What is the meaning of modular plug?

A modular plug is a type of connector used for terminating cables, commonly found in telecommunications and networking. The most well-known type is the RJ45 connector, which is used for Ethernet cables. These plugs are designed to be easily connected and disconnected, allowing for flexibility in setting up and modifying network configurations. They typically have a plastic housing with metal contacts that ensure a secure connection with the corresponding jack.

Modular Connectors Type

Modular connectors come in several types, each designed for different applications. Here are some common ones:

1. RJ11: Typically used for telephone lines, it usually has 4 or 6 positions and 2 or 4 contacts.

2. RJ12: Similar to RJ11 but with 6 positions and 6 contacts (6P6C), often used for telephone systems.

3. RJ45: Used for Ethernet networking, it has 8 positions and 8 contacts (8P8C).

4. RJ25: Has 6 positions and 6 contacts (6P6C), used for multi-line telephone systems.

5. RJ61: Similar to RJ45, but used for telephone systems with 8 positions and 8 contacts (8P8C).

These connectors are modular because they can be easily inserted and removed, providing flexibility for various wiring configurations.

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