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RJ11 Female to RJ11 Female Inline Coupler Adapter - 6P4C - Straight Pinout

6P4C | Gold-Plated Contacts | Plastic | Straight Pinout | Extend Existing Cable
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Quantity Available: 12387

This inline RJ11 to RJ11 coupler will allow the connection of two RJ11 cables to extend an existing cable. 50 micron gold plated contacts ensure excellent connectivity.


  • RJ11 female to female
  • 6 Position, 4 Conductor
  • Gold plated contacts
  • Color: White
  • Wired Straight
  • L 1 1/2 W 5/8 H 7/8
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Q: What is the difference between an RJ11 and an RJ12 connector?

A: Both connectors are the same size and appear the same. However looking at the contacts an RJ11 will only have 4 contacts. An RJ12 will have 6 contacts.

Q: What are the terms 4P4C 6P4C and 6P6C referring to?


4P4C: 4 Position 4 Conductor ( RJ22) - used for Telephone Handset cables.

6P4C: 6 Position 4 Conductor (RJ11) - used for ADSL telephone and modem cables.

6P6C: 6 Position 6 Conductor (RJ12) - used in System phones.

Q: Which adapter or splitter should I use. Reverse or straight?

A: Newer phones can use a straight or reverse pinned line cord. If you’re unsure of the age of your phone a reverse pinned cord will work with any age phone