From the 11 July 2022 FAQ at www.W5SWL.com
There are many uses for these types of RF Switches. Here is the wiring detail for a Loral 042-B347-A2C-7C2 switch.
Loral RF Coaxial Switch DC-3GHz 4 Pole
SMA 042-B347-A2C-7C2 Wiring
Pin Use 1 +24VDC 150mA
2 Neg (GND)
3 Logic 1
4 Logic 2
5 Logic 3
6 Logic 4
Logic values, 0-.8VDC Off, 2.4-5.5VDC On