System Faults; Fault Caused By Loss Of A Device - jablotron JA-101K Manual

8.6

System faults

A fault is a warning signal from the system which indicates some abnormal state of the control panel,
communication or devices. The problem can be related to radio, GSM and LAN communication, masking
the detectors (with an antimasking function), problems with power (mains power or battery) or the back-up
power supply. Fault(s) is/are optically indicated on system keypads by the backlit indication button.
Fault reporting is taken from every source and with the 4
which means that the 4
see the Parameters tab.If enabled, no faults are counted and there is no limitation of their reporting.
The parameter is not available when the "Default" system profile is set.
In the following table there is an overview of general system faults:
Fault source
Mains power disconnected more than 30 minutes
Control panel
Faulty or low back-up battery in the control panel
Loss of LAN connection, GSM signal lost or fault of PSTN line minimum 15 minutes
Communicator
Event(s) not delivered to the ARC in a given time
Jamming of 868 MHz radio band
Radio module
BUS communication loss
Keypads
Sirens
Radio or BUS communication loss (see chapter 8.7)
Modules
Masking of motion detectors (Antimasking)
Detectors
Internal detector fault (gas leakage detector)
Fault cause by reducing IR ray intensity (infra barrier)
8.7

Fault caused by loss of a device

Every device (BUS or wireless) in the system is supervised by the control panel when the Supervision
parameter is enabled (see Parameters tab/ Supervision column) and communication with the control panel
is lost (no response within a pre-set time) then the system triggers the event "Fault activation" and according
to the "Loss of a BUS device" it can be followed by a tamper alarm. It is optional and can be triggered when
the radio module detects RF jamming or some kind of RF interference which takes a minimum 30 sec at
2 detection levels. And it can also trigger a tamper alarm when a short circuit occurs on the system BUS which
avoids proper the communication of BUS devices. The communication time-out is a fixed time and cannot be
changed. For BUS devices it is 8 sec and for wireless 120 min from the last communication.
The "Supervision" function is optional for almost all wireless devices meant for guarding (detectors, sirens,
keypads), for some of them it is disabled completely (remote controllers and automation appliances) and for
instance for some BUS devices it is always enabled with no option to be disabled.
An option which changes the control panel reaction to the loss of BUS devices is called "Loss of a BUS
device", see F-Link software, Parameters tab. It offers the following options:
Fault – the control panel always processes the loss of a device on the BUS or a short circuit of the BUS
just as a Fault
Tamper always – the control panel processes the loss of a device on the BUS or a short circuit of the
BUS as a tamper alarm always when it occurs. If the radio module has RF jamming detection allowed and
it is really detected, then it also triggers a tamper alarm. A tamper alarm is also followed by a fault and
when the fault disappears, it cancels the tamper alarm as well.
Tamper after confirmation – the control panel processes the loss of the first device as a fault and if
within a pre-set time given by the parameter "Period of waiting for alarm confirmation" another device loss
occurs, then the system confirms it and triggers a tamper alarm. When the fault of all the lost devices is
restored then the system cancels the fault and tamper alarm.
JA-101K(-LAN)(-LAN3G) and JA-106K(-3G)
Security System Control Panels
th
fault is not reported. This automatic fault blocking is an optional parameter,
th
fault activation the source of the fault is bypassed
Cause
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