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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 134
8.2 Controls, connectors and
indicators
8.2.1 Front view
The front of the power amplifier (see figure 8.2) contains
the following:
1 Menu display - A 2x16 character LCD display
gives information about the power amplifier (see
section 8.6).
2 Menu button - A turn-and-push button to navigate
through the menu (see section 8.6).
3 Monitoring headphones output - A 3.5 mm
(0.14 inch) jack socket to connect headphones for
audio monitoring purposes.
8.2.2 Rear view
The rear of the power amplifier (see figure 8.2) contains
the following:
4 Ground - A connection to electrically ground the
power amplifier.
5 Control inputs - The control inputs can be used to
receive signals from third party equipment that must
trigger actions in the Praesideo network (see
section 8.3.7).
6 Audio inputs - Audio inputs for receiving audio
signals from analog audio sources (see
section 8.3.6).
7 Back-up power - A socket for connecting a
back-up power supply (see section 8.3.8).
8 Mains on/off switch - A switch to switch the
mains of the power amplifier on and off (see
section 8.3.2).
9 Fuse holder - A fuse holder with a fuse that
protects the power supply of the power amplifier (see
section 8.3.2).
10 System bus - Two system bus connectors to
connect the power amplifier to other Praesideo
equipment.
11 Amplifier channels - Each power amplifier unit
contains 1 to 8 completely separated and
configurable amplifier channels. The number of
amplifier channels depends on the type of power
amplifier (see section 8.3.5).
12 Mains inlet - A mains socket to connect the power
amplifier to the mains (see section 8.3.2).
13 Signal Ground - A switch that connects the signal
ground to the safety ground (see section 8.3.4).
14 Voltage selector - A switch to select the local
mains voltage (see section 8.3.2).