INFICON IO1000 I/O module - Manual (Page 11)

Description
11
Pin assignment:
The output pins can be freely configured.
RS232 b
Connection for RS-232
Galvanic isolation (max. 60 V DC, 25 V VAC against GND)
Pin assignment:
A normal RS-232 cable must be used for the connection (1:1 connection, RxD and
TxD not crossed, no zero-modem cable).
► Deactivate RS-232 hardware handshake in RS-232 control program.
If the hardware handshake cannot be deactivated, the RS-232 can be used as
follows:
1 Analog output 1: ANALOG-OUT 1
2 Analog output 2: ANALOG-OUT 2
3 GND to analog output
Pin Name
2 TxD
3 RxD
5 GND
Fig. 4 Connection with RS-232 cable (in case hardware handshake cannot be
deactivated)