Trombon VP Red Call Panel for Fire Alarm Communication

Call panel "Trombon VP" (hereinafter referred to as VP) is installed in the fire alarm zone and is designed to organise two-way voice communication with the selector block "Trombon BS-16", installed at the post-dispatch room. Power supply of the fire alarm system is carried out through the communication line from the selector unit. On one zone of the selector block "Trombon BS-16" it is possible to connect one main call panel and one duplicate call panel.