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Installation
3.5 Communication Module Connections
The communication module of M42/36/28U is shown in Figure 3-20.
It provides VCC, RS-485, dry contact, EPO, and Digital Input terminals for use
in various applications. Details for each are presented below. There's a 12VDC
source between VCC & GND for use with external device.
Dry Contact
EPO*1 &
Digital Inputs*6
Figure 3-20: Communication Module Layout
Terminal Resistor
VCC & RS-485
44
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