Huawei RRU3279 2600 User Manual

RRU

Hardware Maintenance Guide

Issue 16

Date 2015-03-23

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: support@huawei.com

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	i
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	About This Document

About This Document

Purpose

This document describes routine maintenance procedures for an RRU such as equipment maintenance and power-on and power-off operations. It also explains how to replace the RRU and optical modules.

The RRUs involved in this document are the RRUs in SingleRAN, GSM, UMTS, LTE FDD, and LTE TDD modes.

If LTE is used rather than LTE FDD or LTE TDD in this document, the LTE mode can be the LTE FDD mode or LTE TDD mode. If eNodeB is used rather than eNodeB FDD or eNodeB TDD in this document, the eNodeB can be an eNodeB FDD or a eNodeB TDD.

Product Versions

The following table lists the product versions related to this document.

Product Name	Solution Version	Product Version

DBS3900	SRAN6.0 and later versions	V100R004C00 and later
		versions

	GBSS13.0 and later versions	V100R013C00 and later
		versions

	RAN13.0 and later versions	V200R013C00 and later
		versions

	eRAN2.1 and later versions	V100R003C00 and later
		versions

	eRAN2.1 TDD and later	V100R003C00 and later
	versions	versions

Intended Audience

This document is intended for:

System engineers

Site maintenance personnel

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	ii
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	About This Document

Organization

1 Changes in RRU Hardware Maintenance Guide

This chapter describes the changes in RRU Hardware Maintenance Guide.

2 Preventative Maintenance Items for an RRU

Preventative maintenance improves the reliability of the RRU. You are advised to perform scheduled maintenance yearly.

3 Powering On and Off an RRU

After an RRU is powered on, check the status of RRU indicators and voltage. Before the RRU is powered off, follow the normal power-off or emergent power-off procedure as required.

4 Replacing an RRU

This chapter describes the procedures and precautions for replacing a common RRU, replacing a blade RRU, and replacing a non-blade RRU with a blade RRU by reusing mounting kits. Replacing an RRU interrupts all the services carried by the RRU and causes alarms.

5 Replacing an Optical Module

An optical module implements optical-electrical conversion, enabling optical transmission between an RRU and other devices. You must disconnect optical fibers from an optical module before replacing the optical module. Disconnecting the optical fibers interrupts the transmission of CPRI signals.

6 Adding RRUs

This chapter describes the procedure and precautions for adding RRUs with different exteriors on a pole.

Conventions

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol	Description

	Indicates an imminently hazardous situation which, if not
	avoided, will result in death or serious injury.

	Indicates a potentially hazardous situation which, if not
	avoided, could result in death or serious injury.

	Indicates a potentially hazardous situation which, if not
	avoided, may result in minor or moderate injury.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	iii
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide		About This Document

	Symbol	Description

		Indicates a potentially hazardous situation which, if not
		avoided, could result in equipment damage, data loss,
		performance deterioration, or unanticipated results.
		NOTICE is used to address practices not related to personal
		injury.

		Calls attention to important information, best practices and
		tips.
		NOTE is used to address information not related to personal
		injury, equipment damage, and environment deterioration.

General Conventions

Convention	Description

Times New Roman	Normal paragraphs are in Times New Roman.

Boldface	Names of files, directories, folders, and users are in
	boldface. For example, log in as user root.

Italic	Book titles are in italics.

Courier New	Terminal display is in Courier New.

Command Conventions

Convention	Description

Boldface	The keywords of a command line are in boldface.

Italic	Command arguments are in italics.

[ ]	Items (keywords or arguments) in brackets [ ] are optional.

{ x \| y \| ... }	Optional items are grouped in braces and separated by
	vertical bars. One item is selected.

[ x \| y \| ... ]	Optional items are grouped in brackets and separated by
	vertical bars. One item is selected or no item is selected.

{ x \| y \| ... } *	Optional items are grouped in braces and separated by
	vertical bars. A minimum of one item or a maximum of all
	items can be selected.

[ x \| y \| ... ] *	Optional items are grouped in brackets and separated by
	vertical bars. Several items or no item can be selected.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	iv
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	About This Document

GUI Conventions

Convention	Description

Boldface	Buttons, menus, parameters, tabs, windows, and dialog titles
	are in boldface. For example, click OK.

>	Multi-level menus are in boldface and separated by the ">"
	signs. For example, choose File > Create > Folder.

Keyboard Operation

Format	Description

Key	Press the key. For example, press Enter and press Tab.

Key 1+Key 2	Press the keys concurrently. For example, pressing
	Ctrl+Alt+A means the three keys should be pressed
	concurrently.

Key 1, Key 2	Press the keys in turn. For example, pressing Alt, A means
	the two keys should be pressed in turn.

Mouse Operation

Action	Description

Click	Select and release the primary mouse button without
	moving the pointer.

Double-click	Press the primary mouse button twice continuously and
	quickly without moving the pointer.

Drag	Press and hold the primary mouse button and move the
	pointer to a certain position.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	v
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	Contents

Contents

About This Document....................................................................................................................		ii
1 Changes in RRU Hardware Maintenance Guide....................................................................		1
2 Preventative Maintenance Items for an RRU ..........................................................................		8
3 Powering On and Off an RRU..................................................................................................		10
3.1 Powering On an RRU .................................................................................................................................................		10
3.2	Powering Off an RRU.................................................................................................................................................	11
4 Replacing an RRU.......................................................................................................................		13
4.1	Preparations Before Replacement...............................................................................................................................	13
4.2	Replacing an RRU Using Assembled Mounting Kits .................................................................................................	15
4.2.1 Replacing an RRU Using a Mounting Kit for a Common RRU ..............................................................................		15
4.2.2 Replacing an RRU Using a Mounting Kit for a Blade RRU ...................................................................................		20
4.3	Replacing an RRU Using Non-assembled Mounting Kits..........................................................................................	23
4.4	Replacing a Non-Blade RRU with a Blade RRU .......................................................................................................	27
4.5	Replacing Blade RRUs in the ICR and Adding Blade RRUs to the ICR....................................................................	33
4.6	Operations After Replacement ....................................................................................................................................	38
5 Replacing an Optical Module...................................................................................................		40
6 Adding RRUs ...............................................................................................................................		43

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	vi
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	1 Changes in RRU Hardware Maintenance Guide

1 Changes in RRU Hardware Maintenance

Guide

This chapter describes the changes in RRU Hardware Maintenance Guide.

16 (2015-03-23)

This is the sixteenth commercial release.

Compared with issue 15 (2015-02-10), this issue does not include any new information.

Compared with issue 15 (2015-02-10), this issue includes the following change:

Topic	Change Description

3.2 Powering Off an RRU	Added the procedure of checking whether
	the power-off operation succeeds.

4.2.1 Replacing an RRU Using a Mounting	Added the procedure and caution.
Kit for a Common RRU
4.2.2 Replacing an RRU Using a Mounting
Kit for a Blade RRU

Compared with issue 15 (2015-02-10), no information is deleted from this issue.

15 (2015-02-10)

This is the fifteenth commercial release.

Compared with issue 14 (2015-01-30), this issue does not include any new information.

Compared with issue 14 (2015-01-30), this issue includes the following change:

Topic	Change Description

4.4 Replacing a Non-Blade RRU with a	Modified the context and procedure of
Blade RRU	replacing a Non-Blade RRU with a Blade
	RRU.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	1
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	1 Changes in RRU Hardware Maintenance Guide

Compared with issue 14 (2015-01-30), no information is deleted from this issue.

14 (2015-01-30)

This is the fourteenth commercial release.

Compared with issue 13 (2014-11-10), this issue does not include any new information. Compared with issue 13 (2014-11-10), this issue includes the following change:

Topic	Change Description

4.4 Replacing a Non-Blade RRU with a	Modified the context and procedure of
Blade RRU	replacing a Non-Blade RRU with a Blade
	RRU.

Compared with issue 13 (2014-11-10), no information is deleted from this issue.

13 (2014-11-10)

This is the thirteen commercial release.

Compared with issue 12 (2014-10-20), this issue does not include any new information. Compared with issue 12 (2014-10-20), this issue includes the following change:

Topic	Change Description

4.4 Replacing a Non-Blade RRU with a	Modified the context and procedure of
Blade RRU	replacing a Non-Blade RRU with a Blade
	RRU.

Compared with issue 12 (2014-10-20), no information is deleted from this issue.

12 (2014-10-20)

This is the twelfth commercial release.

Compared with issue 11 (2014-08-20), this issue does not include any new information. Compared with issue 11 (2014-08-20), this issue includes the following change:

Topic	Change Description

4.4 Replacing a Non-Blade RRU with a	Added the figure of waterproofing a
Blade RRU	connector of the alarm cable.

Compared with issue 11 (2014-08-20), no information is deleted from this issue.

11 (2014-08-20)

This is the eleventh commercial release.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	2
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	1 Changes in RRU Hardware Maintenance Guide

Compared with issue 10 (2014-01-20), this issue does not include any new information.

Compared with issue 10 (2014-01-20), this issue includes the following change:

Topic	Change Description

4.5 Replacing Blade RRUs in the ICR and	Added the description that the 18 L blade
Adding Blade RRUs to the ICR	RRU does not support the indoor
	centralized installation.

Compared with issue 10 (2014-01-20), no information is deleted from this issue.

10 (2014-01-20)

This is the tenth commercial release.

Compared with issue 09 (2013-09-26), this issue does not include any new information. Compared with issue 09 (2013-09-26), this issue includes the following change:

Topic		Change Description

4.1	Preparations Before Replacement	Added the information about U2000.

4.6	Operations After Replacement

6 Adding RRUs

Compared with issue 09 (2013-09-26), no information is deleted from this issue.

09 (2013-09-26)

This is the ninth commercial release.

Compared with issue 08 (2013-07-30), this issue includes the following new information: 4.5 Replacing Blade RRUs in the ICR and Adding Blade RRUs to the ICR.

Compared with issue 08 (2013-07-30), this issue includes the following change:

Topic	Change Description

5 Replacing an Optical Module	Optimized the description of the function
	that the optical modules are hot-swappable.

Compared with issue 08 (2013-07-30), no information is deleted from this issue.

08 (2013-07-30)

This is the eighth commercial release.

Compared with issue 07 (2013-05-30), this issue includes the following new information:

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	3
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	1 Changes in RRU Hardware Maintenance Guide

4.1 Preparations Before Replacement

4.4 Replacing a Non-Blade RRU with a Blade RRU

4.6 Operations After Replacement

6 Adding RRUs

Compared with issue 07 (2013-05-30), this issue includes the following changes:

	Topic			Change Description

	4.2.1 Replacing an RRU Using a Mounting			Added the scenario where attachment plate
	Kit for a Common RRU			B for a common RRU is installed together
				with mounting kit A for a common RRU
				and the figure showing the scenario.

	4.2.1 Replacing an RRU Using a Mounting			Changed preparations before replacement to
	Kit for a Common RRU			4.1 Preparations Before Replacement and
				operations after replacement to 4.6
	4.2.2 Replacing an RRU Using a Mounting			operations after replacement to 4.6
	4.2.2 Replacing an RRU Using a Mounting			Operations After Replacement.
	Kit for a Blade RRU			Operations After Replacement.
	Kit for a Blade RRU

Compared with issue 07 (2013-05-30), no information is deleted from this issue.

07 (2013-05-30)

This is the seventh commercial release.

Compared with issue 06 (2013-04-28), this issue includes the following change:

Topic	Change Description

5 Replacing an Optical Module	Changed the description "An optical module
	is hot-swappable if the CPRI port is not
	changed." to "An optical module or a CPRI
	fiber optic cable cannot be inserted into or
	removed from this CPRI port when the
	power supply is connected."

Compared with issue 06 (2013-04-28), no information is deleted from or included in this issue.

06 (2013-04-28)

This is the sixth commercial release.

Compared with issue 05 (2012-12-30), this issue includes the following changes:

	Topic		Change Description

	4.2.1 Replacing an RRU Using a Mounting		Added the description of replacing an RRU
	Kit for a Common RRU		using a mounting kit for a common RRU.

	5 Replacing an Optical Module		Added the steps of powering on and off an


Issue 16 (2015-03-23)		Huawei Proprietary and Confidential		4
		Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide		1 Changes in RRU Hardware Maintenance Guide

	Topic		Change Description

			RRU.

Compared with issue 05 (2012-12-30), no information is deleted from or included in this issue.

05 (2012-12-30)

This is the fifth commercial release.

Compared with issue 04 (2012-09-15), this issue includes the following new information:

 4.2.2 Replacing an RRU Using a Mounting Kit for a Blade RRU Compared with issue 04 (2012-09-15), this issue includes the following changes:

Topic	Change Description

3.1 Powering On an RRU	Optimized the contents in these sections.

3.2 Powering Off an RRU

4.2.1 Replacing an RRU Using a Mounting	Modified the title and added the information
Kit for a Common RRU	of RRU mounting kits.

Compared with issue 04 (2012-09-15), no information is deleted from this issue.

04 (2012-09-15)

This is the fourth commercial release.

Compared with issue 03 (2012-07-20), this issue does not include any new information. Compared with issue 03 (2012-07-20), this issue includes the following change:

Topic	Change Description

4.2.1 Replacing an RRU Using a Mounting	Optimized the contents in these sections.
Kit for a Common RRU

5 Replacing an Optical Module

Compared with issue 03 (2012-07-20), no information is deleted from this issue.

03 (2012-07-20)

This is the third commercial release.

Compared with issue 02 (2012-02-10), this issue does not include any new information. Compared with issue 02 (2012-02-10), this issue includes the following change:

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	5
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide		1 Changes in RRU Hardware Maintenance Guide

	Topic		Change Description

	4.2.1 Replacing an RRU Using a Mounting		Optimized the contents in this section.
	Kit for a Common RRU

Compared with issue 02 (2012-02-10), no information is deleted from this issue.

02 (2012-02-10)

This is the second commercial release.

Compared with issue 01 (2011-11-30), this issue does not include any new information. Compared with issue 01 (2011-11-30), this issue includes the following change:

Topic	Change Description

5 Replacing an Optical Module	Added the steps of querying the type of a
	faulty optical module.

Compared with issue 01 (2011-11-30), no information is deleted from this issue.

01 (2011-11-30)

This is the first commercial release.

This release incorporates the following documents to RRU Hardware Maintenance Guide.

RRU3201 Hardware Maintenance Guide

RRU3203 Hardware Maintenance Guide

RRU3220 Hardware Maintenance Guide

RRU3222 Hardware Maintenance Guide

RRU3808 Hardware Maintenance Guide

RRU3221 Hardware Maintenance Guide

RRU3240 Hardware Maintenance Guide

RRU3004 (DC) Hardware Maintenance Guide

RRU3004 (AC) Hardware Maintenance Guide

RRU3008 (AC) V1 Hardware Maintenance Guide

RRU3008 (AC) V2 Hardware Maintenance Guide

RRU3008 (DC) V1 Hardware Maintenance Guide

RRU3008 (DC) V2 Hardware Maintenance Guide

RRU3908 (AC) V1 Hardware Maintenance Guide

RRU3908 (AC) V2 Hardware Maintenance Guide

RRU3908 (DC) V1 Hardware Maintenance Guide

RRU3908 (DC) V2 Hardware Maintenance Guide

RRU3804&RRU3901E&3806 Hardware Maintenance Guide

RRU3804&RRU3901E&3806 (AC) Hardware Maintenance Guide

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	6
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	1 Changes in RRU Hardware Maintenance Guide

RRU3805 Hardware Maintenance Guide

RRU3808 Hardware Maintenance Guide

RRU3828 Hardware Maintenance Guide

RRU3928 Hardware Maintenance Guide

RRU3929 Hardware Maintenance Guide

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	7
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	2 Preventative Maintenance Items for an RRU

2 Preventative Maintenance Items for an RRU

Preventative maintenance improves the reliability of the RRU. You are advised to perform scheduled maintenance yearly.

When working at heights, the maintenance personnel need to exercise caution to avoid falling of objects, which may cause injuries or death. In addition, the maintenance personnel must always wear helmets in the working area and avoid dangerous areas.

The items in the following checklist are not mandatory but strongly recommended. Table 2-1 lists the preventative maintenance items for an RRU.

Table 2-1 Preventative maintenance items for an RRU

	No.	Item

	1	All RRUs are properly installed and in good condition.

	2	The cable seals at the entry points of the cabinet are in good condition.

	3	All ground cables are properly grounded.

	4	All RF cables are free from wear, cuts, cracks, or other damage.

	5	All RF cable connectors are sealed properly.

	6	All RF cable conduits are in good condition.

	7	All power cables are free from wear, cuts, cracks, or other damage.

	8	All power cable connectors are in good condition.

	9	All power cable conduits are in good condition.

	10	All shield layers of power cables are in good condition.

	11	All power cables are in good condition.


Issue 16 (2015-03-23)		Huawei Proprietary and Confidential	8
		Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide			2 Preventative Maintenance Items for an RRU

	No.	Item

	12	All CPRI optical fibers are free from wear, cuts, cracks, or other damage.

	13	All screws are tightened on the cover plate of the maintenance cavity.

	14	All RET cables (optional) are free from wear, cuts, cracks, or other damage.

	15	All RET cable (optional) connectors are sealed properly.

	16	All alarm cables (optional) are installed and free from any damage.

	17	All monitoring cables (optional) are installed and free from any damage.

If any of the requirements in the checklist is not met, perform the following corrective actions.

1.Tighten all connections.

2.Report the problems to the supervisor so that the qualified engineers can be assigned to maintain the parts on the tower.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	9
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	3 Powering On and Off an RRU

3 Powering On and Off an RRU

About This Chapter

After an RRU is powered on, check the status of RRU indicators and voltage. Before the RRU is powered off, follow the normal power-off or emergent power-off procedure as required.

3.1 Powering On an RRU

This section describes how to power on an RRU. Observe the indicators on the RRU to check the running status.

3.2 Powering Off an RRU

An RRU can be powered off in two ways: normal power-off and emergency power-off. You need to perform a normal power-off in scenarios such as an equipment swap or foreseeable regional blackout, and you need to perform an emergency power-off in emergencies such as a fire, smoke, or water damage in the equipment room.

3.1 Powering On an RRU

This section describes how to power on an RRU. Observe the indicators on the RRU to check the running status.

Prerequisites

The RRU hardware is installed and RRU cable connections are secure.

The input voltage of a DC RRU ranges from -36 V DC to -57 V DC.

The input voltage of an AC RRU ranges from 100 V AC to 240 V AC.

Context

After unpacking an RRU, you must power on it within 24 hours. If you power off the RRU for maintenance, you must restore power to the RRU within 24 hours.

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	10
	Copyright © Huawei Technologies Co., Ltd.

RRU
Hardware Maintenance Guide	3 Powering On and Off an RRU

Procedure

Step 1 On the power epuipment for the RRU, set the corresponding circuit breaker to ON or insert a corresponding EPC connector.

Do not look into the optical module without eye protection after the RRU is powered on.

Step 2 Wait 3 to 5 minutes, and then check the status of the indicators on the RRU. For details, see section "RRU Indicators" in the hardware description of the corresponding RRU.

If RRUs are cascaded, check the status of all RRU indicators.

Step 3 Take corresponding actions based on the status of the indicators.

If...	Then...

The RRU is working properly	End the power-on check task.

The RRU is faulty	On the power equipment for the RRU, set
	the corresponding circuit breaker to OFF or
	remove the corresponding EPC connector.
	Rectify the fault, and then go to Step 1.

----End

3.2 Powering Off an RRU

Procedure

Normal power-off

If RRUs are cascaded, services carried on the lower-level RRU may be interrupted during the replacement of the upper-level RRU.

1.On the power equipment for the RRU, set the corresponding circuit breaker to OFF or remove the corresponding EPC connector.

Emergency power-off

Issue 16 (2015-03-23)	Huawei Proprietary and Confidential	11
	Copyright © Huawei Technologies Co., Ltd.

+ 39 hidden pages