A20733 B0 131
Input / Output Connections
Connector B1:CPU
RS232C asynchronous serial link and 20 mA current loop
Program output - counter reset. RS422 synchronous serial link.
1 TTYOUT- Photocoupled output
2 TTYOUT+ 20 mA current loop
3 TTYIN- Photocoupled input
4 TTYIN+
5 -TXDOUT Transmit Data
RS232C Link
6 RTSOUT Request To Send
7 DTROUT Data Terminal Ready
8 -RXDIN Receive Data
9 CTSIN Clear To Send
10 DSRIN Data Send Ready
11 DSR- Photocoupled DSR input
12 DSR+
13 GND 0 V
14 SPROG 2
15 COMSPROG Program output
16 SPROG 1
17 COMRAZC 1 Counter reset
18 RAZC1
19 COMRAZC2 Not used
20 RAZC2
Not fitted to
simplified
industrial
interface
board
21 RESET-
22 RESET+
23 -DSR422- Photocoupled DSR input
RS422 link
24 -DSR422+
25 RXD422- Receive Data
26 RXD422+
27 RXC422- Receive Clock input
28 RXC422+
29 VALID422-
30 VALID422+
31 -DTR422- Data Terminal Ready
32 -DTR422+
33 TXD422- Transmit Data
34 TXD422+
35 TXC422- Transmit Clock output
36 TXC422+
37 GND
38 + 5 V 300 mA CAUTION:
No fuse protection39 + 15 V 50 mA
40 - 15 V 50 mA
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