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4
Installation and Connections
4.3 Connections
Unit Connections
EPU-220-A
EPU-220-B
Cable end specifications: Loose wires
24V
Power
supply
0V
CA
RS-485
CB
wiring
CS
Cable end specifications: Connector
Pin No.
2
1
3
4
Pin No.
1
2
3
4
Shield
Manufacturer
Product No.
Specifications M12 A-code 4-pin shielded male
32
Signal name
24V
CA
0V
CB
CS
Amphenol Corporation
MSAS-04BMMB-SL7001
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