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Pin
Pin
Port 1
Port 2
9
10
11
12
13
14
15
16
17
18
19
20
Pin
Pin
Port 1
Port 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Chapter 2 – Hardware Information
RS-485
Pin Name
GND
NC
NC
NC
RI
NC
RS-422
Pin Name
RS422_TX-
RS422_TX+
RS422_RX+
RS422_RX-
GND
NC
NC
NC
RI
NC
Signal Type
GND
-
-
-
IN
-
Signal Type
OUT
OUT
IN
IN
GND
-
-
-
IN
-
Signal Level
-
-
-
-
-
-
Signal Level
±5V
±5V
-
-
-
-
-
-
-
-
22
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