That thing only uses two wires and a standard serial port. I gave mine up when I left the last site I worked at with NW8K. It shouldn't be too hard to make one if you know what wires go to what pins. You may have to use alligator clips to connect it to the zone sensor because you won't have the headphone jack connector.
Does anyone have a MN-CIM converter for sale for talking to a Micronet VAV Controller or know a workaround with a new device? I have the Mnet-CI software.
The MN-CIM is a convertor, the micronet bus is 12vdc and serial is 5v, do not try to connect them direct. Since I have MN-CIM I haven't needed to find out what it is but believe its proprietary and not a standard 485 convertor.
Have the customer contact a Schnieder IFO(independent field office) to purchase a MN-CIM is probably your best bet.