Crosspoint switching of if signals so that each of 20 inputs in the 110 mhz to 210 mhz range can be connected to any of 23 outputs with no one input having more than one output; digital control signals for input and output; oper pwr rqmts 115 vac, 60 hz, single ph; o/a dims 19.0 in. Lg; 18.0 in. W; 6.0 in. H; rack mounted