Bosch Praesideo 3.5, Installation And User Instructions Manual

Page: 167 / 498

Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 167
10.2 Controls, connections and
indicators
10.2.1 Front
The front view of the basic amplifier (see figure 10.2)
contains the following:
1
Mains status - Shows the status of the mains power
connection and supply (see section 10.6).
2 Battery status - Shows the status of the battery
back-up supply (see section 10.6).
3 Amplifier status - Shows the audio level and status
of each audio output channel (see section 10.6).
10.2.2 Rear
The rear of the basic amplifier (see figure 10.2) contains
the following:
4
Audio in - Local audio input (see section 10.3.6).
5 Sensitivity control - Potentiometer for the local
audio input volume (see section 10.3.6).
6 MCI - 2 x RJ45 - 8 pin Multi channel interface
connection (see section 10.3.3).
7 Spare In - Spare switching input from a spare
amplifier channel (see section 10.3.5.3).
8 LSP out - A and B outputs to loudspeakers (see
section 10.3.5).
9 Supervision - Mains and battery supervision.
10 Signal Ground - A switch that connects the signal
ground to the safety ground (see section 10.3.4).
11 Back-up power - A socket for connecting a
back-up power supply (see section 10.3.7).
12 Mains inlet - A mains socket to connect the
amplifier to the mains (see section 10.3.2).
13 Voltage selector - A switch to select the local
mains voltage (see section 10.3.2).
14 Ground - A connector to electrically ground the
unit (see section 10.3.4).