FBT 37483_VAIE2550_manual1.pdf - Manuale (Pagina 67)

4-1
GENERAL DESCRIPTION
UK
4.1 SYSTEM OVERVIEW
The VAIE 2250, with its entirely digital audio processing and sophisticated control system, has been carefully designed and built to
comply with the most stringent safety standards and to guarantee high-quality sound and intelligibility. The input routing section is able
to manage several sources of sound such as microphones, calling units and devices for background music, including USB storage
units. The power stage has two 250 W Class D amplifiers serving the “voice” and “music” channels, and the speaker output section
consists of six separate zones, with independent control of the music volume for each zone. The “Music” amplifier also has the function
of a back-up unit, automatically replacing the “Voice” amplifier in the event of a failure. Furthermore, each zone output has two circuits
for loudspeaker lines (A and B) to ensure full coverage of the area even in the event of a failure of the circuit of one of the two lines.
The multi-purpose front-panel controls and the LCD display make programming and set-up easy. In addition to the normal broadcasting
of announcements and music, the VAIE 2250 is capable of sending out alarm calls in emergency situations via the on-board hand-held
microphone or via remote dedicated emergency units. Furthermore, in accordance with EN54-16, it is monitored constantly in order
to signal any upsets promptly. It is possible to connect two VAIE 2250 units to one another so as to combine two 6-zone systems and
configure a single system with a total of up to 12 zones. The line connecting them can be as long as one km and the remote emergency
stations will ensure overall management of the whole system.
The microphone stations that can be connected to the VAIE 2250 are listed below:
Calling stations with zone selection
• MBT 1106: 6-zone zone paging unit.
• MBT 1112: 12-zone paging unit.
Remote emergency units
• FMD 2001: All Call emergency unit.
• FMD 2012: Emergency unit for calling up to 12 zones.
The connections between the VAIE 2250 and the microphone stations must be made solely with Cat. 5 SF/UTP cables
(see the section on Connections for details).
6-ZONE EVACUATION SYSTEM
with REMOTE EMERGENCY UNITS