2009 23rd Sep

RJD2? Okay that is not a registered jack, but how would you know with the lack in descriptions.  Though who has the time to sit down and read millions of documents just to understand the facts.  Well don’t sweat it, we have done the research for you and put together just the simple facts on knowing the differences between RJ11, RJ14, RJ25, and RJ45.

RJ11

  • - 4 wires using a 4 contact for connection
  • - 22 to 24 AWG
  • - Mostly used in analog (telephone) wiring
  • - Able to deliver 1 telephone line

RJ14

  • - 4 wires using a 4 contact for connection
  • - Able to deliver 2 telephone lines

RJ25

  • - 6 wires using a 6 contact for connection
  • - Able to deliver 3 telephone lines

RJ45

  • - 8 wires using a 8 contact for connection
  • - 24 to 26 AWG
  • - Used in telephone wiring (ISDN and T1)
  • - Also used in LAN connections (10baseT and 100BaseT)
  • - Supports Cat5 & Cat6 connectors
  • - Able to deliver 4 telephone lines

We hope by letting you know the simple differences between registered jacks we have cleared the confusion.  If you have any questions or ideas on articles just drop us a line.

Leave a Reply