BSS Preventive Maintenance

Alcatel-Lucent GSM

BSS Preventive Maintenance

Handbook

BSS Document

Procedural Handbook

Release B10

3BK 21221 AAAA PCZZA Ed.07

Status RELEASED

Short title Maintenance Handbook

All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Alcatel-Lucent.

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Contents

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1 Safety Rules and Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1 Safety Rules for Equipment Under Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.2 Electrostatic Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2.1 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.2.2 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.2.3 Transportation and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.2.4 Components and PBAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112.1 9120 BSC Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.2 9130 MFS Evolution/9130 BSC Evolution Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.3 MFS Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132.4 BTS Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.5 9125 TC Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182.6 External Battery Cabinet Outdoor Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.6.1 Case of Normal Operation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.6.2 Case of Severe Operation Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Tables

TablesTable 1: Micro-BTS Preventive Maintenance Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 2: G1 BTS and G2 BTS Preventive Maintenance Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 3: 9110 Micro BTS/9110-E Micro BTS Preventive Maintenance Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 4: 9100 BTS Preventive Maintenance Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 5: External Battery Cabinet Outdoor Version 3BK 26004 AAAB Preventive Maintenance Tasks . . . . 21

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Preface

Preface

Purpose The Maintenance Handbook describes how to perform BSS maintenance. Itbreaks down each maintenance task into a series of step-by-step instructions,and tells you what tools and materials are required.

The handbook covers the following equipment configurations:

9120 BSC

G2 TC

9125 TC

9135 MFS

9130 MFS/BSC Evolution

9100 BTS

9110 Micro BTS/9110-E Micro BTS

Micro-BTS M1M and M2M.

External Battery Cabinet Outdoor.

Note: Your network may not have some of the hardware included in the handbook.

For more information about these configurations, refer to the functionaldescription documents.

What’s New In Edition 07Description improvement in MFS Tasks (Section 2.3).

In Edition 06Section MFS Tasks (Section 2.3) was added.

In Edition 05Overall document quality was improved following a quality review.

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Preface

In Edition 04Update with the new equipment naming.

Update of system title.

In Edition 03Section 9130 MFS Evolution/9130 BSC Evolution Tasks (Section 2.2) wasadded.

In Edition 02Replacement interval for HEX was updated in Table 4.

Replacement interval for BATS was added in Table 4.

In Edition 01First release of the document.

Audience The handbook is intended for:

Maintenance engineers

System support engineers

Network technicians

Network operators.

Assumed Knowledge You must have a basic understanding of the following:

Alcatel-Lucent operations and maintenance concepts for the BSS

MO (SBL) hierarchies of the BSC and BTS

BSS hardware configurations

BSC, BTS, TSC and OMC-R terminals

MS-DOS

Telecommunications engineering

Anti-static procedures

RF test and measurement equipment

Signal analyzers as used on GSM networks

Electronic test equipment.

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1 Safety Rules and Precautions


This section contains the following safety rules and precautions:

Safety rules for equipment under power

Electrostatic precautions.

Injury from EquipmentPossible death or serious physical harm to personnel and damage to equipmentmay result from mishandling.While performing any maintenance tasks or procedures, you must follow anylocal safety requirements, and those mentioned in General Safety Instructionsfor Field Operations and this chapter.

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1.1 Safety Rules for Equipment Under PowerFor maintenance purposes, field operators may have to work on equipmentunder power (-48 VDC or -60 VCD). This means that it is possible to touchsome parts under power that are only protected by heavy fuses. Maintenanceactivities must be carried out carefully to avoid short circuits and to preventserious personal injury.

Remove all conductive objects from the hands, such as rings, bracelets,metallic wrist watches and so on. Use appropriate insulated tools formaintenance activities.

1.2 Electrostatic PrecautionsThe following precautions must be observed.

1.2.1 Environment

The following environment precautions must be followed:

Ensure that work benches, stools, and floor mats have a conducting surface

connected to ground. Before handling static-sensitive components and

assemblies, ground yourself to the conducting surface using an anti-staticwrist strap

When handling static-sensitive components and assemblies, do not wearor use clothes made of wool, nylon or any other synthetic material. Such

fabrics are major sources of static build up

When handling static-sensitive components and assemblies, do not usegloves and finger covers, unless they are made of cotton.

1.2.2 Tools

The following precautions must be followed when working with tools:

Ensure that all the tools which come into contact with static-sensitivecomponents are at the same voltage level as the conducting work surfaces

and floor mats. These tools include soldering irons, oscilloscopes, power

supplies, and metal parts of tools and fixtures that are used to hold,assemble or test PBAs.

Do not use rough cleaners or erasers to clean the gold-plated contactson PBAs

Do not mark a PBA with a lead pencil or any other writing instrument

Do not use synthetic brushes to clean equipment, and do not use dry

cleaning methods.

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1.2.3 Transportation and Storage

The following transportation and storage precautions must be followed:

Pack all containers used to transport and store static-sensitive components,

and use aluminium container tubes if possible. If not, insert the componentterminations into electrically conductive foam

Before shipping a PBA, wrap it in a conducting synthetic bag or in aluminiumfoil. Also pack the PBA in a polyethylene transport box

Before shipping a PBA which has MOS components, ensure that an

appropriate warning symbol is displayed on the package

Store spare PBAs in their appropriate polyethylene boxes. Keep the boxesclosed except when access to their contents is required

Do not store PBAs in an area where the air is polluted with smoke, dust,dangerous gases or other airborne particles that may cause damage

Do not stack PBAs side-by-side or on top of each other with the board

surfaces or components in contact with one another

Before cleaning a PBA, remove or disconnect the damage protection, suchas protective foam, to allow the PBA to be cleaned thoroughly. Replace the

damage protection upon completion of the task.

1.2.4 Components and PBAs

The following precautions must be followed when handling componenetsand PBAs:

Components and PBAs not in protective containers must only be handled bytrained personnel in static-controlled work areas

Before removing a PBA from an equipment rack, discharge any static by

touching the metal frame of the rack with your hand

Always handle a PBA by the edges

Do not handle or carry a PBA by any of the mounted components

Do not handle a PBA by the gold-plated contact terminals and do not apply

direct pressure to the components

Do not touch PBA connection pins or conductor paths

Do not touch PBAs with wet hands

Place PBAs that have been removed during maintenance with the soldered

side downwards on a conductive surface

Do not scratch or rub the soldered side of a PBA with a sharp or rough object

Do not repair PBAs in the switch room

Do not handle components and assemblies by their leads

Do not use excessive force when inserting connection boards.

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2 Preventive Maintenance


This section lists preventive maintenance tasks for the BSC and the BTS,and includes cross references to procedures in the handbook for carryingout those tasks.

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2.1 9120 BSC TasksThe following table shows the preventive maintenance tasks for the 9120 BSC,and the time intervals at which the tasks must be performed.

Prerequisites You must have read Safety Rules and Precautions (Section 1)before performing any preventive maintenance tasks.

Time Interval Task Impact on System Traffic

During routinemaintenance.

Check BSC (9120) clock. None.

10 years. Change SYS-CPRC (9120 BSC) so that the Lithiumbattery can be replaced by personnel in the repaircenter.

None.

2.2 9130 MFS Evolution/9130 BSC Evolution TasksThe following table shows the preventive maintenance tasks for the different9130 MFS Evolution/9130 BSC Evolution, and the time intervals at which thetasks must be performed.



6 years. Replace battery on OMCP/CCP board. None.

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2.3 MFS TasksThe following table shows the preventive maintenance tasks for the different9135 MFS/9130 MFS Evolution, and the time intervals at which the tasksmust be performed.


After eachimportant networkmodification

Save the MIB MFS backup in a safe place regurarly.Every day, an automatic backup is performed by theMFS. However, this MIB backup is saved only in theMFS.

To secure the MIB backup availability, time to time theMIB backup must be saved in a safe place: OMC is afirst option. In the OMC, there is a tool "MFS BACKUPMANAGER" able to upload/download the MIB backupsfrom/to the MFS.

A manual MIB backup should be performed after eachimportant network modification in terms of:

Gb configuration

IP configuration in MFS

AterMux configuration

The MIB backup/restore procedure are described inthe IMT userguide manual.

None.

Perform systembackup after eachnew release

A system backup should be done after each migrationto a new release or after each installation from scratch.The system backup is able to retrieve the MFS stabilityin case of hardware issues.

The system backup and restore procedure aredescribed in MFS Maintenance handbook.

None.

After eachmaintenanceoperation(hardware orsoftware)

Perform Sanity Check MFS regurarly.

The sanity Check of the MFS permits to check the"health" of the MFS like:

Check the partition capacity

Check the stations / GPU stability

Check the IP configuration

The sanity check should be performed regurarly andshould be mandatory.

None.

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2.4 BTS TasksThe following tables show the preventive maintenance tasks for the differentgenerations and versions of the BTS. The tables also show the time intervals atwhich the tasks must be performed.



Adjust SMFG. None.1 year.

Inspect antenna and Micro-BTS external casing. None.

Table 1: Micro-BTS Preventive Maintenance Tasks

Time Interval Task Impact on System Traffic Indoor Outdoor

1 year Check residual current device(G2 BTS).

None. - X

6 months. Adjust MFGE frequency (G1BTS).

None. X X

Check BBU2 (G2 BTS). None. - X

Check BU60 voltage (G2 BTS). None. - X

Check smoke detector (G2BTS).

None. - X

Check water detection floatswitch (G2 BTS).

None. - X

1 year.

Adjust STSE frequency (G2BTS).

Normally none, but refer to theBTS Corrective MaintenanceHandbook for more details.

X X

2 years. Check BU60 capacity (G2BTS).

None. - X

4 years. Replace BBU2 (G2 BTS). Normally none, but refer to theBTS Corrective MaintenanceHandbook for more details.

- X

4-6 years. Replace BU60 (G2 BTS):

every 4 years, if external

ambient temperature above40 [ugrave]C

every 6 years otherwise.

None. - X

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Replace LPSG surge arrestorcapsule (G2 BTS).

None. - X5 years.

Replace smoke detector (G2BTS).

None. - X

Table 2: G1 BTS and G2 BTS Preventive Maintenance Tasks


** Check lightning protection for SSC (SSCLP). None.

1 year*** Adjust CGU frequency. None.

4-6 years* Exchange fan cassette (included in MFCC)

every 4 years, if ambient temperature > 25 [ugrave]C

every 6 years, if ambient temperature <= 25 [ugrave]C.

None.

4-10 years* Replace SSCB (battery for SSC)

every 4 years, if external ambient temperature above30 [ugrave]C

every 6 years, if external ambient temperature

between 23 [ugrave]C and 30 [ugrave]C

every 8 years, if external ambient temperature

between 15 [ugrave]C and 23 [ugrave]C

every 10 years, if external ambient temperature below15 [ugrave]C.

None (if main power isoperating).

Replace SSCFH (fan and heater internal for SSC). None.8 years*

Replace SSCF (fan external for SSC). None.

* Recommended, but not mandatory.

** Each time an intervention is performed on the SSC.

***

- Adjust CGU frequency if local oscillator is used.

- Adjust CGU frequency of master in master/slave configuration if local oscillator is used.

- Adjustment not required if PCM or GPS sources are used.

Table 3: 9110 Micro BTS/9110-E Micro BTS Preventive Maintenance Tasks

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** Check AC link lightningprotection.

None. - X

** Check residual current device. None. - X

1 year*** Adjust CGU frequency. None. X X

Check smoke detector(according to local regulations).

None. - X1 year*

Check water detection floatswitch.

None. - X

3-7 years Replace BU41, BU100 orBU101:

every 3 years, if externalambient temperature above

30�C

every 4 years, if externalambient temperature

between 23�C and 30�C


ambient temperature



ambient temperature below15�C.

Normally none, but refer tothe BTS 9100/9110 Micro BTSCorrective MaintenanceHandbook or the BTSCorrective MaintenanceHandbook for more details.

X X

4-10 years Replace BATS:


30�C

every 6 years, if externalambient temperature


every 10 years, if externalambient temperature below

23�C.

Normally none, but refer tothe 9100 BTS/9110 MicroBTS Corrective MaintenanceHandbook for more details.

X -

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4-5 years Replace HEX2, HEX3/HEX4,HEX5 or HEX8/HEX9:

every 5 years, if externalambient temperature equal

to or below 25�C


25�C.

None. - X

5 years* Replace smoke detector. None. - X

8 years Replace FANUs. None. X X

10 years Replace PCM over voltageprotection.

None. - X

* Recommended, but not mandatory.

** Each time an intervention is performed on the BTS.

***

- Adjust CGU frequency if local oscillator is used.

- Adjust CGU frequency of master in master/slave configuration if local oscillator is used.

- Adjustment not required if PCM or GPS sources are used.

Table 4: 9100 BTS Preventive Maintenance Tasks

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2.5 9125 TC TasksThe following table shows the preventive maintenance task for the 9125Transcoder, and the time interval at which the task must be performed.



8 years. Replace FANUs. None.

2.6 External Battery Cabinet Outdoor TasksThe following table shows the preventive maintenance task for the ExternalBattery Cabinet Outdoor, and the time interval at which the task must beperformed.



1 year. Cabinet General Maintenance:

Check the operation of door hinges and operationof door stay

Inspect the door seal for damage and clean it if

required

Check the security of all cable glands

Check the operation of the RCD twin socket

Check that the internall light operates

Ensure that no alarms are in operation

Clean the outer panels of the cabinet with a soapsolution

Record all maintenance data in a logbook to

guarantee warranty

Ensure that the cabinet is fully operational and

locked before leaving site.

None.

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2.6.1 Case of Normal Operation Conditions

The following table shows the preventive maintenance task for the ExternalBattery Cabinet Outdoor, and the time interval at which the task must beperformed in case of normal conditions operation.


1 year. Clean the compressor and fan inlet plenum. None.

6-10 years. Replace BU 101:

every 6 years, if frequent mains interruptionoccur

every 10 years, if only sporadic mains

interruptions occur

Normally none, but refer to the9100 BTS/9110 Micro BTS/9110-EMicro BTS Corrective MaintenanceHandbook or BTS CorrectiveMaintenance Handbook .

2.6.2 Case of Severe Operation Conditions

2.6.2.1 Case of Cabinet Variant 3BK 26004 AAAAThe following table shows the preventive maintenance task for the ExternalBattery Cabinet Outdoor, and the time interval at which the task must beperformed in case of severe conditions operation.

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TimeInterval Task

Impact on SystemTraffic

1 year. Air Conditioner Maintenance

Switch off the AC mains and Air conditioner circuit breaker

Remove the air conditioner cover panel

Clean the compressor and fan inlet plenum using the vaccum cleaneror compressed air

Remove the external fan module

Check the external fan for obstructions, cracks, missing blades andwiring integrity

With the external fan housing removed, use the vaccum cleaner to

clean the condenser coil of dust/debris

Check the copper pipe work for damage, corrosion or oil deposits

indicating refrigerant leakage

Replace the external fan housing

Check the condition of the evaporator find and clean it if required.Note that there should be minimal cleaning of the internal refrigerant

components as they are within the IP55 barrier

Remove the internal fan module and check for any damage to fanimpeller as indicated in step 5

Replace the internal fan module

Check for any loose connections to the control board

Ensure that the seal around the Air conditioner chassis is intact and in

good condition

Check all mounting fixing for tightness

Replace the cover panel

Switch on the AC mains switch and Air conditioner circuit breaker,

and test the operation of the ACU. Ensure that there is no excessivevibration from the compressor fans

Check that the air delivery is noticeably cooler than the air drawn in

at top of ACU

None.

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2.6.2.2 Case of Cabinet Variant 3BK 26004 AAAB

TimeInterval Task

Impact on SystemTraffic

1 year. Air Conditioner Maintenance

Switch off the AC mains and Air conditioner circuit breaker

Remove the air conditioner from the cabinet

Ensure that the seal around the Air conditioner chassis is intact and ingood condition

Remove the ambient side radial fan

Steam clean the condenser or wash it with an environmentally safecleaning fluid

Fit the ACU to the door and fix it with the screws

Check all mounting fixing for tightness

Allow a two hours delay in upright position before the unit is takenback into operation

Switch on the AC mains switch and Air conditioner circuit breaker,

and test the operation of the ACU. Ensure that there is no excessivevibration from the compressor fans

Check that the air delivery is noticeably cooler than the air drawn in attop of ACU for temperatures higher than 25C

None.

Table 5: External Battery Cabinet Outdoor Version 3BK 26004 AAAB Preventive Maintenance Tasks

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