Components
Interface Box
An "INTERFACE BOX" (a) transforms
the electrical signals from any
of 10 momentary contact switches and one TTL pulse (via BNC connector) into signals that the computer will interpret as a keypresses, via a USB port.
Button Boxes
Sample "BUTTON BOXES" and cables. The standard package comes with two 5 button response
boxes (b, c), each
with a 15-foot cable. These BUTTON BOXes have four buttons on top, and one button
on the left or right side (for the right or left hands, respectively). Either
BUTTON BOX can be used alone; both can be used
simultaneously via a Y connector (d). When used
alone, the 5 buttons generate "1" "2"
"3" "4" "5" keypresses (from either the left or right
hand box). When used together, the 10 buttons
generate "1" "2" "3" "4" "5" "6" "7" "8" "9" "0" keypresses.
The signal from the BNC generates a "`" (apostrophe) keypress.
The particular keypresses generated
by the INTERFACE BOX can be reprogrammed by the user with web-supplied software.
However, the software to reassign the button-to-keyboard mapping must be run on
a PC. After reprogramming, the new assignments work for all USB ports (PC,
Macintosh, et cetera).