Power LED on SCB-100 Not Lighting

Updated Feb 4, 2019

Reported In


  • SCB-100

Issue Details

I've connected a PCI card to the SCB-100 breakout board, but the signal accessory power LED (DS1) is not lighting up.


The SCB-100 has a DIO/passthrough mode used to interface with DIO devices, TIO Series devices, and DAQ devices without analog functionality. In that mode, the DS1 LED does not light up. 

You can check if your SCB-100 is in this mode by checking the positions of switches S1-S6 against the following diagram.


Additional Information

For more information on DIO/passthrough mode or to learn more about the other settings available to you, see the SCB-100 Installation Guide.