Customer-premises equipment or customer-provided equipment (CPE) is any terminal and associated equipment located at a subscriber's premises and connected with a carrier's telecommunication channel at the demarcation point ("demarc"). The demarc is a point established in a building or complex to separate customer equipment from the equipment located in either the distribution infrastructure or central office of the communications service provider.
Accedian Networks' MetroNID Network Interface Devices (NID units) provide demarcation between the service provider and subscriber, and define the boundaries of your network, enabling end-to-end service provisioning and high performance service assurance. Accedian’s unique hardware-based architecture delivers the most precise in-service measurements of any demarcation device, without adding delay or delay variation to pass-through traffic. The MetroNID TE unit provides advanced performance testing and service creation capabilities in a compact, cost efficient, carrier-grade in-line element. All NIDs use Accedian’s patent-pending Fast-PAAs™ processing engine. Unlike store-and-forward architectures, the silicon data-path of the Fast-PAAs engine provides wire-speed pass-through performance without introducing frame delay, while at the same time providing microsecond measurement resolution and real-time processing of every frame flowing through the unit.