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PAVIRO Router
Note: The breakdown voltage on the loudspeaker output from a controller/router (HW: 2.00) is
120 V between the loudspeaker cable pairs and 60 V between a loudspeaker cable pole and
ground.
Wiring faults
Loudspeaker cables, which typically run through the entire building, are more sensitive to
wiring faults.
There are different types of wiring faults as mentioned below:
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6.3
Supply voltage
Connect a 24-volt DC source to the DC power input. The delivery includes a 2-pin connector.
Conductor cross-sections of 0.2 mm² (AWG24) to 6 mm² (AWG10) can be used.
Recommended connecting cable: flexible stranded wire, LiY, 1.5 mm².
The DC input is protected against incorrect polarity and overload. The associated fuse is
located on the inside of the device and is not accessible from outside of the device.
Warning!
Never connect the positive terminal + with ground.
!
Bosch Security Systems, B.V.
Ground fault: A ground fault is detected by the ground fault detection. If the resistance
between ground and speaker wire is < 50kΩ, a ground fault is indicated.
Short circuit or open line: A cable that is short-circuited or open is detected by the built-
in impedance measurement, if the reference values are set correctly.
Swapped zones: Swapped zones cannot be found/detected by impedance measurement,
if they have approximately the same load.
Single pole connections between two zones: Single-pole connections lead to increased
crosstalk when one of the zones becomes active and/or when both zones distribute a
different signal. This results in incorrect impedance values being measured. This fault
cannot be detected by the ground fault detection and/or impedance measurement.
Parallel connection of two or more zones: In this case two amplifier channels with
different signals or one amplifier channel and the impedance measurement can be
connected in parallel. This fault cannot be detected by the ground fault supervision and/
or impedance measurement, as the impedance reference values may already have been
set incorrectly.
Crossed zones: A wire from a certain zone has been swapped with a wire from another
zone. This fault cannot be detected by the ground fault detection and/or impedance
measurement, as the impedance reference values may already have been set incorrectly.
User manual
Connection | en
15
2022-11 | 07 | F01U306901
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