf·in
				Apply a torque range	Fastening M3, M4 Torx screw
				: 6 to 22 lbf·in
2		Screw Driver Bit		'+', No. 3	Fastening M6 SEMS
3		Screw Driver		'+', No. 3	Loosening M6 SEMS
4		Torx Screw Driver		(T10H/T2H/T25H)	Loosening Torx screw
5		Torx Driver Bit		T10H	Fastening Torx screw (T10H)
				T20H	Fastening Torx screw (T20H)
				T25H	Fastening Torx screw (T25H)
6		Torque Wrench		Apply a torque range	Tightening M6 Hexagonal. bolt
				: 10 to 50 lbf·in
				Apply a torque range	Tightening M10, M12 hexagonal.
				: 100 to 400 lbf·in	bolt
7		Torque Wrench Spanner		Apply hexagonal.bolt head: 10 mm	Tightening M6 hexagonal.bolt
		Head		(for 10 to 50 lbf·in)
				Apply hexagonal. bolt head: 13	Tightening M8 hexagonal.bolt
				mm (for 100 to 400 lbf·in)
				Apply hexagonal.bolt head: 17 mm	Tightening M10 hexagonal.nut
				(for 100 to 400 lbf·in)
				Apply hexagonal.bolt head: 19 mm	Tightening M12 hexagonal.nut
				(for 100 to 400 lbf·in)
8		Spanner		10 mm	Tightening M6 hexagonal. bolt
				13 mm	Tightening M8 hexagonal. bolt
				17 mm	Tightening M10 hexagonal. bolt
				19 mm	Tightening M12 hexagonal. bolt
9		Mini DIN Male Torque		TQ-78-F8	Tightening 4.3-10 and mini din
		Wrench			connector
10		Tape Measure		16 ft./150 ft.	Measuring length
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