I have an Eley & Warren Micro Vertex 500-750 height gauge that did not come with the external power box.Click image for larger version. 

Name:	Micro Verttex 500-750.png 
Views:	447 
Size:	259.4 KB 
ID:	11907
So, I can't power the controller up, or even attempt to power it up. Eley hasn't been responsive yet to my emails. Can anyone point me to an independent UK calibration lab or other resource that might be enough familiar with this class of height gauges to help me? (I'm not asking for help for free.) A pinout of the 15-pin D-sub RS-232 connector would be cool. I guess that +5v or +12v positive and negative currents would do the trick, but I'm not an electronics guy. So far I have, effectively, a potential air-bearing height transfer gauge. What would be really cool would be to buy a power box and a user or technical manual. I think this machine was built around 1988. Ask me any questions that seem pertinent.