Redback A 1741B Operating Manual page 7

Redback® A 1741B Message Player
NOTE the new MP3 file cannot be "Read only" to check this right click on the MP3 file and scroll down and select Proper-
ties, you will get a window that looks like figure 9. Make sure the "Read Only" box has no tick in it.
Fig 9
The new MP3 is now installed on the card and the card can be removed from the PC following windows safe card removal
procedures. Make sure the A 1741B is OFF and insert the Micro SD card into the slot in the front; it will click when fully
inserted.
The A 1741B is ready to go on Trigger1.
Repeat these steps for Trigger2 to Trigger8 if you need to.
Please note: that the ALERT and EVAC folders and the MP3 files inside these folders should not be deleted or renamed in
anyway as this will cause the A 1741B to stop responding.
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 2.0 and the Dip Switch settings. The
Alert tone comes with a change over option which forces the A 1741B 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 (see Fig 4).
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 2.0 and the Dip
Switch settings.
Evacuation message: A message (repeated twice) 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 Evacu-
ation message on the A 1740 follow the Step by step guide to put a MP3 into Trigger1 with a Windows installed PC but
replace Trigger1 with Voice i.e. put the message into the Voice folder on the SD card and delete any other MP3 file located
in the voice folder.
Priority: The Emergency tones have priority over other triggers (1 to 8) and if activated will stop any other MP3 and acti-
vate the selected emergency tone. Evacuation also has priority over Alert.
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