5555979-1 is a single port right angle modular jack designed for Cat 3 voice and data communication applications. This through-hole mounted connector features 6 positions with 4 contacts, a height of 16.2 mm, and a tail length of 3.81 mm for reliable PCB mounting. The unshielded design without LEDs, panel stops, or grounding options provides a compact and cost-effective solution. It meets FCC rules and regulations part 68 as supported by TIA-1096-A, making it suitable for telecommunications equipment, telephones, routers, and business equipment requiring standardized network connections.