Omron CQM1H-SCB41 Operation Manual page 168

CompoWay/F Master Protocol
Connections
Connection methods between a Serial Communications Board and the K3N@-series Intelligent Signal Proces-
sor are shown below.
RS-232C
• RS-232C connections are one-to-one.
• The max. cable length is 15 m. Use an RS-232C optical interface (Z3RN) when extending the transmission
line beyond 15 m.
• Use shielded, twisted-pair cable.
Serial
Communications
Board
RS-232C
Abbrevi-
ation
RTS
CTS
DSR
DTR
Serial
Communications
Board
Abbrevi-
ation
Pin
No.
FG 1
SG 9
SD 2
RD 3
4
5
7
8
Shield
RS-232C
Pin
No.
9
SG
SD 2
3
RD
RTS 4
CTS 5
DSR
7
DTR 8
Shield
1/
FG
Shell
Intelligent
Signal
Processor
RS-232C
Pin Abbrevi-
MAX232C or equivalent
No. ation
1 FG
SG
7
2 SD
3 RD
4 RTS
5 CTS
6 DSR
20 DTR
K3N@-@@@@-FLK1
Intelligent
Signal
Processor
RS-232C
MAX232C or equivalent
Pin Abbrevi-
No. ation
5 SG
SD
3
RD
2
RTS
7
CTS
8
DSR
6
4 DTR
K3N@-@@@@-FLK4
Appendix B
TX
RX
TX
RX
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