Pin
Pin Name
5
TX
6
CTS
7
DTR
8
RI/+5V/+12V
9
GND
Pin
Pin Name
1
RS422_TX-
2
NC
3
RS422_TX+
4
NC
5
RS422_RX+
6
NC
7
RS422_RX-
8
NC/+5V/+12V
9
GND
Chapter 2 – Hardware Information
RS-232
Signal Type
OUT
IN
OUT
IN/ PWR
GND
RS-422
Signal Type
OUT
OUT
IN
IN
PWR
GND
Signal Level
±5V
±5V
+5V/+12V
Signal Level
±5V
±5V
+5V/+12V
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