Digital Message Announcer - Polar Audio
Digital Message Announcer - Polar Audio
Digital Message Announcer - Polar Audio
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DMA1<br />
<strong>Digital</strong> <strong>Message</strong> <strong>Announcer</strong><br />
At a Glance<br />
> Plays MP3 fi les<br />
> Standard SD card digital message storage<br />
> On board Play, FF, Rew & Stop controls<br />
(with remote capability)<br />
> Contact closure fi le replay triggers<br />
A More Thorough Examination...<br />
The Australian Monitor Installation Series DMA1 digital message<br />
announcer is a compact yet highly featured digital playback device.<br />
Utilizing an SD card digital storage format the DMA1 delivers high<br />
quality stereo audio in an MP3 format. <strong>Message</strong>s can be played or<br />
triggered using the on-board controls, via remote switches, contact<br />
closure or via RS485 serial control. The DMA1 also boasts an on<br />
board 20 watt per channel D class power amplifier as well as stereo<br />
inputs & outputs which allow it to be inserted in line with another<br />
BGM feed.<br />
> RS485 control<br />
> Capacity up to 255 messages<br />
> Stereo In/Out<br />
> Onboard 20 watt per channel D class<br />
power amp<br />
130 minutes of music ( at 128kbps sample rate ) can be stored in<br />
the supplied 128MB memory card. The DMA1 supports memory<br />
cards up to 1GB and variable bit rate music files.<br />
The DMA1’s compact size belies the wealth of features it offers.<br />
It is a highly innovative & cost effective digital message<br />
storage & playback device that has a host<br />
of commercial applications.
Architecture & Engineering Specifi cations<br />
The <strong>Digital</strong> message announcer shall be of compact size & replay MP3 message fi les via SD card storage. The unit shall<br />
provide stereo playback with stereo in & out facility. <strong>Message</strong>s shall be replayed via on board controls (with remote<br />
capability), via contact closure or via RS485 serial control. The unit shall have capacity for storage of up to 255 high<br />
quality MP3 fi les & shall also have an onboard 20 watt per channel stereo power amplifi er.<br />
The Unit shall be an Australian Monitor DMA1.<br />
Power supply<br />
12-15VAC or 12-24VDC<br />
Consumption in Standby 1 W<br />
Protection<br />
internal fuse, 4A delayed<br />
Capacity of extractable memory SD/MMC from 32MB to 1GB<br />
Input absorption<br />
5 mA<br />
Formats accepted<br />
MPEG1 layer 3 (fi le MP3 from 64 to 160 Kbps)<br />
Frequency Response<br />
20 ~ 20.000 Hz (±3dB)<br />
Signal/noise ratio<br />
> 90dB<br />
Harmonic distortion < 0.1%<br />
Output power 20+20W ( 24V / 4 Ω ) THD= 0.04%<br />
<strong>Audio</strong> controls<br />
Control keys<br />
Classification<br />
Size<br />
Shipping Dimensions<br />
Weight<br />
- General output volume control<br />
- Control of input volume and background<br />
level with mixer function<br />
- Separate bass and treble tone controls<br />
- Loudness level control<br />
- Automatic fade in<br />
- Automatic fade out<br />
4 buttons REW, PLAY, STOP, FWD and<br />
menu functions<br />
IP30 on the basis of liquid and dust penetration<br />
102 (W) x 74 (D) x 19 (H) mm<br />
360 (W) x 240 (D) x 80 (H) mm<br />
1.5kg<br />
Engineered and Distributed by AUDIO TELEX COMMUNICATIONS PTY LTD (ABN 78 001 345 482), 149 Beaconsfield Street, Silverwater, Sydney, NSW, 2128 Australia<br />
NSW Tel: (02) 9647 1411 Fax: (02) 9648 3698 VIC Tel: (03) 9890 7477 Fax: (03) 9890 7977 QLD Tel: (07) 3852 1312 Fax: (07) 3252 1237 WA Tel: (08) 9228 4222 Fax: (08) 9228 4233<br />
SA Tel: (08) 8352 4444 Fax: (08) 8352 4488 NZ Tel: (09) 415 9426 Fax: (09) 415 9864 International Enquiries - international@audiotelex.com.au www.australianmonitor.com.au
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