EIB Alarm Central Unit, surface-
mounted
75730010
Technical
Documentation
© Gebr.Berker 2005
Version: 18.08.2005
Page: 57 / 81
(Subject to prior change)
75730010.doc
Part 9
10. Date/Time
The alarm central unit needs the current time and the current date to mark all events with a "time stamp" and to save
them in the event log.
It has two EIB objects, "time" and "date", through which, for example, an EIB-DCF77 receiver can transfer time sig-
nals (EIS 3) and date signals (EIS 4), thus setting the internal clock of the alarm central unit.
As an alternative to the use of an external time transmitter, you can download the current PC time and the current PC
date into the internal clock of the alarm central unit from the ETS plug-in under "configuration/PC date and time".
The internal clock of the alarm central unit runs independently with a time error of better than 2 minutes per month
and a power reserve of at least 12 hours should the bus voltage fail. The internal clock is not powered by the storage
battery. Changing from summer to winter time and vice versa will be done automatically.
11. Bus Voltage Failure/Bus Voltage Recovery
11.1
Bus voltage failure
You can parameterize the response of the alarm central unit to bus voltage failure. If a bus voltage failure occurs or
while the device is being programmed, the green "Betrieb" (device ON) LED will be blinking.
You can use jumper J1 to set the response to bus voltage failure while the system is in its armed state.
J1
J1
1
2
Position 1
The "flashlight" (Blitz), "outdoor siren" (180 s), "fault signal to the ATD and
"intruder signal to the ATD" wired outputs will be triggered immediately.
Position 2
Only the "fault signal to the ATD" wired output will be triggered immedi-
ately.
It is possible that an alarm in one of the arming areas has been raised in the armed state before the bus voltage fail-
ure occurred, and that the alarm central unit has activated some wired alarm indicators. In such case, the "outdoor
siren", "indoor siren" alarm indicators and the "relay contact" will, in the event of a bus voltage failure, be automatically
deactivated 180 s after the occurrence of the bus voltage failure.
The wired detector input and the wired resistor sabotage loop will also be evaluated if a bus voltage failure occurs and
if only one arming area was in the armed state before such failure. Thus, if a detector input is open (regardless of
which area you have assigned the same to from the ETS plug-in) or in the event of sabotage, the "flashlight" alarm
indicator and the "ÜG-E" terminal contact will be triggered and the "outdoor siren" switched on or re-triggered, respec-
tively.
The wired detector input cannot be assigned to the "fire detector" or "attack detector" areas and will consequently not
raise any alarm in configuration 1.
Important:
All alarms raised during a bus voltage failure will only remain active until the bus voltage has recovered (exception:
alarming before a bus voltage failure).
When the system is in the disarmed state, a fault signal will be exclusively issued through the alarm transmission
device ("ÜG-S" terminal) after a fixed time of 60 seconds for the period of the bus voltage failure.
Such fault will not be saved and passed forward by the alarm central unit after bus voltage recovery.
Detector states and fault signals will not be saved in the event of bus voltage failure.
