Flexi BTS Swap Procedure
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Transcript of Flexi BTS Swap Procedure
Nokia Flexi BTS Swap Procedure
Shahzad Rashid
NOC Executive Engineer (TXN)
Telenor Pakistan
Contents
Transmission Shifting
Flexi BTS Installation
Flexi BTS Commissioning
Cross-Connections at BTS and BSC end
Swapping Procedure
• Transmission Shifting
Transmission shifting involves:
Shifting of Siemens MW PDH Radios modems from Indoor shelter to Outdoor shelter
Connecting all the Siemens MW PDH Radios equipment as were in Indoor Shelter (Cross-Patching Radios)
Connecting IF cables b/w MW Dishes and Modems (SRAL XD)
Loop-Testing to check Transmission media and PCMB
Patching 2 E1’s b/w Flexi BTS and MW radios (One E1 for 900 and one for 1800 band)
• Flexi BTS Installation
Flexi BTS installation involves:
Outdoor shelter as Flexi BTS is Water Proof, Temp resistant up to 50 degree C (approx)
Connecting of TRX’s with Duplexers (ERGA Duplexer for GSM and ERDA Duplexer for DCS)
Connecting ESMA with Duplexers (and ESEA for extended TRX’s) (ESMA/ ESEA are its processors)
Connecting power cables to Duplexers, TRX’s and ESMA
Performing VSWR (voltage standing wave ratio) testing of Feeder cables to check cable faults
Connecting Feeder cables to Flexi BTS via jumpers to adjust Feeder cables length
Alarm Patching
Powering Up
• Flexi BTS Commissioning
Flexi BTS Commissioning involves:
Connecting to Flexi BTS to laptop
Configuring TRX’s and Sectors via Flexi BTS user interface
Configuring Abis Plan via same user interface
Cross-Connections b/w Flexi BTS and Siemens MW PDH
Cross-Connections changing from Siemens BSC to Nokia BSC
Loop-testing to check Transmission media and new ET at Nokia BSC end
Thanks for Viewing and Please find below related Photographs
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Siemens MW Radio Modem (SRAL XD)
DDF for Cross-Patching of Modems
IF Cables
Felxi BTS Duplexer and TRX's
Jumper Cables connected to Feeder Cables
Outdoor Shelter