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Table Of Contents

PXI-2501 Topology

Version:
    Last Modified: February 23, 2017

    1-Wire 48x1 Amplified Multiplexer Topology


    1-Wire 48x1 Multiplexer Topology


    2-Wire 24x1 Amplified Multiplexer Topology


    2-Wire 24×1 Multiplexer Topology


    2-Wire Dual 12×1 Multiplexer Topology


    2-Wire Quad 6×1 Multiplexer Topology


    4-Wire 12×1 Multiplexer Topology


    4-wire mode is usually used in 4-wire resistance measurements. One pair of wires supplies the excitation while the other pair makes the voltage measurement. In 4-wire mode, connect your excitation or source leads to CHxA+ and CHxA-, and connect your measurement or sensing leads to CHxB+ and CHxB-, as shown in the following figure.

    spd-note-note
    Note  

    The previous figure shows the DMM connected to the analog bus (AB) of the switch module. Instead of routing signals to the AB, you can connect COM0A+ and COM0A- to the excitation terminals and COM0B+ and COM0B- to the sense terminals of the DMM.

    2-Wire 4×6 Matrix Topology



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