Need Wiltron Scalar Detector

I have a Wiltron 5411A Scalar Measurement test system (Scalar Network Analyzer - 3GHz) but I don't have any detectors. I'm not sure if all the Wiltron scalar detectors are compatible, but I need something that will allow me to test out this beast to see if everything is ok with it. So....I need any compatible detector, either

Alternately, if someone knows the proper front panel detector input connections, I could probably fake a detector, but I don't know the pin-out or signal levels needed. Does anybody know this info...or where I can get it?

I don't have a service manual for this....so I might be interested in purchasing one also.

Thanks, Caesar Valenti