preventive maintenance manual_siemens bts

Nokia Siemens Networks Preventive Maintenance BTS Manual

SIEMENS

Preventive Maintenance Manual Base Transceiver Station Equipment MMN:BTSE BS-240 / 240 II / 240XL / 240XL II Prepared by Eng. Djamel Metahri Siemens BSS Engineer


Contents

1 Introduction 1.1 Purpose of the Document 1.2 Scope of the Document 2 First Line Maintenance 2.1 General 2.2 Faults 3 Site-specific-data 3.1 Upload Inventory Data File (IDF) 3.2 Open Inventory Data File (IDF) 3.3 Example of Command Execution 4 Upload BS240XL BACKUP 4.1 BTS Backup File generation 4.2 Generate BTS Backup File 4.3 Copy the Script File to Disk 5 Visual inspection 5.1 Visual inspection of BTSE Mechanics 5.1.1 Racks of BS240\ 240II\ 240XL\ 240XLII 5.1.2 Check of Base Transceiver Station BTSE 5.1.3 Check of BTSE Modules 5.1.2.1 Module in the Racks 5.1.2.2 BTSE Modules 5.1.3 Antenna and feeder Cable 5.2 Visual inspection of BTSE Electrics 5.2.1 Polarity of DC Input and Tolerance 5.2.2 Circuit Breakers 5.2.3 External alarms 5.3 Visual inspection of BTSE Modules 5.3.1 STAR\ LOOP\ MULTIDROP\ CROSS CONNECT Connections 5.3.2 Antenna Connection 5.3.2.1 TX Antenna Connection 5.3.2.2 RX Antenna Connection 6 BTSE Configuration 6.1 Rack Configuration 6.2 Cell Configuration 7 Abbreviation

3 3 3 3 3 3 3 3 5 6 6 6 6 10 10 10 10 11 11 11 12 14 14 14 14 16 17 17 17 18 18 19 19 20 24


1 Introduction 1.1 Purpose of the document

The purpose of this document is to serve as a guide for the FLM technician to carry out the Preventive Maintenance task on the GSM-R Network

1.2 Scope of the document

The present document is only for internal use inside Nokia Siemens Networks.

2 First Line Maintenance 2.1 General

The Preventive Maintenance is setup to help the optimal maintenance of the equipment on the GSM Network. The sites would be checked quarterly (outdoor, indoor). The FLM technician checks the Network Element (HW\SW) and the cabling installed.

2.2 Faults

All faults detected by this procedure will be reported back to the BSS responsible who will in turn request the opening of a trouble ticket for the corresponding troubleshooting.

3 Site-specific-data

3.1 Upload Inventory Data File (IDF) Upload IDT-File from BTSE You can upload the Remote Inventory Data that are stored in the BTSE (IDT file) to the LMT PC.

Change to the LMT Evolution main window.

Login LMT; BSS

NE Btsep Br<no>:<NE id>

BSS-EQUIPMENT

BTSEP

BTSEP:<no>

REMINV

REMINV:<no>

UPLLIDF REMINV

DESTDIR=<path> (see below)

FILE=<file name> (see below)

OVERWRITE=Yes/no (see below)


Upload IDF

Upload IDF

Right click on REMINV


Choose the path Additional Information: The attributes DESTDIR and FILE are optional. If no special path or file name is entered, the file is uploaded to the default directory: C:\...\LMT<version>\IDF\upload, OVERWRITE=<yes> of the IDF Evolution. If the attribute OVERWRITE=<yes> is selected, a former version of an uploaded IDT file will be overwritten. System Response: In the “Message Viewer” window, the command result is displayed:“OPERATION COMPLETED”. 3.2 Open Inventory Data File (IDF) To open the IDT-file:

1. Change to the “IDF Evolution” window.

2. Select “File” -> “Open” from the menu.

If the IDF file is still open, a question window “Save file before open another one?” will appear. Click on

the “Yes” button. Select “File” -> “Open” from the menu again.

3. Select the uploaded file from the list in the appearing window; e.g.:

<C:\...\LMT<version>\Idf\Upload\BTSE.idt>.

4. Double-click on the file name or click on the “Open” button.

Click Submit

Choose the path


3.3 Example of Command Execution Dnlidfd REMINV:SRCDIR="C:\Programme\IdfEditor|\dnload"; UPLLIDF REMINV UPLLIDF REMINV: NAME=REMINV=x, [*DESTDIR=], [*FILE=],*OVERWRITE=; Command Tree: MANAGED-ELEMENT → BSS EQUIPMENT → BTSEP → REMINV → UPLLIDF REMINV Applicability: Phase 2 and Phase 3. Visibility level 0. Command Description: This command executes the uploading of the IDF (Inventory Data File) from the BTSE flash EPROMs to

the LMT hard disk.

Long Names: UPLLIDF REMINV: NAME=REMINV=x, [*DESTDIR=], [*FILE=],*OVERWRITE=; DESTDIR destination directoryFILE file OVERWRITE overwrite 4 Upload BS240XL BACKUP

4.1 BTS Backup File Generation Via the backup files (script files) a quick reconfiguration of the BTSE is possible (for example

necessary after a COBA replacement).

4.2 Generate BTS Backup File To generate BTS Backup Files:

1. Select “View” -> “Backup BTS” from the LMT Evolution menu.

2. Click on the “Get” button in the appearing pop up window. System Response: The configuration data of the BTSE are loaded to the LMT PC and are then converted to script files: SCRIPT1P.LMT, SCRIPT2P.LMT, SCRIPT3P.LMT, SCRIPT4P.LMT, SCRIPT5P.LMT, SCRIPT6P.LMT. These files are written into the BKBTS\BTSPLUS subdirectory. After this process the following message is displayed: “Get HW operation is completed.”


“Backup BTS” Command To use the Backup BTS tool provided by LMT Evolution it is necessary to be connected to the Network Element (BTSE). Once the connection is established and the authentication is guaranteed (LMT Evolution Online), the user can start the backup procedure by selecting the menu command File\Backup Bts or by the corresponding icon in the Tool Bar (see following fig).

“Backup BTS” Command After the selection of the Backup BTS entry, the following window will displayed. Backup BTS contains also Restore functionalities. Then, by selecting the Backup BTS entry in the File menu, the user will access both Backup and Restore functionalities.

Backup BTS window


The Menu Bar (see previous fig) consists of two menu options:

1. File: provide access to Backup and Restore functionalities

2. Help: provide access to Backup BTS Help contents

By opening the File menu, the following items are listed (see following Fig):

a) Get: start the backing up the BTS configuration (by sending Get commands).

b) Restore: start the restoring of a previously saved configuration

c) Exit: terminates the Backup BTS application

File Menu According to the BTS Phase, both Get and Restore operations are available (phase 2) or only Get operation is available (Phase 3). “Get” Command (Backup BTS) By clicking the "Get" Command in the “File” menu or the "Get" icon on the Tool bar, the backup of BTS configuration files starts. Backup BTS allows the user to store more than one BTS configurations. Therefore, the user is asked to provide the name of the configuration that is currently being saved (see following Fig). Later, when the user will need to restore a BTS configuration, he will refer to the name of a previously saved configuration by selecting it.

Save BackupBts Configuration Dialog Box


The configuration will be stored locally on the PC's file system. If a configuration with the same name already exists, the user is warned by a pop up window (see following Fig).

Save Backup Bts Configuration - Warning box In case the user decides to overwrite it, all data of the previous configuration will be lost and replaced by the new configuration information. If the user wants to keep also the old configuration he must change the name of the current one being saved. As the backup process starts, all LMT panels are unavailable and the only action the user may do is to stop (Abort) the backup procedure (see following Fig).

Backup BTS - Get Progress Bar The previous Backup window informs the user about the type of operation in progress, the name of the backup configuration that is being stored ("Backup1" in the example), the type and version of the connected BTS (Btsep BR 8.0) and the amount of BTS data that has been stored (progress bar). The user is only allowed to stop the Backup procedure by clicking on the “Abort” button. By clicking the “Abort” button on the progress bar window, the backing up process is stopped and no configuration is saved.


Backup BTS - Operation Completed Finally, the confirmation of the configuration is acquired and stored. The user has now created an “image” of the BTS configuration which is stored locally in the Backup BTS directory of the LMT installation: however if the user manually modifies the files stored in such directory the correct execution of the back up procedure is not granted anymore and the load should be reinstalled. Once the configuration has been stored, the user can choose to repeat the entire procedure (Get) or to continue working with LMT (OK). 4.3 Copy the Script File to Disk Copy the script files from [Drive]:\[LMT_Root]\BKBTS\BTSPLUS to some storage media and keep it at the

site in case a backup copy of the BTSE configuration is needed.

5 Visual Inspection 5.1 Visual Inspection of BTSE Mechanics

A visual inspection of all delivered racks must be executed to secure that these racks are not damaged and the quantity and location of the modules is correct. 5.1.1 Racks of BS-240 / 240 II / 240XL / 240XL II A BS-240 / 240 II consists of one Base Rack, 1–2 Extension Racks (one Extension Rack for BS-240XL/ 240XL II rack number 1), and 1–5 Service Racks. The numbering of the racks is shown in the following table.


Rack Numbering 5.1.2 Check of Base Transceiver Station BTSE Check for delivery quality and quantity on site:

– installation of BTS rack (rack fixing, fixed boards)

– damage to rack or shelter (paintwork, dents)

– correct insertion of modules

– system/rack cabling

– grounding, earthing

– main breakers

– external interfaces: power supply, antenna, and Abis wiring

5.1.3 Check of BTSE Modules 5.1.3.1 Modules in the Racks The following table gives an overview of which modules can be installed in the rack-types.


5.1.3.2 BTSE Modules The entire BTSE contains several cells called BTS: Up to 12 Cells are available.

Check whether the BTSE modules are correctly configured.

Hardware (HW) related modules: Per CELL: (F)DUAMCO (Flexible)Duplexer Amplifier Multicoupler

DIAMCO Dual Integrated Amplifier Multicoupler

FICOM Filter Combiner

TMA Tower Mounted Amplifier

HPDU High Power Duplexer

Per Transceiver TRX:

CU Carrier Unit

In addition there are common modules:

COBA Core Basis

COSA Core Satellite

ACT Alarm Collection Terminal

Basic-Modules:

DCP DC Panel

FAN Fan

OVPT Overvoltage Protection

AC/DC Alternating Current/Direct Current

DCBCTRL DC and Battery Controller

BB Backup Battery


The following window gives an overview if any module is affected/degraded, module

Unit Inspection

CU/ ECU/ FCU

FDUAMCO/ DUAMCO/ MFDUAMCO

COBA COSA

FAN

BPORT


5.1.4 Antenna and Feeder Cable The antennas and feeder cables have to be checked! And also the VSWR/ DULNA can be checked as

shown in the below windows.

5.2 Visual Inspection of BTSE Electrics

5.2.1 Polarity of DC Input and Tolerance The BTSE requires -48 V DC with a tolerance of –15%/+20% (-40,8 V...-57,6 V) for correct operation (positive pole is grounded). Check this voltage.

5.2.2 Circuit Breakers Rack internal breakers are available at the DC Panel for several modules to supply direct current (DC). The breakers are mounted at the DC Panel on the top of the rack. Check for fully equipped breakers and that all breakers are switched on.

Dulna ( Cleared: Green)

VSWR ( Cleared: Green)


DC Breakers for BS-240XL Base Rack

DC Breakers for BS-240XL Extension Rack

DC Breakers for BS-240XL Service1 Rack

DC Breakers for BS-240XL Service2 Rack


5.2.3 External Alarms

There are three types of ACT modules. ACTM for Base Rack optional ACTP for each rack, for Base Rack optional ACTC for all racks is part of the DC Panel. All racks are equipped with one ACTC which is part of the DC Panel. In the Base Rack, the ACTC is directly connected to the COBA. In the other racks, the ACTC is connected to the ACTP. The Base Rack can be equipped with ACTM. The ACTM supports 48 additional ENVAs, numbered ENVA 9–ENVA 56 and 8 Operator Commands. The installation of ACTM is optional. If no ACTM is installed in the Base Rack, 16 Alarms are available.

Settings for ENVA The window below shows how to check the external alarm.

External Alarm

Cleared External Alarm


5.3 Visual Inspection of BTSE Modules

5.3.1 STAR/LOOP/MULTIDROP/CROSS CONNECT Connection The following figure shows four possible Abis configurations to connect the BTS to the BSC. These configurations are called Star (single), Loop (several in circle), Multidrop (several), and Cross Connect. In case of a STAR link, only PCM1 must be wired. For LOOP and MULTIDROP links, PCM one and two are necessary.

Star/Loop/Multidrop/Cross Connect Configuration

5.3.2 Antenna Connection

Check the connection of TX and RX coax jumper cables.


5.3.2.1 TX Antenna Connection The TX antenna coax jumper cable must be directly connected to the 7/16" FICOM/(F)DUAMCO antenna connector.

5.3.2.2 RX Antenna Connection The RX antennas are connected via a jumper cable to the inputs N_female on the DIAMCO and 7/16" on the (F)DUAMCO. For diversity use, the (F)DUAMCO / DIAMCOmust be connected to two antennas. (F)DUAMCO uses the same jumper cable for TX and RX path. The DIAMCO is connected via jumper cable (see below Table). RF System Cabling There are several RF boards interconnected with RF-cables. Check whether the corresponding Carrier Units (CU modules) are connected to their branching equipment FICOM, (F)DUAMCO, DIAMCO. Handle with extreme care when connecting/changing modules!

RF Cabling


6 BTSE Configuration

6.1 Rack Configuration The BS240XL consits of one base rack and one optional extension rack and up to 5 optional service

racks as shown in below figure. There are 4 different types of racks:

– Base rack (with core modules) and Extension rack (for more then 12 carrier units) as shown in below

figure.

BS-240XL Base Rack and Extension Rack


It is possible to connect up to 2 racks together (1 base rack, 1 extension rack; the more possible racks

called service racks are not part of a rack extension in the proprietary sense) that realizes then the

performance of a 24 TRX BTSE (48 with FlexCU).

– Service1 rack (with AC/DC, LE and batteries) and Service2 rack (for LE and batteries) as shown in

below figure.

Configurations with BS-240XL Service Racks

6.2 Cell Configuration The below windows showns the configuration of the BTSE regarding the parametters as follow: - Number of Cell - CID (by remote login from BTSE to BSC) - LAC (by remote login from BTSE to BSC) - BTM Number (by remote login from BTSE to BSC) - Number of TRX per Cell


Number of Cell, LAC, CID

Number of Cell

Right click

Click Get

LAC

CID


BTSM Number

Get Info PCMB

BTSM Number


Number of TRX

9 CUs in Sector 2


Abbreviations ACDCP Alternate Current/Direct Current Converter for BS24x BSC Base Station Controller BTSE Base Transceiver Station Equipment BTSM BTSE Site Manager CCLK Common Clock CCTRL Core Controller CML Command Manual COBA Core Basis COSA Core Slave CU Carrier Unit DB Data Base DULNA Low Noise Amplifier of Duplex Antenna Multi Coupler DUVSWR DUAMCO VSWR FANP FAN for BS24x FTNFP FICOM-TNF for BS24x FVSWRP FICOM-VSWR for BS24x GET Get Commands GPSU Generic Power Supply Unit GSM Global System for Mobile Communication HW Hardware IDF Inventory Data File IDT Inventory Data Table LI Link Interface NOB Not On Board nob_RIU Not on board remote inventory unit O&M Operation and Maintenance ob_RIU On board remote inventory unit OMC Operation and Maintenance Center REMINV Remote Inventory RIU Remote Inventory Unit SW Software TMA Tower Mounted Amplifier for BS24x XCONNECT Multidrop-Star CrossConnect

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