Hello Blair,

The port for the Cedrus Response Pad is COM3. At that port properties there isn't a Resource tab. You can look at the posted question #5 and answer #6 of John to get a clearer picture.

We did succeed to communicate with the response pad by using the Hyper Terminal.
The problem is how to confige the DirectRT with a USB device without an address. Since there is no address for USB device, as you can see from Jhon's answer #6.

Thank you,
Tali