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Operating Instructions
Explanation of I/O Connector：
Pin Function
1 I/O-IN (1)
2 I/O-OUT (1)
3 +12V (<100mA)
4 DGND
5 I/O-IN (2)
6 I/O-OUT (2)
2.COMM
COMM ports have one RS-232 , RS-485 and one LINE OUT。
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