Nortel NT5S01NAE5 (telecommunications transmission and networking portfolio) Telecom System Card / Module

The Nortel NT5S01NAE5 is a Business Ethernet Switch BES120-48T, a 48-port PoE-capable switch in Nortel’s Business Ethernet Switch (BES) range, sharing its NT5S-prefixed part numbering with the smaller BES50 and BES1010 switches already catalogued from the same family. It is a fixed-configuration edge switch aimed at small-to-medium business deployments, providing Power over Ethernet to connected IP phones, access points and cameras alongside standard Layer 2 switching. Tech-Star supplies this as a secondary-market unit for maintaining or expanding an existing BES120 deployment. Fixed-configuration edge switches like the BES120 are typically deployed at the access layer feeding phones, cameras and access points directly, rather than in the network core, and PoE budget across the switch is the usual constraint engineers plan around when specifying a replacement or additional unit.