Paradyne COMSPHERE 3000 Series Installation Manual page 100

DSX-1 Port DTE Interface
This cable is typically supplied by a DTE vendor and is
a 22 AWG solid, individually shielded twisted pair cable
with drain wire (see Figure B-4). The cable connector is a
DB15 plug. Be sure to connect the shield ground only at
the DSU/CSU end as shown in Figure B-4 to prevent
Receiver Tip from DTE
Receiver Ring from DTE
Transmitter Tip to DTE
Transmitter Ring to DTE
Relay Contact Sense Return
Relay Contact Sense
Shield Ground
3000-A2-GA31-80
ground loops. The DTE (DSX-1) interface connector is a
DB15-type socket connector (see Table B-3). Refer to the
Extrn DLB configuration option in the DTE Interface
Options section in Appendix B of the ACCULINK 315x
Channel Service Unit Operator's Guide or the
ACCULINK 316x Data Service Unit/Channel Service Unit
Operator's Guide for more information.
Figure B-4. DTE (DSX-1) Cable
Table B-3
DTE (DSX-1) Interface Connector (J3)
Signal
December 1994
Models 3151/3161 Interface Connections
Pin Number
1
9
3
11
12
14
2, 4
B-7