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FAQ

What does fire control communication equipment include?

Fire services include fire engines, fire engines, fire stations and radio stations

What products does communication include? Does the computer belong to communication products?

If the computer increases the communication module, but the realization of voice and timely communication should be done, but now the combination of computer and communication is becoming more and more close, it can be said that the information system ~!

What is the installation of communication equipment?

The wire communication equipment mainly introduces the serial communication of the industrial field, the communication of the professional bus type, the communication of the industrial Ethernet and the conversion equipment among the various communication protocols. Wireless communication equipment is mainly wireless AP, wireless bridge, wireless network card, wireless lightning arrester, antenna and other equipment.

What are the business scope of communication equipment?

In the classification of the national economy, communications equipment includes communications, transmission equipment and switching equipment, communications terminals (telephones, mobile phones, pagers, fax machines), fiber optics, communications materials and so on.

What is a mobile communication device?

The theory of electromagnetic wave was founded by Maxwell, who invented the telegraph communication equipment according to the electromagnetic wave. It is the Italian Marconi, and Baer is the person who invented the telephoneWireless communication is the use of radio waves instead of cable to realize the communication between devices, this communication mode has quick and easy installation and maintenance, is not affected by the topography of the site environment, cost advantages, rich products can meet the different needs of the communication distance and speed on the user.

What are the commonly used network communication devices?

To improve the utilization ratio of communication channel. The interrupt: also known as transponders, extend the transmission distance of the media, such as ethernet repeater can be used to connect different Ethernet segments, to form an Ethernet hub.: short, hub, can be viewed as a multi port repeater (repeater is a dual port) more than a few the device is network equipment working in the physical layer. The bridge: the two LANs to a logical LAN.

What is communication terminal equipment?

A system that is connected to a computer via communication facilities, known as an online system, is a device with many scattered terminals. When a small amount of information is required to be input and output to a computer, or the computer information library needs to be searched and used, a keyboard display terminal device with flexible operation is often used.

What does the communication terminal consist of?

Its basic concept is:When work, namely "simplex" refers to the end of the letter, the transmitter is called the "base" equipment.When duplex works, a terminal device that performs the task of receiving a message, such as a cell phone, is called a base station device for completing the duplex task.In addition: for example, walkie talkie, it does not require "base station equipment", both sides of the communication are communication terminal equipment.