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    • In Stock
    • Part #: DSX-1091001
    • Model: 4COIU-S1

    4-Port CO Line Card 1091001 NEC DSX-40

    This expansion card will allow you to add up to 4 additional CO lines to your DSX-40 digital business phone system.

    Warranty

    2-Year Manufacturer's Warranty

    Advanced Replacement

    If this equipment fails within the first 30 days, we'll ground ship a brand new replacement part for free!

    What's Included

    4-Port CO Line Card
    Product Description

    This expansion card will allow you to add up to 4 additional CO lines to your DSX-40 digital business phone system.

    Card Features

    • Provides interface for (4) CO lines
    • Maximum (1) per DSX KSU
    • Installs in expansion slot
    • Provides two power failure cut-through circuits
    • If AC power fails, the Card automatically cuts through two line circuits to two power failure single line telephones