Bosch IRIS-Net User Manual page 954

IRIS-Net
IMPEDANCE METHOD
The values of frequency, level and tolerance can be edited and adapted to the real conditions. To generate the
reference values a first line measurement must be performed, the resulting measurement values are stored as
reference values. The measurement of the lines and the comparison with the reference values is done automatically
either permanently or every day at the scheduled time if the line is not busy. Each audio signal on the line interrupts
the line measurement. The measurements will be continued automatically if the line is free again.
Notice!
Impedance reference values (IMP-REF) shall be measured and set for all used loudspeaker lines.
The reference values are necessary not only if supervision type IMP is selected, but also for short
circuit detection if supervision type EOL or PEOL is selected. The reference values are further
needed for an impedance measurements triggered by an amplifier overload detection.
EOL METHOD
To enable the EOL supervision for a zone or line in the column EOL Q / A in the first line the number of EOL modules
connected to the line must be entered, in the following lines the addresses of the modules must be entered. Enter 0 to
disables the EOL method for the corresponding line.
Notice!
For power supply of the EOL modules a pilot tone is required, so the pilot tone generator of the
power amplifier shall be activated.
Topology/Zones Dialog
The Topology/Zones dialog window allows configuration of Topologies and Zones. Zones are configured in a topology,
each zone can be selected to be member of a Group.
IRIS-Net offers basic validation checks if the connections are valid. If a rule is not followed correctly, the connection
line turns red.
The following rules apply:
– One amplifier output can be connected to one or more router cluster inputs in parallel please refer to Line
topology. Only identical inputs of router clusters can be connected in parallel, e.g. if a amplifier output is
connected with the AMP IN1 input of one router cluster, the amplifier output can only be connected to AMP IN1
inputs of other router clusters. The same is valid for the router cluster input AMP IN 2. So it is not allowable to
connect different types of router cluster inputs to one amplifier output.
– One amplifier output can always be used for one topology only. E.g. if a amplifier output is connected to a router
cluster set to 1-in-N topology, the amplifier output can not be connected to a router cluster using another type of
topology (e.g. 2-in-N).
– If the two output channels of an amplifier are used for a 2-in-N or Program/Call topology and the outputs are
connected to more than one router cluster, the outputs have to be connected to the same input (e.g. always AMP
IN 1) of the router clusters.
– If a 2-in-N or Program/Call topology is selected, going online is not possible if the identical amplifier output is
connected to both inputs.
– Do not connect an amplifier output to a "regular" input of a router cluster (AMP IN 1, AMP IN 2) and a spare
amplifier input (S1, S2,) at the same time.
– If router clusters with EOL8001 supervision are used, always connect one amplifier output to router clusters of
one device only.
Bosch Security Systems B.V. User Manual
PAVIRO | en 954
2017.05 | 3.20 | F.01U.119.956