Ethernet Couplers

RJ (registered jack) adapters are devices used to convert registered jack connections from one type to another. RJ25 connectors are a standardised connection used in telecommunications applications.

What are RJ adapters used for?

RJ adapters can cover a range of purposes, depending on what type of adapter they are.

  • Couplers join two different connectors together, using two input ports
  • Extensions increase the range of transmission by adding to the length of cable
  • Adapters proper allow different connections to be joined, such as an M12 cable joining to an RJ45 connection

Types of RJ adapters

RJ adapters mainly differ in how many ports they have. They may have between one and six ports, allowing them to connect up to six cables. They can also differ in their wiring configuration, and indeed there are many different types of adapters, from feedthrough connectors to junction boxes to couplers, depending on what you need to convert between. They can be shielded or unshielded.


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Description Price Type Interface Type LAN Category Number of Ports Shield Type Wiring Configuration Length Width Depth Diameter Extension Length Series Series Number Voltage Rating
RS Stock No. 2508613941
Mfr. Part No.ECF504-C6
BrandL-Com
HK$124.99
Each
units
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RS Stock No. 2508613935
Mfr. Part No.ECF504-C5
BrandL-Com
HK$103.74
Each
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RS Stock No. 2509556751
Mfr. Part No.40-9586F
HK$25.54
Each
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RS Stock No. 2509556767
Mfr. Part No.40-9588F
HK$28.84
Each
units
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RS Stock No. 2508614001
Mfr. Part No.TDG1026KC6
BrandL-Com
HK$85.54
Each
units
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RS Stock No. 2508614039
Mfr. Part No.TDG1026KS-C6
BrandL-Com
HK$118.30
Each
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RS Stock No. 2508613064
Mfr. Part No.ECF504-5M
BrandL-Com
HK$189.28
Each
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RS Stock No. 2508613985
Mfr. Part No.TDG1026KC3
BrandL-Com
HK$32.76
Each
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RS Stock No. 2509555720
Mfr. Part No.40-9528M
HK$41.44
Each
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RS Stock No. 2508609065
Mfr. Part No.ECF504-8SK
BrandL-Com
HK$82.18
Each
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RS Stock No. 2508614017
Mfr. Part No.TDG1026KS-8P
BrandL-Com
HK$69.44
Each
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RS Stock No. 2508613991
Mfr. Part No.TDG1026KC5
BrandL-Com
HK$71.68
Each
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RS Stock No. 2508614023
Mfr. Part No.TDG1026KS-C5E
BrandL-Com
HK$103.29
Each
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RS Stock No. 2509027391
Mfr. Part No.UJ5T568
BrandL-Com
HK$138.60
Each
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RS Stock No. 2508609380
Mfr. Part No.UJ5T568S
BrandL-Com
HK$173.32
Each
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