TEM A07E0011, Operation Manual, Page: 25 / 131

TEM A07EXXXX – 1 Unit Transmitters Page 25
8.6 Audio Inputs Connectors Description
Here is possible to see the particular of Audio Input/Output connectors. When the desired audio input is selected
by front panel Menù ( see the following pages) one of the shown input connectors is activate.
An “ ON AIR OUTPUT” connector is present. Here will be present the MPX Audio baseband signal, taken just
before the internal FM Modulator. It means that if MPX input is selected, here the MPX signal will be present, but
for example if Stereo L+R is selected , this connector will reply a MPX signal generated by internal Stereo Encoder.
The same will happen in case of AES-EBU audio input selection
8.7 Audio Alarm Detector & Automatic Audio Changeover Description
A07E0XXX TEM Opera Plus Family Transmitters are internally equipped with AUDIO ALARM DETECTOR and
AUTOMATIC AUDIO CHANGEOVER .
This feature is the ideal solution to know, by the Audio Alarm Detector, if the Main Audio program source is
present or not. It is possible to select a minimum FM deviation level (15-30KHz) and time threshold/Audio return
(FAST or 45-60-150-180-360 Seconds) to consider the Main Audio program as KO. In case of alarm, text message
on display along with red led indication on the front panel will be present. If A07E0XXX TEM Opera Plus Family
Transmitters are equipped with remote control telemetry, you will receive the signalization ( sms, trap, email, TC-
TS.).
It is also possible to enable the Automatic Audio Changeover. It is based on the Audio Alarm detector
signalization. To take advantage of this feature it is necessary to have a Reserve Audio Program available .In case
of alarm the changeover will automatically switch to this reserve source. The system will return to the main Audio
Source automatically as soon as available.
It is possible to select the Audio Alarm detector signalization ON-OFF and select the Audio Input Source priority
for the Automatic Audio Changeover. The possible priority are Stereo L-R Vs. MPX or MPX Vs. Stereo L-R.
It is also possible to configure different thresholds for audio alarm level, time, restoration intervention, and the
reduction RF Power in case of NO Audio Programs available condition