RJ-45
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The RJ-45 was first developed, at Bell Labs, for use in the telephone network, to provide both a mechanical and electrical connection, when connecting a set of wires to a device.[1][2][3] The "RJ" part of the name is short for "registered jack".
The RJ-45, has a distinctive look, and was designed to provide a highly recognizable tactile feel that confirmed, to the user, when the mechanical and electrical connection had been made.
On one face of the connector gold-plated connectors slid over matching connectors on the receptacle built to receive the RJ-45. On the opposite face of the connector was a plastic lever. The plastic case of the connector, of which this lever is a part, is manufactured with just enough elasticity that the lever will bend, as
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the open end of an RJ-45 receptacle -
technicians use crimping tools when attaching an RJ-45 to a set of wires. It is a multi-step process. -
technicians use crimping tools when attaching an RJ-45 to a set of wires. It is a multi-step process. -
technicians use crimping tools when attaching an RJ-45 to a set of wires. It is a multi-step process. -
note a rubber bumper protects the lever from being broken off -
multiple RJ-45 connectors plug into this router, connecting multiple computers on an intranet
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See also
[edit | edit source]References
[edit | edit source]- ↑
"History of the RJ45: A Case of Mistaken Identity". Fluke Networks. 2020-01-02. Retrieved 2026-02-02.
The “RJ” in RJ45 stands for Registered Jack, a standard designation that originated with the Universal Service Ordering Code (USOC) scheme of the Bell System back in the 1970s for telephone interfaces.
- ↑ Alfred Contarino (2024-06-24). "RJ45 Connectivity: The Fascinating History Behind the RJ45 Connector". Talkitt Connectivity. Retrieved 2026-02-02.
- ↑ Chris Nguyen (2024-06-02). "The History of RJ45". WinC Services. Retrieved 2026-02-02.