Batboard

I bought a used Ledco CF-19 dock (dock only) with the intention of converting to that platform from the CF-29.

The dock has a strange threaded DC power connector on the back of the dock right above the monitor connection. It has a large center connector.

Do anyone know the part number for the cable that connects to this? I have a Lind power supply already and I cannot find a part number for this cable to run from the power supply from the dock, nor can I find any documentation.

Anyone have any ideas?

My notes say it is a PA1555-2154 FB, output rated at 15VDC at 5.5A and has a 15A, 32V mini-fuse.

Can you save me from asking someone to take a picture of the dock and trying to figure it out for myself? Any idea what the WWAN and GPS antenna connectors on the dock are? SMA? RP-SMA? All I can find online is "dual hi-gain" and that isn't very specific.