Praesideo System Requirements - Bosch PM1-LISM6 Installation And Operation Manual

18 en | Planning
4.2.3

Praesideo system requirements

Make sure the Praesideo system conforms to the following requirements:
The Praesideo system is correctly configured and installed, according to the Installation and
User Instructions.
PRS-NCO3 (or higher) is used as the network controller.
The Praesideo system has software version 4.1 or higher.
The PRS-16MCI (Multi Channel Interface) has hardware version 04/15 or higher.
If the MCI/BAM (basic amplifier) is used, the MCI outputs are connected to the
Loudspeakers Line Isolator System.
The ground short detection for the PAM (power amplifier) and MCI/BAM outputs connected
to the Master Unit is switched off.
The fault outputs of the Loudspeakers Line Isolator System are connected to the input
triggers of the Praesideo system. Each loop fault output can be individually connected to the
Praesideo system, or fault outputs can be connected in series.
The general fault output on the master is connected in series with the master loop fault
outputs. The general fault output is a normally energized fail-safe relay.
The chosen contact inputs are configured as Zone Line fault inputs (see also the Praesideo
Installation and User Instructions). The output contacts of the Loudspeaker Line Isolator
System Master will distinguish between loudspeaker line failures and a ground short.
To ensure for correct ground short detection, set the power supply ground lift switch on one
of the Praesideo devices to ground, and the others to floating (see also the Praesideo
Installation and User Instructions).
If a PRS-4B125 amplifier is used, a DC Blocking Board or a capacitor and 33 ohm > 3 watt
resistor must be used between the tap-off of the Isolator Board and the connected
loudspeaker.
2014.03 | V1.1 | Installation and Operation Manual
Loudspeakers Line Isolator System
Bosch Security Systems B.V.