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  2. Data communication - Wikipedia

    en.wikipedia.org/wiki/Data_communication

    Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires , optical fibers , wireless communication using radio spectrum , storage media and computer buses .

  3. ANSI C12.22 - Wikipedia

    en.wikipedia.org/wiki/ANSI_C12.22

    ANSI C12.22 is the American National Standard for Protocol Specification for Interfacing to Data Communication Networks . ANSI C12.22/IEEE Std 1703 describe a protocol for transporting ANSI C12.19 table data over networks, for the purpose of interoperability among communications modules and meters.

  4. General Packet Radio Service - Wikipedia

    en.wikipedia.org/wiki/General_Packet_Radio_Service

    According to 3GPP TS 45.002 (Release 12), Table B.1, [18] mobile stations of this class support 5 timeslots in downlink and 3 timeslots in uplink with a maximum number of 6 simultaneously used timeslots. If data traffic is concentrated in downlink direction the network will configure the connection for 5+1 operation.

  5. RS-485 - Wikipedia

    en.wikipedia.org/wiki/RS-485

    RS-485 signals are used in a wide range of computer and automation systems. In a computer system, SCSI-2 and SCSI-3 may use this specification to implement the physical layer for data transmission between a controller and a disk drive. RS-485 is used for low-speed data communications in commercial aircraft cabins' vehicle bus. It requires ...

  6. Modbus - Wikipedia

    en.wikipedia.org/wiki/Modbus

    Modbus or MODBUS is a client/server data communications protocol in the application layer. [1] It was originally designed for use with programmable logic controllers (PLCs), [2] but has become a de facto standard communication protocol for communication between industrial electronic devices in a wide range of buses and networks. [3] [1]

  7. SDI-12 - Wikipedia

    en.wikipedia.org/wiki/SDI-12

    SDI-12 (Serial Digital Interface at 1200 baud) is an asynchronous serial communications protocol for intelligent sensors that monitor environment data. These instruments are typically low-power (12 volts), are used at remote locations, and usually communicate with a data logger or other data acquisition device.

  8. Data Distribution Service - Wikipedia

    en.wikipedia.org/wiki/Data_Distribution_Service

    The Data Distribution Service (DDS) for real-time systems is an Object Management Group (OMG) machine-to-machine (sometimes called middleware or connectivity framework) standard that aims to enable dependable, high-performance, interoperable, real-time, scalable data exchanges using a publish–subscribe pattern.

  9. Long-range optical wireless communication - Wikipedia

    en.wikipedia.org/wiki/Long-range_optical...

    Long-range optical wireless communication or free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking over long distances. "Free space" means air, outer space, vacuum, or something similar.