2YHUYLHZ
Release 03/2004
Operating Instructions (Compact) OP 77B
1–6
6AV6691-1EA01-0AB0
RS 232 (IF 1A)
1
5
9
6
Sub-D plug, 9-pin,
secured by screws
Pin
Assignment
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 N.
c.
Figure 1–7
RS 232 interface pin assignment
1
2
3
4
5
6
7
8
9
Figure 1–8
Pin switching
USB
1
4
USB
standard
connector
Pin
Assignment
1
DC +5 V, max. 100 mA
2 USB-DN
3 USB-DP
4 GND
Figure 1–9
USB standard connector pin assignment