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X10 is a protocol for communication among electronic devices used for home automation ( domotics ). It primarily uses power line wiring for signaling and control, where the signals involve brief radio frequency bursts representing digital information. A wireless radio -based protocol transport is also defined.
A remote radio head (RRH), also called a remote radio unit (RRU) in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface. When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head .
RF module. An RF module (short for radio-frequency module) is a (usually) small electronic device used to transmit and/or receive radio signals between two devices. In an embedded system it is often desirable to communicate with another device wirelessly. This wireless communication may be accomplished through optical communication or through ...
An electronic control unit ( ECU ), also known as an electronic control module ( ECM ), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle . Modern vehicles have many ECUs, and these can include some or all of the following: engine control module (ECM ...
10-22 Off Radio Unit is not capable of being contacted by radio, but may be "available." 10-7B On Radio Unit is capable of being contacted by radio, but not necessarily "available." 10-11 Responding Unit is en route to assigned location. 10-17 Under Control Situation is under control when no further assistance is anticipated. - -
The advent of 2.4 GHz band FHSS radio-control systems in the early 21st century changed this further. Pulse-position modulation is also used for communication with the ISO/IEC 15693 contactless smart card, as well as in the HF implementation of the Electronic Product Code (EPC) Class 1 protocol for RFID tags. See also. Pulse-amplitude modulation
Baseband processor SiTel SC14434. A baseband processor (also known as baseband radio processor, BP, or BBP) is a device (a chip or part of a chip) in a network interface controller that manages all the radio functions (all functions that require an antenna); however, this term is generally not used in reference to Wi-Fi and Bluetooth radios.
Rolling code. A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'. Such systems are typical in garage door openers and keyless car entry systems.