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Redback® A 1730 Message Player
4.0 OPERATION
When a trigger is activated either by the rear trigger contact, or the front switches, the unit will play an MP3 file stored in
the corresponding trigger folder (e.g. if trigger 1 is activated, the unit will play the MP3 file located in the folder labelled
trig1). Where the unit accesses these folders is determined by the presence of the micro SD card in the front of the unit.
Micro SD card NOT inserted:
The A 1730 has MP3 files stored in it's internal memory, and will use these default files for playback when a micro SD card
is not installed.
The MP3 files stored in the internal memory can be modified by uploading new files from a micro SD card
(refer to section 5.0 for details).
This feature is useful for installs where tampering is an issue, or where theft or loss of the micro SD card from the front of
the unit could prevent the unit from operating.
Micro SD card inserted:
When a micro SD card is inserted, the A 1730 will use the MP3 files stored on the SD card for message playback, and
ignore the internal memory files.
Note: If a blank micro SD card is inserted, the A 1730 will copy the contents of the internal memory to the SD card, and
then use the SD card for playback. The contents of the SD card can then be altered on a PC, and either used with the card
inserted back into the unit ,or uploaded back into the internal memory and the card removed (see section 5.0 for details).
4.1 Trigger Modes
Alternate: When the A 1730 is in Alternate mode (DIP1 switch1 OFF) the trigger contact must be held closed for the
duration of the MP3 play time, if it is released before the MP3 ends the MP3 will stop playing immediately. If the contact is
held closed continually the MP3 will continue to loop over and over until the contact is released.
Momentary: In Momentary mode (DIP1 switch1 ON) a momentary closing trigger contact or pulse on the trigger pins
will activate the MP3. The A 1730 will continue to play the MP3 till it finishes, and will stop playing and wait for another
trigger activation.
To stop an MP3 playing when in Momentary mode the Cancel trigger or Cancel switch is used. A momentary closing
contact on the Cancel trigger or closure of the Cancel switch will stop the MP3 playing (it is recommended that the Cancel
contact or switch be held up to 2 seconds to ensure the MP3 stops playing)
4.2 Emergency tones (Alert and Evacuation)
The Alert and evacuation tones conform to Australian Standards AS1670.4 and are used to notify building occupants of
an emergency situation.
Alert: The Alert tone is activated by a closing contact on the ALERT trigger or by pressing the Alert button on the front
of the unit and can be used in Alternate or Momentary setup as mentioned in section 4.1. The Alert tone comes with a
change over option which forces the A 1730 to switch from Alert to the Evacuation tone after a prescribed time. Use DIP
switches 5-8 to adjust this time or switch off completely.
Alert message: A message can be inserted every three alert cycles. A Voice message could be something like "please
standby". To install an Alert message on the A 1730 refer to section 5.0 and place your message in the Voice/Alert folder
and delete any other MP3 file located in the folder.
Evacuation: The Evacuation tone is activated by a closing contact on the Evac trigger or by pressing the Evac button on
the front of the unit and and can be used in Alternate or Momentary setup as mentioned in section 4.1.
Evacuation message: A message can be inserted every three evacuation cycles as per the Australian Standards. Voice
message could be something like "please evacuate the building by the closest exit". To install a Evacuation message on
the A 1730 refer to section 5.0 and place your message in the Voice/Evac folder and delete any other MP3 file located in
the folder.
4.3 Priority
The Emergency tones have priority over other triggers (1 to 8) and if activated will stop any other MP3 and activate the
selected emergency tone. Evacuation also has priority over Alert.
4.4 Switched Output
The switched output terminal becomes active when any message or tone is activated. The output voltage is the same as
the power supplied to the unit. ie if the A 1730 is powered by 12V DC, the switched output voltage will be 12V DC.
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