65 Aleksandar Stamboliyski Str., 8000 Bourgas, Bulgaria
Tel: +359 56 820027, Fax: +359 56 836700
E-mail: [email protected] ,Web: www.devabroadcast.com
- 77 -
APPENDIX 1
ALARM TRIGGERS
After collecting all the data, the DSP-based core compares the values measured with the
predefined by the user threshold levels, for all the alarms monitored. In case that a parameter
is beyond limits, the device will initiate the sending of an alarm notification via the selected
communication path. All the alarm events are stored in the device’s log. It is essential that, if there
is a very short fault of the signal, with duration shorter than the alarm Trigger time, the device
would not trigger an alarm.
There are several Alarm Triggers for the following parameters:
RF
,
MPX
,
Left
/
Right Audio
,
Pilot
and
RDS levels
. An option for defining different limits for each of the parameters is present.
All these values, the
Trigger time
and the
Release time
have to be assigned separately for each of
the alarms.
Block Diagram of Alarm Automata
