First of all I would recommend checking the link below.
It's the operator manual for the Powermax 65/85. In there on page 3-21 you'll find the cpc pinouts which matches the 1000/1250/1650 for start and transfer. The built in voltage division will be on pins 5 and 6 now.
You should be fine for re-using the cable you already have if the pinout matches the manual(if you didn't modify it).
The CPC port is known as a "Circular Plastic Connector". It is a standard 14 pin amp. plug(female). This is the same plug on the G3 series.
The other cables listed for the 65/85 are for other types of connectivity. We have a cable that will allow a direct interface to the EdgeTi cnc and a few other options on page 3-19
I hope this helps. Have fun with the new machine !
I want one !!
EDIT: if you check out the document library it has a great breakdown of the 65 and 85 for ordering.
just type in 65 or 85 in the document title, then click submit and roam free.