Automation Direct D2-DCM, Руководство пользователя

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A–9
Cable Diagrams
Data Communications Module, 2nd Edition, 2/03
These diagrams show how to connect a network of D2–DCMs to a personal computer.
Note: 1. You must connect pin 20 to pin 25
2. RTS/CTS are looped back internally
and do not require external wiring.
D2–DCM
Master Slaves
2 TXD
3
7
4
RXD
GND
RTS
5 CTS
25Ćpin DTE
Connector
6 DSR
8 DCD
20 DTR
2 RXD
3
5
1
6
TXD
GND
DCD
DSR
RS232C
Personal Computer
4 DTR
7 RTS
8 CTS
9Ćpin DTE
Connector
FA–UNICON Converter
25Ćpin Connector
2 TXD
3
7
20
RXD
GND
DTR
FA–UNICON RS232/422 Converter
RS422
22
23
24
25 +OUT
–OUT
–IN
+IN
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+IN
–IN
–OUT
+OUT
D2–DCM
22
23
24
25 +OUT
–OUT
–IN
+IN
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+IN
–OUT
+OUT
D2–DCM
RS422
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+OUT
–OUT
–IN
+IN
D2–DCM
25Ćpin Connector
2 TXD
3
7
20
RXD
GND
DTR
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+OUT
–OUT
–IN
+IN
Termination Resistor
RS232C
Personal Computer FA–UNICON Converter
RS422
DCE DTE
DCE DTE
Note: 1. You must connect pin 20 to pin 25
2. RTS/CTS are looped back internally
and do not require external wiring.
25 +5V
25 +5V
–IN
25Ćpin Connector
22
23
24
25 +OUT
–OUT
–IN
+IN
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+IN
–IN
–OUT
+OUT
D2–DCM
22
23
24
25 +OUT
–OUT
–IN
+IN
7 GND
10
11
12
13
17
16
15
14
+RTS
–RTS
+CTS
–CTS
+IN
–OUT
+OUT
D2–DCM
RS422
25Ćpin Connector
Termination Resistor
–IN
Multidrop
RS422
PC as Master