Help with my A57D

I have an A57D model that I recently obtained from an estate sale but did not come with a power cable. I am trying to rig it just to test for power, but do not know the correct configuration of the pos. and neg. pins. The photo I have attached here shows the PWR/NMEA port with 11 pins (2 in the middle I assume are +/-). Can anyone tell me which is which so I can rig to a battery? Also would reversing them fry the components inside? I am trying to avoid this at all costs.

Please respond assap - thank you in advance.

PS: The owner's manual does not show this

  Powerport.jpg (Size: 75.77 KB / Downloads: 1)