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RS-232/422/485 data channels switch settings and
connections
The RS-232/422/485 data channels switch sets the data input and output formats. Refer to
Table 1 and the input/output connection diagrams to set and connect data signals
Pin Assignment
Data default is RS-422 4-wire
Data
function
PIN 1
RS422
IN+
RS485-4
IN+
RS485-2 IN/OUT+
RS232
(A) RS422/485 (4-Wire Full Duplex) Data Communication Connection diagram at data port:
RJ45 pin assignment (for mini type)
PIN 2
PIN 3
IN-
OUT+
IN-
OUT+
IN/OUT-
4
Quick Installation Guide
FTD110DBMicro / version 2.0
Table1-Dipswitch Setting
Type/Switch
Position
RS-422 4-WIRE
RS-485 4-WIRE
RS-485 2-Wire
RS-232
PIN 4
PIN 5
PIN 6
OUT-
GND
OUT-
GND
GND
GND
OT Systems Ltd. | www.ot-systems.com
1
2
OFF
OFF
ON
ON
ON
OFF
ON
OFF
PIN 7
IN
OUT
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