2.5 3.5 6.35 mm phone jack smd /dip audio jack connectors
A phone jack, also known as a telephone jack or telephone connector, is a hardware component used to connect a telephone or other telecommunications device to a telephone line or network. It is a standard interface found on most landline telephones and can also be present on other devices such as fax machines and modems.
A phone jack typically consists of a small, rectangular plastic or metal housing with several metal contacts inside. The number and configuration of these contacts can vary depending on the type of jack and the specific application.
Phone jacks come in different sizes and types. The most common types include:
RJ11: This is the standard jack used for connecting telephone devices. It has six positions and two to four contacts, depending on whether it is used for a single or multiple line connection.
RJ45: This is a larger, rectangular jack typically used for Ethernet networking. It has eight positions and eight contacts and is commonly found on VoIP telephones or devices that incorporate both telephone and data connections.
When connecting a phone or other device to a phone jack, a corresponding plug or connector is inserted into the jack, establishing a connection with the telephone line. The plug is typically a small plastic device with metal contacts that align with the contacts inside the jack.
Phone jacks are essential for establishing a reliable and secure connection between telephone devices and the telephone network. They provide a standardized interface for connecting and disconnecting telecommunication equipment and are crucial for voice communication in both residential and commercial settings.