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D-13550-A2-GB20-30 March 1999
Pin Assignments
Overview D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overview
Pin assignments for the 3550 Series DSU connectors
and interfaces are included here. Refer to them as needed.
• Figure D-1 shows the Model 3550 DSU’s digital
network connector, which is used for DDS
connection.
• Table D-1 provides the digital network connector’s
pin assignments.
• Table D-2 provides the network connector pin
assignments used for the V.32 DBM, which uses a
6-pin jack (not shown in any figure).
• Figure D-2 shows the 3600 Hubbing Device.
• Table D-3 shows the 3600 Hubbing Device’s pin
assignments.
• Table D-4 provides the 3600 Hubbing Device’s CC
IN/DC OUT jack pin assignments.
• Figure D-3 shows the Model 3551 DSUs rear
connector plate.
• Table D-5 provides the EIA-232/V.24 connector’s
pin assignments.
• Figure D-4 shows the V.35 adapter that is shipped
with the rear connector plate; it provides the
interface between the port’s D-type connector and
the DTE cable’s V.35 connector.
• Table D-6 provides the 25-pin V.35 connector and
the V.35 adapter’s pin assignments.
• Figure D-5 shows the EIA-232-D crossover cable
and its pin assignments.
• Figure D-6 shows the V.35 crossover cable and its
pin assignments.
Refer to the COMSPHERE 3000 Series Carrier,
Installation Manual for additional pin assignments.
Figure D-1. Digital Network Connector
D