DM58 Preamplified Digital Microphone
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Catalog excerpts

Preamplified Digital Microphone The L3 DM58 preamplified digital microphone provides an ED-112A-compliant integrated Cockpit Area Microphone (CAM) and preamplifier functionality. The microphone output may be either analog for current generation Cockpit Voice Recorders (CVRs) or digital for next generation recorders. The inclusion of an ED-112A compliant preamplifier benefits customers by reducing system part count, size, and weight. The integrated microphone and preamplifier also supports modern glass cockpits where a traditional CVR control unit / preamplifier is not desired. TSO approval simplifies certification for aircraft manufacturers, installers and end users. FEATURES • Integrated CAM and preamplifier for CVR • ED-112A CAM –– Compliant with latest ED-112A specifications Use of U.S. DoD visual information does not imply or constitute DoD endorsement. –– MEMS technology –– Improved vibration immunity for helicopter and turboprop installations –– Improved cell phone / GSM signal immunity • ED-112A Preamplifier –– Compliant with latest ED-112A specifications –– Analog and digital output options –– Digital Signal Processing (DSP) for precise performance • Compact size • Analog or ARINC-429 digital output • Mounting compatible with legacy CAM models • Simplified installation and wiring • CVR power or ship power

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Digital MicrophoneSPECIFICATIONS PRODUCT CERTIFICATION FAA TSO-C123c REGULATORY SPECS EUROCAE MOPS ED-112A, RTCA DO-160G, RTCA DO-254, RTCA DO-178B Level D POWER Requirements CVR powered or 28 VDC (option) COMPANY CERTIFICATION Consumption < 1 W L3 Aviation Recorders Quality Management System - is ISO 9001:2008 and AS9100:2009 Rev. C Certified COMPATIBILITY FA2100, FA2200, FA2300, FA5000, SRVIVR and APR2500 INTERFACE Aircraft/Recorder Interface Four-wire shielded cable pigtail Compatability Compatible with legacy three-wire installations CONTROLS Attenuation, 0 and 6 dB (accessible during...

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