DA-4
Digital Announcement Device DA-4
The digital announcement device DA-4 is the state-of-the-art announcement system among the Picaso-Systems announcement devices. The heart of the system is a digital signal processor, that decodes audio data, compressed according to the algorithm of the Layer III in accordance with MPEG1 standard ISO-11172-3, and so restores the original NF-signal.
Featured functions:
• 2 GB flash memory on Board
• Adjustment through front sided potentiometer and software
• Test key on the front panel
• All update functions via USB 2.0 with automatic recognition
• Multiple diagnostic functions
• IBIS interface with short-circuit safe feedback
• Two relais outputs for amplifier and monitor
• Two switched outputs for e.g. destination announcement
• 4 opto-isolated inputs for mute, gong, special messages
• LF amplifier 5 W / 4 Ω (Class D)
