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Installation and Safety Manual
Trinasmart
APPENDIX B: INSTALLING CAT 5 CABLE BETWEEN THE MMU AND GATEWAY
If four-conductor twisted-pair cable is not available, then the MMU-Gateway connection can be wired with Cat 5 Ethernet
wire. The data feed (leads A and B on the MMU and Gateway terminal blocks) must be connected to the same twisted pair.
See the table for instructions on connecting the cable:
Gateway/MMU Terminal Label
Signal
Cat 5 Cable Color(s)
A
RS485 (+)
Blue/White Stripes
B
RS485 (-)
Blue
+
+24v
Orange
Green
Brown
-
GND
Orange/White Stripes
Green/White Stripes
Brown/White Stripes