Ciena NTK 55522E503 DC Power Shelf Control Module

The Ciena NTK 55522E503 DC Power Shelf Control Module is a DC power management component designed for the Ciena 6500 series, configured specifically for a 2-slot shelf that houses the platform’s DC power infrastructure. As part of Ciena’s NTK family of shelf hardware, this module works alongside the shelf processor/control and DC power input cards to supervise and coordinate the power subsystem that energizes the 6500 shelf in carrier deployments. In typical 6500 configurations, DC-powered shelves rely on dedicated NTK modules to enable reliable power distribution within the modular shelf backplane, a design approach documented in Ciena’s 6500 product family materials and data sheets. The NTK 55522E503 designation identifies this particular DC power shelf control module used in 6500 2-slot shelf assemblies, distinguishing it from other NTK components used across different shelf types and configurations. Public references to 6500 hardware catalogs and secondary-market listings consistently link 55522E503 with 2-slot DC-powered shelf configurations, underscoring its role as the DC power management element within the platform’s power architecture.