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

RJ45

Specialty Definition: RJ45

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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Commercial Usage: RJ45

DomainTitle

High Tech

  • Standalone 8port 10/100 RJ45 1-fixed 100MBps MMf Port Mgmt Agent (reference)

  • Inetcam Inetcam A-110 Adapter For Analog Cam To Std Vid - RJ45 To Rca (reference)

  • Micro Els Micro Annex & Ra2000 RJ45 Cable Male 10ft Unshielded (reference)

  • Nortel Networks Micro Xl Micro Annex & Ra2000 RJ45 Cable Male 10FT Shielded (reference)

  • RJ45 B.o.b. Aries 8port 115.2 Kbps Async (reference)

    (more camera examples; more video game examples; more computer examples; more electronic examples; more software examples)

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

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Frequency of Internet Keywords: RJ45

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day
ExpressionFrequency
per Day

rj45

274

rj45 crossover

9

rj45 connector

102

rj45 pin

9

rj45 cable

45

rj45 wall plate

9

rj45 pinout

34

rj45 jacks

9

rj45 wiring

33

rj45 crossover cable

8

conector rj45

21

rj45 diagram

8

rj45 db25

20

rj45 crimp

8

db9 to rj45

18

rj45 serial

8

rj45 connection

16

rj45 cables

7

rj45 plug

15

rj45 rs232

7

rj45 modular connector

13

rj45 coupler

7

crimp tool rj45

13

5e 8p8c catgeory rj45 rj45

7

rj45 wiring diagram

12

rj45 modular plug

7

rj45 jack

11

rj45 ethernet

7

usb and rj45

11

cat5 rj45

6

rj45 splitter

11

rj45 adapter

6

rj11 rj45

11

rj45 db9 adapter

6

rj45 tester

11

rj11 rj45 adapter

6

rj45 crimper

10

rj45 cable tester

6

rj45 color code

10

female rj45

5
Source: compiled by the editor from various references; see credits.

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Alternative Orthography: RJ45


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

52 4A 34 35

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

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

01010010 01001010 00110100 00110101

HTML Code (1990) (references)

&#82 &#74 &#52 &#53

ISO 10646 (1991-1993) (references)

0052 004A 0034 0035

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

52442223

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INDEX

1. Usage: Commercial
2. Expressions: Internet
3. Orthography
4. Bibliography


  

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