RJ11 RJ12 RJ22
RJ11 RJ12 RJ22 plugs are standardized modular communication plug types, sometimes called Registered Jacks, used primarily for telephone, handset, and telecommunication systems.
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RJ11, RJ12 and RJ22 plugs are the small modular connectors used on telephone lines, handset cords and other legacy telecom cabling, distinct from the larger RJ45 plugs used for network cabling. Installers use them to terminate telephone extensions and repair or replace handset leads on site.
Choosing the right plug
- 4 way plugs suit basic two pair telephone connections such as a single line handset cord.
- 6 way plugs carry more contacts for multi-line phones or handset cords needing extra pairs.
- The SpeedyRJ45 range includes matching 6P4C and 6P6C plug variants for telephone style cabling.
For network patch leads and outlets instead, see Cat5e RJ45 Plugs, Cat6 RJ45 Plugs or RJ45 Boots. Browse the full range under Modular Plugs and Boots.
RJ11 RJ12 RJ22 FAQs
What is the difference between RJ11, RJ12 and RJ22?
These plug types share the same small modular body but differ in pin count and typical use, covering telephone lines and handset cords. Check the number of ways, 4 or 6, needed for your cabling before ordering.
Can I use an RJ11 plug on a network cable?
No, RJ11, RJ12 and RJ22 plugs are sized for telephone and handset cabling, not network cabling. For network patching use an RJ45 plug from the Cat5e, Cat6, Cat6a or Cat8 ranges instead.
What does 4 way and 6 way mean on these plugs?
It refers to the number of contact positions on the plug. A 4 way plug suits a basic two pair phone connection, while a 6 way plug carries extra pairs for multi-line phones or handset cords.