Messages and configurations are uploaded from a PC via USB 2 into the memory, after which the unit operates without a PC connection. Each message can have any length within the total available capacity. Up to 255 messages can be stored in the internal 16 MB flash ROM, without a need for battery backup. Both four-wire and three-wire schemes are supported. Six configurable volume-override output contacts are available for overriding local volume controls during priority calls. A separate 100 V call-only output provides addressing for an area where BGM is not required but where priority announcements are. The amplifier output is also available as a separate output on 100 V and 70 V. The CD also includes many useful programs, such as MP3-ripping software, a sample- rate converter, various audio and visual tools, and free, MP3-coded music.
The controller supports A/B wiring.Ĭonfiguration software is provided on the CD included with the unit. All zones may be individually selected from the front panel, and the BGM output level in each zone can be individually set in six steps. The 100 V-technique reduces line losses on longer distances and provides easy parallel connection of multiple loudspeakers. The powerful 240 W output section has six transformer-isolated 100 V constant-voltage outputs for driving 100 V loudspeakers in six separate zones. A total of 16 priority levels can be specified for microphone, call stations and trigger inputs for optimum system flexibility. The controller has two BGM source inputs and a mic/ line input with configurable priority, speech filter, phantom power and selectable VOX activation. The system is configured using DIP switches for basic functionality and a PC for more advanced functions.
The audio output uses standard analog audio 100 V line switching for full compatibility with the Plena family of public address equipment and Bosch EVAC-compliant loudspeakers. Additional Plena Amplifiers can be added to provide two-channel operation. Interconnections are made using standard RJ45 connectors and shielded CAT-5 cable.Ī built-in 240 W amplifier provides the power for the emergency call channel and BGM. Up to eight call stations can be connected. The controller can be used as a standalone system with up to six zones, or expanded to up to 120 zones using additional six-zone routers. The messages can be merged to allow even more flexible use of pre-recorded announcements and evacuation messages. It is the basis of the Plena Voice Alarm System, and has all the essential functionality for compliance with the EN 54 16 and EN 60849 standards, including full system supervision, loudspeaker line impedance supervision, a supervised emergency microphone on the front panel and a supervised message manager. The Plena Voice Alarm Controller unit is the heart of the voice alarm system.
20 dB (100 V mic / 100 mV line) or via input contactĬinch,stereo converted to mono,unbalanced rated output)ġ000 seconds at fs = 8 kHz,333 seconds at fs = 24 kHz