The Agilent 44470D multiplexer module provides 20 channels to switch both high and low input signals to a common bus. It can switch signals up to 250V, 2A, and 60W, or 125VA per channel. This module exhibits low thermal offset characteristics, making it ideal for precision low-level signal routing. It can be operated in either a break-before-make mode or multiple channels close mode. You can make four-wire ohm measurements by programming two Agilent 44470Ds to open/close in the card pair mode. A screw terminal block is provided for ease of wiring.