FBT 37483_VAIE2550_manual1.pdf - Manuale (Pagina 83)

6-6
OPERATING CONDITIONS AND TERMINOLOGY
UK
In both cases, use shielded balanced microphone cable. For details concerning the settings of the IN. 2 input, refer to the information shown
in the Music menu and under AUDIO SETTINGS > INPUT 2 and CHIME.
PRECEDENCE TERMINAL STRIP Terminal strip for connecting the precedence contact to the current music source, for activation of the
IN. 1 or IN. 2. inputs and of the CHIME, if enabled. The precedence function can be used in either of the 3 following ways:
- IN. 1 input only connected to the precedence contact and with the IN. 1 input set in the “Precedence” mode
- IN. 2 input only connected to the precedence contact and with the IN. 2 input set in the “Precedence” mode
- IN. 1 and IN. 2 inputs both connected to the precedence contacts, with the IN. 2 input set in the “Precedence” mode and the IN. 1 input
set in the “Mixing on IN 2” mode.
For details about the precedence settings, refer to the indications shown on the INPUT 1 and INPUT 2 panels and to the AUDIO SETTING
menu. Activation is carried out keeping the +12 V terminal connected to the PR. terminal, by closing a dry contact or connecting the available
precedence contact to table-top microphones.
R11. IN. 1 – MIC 1
INPUT 1 input for an external microphone, programmable as a Music or Voice source. It is possible to connect dynamic or electret
microphones to this input, enabling the phantom power supply. This input can be set in many different ways based on how the
operating mode is programmed:
- enabled directly as a Music or Voice source,
- mixed with input 2 (IN. 2).
- as a Voice source enabled by the precedence contact (PREC.), with a CHIME that can be activated/de-activated.
When it is used as a Voice source, it is possible to set priority, to 7 different levels, and the group of paging zones. The XLR -F
socket enables a balanced signal of up to 100 mV to be connected, by means of shielded balanced microphone cable. For details
concerning the settings of the IN. 1 input, refer to the indications contained in the INPUT 1 and CHIME of the AUDIO SETTING
menu and in the MUSIC menu.
R12. AUX IN Input for connecting an external source of music. It has one pair of RCA sockets, with conversion to mono, for sources with
unbalanced outputs at line level. For the audio settings of the AUX input, refer to the information contained in the MUSIC menu.
R13. Plug for 230 VAC mains power with built-in fuse Plug for connecting the equipment to the 230 VAC/50-60Hz mains power using
the power cable supplied with it. If it is necessary to replace the mains fuse, this must be done with one of the same type, i.e. 6.3 A
fuse, of the miniature 20 mm cylindrical type. (Consult the “Power supply and earthing” and “Safety Notes” sections for details about
safety).
R14. Frame connection The frame connection may be used to connect other equipment only for the purpose of shielding the low signals.
This terminal may not be used to connect the frame to earth for safety purposes. (Consult the “Power supply and earthing” and
“Safety Notes” sections for details about safety).
R15. Fuse for external 24 VDC power supply 32 A fuse, cylindrical type, 10x38 mm, and fuse-holder with bayonet coupling. This fuse
must be replaced solely with another identical one (Consult the “Power supply and earthing” and “Safety Notes” sections for details
about safety).
R16. RELAY 1 – RELAY 2 2 relay outputs for signalling to external peripheral units. The VAIE 2250 system enables the logical outputs
to be programmed to link activation of the output with system status events or for override functions in connection with emergency
conditions, or for signalling failures, emergencies and disabling. By default, the RELAY 2 output is programmed to signal CPU
failures (SYS Fault) in the normally de-activated condition. All the outputs can be programmed as Normally Active or Normally
De-activated. The connection provides 3 screw-down terminals for stripped wires for each relay, referred to the N.O., N.C. and
exchange contacts.
R17. EXT. AMP. IN Input socket for connection of the optional external amplifier FBT ref. MPA 5240. This enables the system to be
expanded, increasing the available power up to a total of 490W. Connect the constant-voltage power output of the amplifier to the
terminals provided for the 0V-70V and 100V signals of a VAIE 2250 unit. In a 12-zone system with two VAIE 2250 units connected
to one another, do not use a single expansion amplifier for both VAIE 2250 units. Rather, install two separate amplifiers. In this case
the total output power of the system will be 980 W.
R18. LOUDSPEAKER OUTPUTS Power outputs for the loudspeaker lines. Use only speaker units with constant-voltage 100 V line-
repeating coils. 6 output zones are available, each of which is split up into 2 lines, A and B, for creating the network of loudspeakers
with double lines for redundancy. In the event of a short circuit of one line, the VAIE 2250 system will de-activate the failed line and
continue to power the other line of the same zone, activating the failure signalling. 12 pairs of screw-down terminals for cables with
a cross-section of up to 2.5 mm
2 are available for connecting the 0 V to 100 V lines.
R19. CONTROL INPUTS 8 digital inputs for monitoring via external peripheral units. They enable programmed events to be activated,
including switching of the VAIE 2250 system to a Voice Emergency condition, requiring automatic sending of pre-recorded emergency
messages. Activation is possible by means of Normally Open or Normally Closed contacts, relaying the +24 VDC voltage supplied
from the service sockets. It is possible to enable diagnostics of the connecting stretch, arranging to install two 10-kOhm balancing
resistors in the proximity of the contact for activating the remote peripheral unit. The connection provides 11 screw-down terminals
for stripped wires: eight off control inputs and three off +24 VDC service sockets.
R20. CONTROL OUTPUTS 6 open-collector outputs for driving generic external or peripheral relays. The VAIE 2250 system enables
the logical outputs to be programmed to link activation of the output with system status events or for override functions in emergency
conditions or for signalling failures relating to the current emergency and to the disablement. These outputs can be programmed
as Normally Open or Normally Closed and they have internal 24 VDC voltage with automatically resetting protection devices. The
connection provides eight screw-down terminals for stripped wires: six off max. 200 mA open-collector outputs and two off +24 VDC
service sockets.