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13
Chapter 2
Refer to the figure and table below for COM3 & COM4 descriptions.
2.5 Power Connections
UNO-1019 su10 ~ 30 V
DC
power inputs. A detailed power pin
image is shown below
Figure 2.4: Power Pin Assignments
COM3 & COM4 Pin Assignments
Pin
RS-232
RS-422
RS-485
1
DCD
TxD-
Data-
2
RxD
TxD+
Data+
3
TxD
RxD+
-
4
DTR
RxD-
-
5
GND
GND
GND
6
DSR
-
-
7
RTS
-
-
8
CTS
-
-
9
RI
-
-