Introduction; Front View; Up-247M2, Up - Optimus UP-127M4 Operating Instructions Manual

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
Number of power modules
Watts of each module
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.
Modular amplifiers. v 2.3
UP-67M4, UP-127M4,

UP-247M2, UP-487

UP-67M4
4
60 W
Figure 1
UP-127M4 UP-247M2
4
120 W 240 W
(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.
Modular
amplifiers
UP-487
2 1
480 W
5