Zhone 7995 ユーザーガイド
C. Connectors, Cables, and Pin Assignments
C-2
May 2002
7990-A2-GB20-00
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.
the back of the unit.
COM Port Connector
The COM port connector is an 8-position unkeyed modular jack (see
). The data signals on this port are referenced to a DTE
interface.
Table C-1.
Power Input Connector
Pin Number Wire Color
Signal
1
Black
– 48 Vdc Return
2
Red
– 48 Vdc Return
3
Green
Ground
4
White
+24 Vdc Return
5
Orange
– 48 Vdc
+24 Vdc
6
Blue
No Connection
99-16291
2
3
5
4
6
1
Table C-2.
COM Port Connector (J6)
Signal
Direction
Pin Number
Transmit Clock
to DTE (Out)
1
DCE Received Data
to DTE (Out)
2
Signal Ground
—
3
DCE Transmit Data
from DTE (IN)
4
DCE Data Terminal Ready
from DTE (IN)
5
DCE Carrier Detect
to DTE Out)
6
DCE Request to Send
from DTE (IN)
7
Receive Clock
to DTE (Out)
8