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The slave amplifier is set to "Standby Enable" via the GPI line. In this way, a 3v3
signal on its GPI line will hold it in standby. Under normal operating conditions,
the 3v3 signal will be supplied by the master amplifier though the NC relay
contact. Should the master amplifier go into "Protect", it will flip the relay contact
and so bring the slave amp out of standby to take over. Similarly, should it lose
power for any reason, then the 3v3 supply will collapse, also causing the slave
amplifier to take over.
In ICORE, select the
(View
Device Properties)
property of the
backup
there be a switchover. Note that if the master amplifier's fault condition is
rectified, then it will take over again and the slave will automatically be put into
standby.
Remember you will need to connect the link output(s) to the slave amplifier and
also the speaker(s) to both units!
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MASTER
amplifier and open its properties window
amplifier to 0 to minimise the break in audio, should
Set the GPIO Config
"Output" property to
"A/P Monitor".
Next select the
backup
amplifier and
open its properties
window.
Set the GPIO Config
"Input" property to
"Standby Enable".
We would recommend
you also set the
"Power On Delay"
Amplifier Operator's Manual
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