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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 4 | Amplifiers en | 142
8.3.7 Connecting control inputs
Each type of power amplifier has 8 control inputs. The
control inputs can receive signals from third party
equipment that must trigger actions in the Praesideo
system. The control inputs can be configured to act on
contact make or on contact break (see section 43.3). It is
also possible to supervise the cables for short-circuits
and open connections (see figure 8.11 and figure 8.12).
Whether a control input is actually supervised or not is
defined in the configuration.
figure 8.11: Supervised control input
figure 8.12: Non-supervised control input
Control In
12345678
10kΩ
10kΩ
Control In
12345678
Warning
Do not connect DC or AC signals to the control
inputs, otherwise the input circuit may be
damaged. Only use voltage-free contacts.
Note
Do not combine control input wires of multiple
control inputs (e.g. do not use a common return
wire).
Note
Even during amplifier faults, the control inputs
on PRS-xPxxx power amplifiers stay available as
long as mains or back-up power is available.