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The BetterBox A/B RJ12 Data Switch provides a simple, reliable way to manually switch a single RJ12 line between two different destinations. With a sturdy metal enclosure and a smooth front-panel rotary selector, this passive, non-powered switch is ideal for telecom lines, control signals, or other low-speed serial/data applications using RJ12 connectors.Ports: 3 × RJ12 (Input/Output, A, B)Function: Manual A/B selection via front rotary knobOperation: Passive (no power required)Construction: Rugged metal housing for durabilityApplications: Telephone systems, POS terminals, legacy serial devices, and control equipment using RJ12 cabling
