Chapter 3 SC-2051©National Instruments Corporation3-3SC-205X Series User ManualSC-2051 ConnectionConnect your SC-2051 to a 50-pin DAQ board via a type NB1, 50-pinribbon cable. To connect the SC-2051 to the AT-MIO-16D orAT-MIO-16DE-10, you will need a type NB5 cable; use a PR50-50F cablefor the DAQCard-DIO-24. Make this connection with the host computerpowered off. Connect one end of the ribbon cable to the SC-2051 at eitherconnector J1 or J2. Connect the other end to the DAQ device installed inyour computer.Warning Do not connect the SC-2051 to a board for which it is not designed. Suchconnection can damage the SC-2051 and any or all boards/accessories connectedto the SC-2051 and host computer. National instruments is NOT liable for anydamages resulting from incorrect connections.To connect your SC-2051 to the signal conditioning accessories, use a typeNB7, 26-pin ribbon cable. This cable connects the SC-2051 to any of theSC-206X Series boards or to the 5B Series backplane. An 8-channel SSRSeries backplane with a 26-conductor ribbon cable is also available forconnection to the SC-2051. For instructions on making these connectionsto the proper signal conditioning accessories, refer to Cable Connections inChapter 10, Installation and Operation.ConnectorsThe SC-2051 has two 50-pin ribbon cable connectors that are connectedpin-by-pin to each other. You can use either of these connectors to attachthe SC-2051 to the DAQ device via a cable. You can daisy-chain thesecond connector to other 50-pin accessories.The SC-2051 also has three 26-pin ribbon cable connectors that you can useto connect to the signal conditioning accessories. The digital ports arecompatible with the SC-206X Series digital signal conditioners as well aswith the 8-channel SSR Series solid-state relay board.