Home » » GX6138   (PXI 3U)

High Density Switching PXI Card

  • 38 channels of single-pole, single-throw (SPST) form A relays
  • 0.5 A contact rating per channel
  • Available with 114 channels in a 6U form factor
  • Compatible with PXI Express hybrid peripheral slots


The GX6138 is low cost 3U switching card with 38 individual low level SPST Form A relays capable of switching 0.5 A at 200 VDC. The GX6138 is ideal for applications requiring high density switching.


The GX6138 consists of 38 individual relays and a 78-pin D type connector which makes it is easy to interface to the UUT or system receiver. Each of the relays can be latched or unlatched under program control.

Programming and Software

The board is supplied with the GXSW library, a software package that includes a virtual instrument panel, and a Windows 32/64-bit DLL driver library and documentation. The virtual panel can be used to interactively program and control the instrument from a window that displays the instrument’s current settings and status. In addition, interface files are provided to support access to programming tools and languages such as ATEasy, LabView, LabView/Real-Time, C/C++, Microsoft Visual Basic®, Delphi, and Pascal. An On-Line help file and PDF User's Guide provides documentation that includes instructions for installing, using and programming the board.
A separate software package - GtLinux - provides support for Linux 32/64 operating systems.


  • Data Acquisition Systems
  • Process Control Systems
  • Factory Automation
  • High Density Switching Systems