Carrier GRAVINER Mk 7 - Figure 20 Remote Display Unit 1-53836-K271

March 2021 Page 25 of 143 59812-K007 Rev 17
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Figure 20 Remote Display Unit 1-53836-K271
The use of RS485 based signalling allows the RDU and Control Unit to be located a large distance apart.
The following drawings show the wiring pin out for 3 methods of connecting the extended Modbus cable.
24v DC
Connector
Modbus
Connector