Referring to a series of jacks, described in the U.S. Code of Federal Regulations, Title 47, part 68, providing a standardized physical and electrical interface to the public switched telephone network (PSTN). See also jack, Part 68, and PSTN.
"RJ." YourDictionary, n.d. Web. 15 April 2019. <https://www.yourdictionary.com/RJ>.
RJ. (n.d.). Retrieved April 15th, 2019, from https://www.yourdictionary.com/RJ
(Registered Jack) See RJ-11 and RJ-45.
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