Appendix 6 Universal Serial Communications App6-7
• Interface connector
- Use the following types of RS-232C cable connectors.
D-sub 25-pin connector (male)
DDK type 17JE23250-02 (D8A) or equivalent
• Twist-shielded cables
- Use twist-shielded cables provided by the following manufacturers.
CN1: RS-422 Connector Specifications
The specifications for the RS-422 connector that links to the communication device are shown below.
• Wiring
Perform wiring as shown below.
<4-wire system>
Manufacturer Type
Hitachi Cable CO-SPEV-SB(A) 3P × .3SQ
Mitsubishi Cable SPEV-SB-MPC 3P × .3SQ
Pin No. Name Signal Name Signal Direction (V Series ←→ Communication Device)
1 Frame ground FG
7 Signal ground SG
12 Send data +SD
13 Send data −SD
24 Receive data +RD
25 Receive data −RD
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
* Contact arrangement of the pin insert
FG
+SD
−SD
+RD
−RD
1
12
13
24
25
FG
RDA
RDB
SDA
SDB
7SG SG
* Use twist-shielded cables.
V series (CN1)
General-purpose
computer
Signal
Name
Pin No.
Signal
Name
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