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Operating Manual
A 1745
Music On Hold Player
The A 1745 connects to your telephone hold music input to provide intervalled messages and background music for your
customers on hold. The included SD card can be loaded with your choice of background music and custom hold messages
or promotions. The message intervals can be adjusted between 30 seconds and 7.5 minutes or set “OFF”
1.0 Installation
Power requirements:
The A 1745 needs a minimum of 12VDC at 300mA to work correctly. Maximum working voltage is
30VDC, do not exceed 30VDC as it will cause permanent damage to the unit. A good working voltage is between 12 and
24VDC. The power is connected via the 2.1mm (tip positive) DC socket on the rear of the unit.
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.
2.0 Music and Message Playback
The A 1745 plays back music and messages which have been copied onto the supplied SD card. There are two folders on
the card, “Music” for storing the background music files and “Message” for storing the message files. (NOTE: All audio
files must be in MP3 format, other formats such as WAV, AAC, OGG, or FLAC will not work).
Once the unit is powered up it will automatically start playing files from the “Music” folder. If the message interval has
been set “ON” (see DIP switch settings), a message will be played from the “Message” folder after the set time.
Once the message finishes playing, the unit will not return to the music track being played before the interruption, but will
instead play another random music file.
User manual revision number 1.1 17-03-2016