Nortel NTPN27AG (telecommunications transmission and networking portfolio) Optical Transmission Module

The Nortel NTPN27AG is a 4-port OC-3/STM-1 Channelized ATM/IMA/CES Function Processor for the Nortel Passport Multiservice Switch platform, part of the same documented Function Processor family as the platform’s other channel- and cell-based interface cards (such as the NTNQ50AA 8-port E1 ATM/IMA and NTHR23DA 12-port DS3 ATM Function Processors). It channelises each OC-3/STM-1 port down to sub-rate circuits and supports ATM, Inverse Multiplexing for ATM (IMA) and Circuit Emulation Service (CES) traffic types on those channels, giving the Passport shelf flexible sub-rate ATM and circuit-emulation capability. Passport Multiservice Switches remain in service across a number of established carrier ATM/IP networks, and genuine Function Processor cards such as this one are a routine requirement for maintaining full capacity or restoring redundancy after a card failure. Specifiers should confirm the exact channelisation plan and shelf compatibility against their specific Passport configuration before ordering. Tech-Star (UK-based, shipped worldwide) stocks Nortel Passport Function Processor cards to support ongoing network maintenance. Please contact our sales team to confirm exact compatibility and for current stock and pricing.