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With shielded cable, the call station can also be used in an EMC level 5 (heavy industry) environment.The call station has a balanced line level output, making it possible to position it up to 1000 meters from the controller, using CAT‑5 extension cables.This call station features selectable gain, a selectable speech filter, and a limiter for improved intelligibility.Up to eight keypads can be added with each keypad adding seven zone or zone-group keys.The number of selectable zones or zone groups can be increased by connecting call station keypads (LBB 1957/00).Each call station supports six zone selections. The LBB 1957/00 Plena Voice Alarm System Keypad is an extension adding seven additional keys.In addition to tabletop use, the special design allows it to be neatly flush mounted in desktops. It can make calls to selected zones (one to six and all-call) in a public address system built with the Plena Voice Alarm System. The Bosch LBB1956/00 Plena Voice Alarm Call Station, 6 Zones is a stylish, high-quality call station with a stable metal base design, a flexible microphone stem and a unidirectional condenser microphone.

Bosch plena voice alarm system software