The National Instruments part number 777696-01, also known as the PXI-2501 FET PXI Multiplexer Switch Module, is engineered for high-performance applications requiring flexible connectivity and fast signal scanning. This module features a robust configuration capability with 48 channels, supporting 1, 2, or 4 wire configurations, making it versatile for both multiplexer and matrix switch applications when paired with the appropriate terminal block accessories. Its FET switch technology allows for high-speed scanning of low-voltage signals with minimal settling times, enabling a maximum scan rate of 15,000 channels per second and a deterministic scanning process facilitated by a 1,024-step scan list. The module is equipped with a 68-pin male SCSI connector to streamline I/O connections. It measures 21.6 cm x 2.0 cm x 13.0 cm and weighs approximately 6.1 ounces, ensuring efficient use of space within your system. The PXI-2501 handles trigger requirements superbly, with a capability of managing 70 ns PXI trigger lines and 500 ns front panel trigger lines, while output triggers can be generated through both PXI and front panel inputs, each with a pulse width of 1 μs. While typically utilized in four-wire mode for resistance measurements, the 777696-01 can also operate as a 2-wire, 6 by 4 crosspoint matrix. Its default two-wire configuration mode ties together CHx+ and COMx+ channels along with CHx– and COMx– channels for a corresponding bank, though users also have the option to operate in one-wire, three-wire, and four-wire modes. The PXI-2501 is a reliable choice for applications demanding efficiency and precision in signal management.