What Is RJ45 Connector? – POFTUT

What Is RJ45 Connector?

RJ45 is a type of cable connector which is mainly used in computer networks. RJ45 is mainly used for ethernet networking which is used to connect different type of devices like a switch, hub, PC, router, firewall to each other.RJ45 is the most known and popular connector type in the IT world.

RJ Stands For Registered Jack

Well, where the RJ comes from. RJ means Registered Jack and standardized network interface to connect voice and data equipment. There are other RJ standards like RJ11, RJ14, RJ25, etc. For example, in order to connect the phone to the copper line RJ11, standard and connector are used.

RJ45 Parts

Even RJ45 Connector is very simple connector it consists of different parts.

RJ45 Parts

RJ45 Parts

  • Copper pins which will stick with the copper lines.
  • Clip to stick RJ45 to the RJ45 port and release
  • Crimp to put the cable to the RJ45 connector.

RJ45 Cabling

RJ 45 connector consists of 8 pins where 8 copper lines are connected. RJ45 generally used for CAT5 and CAT6 cables. There are two standards used for RJ45 named  T-568A and T-568B. They are the same cables but with a different lineup.

T-568A

  1. White/Green (Receive +)
  2. Green (Receive -)
  3. White/Orange (Transmit +)
  4. Blue
  5. White/Blue
  6. Orange (Transmit -)
  7. White/Brown
  8. Brown

T-568B

  1. White/Orange (Transmit +)
  2. Orange (Transmit -)
  3. White/Green (Receive +)
  4. Blue
  5. White/Blue
  6. Green (Receive -)
  7. White/Brown
  8. Brown

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