Cedrus Response Box
To use device with Presentation, go to: http://www.cedrus.com/support/rb_series/tn1043_presentation.htm It contains the drivers you need to install to have the device interface with your computer.
Also, you have to do some fine-tuning in Presentation. Go to input devices and format the serial input device to the appropriate COM port (you can just try them all if you’re unsure), rate at 19200 (if on the box itself, the 2 switch is up and the other 3 are down), Parity: none, Data Bits: 8 and Stop Bits: 1. Test it. On the advanced settings, DTR and RTS control should be enabled and the rest off. Test the device by adding the serial response device, and adding numbers 49-56. You’ll notice each has a (‘1’) or (‘2’) … next to it. That should help you remember that you want to add ‘1’-‘8’. See diagram below.