Nortel NTHX20CA (telecommunications transmission and networking portfolio) Telecom System Card / Module

The Nortel NTHX20CA is a Packet Service Processor (Pkt Serv SP2) card within Nortel’s carrier switching hardware range, providing packet-service processing capacity within its host shelf. It handles packet-side signalling and switching functions distinct from the shelf’s circuit-side interfaces, a role typical of Nortel’s converged circuit/packet switching platforms of this generation. Nortel platforms of this type remain in service at a number of legacy carrier sites, and packet service cards of this type are a routine spares requirement for maintaining processing capacity or restoring redundancy after a card failure. Confirm the exact host chassis and shelf configuration before ordering. Tech-Star (UK-based, shipped worldwide) supplies Nortel switching spares to support ongoing network maintenance.