Autocue BORIS Multiple control - Manual (Page 4)

Virtual Spider Box Guide Page 4
4. T HEORY OF O PERATION
The VSB allows an unlimited* number of hand or foot controls to be connected to a
prompter machine to control the prompt output. Selection of the appropriate controller
is based on three methods. The three modes of operations are as follows:
(*-One COM port is required for each separate scroll control)
Mode A – Active Controller Wins:
In this mode the active scroll control must return the potentiometer to zero (counter
clockwise) and the other controller must advance the potentiometer. The VSB will
switch to the new controller. Control is maintained as long as the pot is not at the zero
position or as long as all the other controls have their pot at zero. To switch, it is
important that the controller giving up is returned to zero or switching will not occur.
Mode B – Last User Wins
In this mode, the VSB will switch anytime any potentiometer is adjusted, either up or
down. This mode has the advantage of working if a centre pot mode is selected. This
mode is more intuitive and does not require the controller giving up control to return
to the zero pot position, therefore hand and foot control combinations are best suited
for mode B operation.
Mode C – Fastest User Wins
The user with the potentiometer at the highest rate will have control the prompt
output.