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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 191
12.2.3 EOL supervision board
The EOL supervision board LBB4443/00(see figure
12.3) contains the following:
X10 Flying leads - Two flying leads (30 cm) with
high-temperature insulation to install the EOL
supervision board in a loudspeaker (see section
12.3.3).
S700 Address selector - An address selector to set
the address of the EOL supervision board (see
section 12.4).
S701 Address selector - An address selector to set
the address of the EOL supervision board (see
section 12.4).
C540 Capacitor - A capacitor for factory adjustments.
Do not touch this capacitor.
R441 Resistor - A resistor for factory adjustments. Do
not touch this resistor.
12.3 Installation
12.3.1 Supervision control board
Proceed as follows to install the supervision control
board in the PRS-xPxxx Power Amplifiers:
1 Remove the lid from the power amplifier and locate
the output board (see figure 12.4).
2 Snap the supervision control board on the ‘table’
bracket (see figure 12.4).
3 Fit the supplied flat cable to the connector on the
output board and the supervision control board. Do
not twist the flat cable and fit the polarization pin of
the flat cable in the hole in the PCB next to the
connector.
figure 12.3: Component side LBB4443/00
8
8
2E
2E
4
6
C
A
4
6
C
A
-
C540
X10
S701
S700
R441
Warning
To prevent the hazard of electric shocks,
disconnect the mains cord and the back-up
power supplies from the power amplifier before
starting installing the supervision control board.
To reduce the risk of electric shock do not
perform any servicing other than that contained
in the operating instructions unless you are
qualified to do so. See section 1.2 Intended
audience.
Warning
The electronics inside the power amplifier and
on the supervision control board are susceptible
to electrostatic discharges. Wear an anti-ESD
bracelet during the installation of the
supervision control board.
Note
In the spare amplifiers also multiple line
supervision boards must be installed for those
channels that have multiple line supervision
boards in the corresponding main amplifier
channels. Otherwise, a Line supervision master
mismatch fault event is generated. Single and
multiple line supervision boards are not
compatible.