I searched forever trying to find this information. Couldn't find it here, so ended up calling Xenarc to get the information. Figured I'd post it here for future searches:
Here are the power connections for the 4-pin molex header on the back of the 700-IDT (pinout is the header on the board, not the cable):
(and in case that IMG goes red-x, a crude ascii version: )
Pin 1: GND
Pin 2: ACC
Pin 3: NC (no connect)
Pin 4: +12V (constant)
Note, that this is not the same configuration as the 4-pin cable on an ATX power supply. Pin-2 on that cable is GND so the monitor will not turn on. Fortunately Pin 3 is NC so you won't fry anything by accidentally plugging in +12V there.
Also, if you want to use the co-axial power plug to the right of the 4-pin header, you need to short Pins 2 and 4 together so that the ACC pin is powered.
Hopefully this helps some people out. It certainly would have saved me a couple hrs of searching. (I kept at it while waiting for Xenarc support to open 45 mins late. :P )