ACU-RITE MILLPWR 3 Axes - Manual (Page 221)

REMOTE STORAGE
MILLPWR ®
Connecting MILLPWR to Your PC
Connect one end of the cable into the serial connector located on the rear of your MILLPWR
operator console. Connect the opposite end of the cable into an available COM port on
your PC.
Note: The COM port must be available—that is, not already assigned a piece of hardware.
You cannot simply disconnect a piece of hardware and connect the serial cable. If
there's no COM port recognized as being available by your PC, then you will need to
make one available (consult your PC owner's manual).
Operation Manual 8-2
Power down both MILLPWR and your PC before connecting
the serial cable.