Carrier 500 T/R user manual = Gnd = Rxd = Txd = Cts

CONNECTOR 2

RS232

a) Serial communication with micro of the refrigeration unit without control panel

Communication cable 3 way

1	= GND	P/N : 22-60633-00
2	= RXD
3	= TXD
4	= CTS	Unit microprocessor
5	= RTS	connector

DataCOLD 500

b)Serial communication with micro of the refrigeration unit with one control panel and “Y” communication cable

Unit microprocessor

connector

Communication cable 2 way	"Y" communication
P/N : 22-60297-00	cable
	P/N : 22-60296-00

1 = GND

2 = RXD

3 = TXD

4 = CTS

5 = RTS

DataCOLD 500	Control panel
	connector

c) Serial communication with micro of the refrigeration unit with two control panels and RS232 interface

		Power supply +12V
		Communication cable
		3 way	Control panel 1
		P/N : 22-60633-00
			connector
1	= GND
		RS-232	Control panel
2	= RXD	Interface
3	= TXD		2 connector
4	= CTS		Unit
5	= RTS		microprocessor
	DataCOLD 500		connector

P/N : 12-60040-00

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