Modline 5 cables are still available as of May 2020. However, an adapter is available for use with the Endurance/Marathon Cable


Solution:

Use the E-M5PKMC which adapts an Endurance/Marathon 12 pin cable to the Modline 5 sensor connection.


Using the Endurance cable you can follow the color coded cable back to decode which are the RS485 lines (black & white)