My friend, Chris, at REPC gave me two Appleline devices today but I don't know what they're for. They each have one 25 pin (male) "modem" connector, and one co-ax "controller" connector. They were made by Apple in 1985, and they run on 24 volt AC. They also have an ID sticker from a local bank. Does anyone know what these devices are for? What "controls" them? Thanks for your help. Ernest