RJ Connectors
RJ (Registered Jack) are a crimp connectors which are used for below applications:
- Telecoms
- Networking
- Low voltage lighting control
Note: RJ connectors are available in male and female.
Note: Modular connectors are available in four sizes. Connectors with 4, 6, 8 and 10 positions.
Some of the most common types are as below:
| RJxx | Position | Contact | Application ( e.g. ) |
| RJ9 | 4 | 4 (4P4C) | Telephone handset cable |
| RJ10 | 4 | 4 (4P4C) | Telephone handset cable |
| RJ11 | 6 | 4 (6P4C) | Telephone cable dial-up modem, ADSL |
| RJ12 | 6 | 6 (6P6C) | System phones. |
| RJ14 | 6 | 4 (6P4C) | 2 lines telephone cable, modem of computer |
| RJ22 | 4 | 4 (4P4C) | Telephone handset cable |
| RJ25 | 6 | 6 (6P6C) | 3 lines telephone cable |
| RJ45 | 8 | 8 (8P8C) | Network wiring as an Ethernet cable (Ethernet, Fast Ethernet, Gigabit Ethernet) |
| RJ48 | 10 | 10 (10P10C) | Data environment |
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