RJ is the English abbreviation of the industrial term Registered Jack. It is an interface standard for Ethernet connectors established by EIA (Electronic Industries Association) and TIA (Telecommunications Industry Association) in the United States. TXGA develops and produces various types of connectors rj45, 16 years of mature connector processing manufacturer TXGA, sufficient inventory, the original factory direct sales, click [Product Center] to select the model to place an order. TXGA online store, to help you be one step ahead.
Most of the RJ connectors are RJ45 connectors, used for ethernet connection, 8P8C, can connect 4 pairs of twisted pairs, 12mm wide, wider than the RJ11 series. RJ45 connectors are sometimes used for telephone or RS232 connections, and some are used to transmit VGA video signals.
The universal telephone connector belongs to a kind of RJ11. At the beginning, it was the common name of a connector developed by a company in the United States. It was originally named WexW and has a 6-pin shape. WE6W uses all 6 contacts, while WE2W only uses the middle. Two pins later became one of the RJ series connectors.
There is also an 8P8C connector called RJ61, which is used to connect twisted pair pairs. Because the two wires of the 3rd and 4th twisted pairs in this line sequence are far apart, it will cause greater crosstalk, which is not suitable for the transmission of high-frequency signals such as Ethernet. There is also an RJ48 connector, also 8P8C, which can be used to connect 4 pairs of T1 data links, and each pair of lines can transmit 23 time-division multiplexed voice channels.
