Campbell Scientific SC532A CS I/O Peripheral to RS-232 Interface - Manual (Page 11)

Appendix A. Pin Description
The SC532A 9-pin female port is configured as Data Communications Equipment (DCE) for
direct cable connection to Data Terminal Equipment (DTE) such as an IBM-PC serial port.
The pin descriptions of the SC532A PC and PERIPHERAL connectors are listed in the
following table.
TABLE A-1. SC532A Pin Descriptions
PIN = Pin number
I = Signal Into the SC532A
0 = Signal Out of the SC532A
PC CONNECTOR
9-PIN D-SUB FEMALE
PIN I/O DESCRIPTION
1 I not
used
2 O RX
3 I TX
4 DTR
5
GND
6 not used
7 I RTS
8 O not
used
9 I RING
PERIPHERAL CONNECTOR
9-PIN D-SUB FEMALE
PIN I/O DESCRIPTION
1 O +5V
SUPPLY
2 GND
3 I RING
4 I RX
5 O ME
6 O SDE
EN
7 O CLK/HS
8 O +12V
9 O TX
A PC configured as DTE, such as the IBM-PC, adheres to the description in
Table A-2 or A-3
A-1