Protech Systems SI-W509 User Manual page 25

5 channels digital input and 6 channels relay output remote i/o module
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3.1.2 RS-485 and Power Connector (JCN2)
The JCN2 pin assignments are listed below:
PIN
ASSIGNMENT
1
(Y)DATA+
2
(G)DATA-
3
GND.ISO
4
(B)GND
5
(R)+Vs
SI-W509 SERIES USER MANUAL
Chapter 3 Hardware Configuration
18
1
5
1
5
JCN2
1
Page: 3-4

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