SM4-3kW series of Stacking Switches
Datasheet "Wide band Stacking switch SM4-3kW-MonoBand"
Please see N6MJ`s write up on this technique
Multiplexer technology ready ©
Non used ports loaded to 50 ohms resistors.
Control voltage: 12VDC (24VDC on custom order)
Control wire required: Eight conductor
MOV surge protection on control lines.