Optimus UMX-MC6 Operating Instructions Manual page 5

b) INSTALATIONS WITH AMPLIFIERS SURVEILLANCE AND BACKUP AMPLIFIER
b1) The amplifier connected to CHANNEL I is used as a MUSIC/BACKUP amplifier
and the amplifier connected to CHANNEL II as the PAGING amplifier.
Music is sent through CHANNEL
I to all zones. When a message
is sent to a zone, the music
stops in that zone and the
message sounds. In the rest of
the zones, the music program
continues to play.
If a fault occurs in the paging
amplifier, the music amplifier
also performs the
amplifier functions. In this case,
when a message is sent, the
music stops in all zones and the
message sounds in the selected
zone.
* An external load of value
between 1K8 and 2K2 and
power rate greater than 7W
should be connected in order
to monitor the
amplifier.
b2) The amplifier connected to
CHANNEL I is used as a
MUSIC/PAGING amplifier
and the amplifier connected to
CHANNEL II as the BACKUP
amplifier.
This option allows to assign a
single backup amplifier
multiple amplifiers using various
UMX-MC6 cards.
Music and announcements are
sent through the CHANNEL I.
When you send a message to a
zone, the music stops in all
zones that share the UMX-MC6
card and the message is sent to
the selected zone.
If an amplifier fails, the back-up
amplifier takes its place, so both
the music and
announcements will
operative.
* An external load of value
between 1K8 and 2K2 and
power rate greater than 7W
should be connected in order
to monitor the
amplifier.
UMX-MC6 version 3.2.000
MUSIC/BACKUP
AMPLIFIER
paging
PAGING
AMPLIFIER
paging
ZONES 1 TO 8
MUSIC & PAGING
AMPLIFIER
ZONES 7 TO 12
MUSIC & PAGING
AMPLIFIER
to
ZONES 13 TO 18
MUSIC & PAGING
AMPLIFIER
the
remain
BACKUP
AMPLIFIER
backup
UMX-MC6
Switching card with 2 input channels
and 6 output zones
Figure b1
*
Figure b2
*
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