Optimus UP-127M4, Руководство по эксплуатации

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UP-67M4, UP-127M4,
UP-247M2, UP-487
Modular amplifiers. v 2.3
Modular
amplifiers
5
1. INTRODUCTION
Models UP-67M4, UP-127M4, UP-247M2 and UP-487 are modular amplifiers suitable for use with public
address systems, emergency announcements, background music and reproduction of speech, they are
remarkably strong and reliable.
Models and output power:
Model UP-67M4 UP-127M4 UP-247M2 UP-487
Number of power modules 4 4 2 1
Watts of each module 60 W 120 W 240 W 480 W
Each model features an in-built circuit to protect against short circuit or overloading in the speaker line as
well as a thermal protection circuit to prevent damage caused by overheating.
They allow, in combination with the SU-114N, the speakers line surveillance and amplifier status.
They occupy 3 units when mounted in a 19” standard rack cabinet. When Rack mounted, it is
recommended to install 1 unit perforated panels between them.
2. FRONT VIEW
(1) LEVEL INDICATORS
To indicate the power delivered to the line. The
LED marked as 0 dB indicated the maximum
power given by the amplifier.
(2) PROTECTION INDICATORS
They light when the Protection is operating due
either to an over-loading or to a short-circuit in
the loudspeakers line.
(3) PRIORITY INDICATORS
They light when the Priority channel is selected, it
is: when the pin number 6 is joined to the pin
number 8 in the RJ45 connector of the Priority
Input or when the Priority Control contact is
activated.
(4) VENTILATION INPUT. Do not obstruct
under no circumstances.
(5) PROGRAM INPUTS VOLUME CONTROLS
Turn them clockwise to increase the volume of
the Program channel. The potentiometers can be
adjusted by using a screwdriver.
(6) PRIORITY INPUTS VOLUME CONTROLS
Turn them clockwise to increase the volume of
the Priority channel. The potentiometers can be
adjusted by using a screwdriver.
(7) ON/OFF SWITCH
It switches on/off the amplifier only if the power
is supplied by the 230 V.a.c. mains. This switch is
not operational when the amplifier is supplied by
battery.
(8) ON/OFF LED INDICATOR
It lights when the amplifier is in operation, either
by Battery or Mains.
Figure 1