Field interfaces for fiber optic Emergency Telephone network. Each interface assumes signal regeneration for the next interface and digital to analog signal conversion for the local speaker(s) and microphone(s).
In case of fiber optic failure the interfaces automatically manage network fixing.
The interfaces feature excellent power management allowing solar panel/battery power supply with very high autonomy in areas where sun is weak.
Numerous alarms signals provided by the network management layer ease field system troubleshot/maintenance.
Contact closure, serial signal, simultaneous communications and picture transmission are also supported by the system.