Connect Tech DFlex-4/104 - Manual (Page 76)

4-26 Chapter 4: Appendix G - RS-423 Option
DFlex-4/104 User’s Manual, ver. 0.04
RS-423 Cable Wiring
You can wire DFlex-4/104 adapter with the RS-423 option in
various ways to communicate with RS-423 peripherals. This
section will descibe a few examples of RS-423 cabling schemes.
Figure 18 describes a 4 wire cabling scheme between a port on
the DFlex-4/104 adapter to a port on the RS-423 peripheral.
Figure 18: RS-423 wiring diagram (4 wire)
SG
CTS +
TxD -
RxD +
RxD -
RxD +
RxD - TxD -
RTS -
CTS -
SR
SR
DFlex-4/104 adapter RS-423 peripheral
2
3
4
5
6
7
8
9
1
SR
SG
Figure 19 describes an all wire cabling scheme between a port on
the DFlex-4/104 adapter to a port on the RS-423 peripheral.
Figure 19: RS-423 wiring diagram (all wire)
SR
CTS -
CTS +
RTS -
SR
TxD -
RxD +
RxD -
RxD + SR
RxD - TxD -
RTS -
CTS -
CTS +
SR
SG SG
DFlex-4/104 adapter RS-423 peripheral
1
2
3
4
5
6
7
8
9