Family reference
Positions, populated contacts and service role are separate observations; a modular housing alone does not identify the circuit.
3 forms 3 engineering profiles 2 related comparisons
Recognition & reference
Recognition illustrations are not to scale or fabrication drawings. The label-led symbols below, where present, are not interface geometry. Read the illustration limits in each exact reference; equal image boxes do not establish equal physical sizes.
Computer-generated illustrationP111 / Telephone / Connector form
Count positions and contacts separately.
Computer-generated illustrationP112 / Telephone / Connector form
Same position count can hide a different populated layout.
Computer-generated illustrationP113 / Telephone / Connector form
Handset and telephone-line connections are different questions.
An alternate overview of the same facts shown in the cards. On narrow screens, scroll the table horizontally or read the cards above. Alias lists retain the existing first four entries; the full record has further detail. This is not a dimension, pinout or compatibility table.
| Connector form | Shape | Common aliases | Engineering |
|---|---|---|---|
| 6P4C modular plug (often sold as RJ11) | modular | RJ11, RJ-11, phone line plug, telephone cord | Engineering profile → |
| 6P6C modular plug (often sold as RJ12) | modular | RJ12, RJ-12, 6 position 6 contact | Engineering profile → |
| 4-position modular handset form | modular | RJ9 handset, RJ10 handset, RJ22, 4P4C handset | Engineering profile → |
Tell them apart
Related pages may include forms from another family. They explain distinctions, not permission to connect.
Similar at first glance
Before choosing a reference
Resolve abbreviations, informal names and legacy labels without treating an alias as an additional connector identity.
Open Telephone terminology and aliases →Continue with the evidence
A family name is a starting point. Use the exact record and device documentation before choosing cables or planning a connection.
