This is a RJ11-6P4C(6 position, 4 contacts) modular connector, commonly used for telephone handsets and wall outlets.
This Cat3 6P4C Keystone Jack with Terminal Block is wired in accordance with the EIA/TIA 568B wiring standard for structured cabling.
【Standard Keystone】Perfect solution for adding a telephone port to your project enclosure, If you need to add a panel-mount connection for tidiness. Fits most blank wall plates, patch panels or surface mount boxes in the market.
【Nice&Tidy】Suitable for wall decoration for a variety of places, can be well-integrated and embedded in the wall. Wiring patterns clear labeled on the back for visual reference.
【Reliable Connection】Having the screws for wire termination, letting you establish a good grip on the cable for reliable electrical contact. Gold plated pins, provides stable and fast transmission.