LX20B – Manual Page 15 / 67
Exemplary SMS is as follows (if we use public network and provide server address
as IP):
1111█SERVER=89.123.115.8█PORT=6780█APN=internet█UN=█PW=
Where:
█: space character
5. OPERATION
.A device can be configured to maintain communication via GPRS / UMTS / HSPA
network or SMS messages. Communication mode is configurable – see chapter 7.
for more information. As a result the transmitter may be used only at the territory
covered with mobile phone operator network.
If status of inputs is the same as programmed one (NO or NC) a device stays
in a rest. Change of status on any input results in immediate signal transmitting of
this event by the device.
Note:
Each device input (from IN1 till IN5) may be individually defined as on open one
(NO) or closed one (NC). It means that when in NO, input shorting will be an active
state and, a non-shorting will be an active state in NC.
To avoid an excessive cost of use related in particular to false alarms a device
possesses a programmable analysis of inputs.
All inputs respond only to states change which means that transmitting will
follow only if an active state is on input and maintains during programmed minimum
time. Maintenance of active state longer than a minimum time will result in single
indicating. Another input activation (another transmitting) is possible only after
input reached based state.
Number of messages sent in SMS mode is limited (limit includes also text massages
or answers to orders sent by user).This function provides for cost reduction by
limiting messages e.g. in case of damage of sensor connected to any input. After
passage of programmed time new messages will be sent but only in a number
determined by the user.
Text message on events sent to private phone numbers may be edited.
LX20B transmitter is equipped with input of a PSTN telephone line, and input
to connect telephone communicator module of alarm control panel.
Module constantly controls availability of an external telephone line. Decrease
of line voltage below around 5V is deemed as a line damage. If an exterior phone
line is operating, it is provided for output of telephone communicator module. If
damage of urban line follows, a module disconnects a urban line and provides a
voltage simulating telephone line to output of telephone communicator module.
Module always provides voltage corresponding to operating phone line for an alarm
control panel (namely to phone communicator module) regardless of urban line
status.
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