RJ12 Female to RJ12 Female Inline Coupler Adapter - 6P6C - Reverse Pinout

Part no. 510

6P6C | Gold-Plated Contacts | Plastic | Reversed Pinout | Extend Existing Cable


Original Price: $1.44 Sale Price: $1.00
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Quantity Discount Pricing
1 - 4 5 - 9 10 - 49 50 - 99 100+
$1.44 $1.25 $1.19 $1.13 $1.06

This inline RJ12 to RJ12 reverse pinned coupler will allow the connection of two RJ12 cables to extend an existing cable. 50 micron gold plated contacts ensure excellent connectivity.


  • RJ12 female to female
  • 6 Position, 6 Conductor
  • Gold plated contacts
  • Color: Ivory
  • Wired Reversed
  • L 1 1/2 W 5/8 H 7/8
Features & Specs
The gender of this adapter? Female to Female (Jack to Jack)
Plug Type
The type of plug on this adapter? RJ12
Form Factor The form factor of this adapter? Coupler
Plating The plating on the contacts? 50 micron gold
Color The color of this adapter? Ivory
Pinout The pinout of this adapter? Reverse
REVIEW SUMMARY for RJ12 Female to RJ12 Female Inline Coupler Adapter - 6P6C - Reverse Pinout
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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

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