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Main Functions of Roadside Extension/Tunnel Extension
2020-06-28Emergency phone users can directly communicate with the operator of the emergency phone console, and push-to-talk (easy to operate).
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After the user presses the extension button, the sub-unit can automatically send a call to the consol... -
Technical Indicators of Emergency Telephone Console (2)
2020-06-2016. The on-screen map displays the map sketch according to the scale, and the important sections should have local enlargement function.
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17. Emergency telephone collision, damage, open the door, etc., the center can immediately di... -
Functions of Satellite Road Tunnel Emergency Telephone Broadcasting System
2020-08-21Expand 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 so...
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Tunnel emergency telephone extension structure, extension working environment
2020-08-21I. Extension structureThe height of the microphone and receiver from the ground is 145±10cm.
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Emergency telephone has weather-proof facilities.
Tunnel emergency telephone extension adopts metal box with steel plate thickness of mor... -
1. Scheme introduction of IP telephone emergency broadcast system in tunnel pipe gallery.
2021-01-061. Product function1)Dispatching operation: call, no call, forced insertion, forced disassembly, proxy connection, monitoring, multicast, broadcasting, conference, night service, IP linkage telephone
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2)Monitoring function: user sta... -
Analog hybrid voice gateway.
2021-01-06The analog voice gateway mainly coordinates the IP
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broadcast telephone in the pipe rack with the extension telephone of the program-controlled exchange, including the relay function for the incoming and outgoing calls of the externa... -
How to choose a telephone?
2021-01-06First, the choice of telephone should be suitable for the layout of the family, some of the decoration is simple, or the furniture in the home is solid wood furniture, so when you choose the telephone, you can choose the palace style ...
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Function, operation and main technical parameters of emergency telephone
2021-01-061. Function description1) Wall mounted installation, beautiful appearance, magnetic door cover design;
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2) SMC forged shell, strong corrosion resistance, waterproof and dustproof grade up to IP66;
3) It supports sip2.0 protocol and can registe... -
Installation error of explosion proof electrical equipment (1)
2021-01-06Explosion proof electrical equipment is widely used in coal, petroleum, chemical, pharmaceutical, textile, machinery manufacturing and other industries where explosive gas, steam, combustible dust or fiber and other dangerous substances ma...
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