The Keysight 34924A module for the 34980A Multifunction Switch/Measure Unit is a high-density, high-speed multiplexer for general purpose scanning. It uses reed relays to achieve scan rates up to 500 channels-per-second. Use this module for high-throughput automated test applications as well as high-speed data logging and monitoring tasks.
2- and 4-wire channels may be mixed on the same module. Standard 78-pin Dsub connectors allow for use with standard cables, terminal blocks, or mass interconnect solutions.

70 2-wire channels
Mixed 2- or 4-wire configurations
High-speed reed relays, with relay counter
500 ch/s scanning
+/-150V peak, 0.5A switch, 1.5A carry current