Nortel 32UPB00302EWK (OPTera Metro / PDH-SDH / Passport-MSS / networking portfolio) Telecom System Card / Module

The Nortel 32UPB00302EWK is a common control unit, the card that interfaces the multiplexer shelf to its 2 Mbit/s trunk connection and coordinates the tributary cards plugged into the same shelf. It is part of Nortel’s PDMX platform, a programmable digital multiplexer sold as a complete transmission system for private digital telecommunications networks, built around a bus-connected shelf where a control unit handles the 2 Mbit/s trunk interface and tributary cards provide the individual subscriber and data connections. Installations built on this platform remain in service wherever a private-network operator has not yet replaced its PDH transmission layer, and stock like this is typically bought to restore a failed card, keep an existing shelf at full capacity, or support ongoing maintenance of the installed base. As with any legacy transmission spare, confirm the exact card revision and shelf compatibility against your installed system before ordering. Tech-Star (UK-based, shipped worldwide) sources and tests refurbished Nortel transmission spares to support installations still running this platform. Please contact our sales team for current stock and pricing.