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.
Wi-Fi communication equipment, WirelessFidelity, wireless fidelity: short distance wireless technology used in offices and homes. The technology uses frequency bands near 2.4GHz, which are currently not licensed wireless bands. Currently, there are two standards available, namely IEEE802.11a and IEEE802.11b. The so-called WiFi communication equipment should refer to the communication equipment that supports this technology.
What is used now is basically routing, connecting machines, amplifying signals, switches, and so on. But they can't connect to the machine. But there are large switches.English abbreviation ICD, full name Industrial, Communication, Device. Wire communication equipment is mainly industrial serial communication, professional bus type communication, industrial Ethernet communication and various communication protocol conversion equipment. Wireless communication equipment is mainly wireless AP, wireless bridge, wireless network card, wireless lightning arrester, antenna and other equipment.
