Hello I got a microwave switch from General Microwave model 1699. It is a pin diode switch 0.1Ghz to 20Ghz.?

It comes from a hp 8720B They are used to switch around the RF path in the source. Would I be so lucky you know what voltages is needed to operate the switch without ruining the switch

There are 2 pins called LGC. what does LGC mean ??

best regards Peter