The Keysight 34925A module (formerly Agilent's electronic measurement technology) is a high-speed multiplexer implemented by high-speed FET relays, which enables a maximum channel switching rate of 1000 channels / s. The module can be used in the 34980A basic device.
Typically, this module is used in automatic test systems for very fast data acquisition and to increase the test throughput, and above all wherever relays with a very long service life have to be used. 2-wire and 4-wire measurements are possible within one module; however, it can also be configured as a 1-wire multiplexer. With the standard 50-pin Dsub connector, normal cables and terminal strips can be contacted.