Power Input Connector; Com Port Connector - Paradyne 7974 User Manual

C. Connectors, Cables, and Pin Assignments

Power Input Connector

The input power connector leads are shown in
Pin 1 is at the lower right of the connector and Pin 6 at the upper left as you face
the back of the unit.
Table C-1. Power Input Connector

COM Port Connector

The COM port connector is an 8-position unkeyed modular jack (see
COM Port Connector
interface.
Table C-2. COM Port Connector (J6)
C-2
Pin Number Wire Color
1 Black
2 Red
3 Green
4 White
5 Orange
6 Blue
(J6)). The data signals on this port are referenced to a DTE
Signal
Transmit Clock
DCE Received Data
Signal Ground
DCE Transmit Data
DCE Data Terminal Ready
DCE Carrier Detect
DCE Request to Send
Receive Clock
December 2001
Table C-1, Power Input
Signal
–48 Vdc Return
–48 Vdc Return
Ground
+24 Vdc Return
–48 Vdc
+24 Vdc
No Connection
Direction
to DTE (Out)
to DTE (Out)
—
from DTE (IN)
from DTE (IN)
to DTE Out)
from DTE (IN)
to DTE (Out)
Connector.
6 5 4
3 2 1
99-16291
Table C-2,
Pin Number
1
2
3
4
5
6
7
8
7900-A2-GB21-20