EA 946 MODULATION GUARD VERSION 2.10; INSTRUCTIONS FOR USE
EELA AUDIO Parmentierweg 3 5657 EH EINDHOVEN THE NETHERLANDS
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OPERATIONAL PRINCIPLE:
After the downloading has been successful, or after the RESET switch is pressed, the
EA946
automatically comes into operational (guard) mode. The AUDIO-signal and the
external (if “error detect” function is activated) control input are being monitored.
- The green LED "AUDIO present" indicates there is a signal present on the "STUDIO"
input which is above the programmed minimum level. If for some reason the signal
should drop below this minimum the LED "AUDIO present" will go out and the LED
"AUDIO ERROR" will flash. This flashing means there is an error detected but the
EA946
will not yet take any action.
- If the external ERROR input is activated the LED "EXT ERROR" will start flashing.
Also in this case the flashing means that there is an external error detected but the
EA946
will not yet take any action.
If the studio signal remains below the preset level, or the external error input is
activated, longer then the preset "AlarmTime" the internal buzzer will give (when
enabled) a warning sign.
- If during the "ActionTime" the studio signal has not returned above the preset
minimum level the LED "AUDIO ERROR" shall be lit permanently and the AUX-source
will be activated and routed to the transmitter (if the option ‘Audio error’ was enabled in
the Error detection box of the configuration program).
- If during the "ActionTime" the external input still is active, the LED "EXT ERROR" shall
be lit permanently and the AUX-source will be activated and routed to the transmitter (if
the option ‘Error detect’ is selected in the ‘External input function’ box of the
configuration program).
The LED "BACKUP" indicates the AUX-source is active and routed to the transmitter.
In both cases the
EA946
will, after the "ActionTime" has past, try to make contact with
any of the (max.) 5 preprogrammed service telephone numbers.
The LED "DIAL" will now flash as a sign the
EA946
is dialling out trying to make a
connection.
This "DIAL" LED will be lit constantly if a connection has been established.
An external alarm OUTPUT is available to activate at this stage an external warning
sign. It is activated when an error occurs and the Alarmtime has passed. It is
deactivated again when the ActionTime has passed.