NORTH HILLS - NH 12448 - Connector, BNC. Female BNC to RJ12 Balun, New.

NORTH HILLS - NH 12448 - Connector, BNC. Female BNC to RJ12 Balun, New. North Hills NH 12448 refers to a specialized electronic component: a Female BNC to RJ12 balun connector manufactured by North Hills Signal Processing. Key Specifications • Function: Converts a coaxial BNC signal to an RJ12 telephone-style connection. • Pin Configuration: This specific model utilizes only 4 pins of the standard 6-pin RJ12 connector. • Applications: Commonly used in networking, legacy data transmission, and signal conversion to run data over twisted-pair wiring Cable Details & Wiring Structure • Unbalanced Side: Uses a 93-Ohm characteristic impedance coaxial cable, terminating in a standard female BNC connector. • Balanced Side: Connects to a standard 100-Ohm data cable via an RJ12 jack. Though the physical port accommodates a 6-pin RJ12 housing, internal transformer circuitry only pins out 4 of the pins to feed the balanced differential signal lines. Application: The North Hills NH 12448 balun is a specialized data/telecom adapter designed to connect a single-ended 93-Ohm coaxial cable (such as RG-62) to a 100-Ohm unshielded twisted pair (UTP) network. This vintage combination was widely utilized in legacy networking environments—such as IBM 3270 mainframe computer systems—to adapt the coaxial cabling run from controllers to terminal devices over structured building phone systems. Vintage, New Old Stock