Nortel Networks NTK555CAE5 Shelf Processor Module

NTK555CAE5 is the SP-2 shelf processor circuit pack for the Nortel/Nortel-era 6500 series (Ciena OME 6500 platform), a compact module that installs in a 6500 shelf to provide the shelf’s primary processing with built‑in flash memory. The SP-2 variant is the standard processor option for the 6500 family and is commonly sold as a SP-2 KIT for 6500-7/14 slots, often including NTK555CAE5 and NTK561JN to simplify field replacement. In operation, the NTK555CAE5 handles shelf‑level processing tasks that manage software loads, provisioning, and overall control of the shelf’s processor elements within the 6500 enclosure. The part is documented as a Shelf Processor Circuit Pack (SP‑2) for the 6500 platform and is referenced alongside other SP‑2 variants in platform planning materials. Use of this module requires matching to the correct SP‑2 slot configuration in the appropriate 14-slot or 7/14-slot shelf and compatibility with the accompanying 6500 hardware and software stack.