1.6.9.4 Control Buses and I/O Interfaces
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Local Bus interface for paging units and control devices. Used also as a redundant bus for System Bus
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System Bus interface for paging and control devices
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System Bus link out to next Digital Amplifier unit
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USB-B connector for PC interface
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USB-A connector external memory or RS232/485 adapters
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8 programmable control inputs
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8 programmable control outputs
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Control output to transfer unit
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RS-232 Serial port for service
1.6.9.5 Time Based Functions
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Internal clock and calendar
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25 Years automatic summer/winter time setting
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Up to 125 time based events
1.6.9.6 Log Functions
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System Events Log
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System Error Log
1.6.9.7 System Functions
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System is expandable by connecting up to 64 Digital Amplifier units together via System or Local Bus
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Each Digital Amplifier has unique selectable address
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Up to 512 speaker lines, paging zones and audio program groups for background music
1.6.9.8 System Monitoring
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Equipment and system monitoring according to the EN54-16
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Automatic master change over function in case of master fault
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Automatic spare amplifier change
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Power supply voltages
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Temperature monitoring
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Fan motor monitoring
24 | AlphaAnnounce Digital Amplifier
