Skip to main content

Modular Jacks (RJ)

About Modular Jacks (RJ)

Modular jacks (RJ) are standardized 4P4C through 10P10C PCB-mount and cable-side connectors used for Ethernet, telephony, and serial data links in industrial equipment. Common variants include RJ45 (8P8C) for Cat5e/Cat6 Ethernet, RJ11/RJ12 for legacy telecom, and shielded or unshielded housings in vertical, right-angle, and surface-mount configurations.

Modular Jacks (RJ) by brand