Nortel NT7R51AD (telecommunications transmission and networking portfolio) Telecom System Card / Module

The Nortel NT7R51AD is a Local Carrier Interface Card for the Meridian 1/CS1000 platform, used exclusively on Carrier Remote configurations where a Meridian 1 cabinet is extended to a remote location over a digital carrier link. It provides a 120-timeslot (one superloop) interface between the local network and the intelligent peripheral equipment feeding that link, equivalent to four standard network loops of capacity. Tech-Star supplies this as a secondary-market spare for maintaining an existing Meridian 1/CS1000 Carrier Remote configuration. Local Carrier Interface cards are specific to the Carrier Remote configuration rather than a standard Meridian 1/CS1000 cabinet, so buyers should confirm their system is actually running Carrier Remote before ordering, since this card has no function on a conventional single-site Meridian 1 installation.