2015, Marilyn Systems, llc.
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Device Overview
The DAR-01 is a solid-state device that plays MP3 and WAV audio files. It can directly drive
loudspeakers with a powerful, built-in amplifier, or, it can be interfaced to an external audio
system using the line-level outputs.
Up to 500 audio tracks are stored on an SD or SDHC flash memory card and called up using
the eight optically-isolated inputs, the serial port, or internally. A simple, plain-English
configuration file allows the user the flexibility to modify all operating parameters to suit their
needs. Being a standard text file, the user needs only a text editor on the platform of their
choice to quickly make configuration changes - no specialized software is required. A
convenient user interface consisting of various status LEDs, a test button, and a volume control
potentiometer are present on the front of the unit. A solid-state relay output provides devices
status.
Out of the box, the DAR-01 can be surface or edge mounted. An optional DIN-rail mount kit is
available for standardized integration into industrial panels. A card-guard kit is also available to
prevent card removal.
Updating the firmware on the DAR-01 is a snap and ensures that you always have the newest
features. The latest firmware is always available on our website at www.marilynsystems.com.
The Revision D DAR-01 is differentiated from its predecessors by:
• A more powerful, 80-Watt amplifier
• An RS-232 serial interface replaces the RS-485 port found on previous models. This
version had a single RJ-45 jack as opposed to two.
• The volume control now has a knob rather than being recessed
• Unique silkscreen graphics.
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