Pin Assignments

DTE Drop/Insert Interface

The DTE Drop/Insert (DSX-1) interface connector is a DB15-type socket connector (Table D-2).For information about using Relay Contact Sense for external DTE loopback, refer to the Extrn DLB configuration option in the DTE Interface Configuration Options section of Appendix C.

The DTE Drop/Insert (DSX-1) cable (Figure D-3) is

typically supplied by a DTE vendor. It is made of shielded twisted-pair wires (22 AWG). The cable connector is a DB15-type plug connector. Be sure to connect the shield ground only at the DSU/CSU end to prevent ground loops.

Table D-2

DTE Drop/Insert (DSX-1) Connector

Signal

Pin Number

 

 

Receiver Tip from DTE

1

 

 

Receiver Ring from DTE

9

 

 

Transmitter Tip to DTE

3

 

 

Transmitter Ring to DTE

11

 

 

Relay Contact Sense Return

12

 

 

Relay Contact Sense

14

 

 

Shield Ground

2,4

 

 

Figure D-3. DTE Drop/Insert (DSX-1) Cable

3160-A2-GB21-50

January 1997

D-3

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Image 152
Paradyne 3160-A2-GB21-50 manual DTE Drop/Insert Interface, Table D-2 DTE Drop/Insert DSX-1 Connector Signal Pin Number