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N2266A 2-Wire, 40-Channel Multiplexer Module

Product Status: Discontinued | Currently Supported
This product is no longer available

A replacement for this product is available:

Key Features & Specifications

Module Features

  • 1A, 200V, Configurable for 1, 2, and 4-wire modes
  • Built-in relay cycle counters
  • High speed reed relays: 350 channels/sec
  • Thermal offset: <50uV


  • N2290A Screw Terminal
  • N2297A DIN96 to Twin D50 cable
  • N2299A DIN96 to Quad D25 cable


The Keysight N2266A is high speed, high-density reconfigurable multiplexer (MUX) module for high-throughput production test. It can be operated in either SCPI or 3488A mode. In the SCPI mode, it can be configured in any of the following ways:

  • one 80-channel, 1-wire MUX
  • one 40-channel , 2-wire MUX
  • dual independent 20-channel, 2-wire MUXs
  • one 20-channel, 4-wire MUX

A connection terminal is not provided with the N2266A module. A screw terminal block and a DIN96-to-DIN50/25 cables are available separately for ease of wiring.

See the new 34980A Multifunction Switch/Measure Unit as a new low-cost alternative.