Two groups with total 12 ways central channels and 2 ways backup
switch channels are provided .Each group will be connected
separately with 6 central power amplifiers and 1 backup power
amplifier.When any one of 6 central power amplifiers of any group
connected to this switcher,it will automatically switch the channel
to backup power amplifier of corresponding group to keep system
working normally.Under the normal condition,manual switch between
entral amplifiers and backup amplifier is available.
When any two or above of central amplifiers connected to the same
group go wrong ,it will discontinuously alarm with the
corresponding LED flickering go remind the user of replacing them
with others in time.
12 LEDS can intuitionisticly show the status of every working
amplifier.And this equipment provides with 12 ways of short circuit
t control through which other equipment can be controlled when
central channel goes wrong.