Pinout for Red Connector to Flow Control Module

[herrubermensch]

Yes, I know this system is old and has been superseded, but there are many of us who contend it is the best system Aquamist ever produced and so would like to continue using it.

At some point, I extended cord with the red connector from HFS-6 control unit to the FCM. Then when moving the unit from car to car, I lost the piece of the cord with the red RJ-45 connector and so need to replace it and splice it to the cord coming from the FCM. Can anyone provide me with the pinout for the red RJ-45 connector? Specifically, which color wires in the cord coming from the FCM go to which pins in the RJ-45 connector?

Thanks in advance.

--Peter