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MP30/MP60/MP120
50.0039.01.00 1/2
100V LINE AMPLIFIER
MP30/MP60/MP120 MODULE
FUNCTION
100 VOLTS AMPLIFIER MODULE WITHOUT TO NEED A MATCHING TRANSFORMER.
DESCRIPTION
Opposite to the most part of 100 volt line amplifiers, this module doesn’t need matching
transformer. This means a higher sound quality due a transformer increases clipping and
frequency distortion at low frequencies. This means less weight as well. There is not
floating output due to it doesn’t use a bridge structure.
The system permits to select up to five BGM programs (4 BGM plus no-music) and to
assign them to 12 zones.
The BGM is attenuated or completely attenuated when a message or alarm is being sent.
This module has an anticlip and DC OUT protection circuit as well.
The amplifier incorporates a 50 Hz subsonic filter to avoid the possible saturation of the
speaker matching transformers when replaying very low frequencies.
Available at 30/60/120W.
FEATURES
INDICATORS:
PAGING
: Message being sent by the sound system
CLIP
: Indicates the anticlip circuit attenuation
-40 / -20 / -10dB
: Output level indicator (from -40dB to -10dB)
OVERLOAD
: Indicates “Low load” in the 100-v line.
THERMAL
: Disconnects the module in case of overheating
INTERNAL
ZONES ASSIGNATIONS
CONFIGURATIONS:
BGM ASSIGNATION
: 1, 2, 3, 4, Off
BGA
: On , Off
SUBSONIC
: On, Off
CONTROLS:
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
CONNECTIONS:
100 V LINE OUT
: Direct connection
CONNECTING THE MP30/MP60/MP120
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 amplification 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.
MP30/MP60/MP120
2/2 50.0039.01.00
Enable (ON) or disable (OFF) the subsonic filter at 50 Hz by means of the jumper marked with nr.4. We recommend to
enable the filter in all the cases except when using 12'' or bigger speakers.
ATTENTION: Essential to place this jumper in ON or OFF. If it were not put this jumper, the module would not work
correctly.
Insert and screw the module and the chassis together in the front and back panels.
Connect the data buses (Flat 10- and 20-way cables) to the connectors marked with nr.5 in the figure on next page.
Connect the power supply cable to the amplifiers marked with nr.6 on the figure on next page.
Link together the front and back panel. In this case you will have to connect following connector pair marked with nr.7:
J121-J101.
Once the complete installation of one or various chassis and the peripherals connections to ENVIRO has been carried out,
you should adjust the BGM, BGA and PAGE volume controls and finally adjust the BGM attenuation as the final step in this
modules configuration.
ATTENTION: These power modules must be adequately cooled, so don’t cover the up and back air-cooling system grill of
the chassis.
ATTENTION: In order to connect and to disconnect these modules, we must make sure always, that the power supply
MPS240 is unloaded, to avoid possible unloadings in the modules. In order to unload the source, to extinguish the MPS240
and to wait for 2 minutes.
MP30/MP60/MP120 MODULE
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