Bosch IRIS-Net User Manual page 774

IRIS-Net
LineSupervision dialog
The Line Supervision dialog allows configuring and control of the DPM line supervision. Line supervision can be done
via line impedance measurement method or the End of Line (EOL) method.
– When using the impedance measurement method the impedance of the speaker line is calculated using a voltage
and current measurement. A fault message is indicated in the event that the measurement exceeds or falls short of
the tolerance range. The impedance measurement method is not suitable for permanent line supervision. The
upper and lower bounds of the impedance measurement, e.g. frequency or impedance value, depend on the
amplifier type used, please refer to the amplifier owner's manual.
– When using EOL 8001 modules the amplifier is communicating with the modules. A fault message is indicated if
the communication fails, e.g. because of a short circuit or wire break. The EOL method allows permanent
supervision, acoustic signals do not interrupt or affect the supervision. Usage of EOL 8001 modules is only
possible if direct topology is used.
LINE SUPERVISION TABLE
Element
ZONE/LINE
Bosch Security Systems B.V.
Description
System internal description of the zone or line.
User Manual
PROMATRIX 8000 | en 774
2017.05 | 3.20 | F.01U.119.956