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Before starting Transmission A/T of BTS, lock BTS site from OMC-R, and confirm.
Carry out initialization of BTS as
- Start Laptop (BTS terminal), connect it to BTS by a RS – 232 a sync. Link
(USB- serial port) cable to MMI (Man Machine interface) port of SUMA card.
- Click on BTS Terminal Release B-8 ( B-8 a software version ) Log
in.(AVO2E.01)
- File – commissioning- cmds –Show – Monitor – Extras – View –Window – Help.
- File- Connect
- Commissioning- Download- BTS- sw- BTS Software download- Enter-
- BTS software download in progress- Observe download process.
- Initialization in progress- Reading all Remote inventories.
- Edit frequencies- Add 6 dummy frequencies (If 6 TRE’s installed)- Sector
mapping window- Shows sector mapping- Save
- Select setting- Board configuration
- SUM board configuration- Abis mapping with TRE no.s- Select transmit
- All sector initialization- sector mapping with TRE and sectors
- For this initialization near about 5 minutes takes place.
Checking of HTS configuration (Hardware technical status):-
This is nothing but a Hardware conformity test to check no. of TRE’s per sector
installed.
- Show – sector mapping- show TRE no.s as per installed position.
- HW configuration check
- commissioning –initialization- HW check as sector 1
- 2 antennas – power range maximum 46.5
- No of TRE matching frequency range.
- No of TRE not matching frequency.
Check of Trans power TRE wise- ( TRE O/P )
- Connect TRE O/P cable (3 BK 07919 AE AAA) to Site Master (Anritsu / Bird)
- Commissioning- O/P power test
- GMSK (Gaussian Minimum Shift Keying) - O/P power test - TRE no. Select-
All Time slots ON- Start-UT.
- Is sending- Meter will show TRE O/P power in Watt as well as in dBm
.Compare with Limits mentioned on next page.
- Stop- Remove watt meter- Close file (abort)
-
Carry out same test for all equipped TRE’s at TRE O/P
. Trans power at Bay Top
- Connect meter to Bay top ports as Na, Nb, Pa, Pb, Qa, Qb
- Carry out the Trans power test as above on Bay top.
- Compare the reading, it may show 4 to 5 dBm less than TRE O/P.
End commissioning: -
- When power check is over start End commissioning- Loading
- Commissioning- End commissioning- Success- Success
Check of VSWR
- Connect Site Master to jumper cable by a RF cable ,
- Carry on the VSWR test as mentioned in Lucent BTS.
- The Limit is same 1.3
Forward power and Reverse power test:-
Measure Trans power on Bay top and reverse the knob of Through Watt meter,
see that the reading is zero.
(150 paginas)
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