The National Instruments SC-2051 Cable Adapter (Part Number: 776335-91) is an essential signal conversion accessory designed to facilitate the connection of 24 digital input/output signals to standard pin connections. This adapter is compatible with NI-6503 and DIO-24 devices, as well as MIO devices equipped with up to 24 additional digital channels. The SC-2051 can be seamlessly connected to a 50-pin DAQ board using an NB1 cable or to MIO devices via an NB5 cable. It features two 50-pin ribbon cable connectors, allowing for flexible hardware configurations through daisy chaining. Additionally, the SC-2051 includes three 26-pin connectors suitable for integration with various signal conditioning accessories, including SSR Series 8-channel solid-state relay boards and digital signal conditioners from the SC-206X Series. Designed for convenience, it comes with metallic standoffs for easy positioning on a desktop near the host computer, and a rack-mount kit is also available separately. Users can ground the adapter to the chassis using a dedicated jumper for enhanced stability. Although the SC-2051 has been designated as obsolete, it remains available for purchase and repair through Apex Waves. The adapter dimensions are 5.2 inches by 4.9 inches by 1.9 inches, and it includes a 2-3 year warranty, with user and maintenance manuals available for download. For pricing details, please contact a sales representative.