ToneMatch Cable Extension
If you need an extension for the ToneMatch Cable consider using a CAT-5 or CAT-6 cable (up to 25 feet).
You can use a Neutrik NE8FF to connect the ToneMatch Power Supply to the CAT-5 or CAT-6 cable.
etherCON RJ45 feedthrough coupler for cable extensions
You can finish the ends of the CAT-5 cable with Neutrik NE8MC-B-1 cable connector carriers.