Port 3
DIP Switch
Settings
S1-3 S2-3
RS-422 — OFF
RS-485
(2-wire)
ON ON
RS-485
(4-wire)
OFF ON
Port 4
DIP Switch
Settings
S1-4 S2-4
RS-422 — OFF
RS-485
(2-wire)
ON ON
RS-485
(4-wire)
OFF ON
Industio CP-134U Series User’s Manual
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