Nortel NTLX61AA (OPTera Metro / PDH-SDH / Passport-MSS / networking portfolio) Telecom System Card / Module

The Nortel NTLX61AA is a Shelf Interface Module (SIM), a peripheral circuit pack used in the DMS-Spectrum Peripheral Module (SPM), a peripheral shelf architecture within Nortel’s DMS switching family. It provides the control and interconnect interface between the SPM shelf and the rest of the switch, coordinating the shelf’s card complement and passing status and control information back to the office’s core processing. DMS-Spectrum SPM installations of this generation remain in service at telephone operators worldwide, and genuine spares like this restore shelf-control capacity after a card failure. Specifiers should confirm exact shelf and generic-program-load compatibility before ordering. Tech-Star is UK-based and ships worldwide. Contact our sales team for current availability and pricing.