Telephone Connectors

Telephone Cables & Connectors at Jaycar

Businesses being available to their customers, our loved ones being just a phone call away – whatever your needs, our range of telephone cables and connectors at Jaycar will ensure your communication lines are always clear.

While they might not be your first point of concern, when you need to set up new phone lines or upgrade existing systems, these connections will allow you to have smoother, consistent, uninterrupted conversations with the people who matter.

Browse our selection to find the right phone cable and connector models for your system.

What is the difference between RJ11 and RJ12 telephone cables?

You might have seen RJ11 and RJ12 connectors and wondered what separates them. Here’s the scoop:

• RJ11: The older of the options, the RJ11 is the go-to connector for single phone lines in homes. It has four positions but usually uses two or four wires, making it simple and effective for everyday use.
• RJ12: Newer and more advanced, the RJ12 has six positions and six wires. It’s perfect for multi-line phone systems like those in office environments.

What wire is used for telephone cables?

Most telephone wires consist of one or more twisted pairs of copper wire, with the 4-strand (or two twisted pair) configuration being the most common. In this setup, red and green wires form one pair and yellow and black wires form the other.

A single telephone line requires just two wires, meaning a 4-strand wire can support two separate phone lines. The twisting of the cables helps prevent interference between the lines.

If you need to accommodate more than two lines, opt for a 6-strand wire or higher.

Is Cat 5 a phone cable?

While Cat 5 is often associated with Ethernet networks, it’s also fantastic for telephone lines. Its ability to carry both voice and data makes it a smart choice for modern homes and offices. Plus, using Cat 5 can simplify future upgrades to higher-speed networks.

What type of connector is used to plug a telephone line?

The registered jack 11 (RJ11) connector is the most common plug for phone cables. It’s that little modular plug you see everywhere, offering a simple and reliable connection for your phone to the wall jack. For more complex office setups with multiple lines, the RJ12 connector is your solution.

For more information and to explore our range of connectors, check out our RJ-45, RJ-11 & RJ-12 connectors.