The diagram below displays the proper sequence to connect your device, cable, adapter and test fixture. The 653x Cable Adapter is used between the VHDCI cable and the SCSI test fixture. As seen above, the 653x Cable Adapter has a 68-pin 0.050 SCSI D-Type Connector Female (Receptacle) Connector, as such, when using the adapter with a custom test fixture, the test fixture must have a 68-pin 0.050 SCSI D-Type Connector Male (Plug) Connector. For more information on what connector to use on your custom test fixture when using the 653x Cable Adapter please see the Digital Instruments Custom Cables, Replacement Connectors and Screws Guide.
Note: The example diagram below uses the PXIe-6535, however the 653x Cable Adapter compatibility is not limited to this device. For more information on the 653x Cable Adapter compatibility please see the Compatible Devices, Modules, and Cabling for the 653x Cable Adapter.
Figure 2: Connection Diagram
Additionally, the 653x Cable Adapter gives the user direct access to the PFI lines via screw terminals as seen in Figure 3. The PFI lines must be manually connected through the screw terminals to ensure correct signal routing. Note that not all PFI lines can route from the PCI-6533/4 or PXI-6533/4 to other HSDIO devices. See your specific device's User Manual for more information on what PFI lines can be used. For an example of how to connect PFI lines and how to modify the PFI lines in your program please see the 653x Cable Adapter User Guide linked above.
Figure 3: Screw Terminal Access to PFI Lines