Tektronix Camcorder 2200 Manual Do Utilizador

2-83

The

 button enables and disables GPI outputs and 

control of the switcher from GPI inputs. When

 is on, 

control inputs from GPI relay contacts are read by the switcher, 
and GPI outputs from the switcher are also active for external use. 
When the button is off, all GPI inputs and outputs are disabled.

The

 button functions in a manner similar to that of 

the

button, except that it controls peripheral access to 

the switcher via any peripheral-configured serial port and it does 
not acknowledge protocol messages while it is turned off.