Dte

Models 3151/3161 Interface Connections

Table B-1

Connector	Quantity	Model	Use

DTE	8	3151/3161	DB15 socket. Provides the connection to your T1
			DSX-1 (DTE).

Network	1	3151/3161	50-pin RJ48H plug. Provides the connection to the T1
			network for all eight slots supported by the Auxiliary
			Backplane.

Clock In	1	3161	DB9 socket. Attaches an external clock. The external
			clock provides timing for up to eight slots. Each
			Auxiliary Backplane must have its own external clock
			input.

Port 1 & 2	16	3151/3161	DB25 (EIA-530A) socket. Provides the connection from
			a 3161 DSU/CSU to the synchronous data DTE.
			The Port 2 DB25 socket connector allows one slot in
			the carrier to be configured as the COM port, which
			replaces the functionality of the second data port. The
			COM port is a communications port that provides
			access to the front panel from a locally connected PC.

Diag	2	3151/3161	8-pin modular jack. Provides diagnostic connectivity
			between Auxiliary Backplanes in a carrier.

3000-A2-GA31-80

December 1994

B-3