4.3
Pin assignment X1, X2, X5
Pin Assignment
Symbol
X2
X2
Power supply
Power supply
DC: L+
AC: L1
DC: L-
AC: N
X5
X5
Relay contact 1
Relay contact 2
1
2
Tab. 1: Screw-type terminals X2, X5
Pin
Assignment
Symbol
Data direction when
used as DTE
1 nc
2 Receive
Data
RxD
In
3 Transmit
Data
TxD
Out
4 nc
5 Signal
ground
GND
GND
6 nc
7 nc
8 nc
9 nc
Tab. 2: 9-pin Sub-D socket X1
Page 20 of 28
RS232-FO Converter
12.10.2006
