Bedienungsanleitung Elro HA68S (Seite 7 von 34) (Englisch)

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JAMMING DETECTION

In order to detect any attempts to illegally jam the radio channel used by your

alarm system, a special jamming detection function is incorporated into the

Control Panel and Solar Siren. If this feature is enabled, and the radio channel is

jammed continuously for 30 seconds, when the system is armed, the Solar Siren

will emit a pre-alarm series of rapid bleeps for 3 seconds. If the jamming

continues for a further 10 seconds or more a full alarm condition will occur. In

addition if the system is jammed for more than three periods of 10 seconds in a

5 minute interval, this will also generate a Full Alarm condition.

The jamming detection features in the Control Panel and Solar Siren operate

independently.

The Jamming Detection circuit is designed to permanently scan for jamming

signals. However, it is possible that it may detect other local radio interference

operating legally or illegally on the same frequency. If it is planned to operate

the jamming detection feature we recommend that the system is monitored for

false jamming alarms for at least 2 weeks prior to leaving the Jamming

Detection function permanently enabled.

BATTERY MONITORING

In addition to the battery monitor and low-battery indicators in each device, the

Control Panel will also indicate a low battery status within any Passive Infra-Red

or Magnetic Contact Detector on the system using the Event log.

Press to Listen-In via the Control Panel Microphone.

Press to stop Listen-In

Note: Listen-in will be automatically cancelled after 5 minutes if not cancelled

manually.

Press to interrogate the system status. A message playing the latest

status can be heard.

Press to show the battery status.

Press to end the remote system control and hang up the Control Panel

line.

BATTERY MONITORING

All system devices continuously monitor their battery condition. The Control

Panel also monitors the battery condition of all PIR and Magnetic detectors. If

the battery level of any device drops below acceptable levels then its low battery

indication will be activated. In addition if any PIR or Magnetic Contact detector

has a low battery status it will be recorded by the Control Panel and a message

stored in the event log.

In the event of AC adaptor being disconnected from the Control Panel, the

Control Panel by consuming the DC rechargeable battery can sustain 2 days of

normal operation (under standby mode). However, the battery for that device

should be replaced as soon as possible.

Note: Before removing the battery cover on any device to replace the battery

ensure that the system is put into Test mode to avoid initiating a Full Alarm

condition.

The low battery indication for each system component is as follows:

CONTROL PANEL

During a period of mains supply interruption the Control Panel will be powered

by the rechargeable backup batteries. Under normal battery conditions the

Power LED on the panel will flash at 1s intervals. Under low battery conditions, if

setting to the voice dialer mode, a pre-recorded message will be played once

after one hour. If setting to the digital dialer mode, a radio signal will be emitted

to the central monitoring station right away and send the signal again after 4

hours.

REMOTE CONTROL

When the Remote Control is operated under low battery conditions the transmit

LED will continue to flash after the button has been released.

Under normal battery conditions the LED will extinguish when the button is

released.

ENEN

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