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Introduction
Smartio C168H/HS User’s Manual 1-7
Opt8J
v RS-422/485 connection box with 8 port female DB25 connectors.
v 1.5 meter DB62 to DB62 cable.
v 110V or 220V adapter.
1
2
3
4
5
6
7
8
Tx
Rx
Opt8J
Smartio
C168 Series
Opt8J is the RS-422/485 connection box with 8 port female DB25 connectors for
MOXA 8 port boards, including the
Smartio C168 Series. There are 8-DIP switches
on the side of the Opt8J. Each switch controls the communication mode (RS-422 or
RS-485) of each port, respectively.
RS-422/485 Port Switch of Opt8J
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
DIP
ONDIP
RS-422 Mode
Set the respective switch to OFF position to use RS-422 interface. This means the
port is always ready to transmit and receive data simultaneously (full-duplex).