Connection Option (Opt8x) and Cable Wiring
Smartio
C168H/HS User’s Manual
5-7
PC COM2 port, Serial Printer,
Terminal, or any DTE Device
Opt8D
Opt8D
DTE Device
DB9 Male
DB25 Male
RxD
2
2
TxD
TxD
3
3
RxD
GND
5
7
GND
RTS
7
4
RTS
CTS
8
5
CTS
DTR
4
6
DTR
DSR
6
20
DSR
DCD
1
8
DCD
RS-422 Cable Wiring for Opt8J/F/Z
RS-422 connection boxes designed for
Smartio
C168 Series are:
Opt8J:
Connection box with 8 female RS-422/485 DB25 ports. Set the port
switch to
OFF
position (RS-422) for the desired port(s).
Opt8F:
Connection box with 8 female RS-422 DB25 ports and Max. 500V DC
isolation protection which prevents damage caused by high potential
voltage.
Opt8Z:
Connection box with 8 female RS-422 DB25 ports but without isolation
protection.