Redback®
A 1717 Message Player
www.altronics.com.au
Redback® Proudly Made In Australia
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1.0 OVERVIEW
The A 1717 is an MP3 based message player housed in a compact flange mount aluminium enclosure and offers playback
of four MP3 tracks. Ideal for custom programming, tones, messages or music for use in interactive displays, security, cus-
tomer entry and emergency evacuation announcements.
When combined with a Redback A 1708/S 0080 timer it can be used to play back scheduled messaging. The included
SD card is preloaded with standard tones, including bell, bing bong, siren and pre-announcement chime, plus Australian
Standard alert and evacuation tones (complying to AS1670.4).
Playback for each track can be activated by a closing set of contacts. Contacts may be configured between alternate or
momentary action.
Trigger 4 contacts can be configured to provide a cancel playback switch.
A 24V DC switched output is activated when any message is active. The unit is supplied with a 24V DC 1amp power
supply.
2.0 INSTALLATION
Power requirements:
The A 1717 needs a minimum of 24VDC at 300mA to work correctly. Maximum working voltage is
30VDC, do not exceed 30VDC as it will cause permanent damage to the unit. The power is connected via the 2.1mm (tip
positive) DC socket on the rear of the unit or via the euro block terminals (see fig 2).
Output:
Output is via the stereo RCA connectors on the rear. Output level is nominal 500mV but is related to the recorded
level of the MP3.
Input triggers:
The input triggers are activated by closing contacts on the rear of the unit whether by a normally open
switch or a timer or controller.
Switched output:
The switched output terminal is triggered when any zone is activated. The voltage output is the same
as the power supplied to the unit. ie if the A 1717 is powered by 24V, the switched output voltage will be 24V.
3.0 PLAY MODES
Alternate:
When the A 1717 is in Alternate mode (DIP1 switch1 OFF) (see Fig 3) the closing contact must be held 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) (see Fig 3) a momentary closing contact or pulse on the trigger pins
will activate the MP3. The A 1717 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 is used. A momentary closing contact on the Cancel
trigger will stop the MP3 playing (it is recommended that the Cancel contact be held closed for up to 2 seconds to ensure
the MP3 stops playing)