every BTS are the same structure. NOKIA, Nortel, Alcatel, …
antenna = copler = tx => radio bcf => transmission => BSC…
For NOKIA BTS ultrasite:
LOOK at this:
G like GSM
D like DCS
DVGA => GSM
DVDC => DCS
Connection BYPASS or not:
passive card for 1 or more TRX. You lose 3db if you connected by WCGA or WCDA.
M2HA => DCS
M2LA => GSM
WCDA => DCS
WCGA => GSM
TSDA => DCS no EDGE
TSDB => DCS EDGE
TSGA => GSM no EDGE
TSGB => GSM EDGE
BB2xx card is intelligent part of TRX.
BB2A => No EDGE only compatible with TSGA and TSGB
BB2E => EDGE (first generation of BB2xx EDGE) compatible with ALL, TX A and B
BB2F => EDGE
BOIA => BCF, MMI connection with BTS manager, Hubmanager and HWmanager.
FXC ET1/T1 => in/out MIC 2Mbit signal.
RRI => flexihopper I like “integrated” same function like FIU 19″