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  • 21/08/2020
    Tunnel emergency telephone extension structure, extension working environment

    I. Extension structure The height of the microphone and receiver from the ground is 145±10cm. Emergency telephone has weather-proof facilities. Tunnel emergency telephone extension adopts metal box with steel plate thickness of more than 1.5mm, and adopts hot zinc spraying technology for antirust treatment, with zinc spraying thickness of 0.04 ~ 0.06 mm. After putty… Continue reading Tunnel emergency telephone extension structure, extension working environment

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  • 21/08/2020
    Functions of Satellite Road Tunnel Emergency Telephone Broadcasting System

    Expand the broadcast function to control the broadcast of the tunnel without adding optical fiber (share an optical fiber with emergency phone), including single call, slice call, full call and volume adjustment functions. At least two sound sources can be played simultaneously. Can be displayed in linkage with the monitoring screen of the monitoring sub-center… Continue reading Functions of Satellite Road Tunnel Emergency Telephone Broadcasting System

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  • 28/06/2020
    Main Functions of Roadside Extension/Tunnel Extension

    Emergency phone users can directly communicate with the operator of the emergency phone console, and push-to-talk (easy to operate). After the user presses the extension button, the sub-unit can automatically send a call to the console host of the monitoring center, and transmit basic information such as the local kilometer mark, up-down direction, etc. Each… Continue reading Main Functions of Roadside Extension/Tunnel Extension

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  • 20/06/2020
    Technical Indicators of Emergency Telephone Console (2)

    16. The on-screen map displays the map sketch according to the scale, and the important sections should have local enlargement function. 17. Emergency telephone collision, damage, open the door, etc., the center can immediately display sound and light alarm signal. When a traffic accident user’s extension calls for an alarm and when the extension is… Continue reading Technical Indicators of Emergency Telephone Console (2)

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