RJ-45

  

Copyright © Philip M. Parker, INSEAD. Terms of Use.

RJ-45

Specialty Definition: RJ-45

DomainDefinition

Computing

RJ-45 A serial connector which looks very much like a standard telephone connector, except it houses eight wires instead of four. RJ-45s are not typically found on computers or normal serial equipment, but because they are so small they are often used on devices such as terminal servers that have many ports. Ethernet (10baseT) and Token Ring sometimes use four wires of an RJ-45 plug, 100baseVG uses all eight. 100BaseTX uses the same four wires of the RJ-45 connector as 10baseT but the wire must be category 5 instead of category 3. (1998-06-30). Source: The Free On-line Dictionary of Computing.

Source: compiled by the editor from various references; see credits.

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Specialty Definition: RJ45

(From Wikipedia, the free Encyclopedia)

RJ45 is a physical interface often used for terminating twisted pair type cables. 'RJ' stands for Registered Jack which is part of the US 'Code of Federal Regulations'. It has eight 'pins' or electrical connections.

It is usually used with standards like TIA-568B which define the wiring pinout.

A very common application is its use in Ethernet patch cables where usually 4 pins (2 pairs) are used. Other applications included termination of business telephones and other networking services such as ISDN and T1ss.

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "RJ45."

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Crosswords: RJ-45

Specialty definitions using "RJ-45": Data Jackpig-tailRJ45V.35. (references)

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Commercial Usage: RJ-45

DomainTitle

High Tech

Source: compiled by the editor from various references; see credits.

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Digital Photo Gallery: RJ-45
 

"RJ-45 Crimping tool" by Albert Gouws
Commentary: "I had a little too much time on my hands, but here it is , came out pretty nice, unedited."

Source: photographs selected by the editor, with permission from the photographers.

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Usage Frequency: RJ-45

"RJ-45" is generally used as an adjective (general or positive) -- approximately 100.00% of the time. "RJ-45" is used about 3 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted)
Parts of SpeechPercentUsage per
100 Million Words
Rank in English
Adjective (general or positive)100%3202,518

Source: compiled by the editor from several corpora; see credits.

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Alternative Orthography: RJ-45


Hexadecimal (or equivalents, 770AD-1900s) (references)

52 4A 2D 34 35

Leonardo da Vinci (1452-1519; backwards) (references)

Binary Code (1918-1938, probably earlier) (references)

01010010 01001010 00101101 00110100 00110101

HTML Code (1990) (references)

R J - 4 5

ISO 10646 (1991-1993) (references)

0052 004A 002D 0034 0035

Encryption (beginner's substitution cypher): (references)

5244152223

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INDEX

1. Crosswords
2. Usage: Commercial
3. Images: Digital Art
4. Usage Frequency
5. Orthography
6. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.