User and Programming Manual - Rev H
California Instruments
P Series
May 2000
65
The following wiring diagram is required for the serial interface cable between the P
Series AC power source and a PC communications port connector.
Figure 13-1: RS232C Interface cable wiring diagram
DB-9 PC
DB-9 AC Source
Pin
1
2
3
4
5
6
7
8
9
Pin
1
2
3
4
5
6
7
8
9
Direction
output
input
output
output
-
input
-
-
output
Description
reserved
Receive data(RxD)
Transmit data (TxD)
Data Terminal Ready (DTR)
Signal Ground
Data Set Ready (DSR)
no connect
no connect
reserved
