ATEIS IDA8C - Manual (Page 108)

Ateis Studio 108
© 2012 ATEÏS
Enable 1K tone for monitoring. If this option is on, during Start Time and End Time, a 1K tone
signal send to amplifier for monitoring.
o Start Time:(hh:mm)
The time to start sending 1K tone.
o End Time:(hh:mm)
The time of end 1K tone sending.
4.1.7 Bypass Mode Paging
IDA8C/SX provide a safe mechanism for paging when microchip inside the device is not working. We call
it bypass mode paging. When system is in bypass mode paging, paging source through normal amplifier
directly without DSP component processing, and backup amplifier can't working due to micro-controller
is crash.
Source of bypass mode paging
There are two source can be the input of bypass mode paging:
Fireman microphone
Fireman microphone is a microphone with a button can be plugged in front panel of IDA8. When
system under bypass mode paging, press the button to start paging, release button to end
paging.
Audio coming from PDC1
IDA8C allow you to use PDC1 be the source of bypass paging, it need a button to start paging
also, the by-pass mode input contact can connect to a button for triggering bypass mode
paging.
Fireman microphone with higher priority than PDC1 source.
Condition of Bypass Mode Switching
There are two ways to switch system state to bypass mode paging:
Hardware monitoring
In IDA8 devices, there is a hardware monitored mechanism to detect micro controller crash,
system switch to bypass mode paging if micro controller crash detected.
Bypass mode input contact
Connect pin CMD and GND of bypass-mode input to a button, this input contact can trigger
bypass mode paging.
cascade
If the application use multiple IDA8s and use fiber optic as Ateis Net transmitting media, you need
to do an extra wiring for bypass mode paging cascade, see following figure: