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Reply To: Please answer this query



If CSU is transcoder unit – then answer is different for different equipment vendors.

TC, never have signalling point, so it never have SS7 connection to BSC.

In Nokia DX200 BSS – transcoder is connected to BSC via LAP-D only for O&M linkage.

In Ericsson AXE 810 there is no separate transcoder, usually it is combiled node BSC/TRX, so it have internal connection via DL bus.