APCI-7xxx-3
Pin
RS 232
14
TxD
15
RxD
35
-
13
GND
34
RTS
33
CTS
54
DCD
53
DSR
73
DTR
72
RI
Pin
RS 232
70
TxD
71
RxD
69
GND
52
-
51
RTS
50
CTS
32
DCD
31
DSR
12
DTR
11
RI
36
Tabelle 7-5: Belegung der Schnittstelle 3
RS 422
RS 485
RA
Tx / Rx +
TB
TA
100 Ω
120 Ω
Rab
RB
Tx / Rx -
Tabelle 7-6: Belegung der Schnittstelle 4
RS 422
RS 485
RA
Tx / Rx +
TB
TA
100 Ω
120 Ω
Rab
RB
Tx / Rx -
Anschluss an die Peripherie
RS422PEP
Rx+
Tx-
GND
RTS-
RTS+
Tx+
CTS+
CTS-
RX-
RS422PEP
Rx+
Tx-
GND
RTS-
RTS+
Tx+
CTS+
CTS-
RX-
Current Loop
+RCV-CL-DATA
-XMIT-CL-DATA
GND
Tsource
Rsource
+XMIT-CL-DATA
-RCV-CL-DATA
Current Loop
+RCV-CL-DATA
-XMIT-CL-DATA
GND
Tsource
Rsource
+XMIT-CL-DATA
-RCV-CL-DATA