Installation
Operating voltage
The power amplifier receives its power supply via the MAINS IN connector. Only the provided
power cord may be used. During installation, always separate the power amplifier from the
mains. Connect the power amplifier only to a mains network, which corresponds to the
requirements indicated on the type plate.
Power
The L Series power button is located on the front of the amplifier panel. The C Series power
switch is located on the rear of the amplifier panel.
L Series
The Power button on the front panel separates the power amp from the mains. Pressing the
Power button turns on the power amp. A soft start circuit compensates mains inrush current
peaks and thus prevents triggering AC mains fuse when switching on the amplifier. Speaker
system switch-on is delayed by approximately two seconds via output relays, effectively
suppressing any possible power-on noise, which otherwise might be heard through the
loudspeakers.
Figure 5.1: Power button on the front panel (L Series)
C Series
The Power/Standby switch on the rear panel is used to turn on the power to the amplifier or
put the amplifier into standby mode. To separate the amplifier from the mains it is required to
disconnect the mains power connection. A soft start circuit compensates mains inrush current
peaks and thus prevents the automatic cutout of the mains from reacting when switching on
the power amplifier. Speaker system switch-on is delayed by approximately two seconds via
output relays, effectively suppressing any possible power-on noise, which otherwise might be
heard through the loudspeakers. PROTECT-LED lights up and fans are at high speed during
this delay. This indicates all protections are working fine.
Figure 5.2: Mains switch on the rear panel (C Series)
5
5.1
5.2
5.2.1
5.2.2
14
en | Installation
L Series and C Series FIR-Drive Power
Amplifiers
2017.10 | 02 | F.01U.327.801
Installation manual
Bosch Sicherheitssysteme GmbH
Содержание C1300FDi-AU
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