Paradyne ACCULINK 3150, Operator'S Manual, Page: 162 / 234

E. Pin Assignments
E-4
March 2001 3150-A2-GB24-10
DTE Interface
The DTE interface connector is a DB15-type socket connector ( Table E-3, DTE
Connector ). For information about using Relay Contact Sense for external DTE
loopback, refer to the Extrn DLB configuration option in
DTE Interface
Configuration Options in Appendix C, Configuration Options .
The DTE cable ( Figure E-3, DTE Cable ) 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 CSU end to
prevent ground loops.
Figure E-3. DTE Cable
Table E-3. DTE 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
494-14152-02
1
9
2
3
11
4
12
14
RECEIVE TIP
RECEIVE RING
SHIELD GROUND
TRANSMIT TIP
TRANSMIT RING
SHIELD GROUND
RETURN
SENSE
TO
DTE
TWISTED PAIR
TWISTED PAIR
DB15
PLUG
EXTERNAL
RELAY
CONTACT