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2. Modular connector - Wikipedia

   en.wikipedia.org/wiki/Modular_connector

   Only lines 1 and 2 have electrical compatibility, with T568A wiring, and only line 1 with T568B wiring, because Ethernet-compatible pin assignments split the third pair of RJ25 across two separate cable pairs, rendering that pair unusable by an analog phone. (With T568B wiring, a telephone may connect to line 3 as line 2.) Both the third and ...

3. Power over Ethernet - Wikipedia

   en.wikipedia.org/wiki/Power_over_Ethernet

   In this configuration, an Ethernet connection includes Power over Ethernet (PoE) (gray cable looping below), and a PoE splitter provides a separate data cable (gray, looping above) and power cable (black, also looping above) for a wireless access point. The splitter is the silver and black box in the middle between the wiring junction box (left ...

4. Registered jack - Wikipedia

   en.wikipedia.org/wiki/Registered_jack

   A cable with a 50-pin connector on one end can support six fully wired 8P8C connectors or Ethernet ports on a patch panel with one spare pair. Alternatively, only the necessary pairs for 10/100 Ethernet can be wired allowing twelve Ethernet ports with a single spare pair. This connector is also used with spring bail locks for SCSI-1 connections.

5. Ethernet - Wikipedia

   en.wikipedia.org/wiki/Ethernet

   Accton Etherpocket-SP parallel port Ethernet adapter (c. 1990). Supports both coaxial and twisted pair cables. Power is drawn from a PS/2 port passthrough cable. Ethernet was developed at Xerox PARC between 1973 and 1974 [4] [5] as a means to allow Alto computers to communicate with each other. [6]

6. IEC metric screw sized connectors - Wikipedia

   en.wikipedia.org/wiki/IEC_metric_screw_sized...

   Ethernet cable with an M12 X-coded connector in one end and a modular connector in the other. IEC metric screw sized connectors is a family of electrical connectors defined by IEC that are named according to their ISO metric screw thread , namely M5 , M8 and M12 . [ 1 ]

7. List of video connectors - Wikipedia

   en.wikipedia.org/wiki/List_of_video_connectors

   1 Mini-DIN 4-pin, 1 Mini-DIN 7-pin, 1 Mini-VGA, 2 BNC, 2 RCA connectors, 8-pin DIN, [4] SCART 21-pin: S-VHS, some laptop computers, analog broadcast video, 1980-1990s home computers including the Commodore 64, C128 and Atari 8-bit computers: The 4-pin mini-DIN that is most common in consumer products today debuted in JVC's 1987 S-VHS. The 7-pin ...