Block-selector Trombon BS-16 is installed at the control room post and is designed to organise two-way voice communication with call panels Trombon-VP, located in fire alarm zones. Up to 16 communication lines with fire alarm zones can be connected to the selector block, and up to 2 Trombon VP call panels can be connected to each communication line. To connect Trombon VP to Trombon BS-16 cable 2x2x0.2.
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