UTI1- Bogen single-zone paging universal telephone interface - Compatible with all standard analog port types -Includes 2 audio outputs with level controls, each of which can provide audio for 150 Bogen self-amplified speakers - Telephone interfaces: loop start trunk, ground start trunk, station access (analog ring-up), page port contact closure activation, page port voice activation - Simple 2-switch interface setup - Programmable activation of AUX contacts - C-form contact - High-impedance transfo