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There are some tests which are to be seen in RI (Remote Inventory). Simulate the
condition and check in RI as follows,
1. Checking of Antenna mapping in RI
2. Checking of Additional modules in RI
3. Checking VSWR setting in RI
4. Checking Alarm Mapping in RI
In Laptop – Show –select Remote Inventory.- Select required test and get results – save-
take out prints also for reference.
Check BTS Initialization by OMC - R operator command and also by putting Bay power
supply off .Check the Hardware reset.
Redundancy test: - As there is no stand by module of power supply unit and E1 link,
moreover being only one Suma (Station unit module) card is available so this test is not
applicable.
Alarm test:-
There are 16 alarms produced by BTS as follows: -
1. Rectifier fails 9. Temperature alarm- 40 C
2. Mains power failure 10. Hazard light alarm (1)
3. Door/ Window alarm 11. Battery deep discharge
4. Door/ Window over ride 12. Air conditioned (2)
5. Fire alarm 13. Hazard light alarm (2)
6. Water break in 14. Hazard light alarm (3)
7. Air condition (1) 15. Door alarm failure
8. Temperature alarm- 35
0
C 16. Inverter failure
These alarms are wired on 16 pins push type Tag block at the top of Bay.
These alarms are extended locally by cable on wall mounted crone type tag block by
BSNL, but at the time of A/T if not extended, then test locally on push back tag block by
loop or no loop condition on Laptop as well as with OMC-R.
- On laptop- monitor- active alarms- message
- Remove loop on push back tag block one by one
- Message display will show all above alarms as BTS- 1 BTS EXTERN [9]- type
of alarm [1]-1
- If looped back, display of alarm goes off automatically.
After all tests are over ask OMC- R operator to unlock the BTS site.
Wait for the restoration of BTS
Now if BTS is restored, start BCCH recovery test.
- Open communication terminal, BTS terminal- Enter user name and password
- File- Connect/ Disconnect- BTS terminal window opens
- Open SBL management- Select TRE no.- Disable- Request- Report as in
working status- Some TRE gets put off
- Message will appear upgraded- Files as monitored data update and BCCH will
shift on shifted TRE
- BCCH LED also glow on shifted TRE
- Again select TRE- initialize- original BCCH TRE restore.
Alarm test by OMC- R:-
Some alarms are checked from OMC –R,
1. When BTS is locked or E1 is disconnected, display shows as AIS 2 Mb.
2. When E1 restores, there will not be any alarm on OMC as site is locked.
3. When site is unlocked – TRE restored, put off power supply then in OMC display
shows as loss of all channels and AIS.
(150 paginas)
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