FBT 37483_VAIE2550_manual1.pdf - Manuale (Pagina 75)

5-6
CONNECTIONS AND SIZING
UK
5.4.3 Example n°3: Various types of PA source with progressive degrees of priority, “voice” amplification channel
Connection by way of example of one table-top microphone station, not pre-amplified, with a precedence contact; of one grip-type
microphone with automatic VOX activation over music; of one PABX with an audio output for automatic announcements over the sound-
broadcasting system and digital stations of the FMD range for service announcements with zone selection. For details concerning the
settings refer to the relevant sections indicated under AUDIO SETTING.
A - Table-top base with electret microphone, balanced output connected to
the IN.1 input – MIC and precedence contact connected to the PREC. input.
The announcement will be addressed to the group of zones indicated in the
ZONE LIST on the basis of the priority set.
Set the via the INPUT 1 panel: >MODE: PRECEDENCE
>PH: ON
>Priority: 3
>Zone list: as desired
>VOL.: as desired
Set the via the CHIME panel: > MIC 1: ON
N.B.: In a 12-zone system, the microphone input that uses the precedence
function on one VAIE 2250 unit is not shared with the other VAIE 2250 unit
and is broadcast as a “local” source.
B - Grip-type dynamic microphone, balanced output connected to the input
IN.2– MIC with VOX function.
The announcement will be addressed to the
group of zones indicated on the ZONE LIST according to the priority that
is set.
Set the via the INPUT 2 panel: >MODE: VOX
>PH: OFF
>Priority: 1
>Zone list: as desired
>VOL.: as desired
Set the via the CHIME panel: >MIC 2: OFF
N.B.: In a 12-zone system, the microphone input that uses the VOX function
on one VAIE 2250 unit is not shared with the other VAIE 2250 unit and is
broadcast as a “local” source.
Caution! Do not connect any other equipment to the LINE terminals
of the IN.2 input.
C - PABX with balanced line output for external paging, connected to the
IN.3 input – LINE with VOX function.
The announcement will be addressed
to the group of zones indicated on the ZONE LIST depending on the priority
that is set.
Set the via the INPUT 3 panel: >MODE: VOX
>PH: OFF
>Priority: 7
>Zone list: as desired
>VOL.: as desired
Set the via the CHIME panel: >VOX: OFF
N.B.: In a 12-zone system, the line input that uses the VOX function on one VAIE 2250 unit is not shared with the other VAIE 2250 unit
and is broadcast as a “local” source”. If necessary make a parallel connection on input IN 3 of the other VAIE 2250 unit and also set the
input used on the remote VAIE 2250 accordingly.
D - Digital microphone stations connected in cascade formation to the PAGING UNIT input. The announcement will be addressed to the
zones indicated when programming the keys of the bases depending on the priority set for each base.
Set the PAGING UNITS panel:
>VOL.: as desired (general volume of the line for all microphone stations)
Set the CHIME panel: > UNIT: ON
N.B.: In a 12-zone system, refer to point 5.5 for the operating modes of the PAGING UNITS.
C A
B
D
D
PABX
N.B.: The connec ons between the VAIE 2250 and PAGING UNITS
must be made solely with Cat. 5 SF/UTP cables.
Sizing: For each VAIE 2250 unit, up to a maximum of 16 stations of the PAGING UNIT range can be connected. Use the Cat. 5 SF/UTP
connecting cable, with its shielding plait. The following limits must be observed for the connections:
N. 1 station connected to a line 800 metres long.
N. 8 stations distributed along 2 lines, each 200 metres long (4 stations per line).
For systems calling for greater distances or a higher number of stations to be connected, it is advisable to power the stations by means
of the additional power supply unit connected to the local socket of the base.
The maximum length of the connecting line, adding up the lines connected to the two RJ45 sockets, is 1 km. For further details concerning
the type of power supply, the configuration of the cable, programming of the selection keys and setting of the priorities and addresses,
refer to the Instruction Manual of the stations of the MBT range (MBT1106 & MBT1112).