B-1
OP27, OP37 Equipment Manual
Release 05/99
Interface Assignments
Pin assignment of the 15–pin Sub-D socket:
Pin
General
RS232
TTY
1
Housing
2
RxD–
3
RxD
4
TxD
5
CTS
6
TxD+
7
TxD–
8
Housing
9
RxD+
10
RTS
11
+20 mA
1)
12
GND
13
+20 mA
1)
14
+5 V
15
GND
1)
Not IF2
IF1A and IF2
B
8
1
15
9
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