2 Interfaces
2.1 Master Panel
2.1.1 VDR
● Analog audio output to Voyage Data Recorder.
● Signal is outputting 0dB by default.
● Signal can be adjusted by potentiometer P1 from 0dB to mute.
2.1.2 Typhoon/foghorn mute
Potential-free input makes the system’s horn detection inactive while the
vessel’s own horn is active.
2.1.3 Public Address mute
There is a potential-free input for muting the VSS microphones when the
Public Address system is active.
2.1.4 Relay status
There is one NC output for system status and one NO output for each
panel direction LED activity. Continuous load current is 170mA.
2.1.5 Web interface
There is an Ethernet connection to access the web interface. Default IP
settings are:
• IP: 169.254.1.10
• Subnet: 255.255.0.0
• User: vssadmin
• Pass: vssadmin
2.2 Slave Panel / Master Communication
6-wire interface to slave panel consists of power lines, balanced audio
signal and RS485 communication lines.
2.3 Microphone Unit
10-wire interface to microphone consists of power lines and 2-wire set
for each microphone. Microphone lines have balanced audio signal and
its own keep-alive signal.
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