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EXTERNAL AMPLIFIER ADAPTER MODULE
FUNCTION
INDICATORS:
INTERNAL
CONFIGURATIONS:
CONTROLS:
CONNECTIONS:
CONNECTING THE MCA1
To carry out the connection of this module you should follow the steps indicated in the figure on next page.
Define the musical program number (one of the existing in the installation) you wish to use as background music in the zone
with the jumpers marked with nr.1. Place a jumper in the desired musical program number. For example: If you want this
module to have BGM number 2, you should place one jumper in J115.
Define the zone associated to this amplifier. For example: If you want this amplifier to act in zone 3, insert a jumper in
J104 (marked with nr.2 on next page).
ATTENTION: Each MCA1 module can be assigned to just one zone.
Choose now the possibility to either hear or hear not the BGA messages in the selected zone by means of the jumper (ON
or OFF) marked with nr.3.
ATTENTION: Essential to place this jumper in ON or OFF. If it were not put this jumper, the module would not work
correctly.
50.0034.01.00
MODULE INCLUDING THE CONTROLS OF THE SIGNALS TO ADAPT THE BGM, THE
MESSAGES
AND
THE
STRUCTURE TO AN EXTERNAL AMPLIFIER.
DESCRIPTION
The system permits to select up to 5 music programs (4 BGM plus no-music) different and
to assign them to 12 zones.
The BGM is attenuated or completely attenuated when a message or alarm is being sent.
The amplifier incorporates a 50 Hz subsonic filter to avoid the possible saturation of the
speaker matching transformers when replaying very low frequencies. This filter is
selectable with a jumper.
FEATURES
PAGING
: Message being sent by the sound system
-40 / -20 / -10dB
: Output level indicator (from -40dB to -10dB)
ZONES ASSIGNATIONS
BGM ASSIGNATION
: 1, 2, 3, 4, OFF
BGA
: On, Off
SUBSONIC
: On, Off
BGM VOL
: Adjust the BGM level
PAGE VOL
: Adjust the paging level (spoken messages or alarms)
BGA VOL
: Adjust the level of the sound messages configured as BGA
BGM ATT
: It permits to adjust the BGM attenuation level when it is required by the
chime/alarm
OUT: Balanced output signal.
ALARMS
(INCLUDING
THE
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MCA1 MODULE
PRIORITIES
HIERARCHY)
MCA1
1/2
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