At the heart of the AC-12 is the AC-1 autocoupler card whichoffers a host of features not found on any other coupler at any price. The AC-1 can do it all. Both local and remote manual controls let you operate the coupler from anywhere. The AC-1's status indicators for ring, online, power and clipping are visible through the smoked front cover, making it easy to tell the status of each card. Remote outputs for ring and online are also available on the back of each card. A user selectable, momentary or latching, dry relay contact closure occurs whenever the coupler comes on-line. The AC-1 offers a ring counter feature that lets you select on which ring each coupler will answer.