Tendzone TYCHO T 1212/CA - Manual (Page 24)

Input/output type refers to the input sound volume/output sound volume of the control system. Gain Step refers to the dB
change corresponding to the step of the adjusted sound volume due to each trigger; and there are two effects, i.e.
Increase and Decrease, which refers to the increased or decreased sound volume caused by each trigger.
As is shown in the chart, the level of input channel 1 will be increased by 5 dB when electrical level of GPIO input channel 3
is changed from low to high.
d) Channel Mute Setting
As is shown in the chart, output channel 4 is be muted when the level of the pin of GPIO output channel 4 is changed from
low to high.
e) System Mute Setting