Ericsson RBS Commissioning Guide

Ericsson RBS Commissioning Guide

COSMOTE Date: 14-02-2006 Version: 01


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Ericsson RBS Commissioning Guide 1.

Preparation for Commissioning

1.1

Tools Required The commissioner before go to site for commissioning, he must have the following materials with him: · · · · · ·

1.2

Torques for plug-unplug units (if needed) Screwdriver and krone-tool for installing PCM line (if needed). Voltmeter to measure voltage. Laptop more than 1000MHz, 512MB memory, WinXP or Win2000. The latest version of OMT (currently it is R29_3). Serial cable 9pin male - 9pin female for connection.

Last Check Before begin the commissioning make some last checks. · · · ·

Cabinet is well fixed and grounded DC voltage to cabinet is -48VDC (be careful of the polarity). In case of 2106 power cables are connected correctly on power board. Neutral and grounding are not connected on the same bar. All internal cables of the cabinet are connected and there is no obvious sign of damage.

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2.

Commissioning Procedure

2.1

Creating Database

Open OMT. Don’t connect to RBS but create first the IDB. Select ConfigurationàCreate IDB

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Let transmission line G.703 and create type of cabinet by clicking on New. If you have created already a new IDB and want to erase it click on Clear All. It will erase all old data.

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Select the type of the cabinet. 2206 Cabinet Type: 2206 Power System: -48VDC (Also +24VDC, 120-250VAC optional backup) Climate System: Fan+Filter 2106 Cabinet Type: 2106 Power System: 200-250 outdoor battery Air. Cond + heat exch. Click OK

Now it is time to create the cells for the cabinet. Here we will discuss the usual configuration with 3 cell of 900MHz without TMA. Create a new Antenna Sector by clicking on New

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By clicking New a new window Antenna Systems for Sector 0 will be shown. Click on New to create the cells. Frequency: GSM 900 (other options GSM 800, GSM 1800, GSM 1900) CDU type: CDU G (other options CDU F) TMA: No (other options Yes) Tx combining: Uncombined (other options dTRU hybrid combiner, HCU, HCU_RX antenna sharing)

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When finish with the cells click OK

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One more window will be shown. From here select the configuration of the RBS. In our case it is SCC (Site Cell Configuration) 3x2 and No of Ant 3x2.

Save IDB in you computer before step forward.

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Select ConfigurationàDefineàAlarm Inlets… The dialog to define external alarms will be shown. You will define only external alarms. All the alarms are of type breaking. Also Id is different for every alarms. Follow the next table. It is the case where you have Ericsson 2206 with MPB and Sunlight. ERICSSON+MPB+SUNLIGHT Position on Krone 5 2 3 7 6 10 14 20 8 9 4 13 11 16

Alarm Inlet 0/1 0/2 0/3 0/4 0/5 0/6 0/7 0/8 0/9 0/10 0/11 0/12 0/13 0/14 0/15

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Declaration of the alarm in RBS

Level

MPB DOOR OPEN MPB TEMPERATURE TOO HIGH FIRE SUSPECTED MPB LOW TEMPERATURE MPB FIRE DETECTED MPB LOSS OF MAIN AC MPBGENERAL ALARM PSU SUNLIGHT BATTERY DISCHARGE GENERATOR ON MPB AIR CONDITION FAILURE MPB AVIATION LIGHT BREAKDOWN MPB OIL LEVEL TOO LOW PSU SUNLIGHT MAINS FAILURE PSU SUNLIGHT RECTIFIER URGENT PSU SUNLIGHT RECTIFIER NON URGENT PSU SUNLIGHT DC VOLTAGE<47V

1 2 2 2 2 2 2 2 2 2 1 2 2 2 2 2

In case that we have 2106 declare the alarms as next Alarm Inlet

Declaration of the alarm in RBS

Level

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Fire Alarm Smoke Alarm

2 2

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Next define the delays for the feeders ConfigurationàDefineàDelay… Here you must define the delay for each feeder. Don’t touch ESB (External Synchronization Bus)

To calculate the electrical delay you open the corresponding excel file (900MHz or 1800MHz). At OMT you must fill the sum of the electrical delay of feeder and jumper (column H) Repeat for all feeders.

Next select configurationàDefineàHardware Info… Here you can set the hardware information of every unit. Select IDM 0 and fill the HW information of the cabinet.

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Then define the loss of feeders. ConfigurationàDefineàLoss…. At the new window that will appear we will fill only the losses for the feeders. From the Excel file you opened before add the attenuation of feeders and jumper (Column F)

Next you sill define PCM line. ConfigurationàDefineàPCM…. Transmission Interface: G.703 (E1) Network Topology: Stand Alone (Other options is cascade, if another site is activated from the same line after this cabinet). Sync source: PCMA. Leave the next parameters as they are.

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At the next step you will define the present RUs and remove those RUs that do not exist. Select ConfigurationàDefineàPresent RUs. Usually you must remove PSU-3 and some TRU that don’t exist.

Select ConfigurationàDefineàTEI… and set the TEI number of DXU. This TEI number is given from OMC. Cabinets on the same line must have different TEI values.

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Save IDB. Connect to RBS and then select ConfigurationàInstall IDB. Speak with OMC to unlock the site. Be careful that units are at remote mode.

2.2

Checking the external alarms Check the external alarms of RBS. Refer to manual of each equipment on how to simulate them. Make sure that you don’t leave active alarm when leaving from site.

2.3

Checking Climate Unit of 2106 On CCU of 2106 there is a button that tests the operation of climate unit. Push it and see if a fault will occur.

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Puch test button to test climate unit

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2.4

Checking Battery Backup Close the AC main breaker of the site. In case of 2106, cabinet must continue working from the batteries. In case of 2206 Power System will provide the necessary power from its own batteries.

2.5

Integration Integration is very important procedure because we can test the performance of RBS. If done correctly it is possible to detect many errors during installation or commissioning. · · · · · ·

Check with a compass the direction of the antennae. Directions must be the same with those at Work Order. Make sure that feeders are connected to the correct antenna and start from the correct filter. Also cable connections between units inside cabinet must be correct. Make calls from every channel of every TRU. Speak with the center to lock some TRU if necessary. Check that the cells look at the correct direction. Make handover between the cells Make handover to a nearby site and write down the cell id.

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Contents Ericsson RBS Commissioning Guide .........................................................................2 1. Preparation for Commissioning ......................................................................2 1.1 Tools Required .......................................................................................2 1.2 Last Check..............................................................................................2 2. Commissioning Procedure ..............................................................................3 2.1 Creating Database...................................................................................3 2.2 Checking the external alarms ................................................................13 2.3 Checking Climate Unit of 2106.............................................................13 2.4 Checking Battery Backup .....................................................................15 2.5 Integration ............................................................................................15

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Ericsson RBS Commissioning Guide

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