This 8 port analog interface daughter board provides four analog extension ports used for on-premise analog stations, FAX machines, and analog modems. Blade provides LED status, Ring Generator, Caller ID Sending ability, Message Wait Lamping ability, feeding polarity reverse ability, and constant current type battery feeding (25mA / -28Vdc).
It is installed on the CD-4LCA or CD-8LCA to expand the analog station port capacity.
