User Manual – Rev J
CS Series
California Instruments
39
Table 3-5: BNC Connectors
3.6.4
External Sense Connector – SENSE
The external sense connections for Phase A, B and C in three-phase mode and Phase A in
single phase mode MUST be connected for correct operation unless internal sense mode is
selected. Sense connections must be made at the MASTER 4500CS unit for a multi-box CS
system.
Pin
Description - CS Series
1
Phase A sense Hi
2
Phase B sense Hi
3
Phase C sense Hi
4 Neutral
sense
5
-AX Option Phase D Hi – N/A
6
-AX Option Phase D Lo – N/A
Table 3-6: External Sense Connector
3.6.5
RS232C Serial Interface – RS232C
A standard RS232C DB9 connector is located on the rear panel for serial control. A straight thru
DB9 male to DB9 female interface cable to 9-pin PC serial port connector may be used
Pin
Designator
Dir.
Description
1 Not
used
N/C
2 TxD
Output Transmit
data
3 RxD
Input Receive
data
4 Not
used
N/C
5 Common
Common
6 Not
used
N/C
7
CTS
Input
Clear to send
8
RTS
Output
Request to send
9 Not
used
N/C
Table 3-7: RS232C Connector
