EIB Alarm Central Unit, surface-
mounted
75730010
Technical
Documentation
© Gebr.Berker 2005
Version: 18.08.2005
Page: 37 / 81
(Subject to prior change)
75730010.doc
Part 9
4.7 Arming behaviour in dependence of the configuration
Arming areas can take different states at the same time and independently of one another. If areas are nested with one
another or cascaded
(refer to "1.3 Configurations", page 19)
their states may possibly influence one another.
For example, individual arming areas, regardless of what their configurations are, can thus not be armed as soon as
only one of them is in the "alarm" state.
Internally/externally armed:
- External arming:
The higher-ranking arming area (e. g. AA 2) can only be activated if its subordinate area (e. g. AA 1) is ready for
arming. If there is a fault in this area, or if a detector is permanently open, you cannot arm the system.
- Internal disarming:
In the "internally armed" state (e. g. AA 1 is armed), you can disarm the system through an arming device of the
higher-ranking area (e. g. AA 2) by arming or disarming on this device. This will be possible in the "internally
armed" or "pre-alarm" states.
In addition, signals can also be acknowledged in the "disarmed after alarm" or "fault" system states in the subor-
dinate area by the arming device assigned to the higher-ranking area.
In the "internally armed" state and in the event of an alarm, the latter can also be deactivated by an arming de-
vice assigned to the higher-ranking area, provided that this device has not been tampered with.
Once an "external" arming device has been tampered with in the "internally armed" state and if you try to do dis-
arming through the device tampered with a sabotage alarm will be immediately raised in the subordinate area. In
addition, the higher-ranking area will change into the fault state as soon as the sabotage of the arming device
has been detected. You can only view such fault in the display units (if parameterized) after you have disarmed
the subordinate area.
Cascaded:
- Arming:
You can only arm the higher-ranking area (AA 4) after you have armed all areas subordinate to it. Therefore, the
higher-ranking area cannot be activated if there is a fault or if there are open detectors in the subordinate areas.
Once the higher-ranking area (AA 4) has been armed, the arming devices assigned to the subordinate areas are
deactivated, i. e. you can no longer use them for disarming. Tampering with a subordinate arming device will
lead to an alarm when AA 4 is in the armed state.
- Disarming:
You can only disarm the subordinate areas after you have already disarmed the higher-ranking area (AA 4).
Please note for the "cascaded" configurations that the subordinate areas will remain armed after you have reset
the higher-ranking area (AA 4) into the "disarmed" state. If any detectors of an area subordinate to AA 4 have al-
ready raised an alarm they will no longer be evaluated in the subordinate area until you disarm the area. How-
ever, these detectors which have already tripped will not prevent the higher-ranking area (AA 4) from being re-
armed. Such detectors can, once more, raise alarm in the higher-ranking area.
Important:
- In the event of a 'global' fault signal such as mains voltage failure or an open sabotage contact of the alarm central
unit, the fault signal must be acknowledged separately in each arming area until the individual arming areas are
ready for arming again.
- Please note that both the alarm reset option and the actuated arming devices, for example, to reset an alarm will act
on other areas where they can reset signals or possibly disarm such areas.
