Altium NEXUS Documentation


Created: September 14, 2015 | Updated: August 20, 2021
Now reading version 3.2. For the latest, read: InxSignalClass for version 4
This documentation page references Altium NEXUS/NEXUS Client (part of the deployed NEXUS solution), which has been discontinued. All your PCB design, data management and collaboration needs can now be delivered by Altium Designer (with Altium Designer Enterprise Subscription) and a connected Altium 365 Workspace. Check out the FAQs page for more information.

Parent page: PCB Query Functions - Membership Checks


Returns all xSignal objects that are members of the specified xSignal Class.


InxSignalClass(ClassName : String) : Boolean/Boolean_String

As you define the Query expression, a pop-up list of all existing user-defined xSignal classes, by name, is presented.

Example Usage

InxSignalClass('PCIE') = True
InxSignalClass('PCIE') = 'True'

Returns all xSignal objects that are members of the PCIE xSignal Class.

Not InxSignalClass('PCIE')
InxSignalClass('PCIE') = False
InxSignalClass('PCIE') = 'False'

Returns all objects except xSignal objects that are members of the PCIE xSignal Class.


  1. The single quote characters (') at the start and end of the ClassName string are mandatory.
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