EM-21D QuikWave Audio Player

• Stereo MP3, near CD quality • Trigger Input: 1 (keypad/push button) • Relay Output: 0 • Serial Port: 0 • Input Voltage: 12 ~ 30 VDC • Output Power: 15W x 2 or 55W x 1 EM-21D is a rugged industrial MP3 player designed for the most demanding jobs. Much like a CD player playing sound tracks from a CD, EM-21D plays sound files from an SD/SDHC memory card but without the moving parts to wear and tear. The player supports the ISO 11172-3 MP3 standard (up to 320 Kbps) and provides better sound quality than other MP3 players supporting 256 kbps or less. Powered by a single voltage DC power supply, EM-21D features a high efficiency low heat class D power amplifier with thermal and short circuit protection (automatic recovery). The amp can also be configured as BTL (Bridge Tied Load) for power boost in mono applications. A line level output is available for external amplification if desired. Audio playback can be triggered with a variety of methods such as keypad (3x4), push button, motion/alarm sensor and PLC. EM-21D can be easily configured to work in different operation modes such as: • Start the playback when the trigger is applied or removed. • Allow the playback to be interruptible by the next trigger or not. • Play the sound just once or loop it till the trigger is removed. • Automatically play a list of files with user configurable delay time. • Up to 10 groups of separate audio files and system configuration. Housed in a compact yet rugged metal case, EM-21D can be easily secured into place with the integrated mounting tabs on each side of the unit. Wiring is done via screw terminals and requires only a small screw driver. The screw terminals are unpluggable, making it fool-proof to replace the unit in the field when necessary.