Modular Plugs  
1 2 3 4 5 6

Flat Stranded FC409FD
Flat Stranded PIFD-4P4C
MP-6P4C-FD03U
MP-6P4C-RS03U
MP-6P6C-FD03U
MP-6P6C-RS03U
7 8 9 10 11 12

EZ RJ12 # 3001 series
C5 Solid - PIRS
EZ C5e # 3002 series
Shielded for C5e Solid
EZ C5e Shielded #3004
RJ45 Shielded for C6
13 14 15 16 17 18

C6 Solid - # 301191
C6 Solid - # 01C6RD
EZ C6 # 3003 series
Shielded C6 Solid #2155
RJ48 BL-310 Series		  
19 20 21 22 23 24
       
Note(s):
  • Link(s):
  • The 4P4C connector is not a registered jack and is incorrectly called RJ22, RJ10, or RJ9. It is also commonly referred to as a handset connector.
  • The 6P2C, 6P4C, and 6P6C modular connectors are known for their use as RJ11, RJ12, RJ14, and RJ25.
    RJ11 is 6P2C usually for 1 line.
    RJ12 is 6P6C usually for 1 line ahead of the key system in some large companies for different configurations.
    RJ14 is 6P4C usually for two lines.
    RJ25 is 6P6C usually for three lines.

  • The 8P8C connector is usually for data.
    RJ45 is Informal designed for T568A/T568B including Ethernet.

  • The 10P10C connector is commonly referred to as an RJ50 and was not a registered jack in the Universal Service Order Codes.

  • The 10P10C connector is commonly referred to as an RJ50 and was not a registered jack in the Universal Service Order Codes.
    RJ50 is commonly used in proprietary data transfer such as Digiboard, Equinox Super Serial multi-port TIA-232, also used to implement RS-485 and for data link in APC and Eaton UPS (Uninterruptible Power Supply)