| Category : Electronics>Telephony>Phone Systems>TrunkNEC 1091001 DSX-40 4-Port CO Line CardPrice: USD29.95"NEC 1091001 Brand New Includes Two Year Warranty, The NEC 1091001 DSX-40 4 COIU supports 4 analog loop start CO lines. The card has a Mode Switch (for taking the card out of service), a status LED indicating proper card operation, and a port activity LED that indicates traffic on the card. Each 4COIU Card also provides two power failure cut-through circuits . When commercial AC power fails, the Card automatically cuts through two line circuits to two power failure single line telephones. 1091001 Features: DSX-40 4-Port CO Line Card, Built-in Caller ID, Two Power Failure Cut-Through Circuits, Mode Switch, LED Indicator"Other products from Factory Outlet Store & GoGoTech Stores |