Codan AC-3E control card provides a convenient method to interface two E&M connections to each set of radios in a subrack. The card allows a microwave channel to selectively access local coverage radios at multiple sites. The local radio is typically selected by a tone signalling method, i.e. DTMF or tone remote. This radio may operate as a repeater in a “normal” mode and would be addressed through the microwave/dispatch in a “remote” mode.
