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A
PPENDICES
Appendix 3 RS-232 Cable wiring example when performing computer link communication
Appendix 3.1 A Series
(1) When a 25-pin connector is used in a C24(computer link module)
(Example of connection 1)
Computer Link Module Side
Personal Computer Side
Signal Name
Pin No. Signal Name
FG 1 FG
SD(TXD) 2 SD(TXD)
RD(RXD) 3 RD(RXD)
RS 4 RS
CS(CTS) 5 CS(CTS)
DSR(DR) 6 DSR(DR)
SG 7 SG
CD 8 CD
DTR(ER) 20 DTR(ER)
The CD signal need not be connected when the following connection is used for
communication. Select no CD terminal check (write 1) as the RS-232 CD
terminal check setting (setting made at buffer memory address 10BH).
(Example of connection 2)
Computer Link Module Side
Personal Computer Side
Signal Name Pin No. Signal Name
FG 1 FG
SD(TXD) 2 SD(TXD)
RD(RXD) 3 RD(RXD)
RS 4 RS
CS(CTS) 5 CS(CTS)
DSR(DR) 6 DSR(DR)
SG 7 SG
CD 8 CD
DTR(ER) 20 DTR(ER)