National Instruments 779556-01 Multifunction DAQ Accessory 

National Instruments part number 779556-01 is an identifying part number for the BNC-2090A, a PXI Multifunction DAQ Accessory with 16 Channels, 1-Pin Female BNC, and 68-Pin Female SCSI. The 779556-01 is an analog breakout terminal block designed for desktop or rack-mounted use, compatible with PXI Multifunction I/O Modules. It offers 16 analog input (AI) BNC connectors that support either eight differential or 16 single-ended channels. The terminal block also includes two analog output (AO) BNC connectors, two user-defined BNC connectors, one analog programmable function input (APFI) BNC connector, one PFI BNC connector, and two 68-pin I/O connectors for connecting DAQ devices. 

Additionally, the 779556-01 provides a spring terminal block for digital I/O and PFI connections. This versatile accessory is frequently used in building complex monitoring or control systems that involve multiple devices and interfaces. The Rack-Mount Connector Accessory allows for direct connectivity between a PC-based DAQ card and various National Instruments hardware. Additionally, this part number supports differential measurements, enhancing its functionality in diverse applications. This terminal block features various field connections for analog and digital inputs and outputs. 

It includes 16 BNC connectors dedicated to analog input connections. For analog output, there are 2 BNC connectors along with an additional BNC connector for the APFI 0 input. Digital input and output connections are supported through a BNC connector for PFI 0, as well as 2 user-defined BNC connectors. Additionally, spring terminals are provided for further connectivity options. Lastly, this device weighs 700 g or 24.69 oz has an operating temperature range from 0 to 70 °C and measures 1.73 × 19 × 3.82 inches in dimensions.