Computer Network Topic 2: IEEE 802 & RS232/RS422

IEEE 802 (Institute of electrical & electronic engineers 802) - comprises a family of networking standards that cover the physical layer specifications of technologies from Ethernet to wireless.

Working Groups:

Name	Description	Note
IEEE 802.1	Higher Layer LAN Protocols (Bridging)	active
IEEE 802.2	LLC	disbanded
IEEE 802.3	Ethernet	active
IEEE 802.4	Token bus	disbanded
IEEE 802.5	Token ring MAC layer	disbanded
IEEE 802.6	MANs (DQDB)	disbanded
IEEE 802.7	Broadband LAN using Coaxial Cable	disbanded
IEEE 802.8	Fiber Optic TAG	disbanded
IEEE 802.9	Integrated Services LAN (ISLAN or isoEthernet)	disbanded
IEEE 802.10	Interoperable LAN Security	disbanded
IEEE 802.11	Wireless LAN (WLAN) & Mesh (Wi-Fi certification)	active
IEEE 260	Standard Letter	active
IEEE 488	Standard Digital Interface	active
IEEE 260	Standard of Glossary of Software	active
IEEE 260	Standard of Glossary of Software	active
IEEE 802.12	100BaseVG	disbanded
IEEE 802.13	Unused[2]	Reserved for Fast Ethernet development[3]
IEEE 802.14	Cable modems	disbanded
IEEE 802.15	Wireless PAN	active
IEEE 802.15.1	Bluetooth certification	active
IEEE 802.15.2	IEEE 802.15 and IEEE 802.11 coexistence
IEEE 802.15.3	High-Rate wireless PAN (e.g., UWB, etc.)
IEEE 802.15.4	Low-Rate wireless PAN (e.g., ZigBee, WirelessHART, MiWi, etc.)
IEEE 802.15.5	Mesh networking for WPAN
IEEE 802.15.6	Body area network
IEEE 802.15.7	Visible light communications
IEEE 802.16	Broadband Wireless Access (WiMAX certification)
IEEE 802.16.1	Local Multipoint Distribution Service
IEEE 802.16.2	Coexistence wireless access
IEEE 802.17	Resilient packet ring	hibernating
IEEE 802.18	Radio Regulatory TAG
IEEE 802.19	Coexistence TAG
IEEE 802.20	Mobile Broadband Wireless Access	hibernating
IEEE 802.21	Media Independent Handoff
IEEE 802.22	Wireless Regional Area Network
IEEE 802.23	Emergency Services Working Group
IEEE 802.24	Smart Grid TAG	New (November, 2012)
IEEE 802.25	Omni-Range Area Network

RS232 is a standard for serial communication transmission of data.RS-232 devices are still used, especially in industrial machines, networking equipment, and scientific instruments.

RS422 (EIA RS-422-A Standard) is the serial connection historically used on Apple Macintosh computers.



Reference

En.wikipedia.org. (2017). IEEE 802. [online] Available at: https://en.wikipedia.org/wiki/IEEE_802 [Accessed 12 Apr. 2017].

En.wikipedia.org. (2017). RS-232. [online] Available at: https://en.wikipedia.org/wiki/RS-232 [Accessed 12 Apr. 2017].

Ni.com. (2017). RS-232, RS-422, RS-485 Serial Communication General Concepts - National Instruments. [online] Available at: http://www.ni.com/white-paper/11390/en/ [Accessed 12 Apr. 2017].