2-Wire 32x1 Topology in PXI 2527 Connects com0+ to com1+ and com0- to com1-

Updated Aug 17, 2018

Reported In

Hardware

  • PXI-2527
  • PXIe-2527

Driver

  • NI-SWITCH

Issue Details

I have an application that requieres to change topologies from 4-wire 16x1 Mux to 2-wire 32x1 Mux in a PXI 2527 Multiplexer Switch Module. When changing the topology, the com0+ and com 1+ channels are connected and the com0- and com1- channels are connected.

Solution

This is an expected behavior due to the Multiplexer Switch Module layout. To allow the Multiplexer Switch Module to have a 2-wire 32x1 Mux topology, it internally connects both individual multiplexers in the 2-wire Dual 16x1 common channels. You can use the 2-wire Dual 16x1 topology to prevent the channels to be connected.

Additional Information

You can consult the NI Switched Help to consult the different topologies this Multiplexer Switch Module supports.

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