Before proceeding, you should assign numbers to each of the machines in the laundry room/building. It is highly recommended that you place number labels on each washer and dryer machine.
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Set the DIP switch to number the reader. See Reader DIP Switch settings
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Locate the coin-drop 4-wire connector
Plug the the mating connector from the reader harness directly to it.
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If for some reason the reader cable harness does not have a perfect mating connecting, you can splice the wires as follows
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