[TowerTalk] Identity of DowKey relay

[John King via TowerTalk]

I have a REMOTE DoiwKey relay with the nomenclature P/N 71 on it. It has seven female connectors on it.  There are 6 connectors in a circle and 1 in the center which indicates to me that the feed line  connects via a PL-259 to the center connector and the relay switches through the 6 in the circle to select the desired output feed line. 

It has a round female multi pin  control receptical where the control attaches. I do not have the control or selector box so I have no idea as to voltage to operate. It appears to be a SUPER multi-coax selector switch.

Is anyone familiar with this remote antenna selector switch? I need data regarding voltage required and a diagram   if I can get one.Your help will be greatly appreciated. 74, John, K5PGW