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The Bosch PRA-CSE Call Station Extension is a keypad add-on for PRAESENSA call stations, designed to enhance zone selection and control. It adds 12 configurable buttons with LED light rings and status indicators, ideal for both business and emergency operations. Up to four extensions can be connected to a single call station, enabling operators to monitor and control multiple zones simultaneously. Features include easy labeling, glove-friendly buttons, and reliable interconnection with a metal coupling plate. Perfect for large venues requiring fast, clear, and accessible zone management.