GSM Communication and Control System Lite GSM

GSM Communication and Control System Lite GSM
GSM Communication and Control System
Lite GSM
User Manual v1.1
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The WEEE (Waste Electrical and Electronic Equipment) marking on this
product (see left) or its documentation indicates that in the EU the product must
not be disposed of together with household waste.
Communication and control device Lite GSM (further referenced as the system)
contains an integrated radio transceiver operating in GSM900 and GSM1800
Don’t use the system where it can interfere with other devices and cause any
potential danger.
Don’t use the system in hazardous environment.
Don’t expose the system to high humidity, chemical environment or mechanical
Don’t attempt to personally repair the system
Any system repairs must be done only by qualified, safety aware personnel.
Mains power must be disconnected before any installation or tuning work starts.
The system installation or maintenance must not be done during stormy
External power supply can be connected to AC mains only inside installation
room with automatic 2-pole circuit breaker capable of disconnecting circuit in
the event of short circuit or over-current condition. Open circuit breaker must
have a gap between connections of more than 3mm.
Limited Liability
The buyer must agree that the system will reduce the risk of fire, theft, burglary or other
dangers but does not guarantee against such events.
“Orvos Monitooring OÜ” will not take any responsibility regarding personal, property or
revenue loss while using the system.
“Orvos Monitooring OÜ” responsibility according to local laws does not exceed value of
the purchased system.
“Orvos Monitooring OÜ” is not affiliated with GSM operators providing cellular services
therefore is not responsible for the quality of cellular services.
The system carries a 24-month warranty by the “Orvos Monitooring OÜ”.
Warranty period starts from the day the system has been purchased by the end user.
The warranty is valid only if the system has been used as intended, following all
guidelines listed in the manual and within specified operating conditions. Receipt with
purchase date must be kept as a proof.
The warranty is voided if the system has been exposed to mechanical impacts,
chemicals, high humidity, fluids, corrosive and hazardous environment or other force
majeure factors.
“Orvos Monitooring OÜ” reserves the right to update or modify this document and/or
related products without a warning. / [email protected]
Package Content:
1. The system Lite GSM............................ 1 pcs.
2. GSM antenna........................................ 1 pcs.
3. CD with user manual…………...............1 pcs.
About User Manual
This document describes remote communication system Lite GSM, its operation and
It is very important to read User Manual before start using the system.
A quick start guide is located in first two chapters. Chapter 3 and 4 describe additional
system capabilities.
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1. General Information
1.1 Function
1.2 Operation Description
1.3 Technical Specifications
1.4 Connector Functionality
1.5 Connection Circuit
1.6 System Installation
2. System Pre-operation and the Main Control Commands
2.1 Verification of SMS Central Number
2.2 Password Change
2.3 User Numbers
2.3.1 Saving or Changing Numbers
2.3.2 Verification of Saved Numbers
2.3.3 Deletion of Saved Numbers
2.4 Date and Time Settings
3. Additional System Capabilities
3.1 Renaming Zones and Controlled Outputs
3.2 Enabling/Disabling Zones
3.3 Info on Status SMS
3.4 Blocking Unknown Numbers
3.5 Remote Microphone Listening
3.6 Managing C1 and C2 Controlled Outputs. Timer
SMS Message Delivery to Multiple Users
4. Appendix
4.1 Restoring Default Parameters
4.2 Technical Support
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1. General Information
1.1 Function
Lite GSM is a microcontroller based device used to inform users about the alarm in
automatic or security systems and control one electric appliance -relay.
1.2 Operation Description
Communication and control system Lite GSM works over GSM network. It works 24/7,
i. e. it always reacts to the incoming signal.
When the alarm siren, motion sensor, fire alarm sensor, door sensor, any other sensor
or PGM output gets activated, Lite GSM system sends an SMS message and calls to
the preset numbers until one of the five possible users answers the phone or rejects the
call or until the call will be ended by the mobile service provider.
After hanging up the phone the system turns back to the previous status. An SMS
message with the name of the activated input (zone) is being sent until its successful
delivery to one of the users or until it is delivered to all users. If you answer the call, the
microphone gets activated for listening. After “hanging up the phone” the systems turns
back to the previous status of active security.
Lite GSM can control 1 electronic appliance (a relay) sending a password and a special
command from a GSM phone of any of the users. You can, for example, turn on the
heating, lighting, lift the gates, blinds etc.
The system will ignore requests coming from unknown telephone number or SMS
message with wrong password.
1.3 Technical Specifications
Supply voltage: 10-24V DC
Current used during the call: not more than 200mA
Current used in standby mode: not more than 50mA
GSM modem frequency: 900/1800 Mhz
Number of “low” level (negative) inputs: 4
Number of “high” level (positive) inputs: 1
Allowable “low” level (negative) input voltage values: 0-1.6V
Allowable “high” level (positive) input voltage values: 5-50V
Number of outputs: 1
Output type: NO (relay)
Output maximum commutating values: 1A/24V DC; 0,5A/125V AC
Dimensions: 82x63x20mm
Operating temperature range: -20…+55C
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1.4 Connector Functionality
Fig. No 1.
Short explanation of the main units
GSM network 900/1800MHz modem
SIM card
Light-emitting diodes indicator
Connectors (D1 and D2) for restoring default settings
GSM antenna SMA type connector
Microphone connector
Connector functionality
negative supply (earth) pin
positive supply pin (+12V)
Relay connector
Relay connector
Earth pin
“low” level input Z5
“low” level input Z4
“low” level input Z3
“high” level input Z2
“low” level input Z1
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1.5 Connection Circuit
Useful information
When choosing GSM provider, it is worth inquiring whether the service is used in
security application assuring fast and reliable SMS message delivery and phone call
To increase system reliability, it is recommended not to use prepaid SIM cards. The
system would fail to send any messages upon depletion of prepaid account. Also it is
recommended to disable call forwarding and voice mail.
System Lite GSM and security unit GND must be connected.
Inputs Z1,Z3,Z4,Z5 are connected to security unit PGM outputs if PGM are
implemented as open collector circuit or any other circuit and if it commutates with
It is also possible to connect Z1, Z3, Z4, Z5 inputs to, for instance, motion sensor or any
other sensor as well as automatics device provided the inputs are commutated with
Input Z2 is commutated with a “high level” impulse. Impulse duration is >600ms.
Fig. No 2.
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1.6 System Installation
1. Place SIM card in the holder but make sure that SIM card PIN code is disabled.
(PIN code can be disabled by putting SIM card into mobile phone and following
proper menus). SIM card should not have any remaining SMS messages.
2. Connect the circuit as shown in fig. No 2.
3. The system will start in less than a minute. LED indicator should be blinking
every five seconds indicating connection to GSM network. If the indicator is
blinking very frequently, i. e. several times a second, it is possible that SIM card
can is inserted incorrectly or PIN code request is not disabled.
2. System Pre-operation and the Main Control Commands
!!! Very Important !!!
In this manual the bottom crossed out _ means everywhere a blank, if writing SMS
messages instead of this crossed out section you must put one blank. ХХХХ designates the password. In the end of the message should not be a blank.
Call the system Lite GSM from your mobile phone and wait until the system rejects the
call. In approximately 30-60 seconds you will receive an SMS message:
“Please change the default password”
If you received this message, go to step 2.3. If you did not receive the message, change
SMS central number.
Instead of calling the system you can send an SMS message to the alarm system with
the following text:
If the telephone account is topped up and SMS central number is correct, you should
soon receive a message:
“SMS central number is correct”
If you received this message, go to step 2.3. If you did not receive the message,
change SMS central number.
New central number can be entered by sending the following SMS message:
XXXX is a password. The default password is four zeros: 0000. Ones should be
replaced with SMS central number of the provider, whose SIM card is inserted in the
system. If you do not know SMS central number, you can get it from the mobile network
E. g. 0000_ SMS_+37212345678
Message should be sent to the number of SIM card which is placed into the system. If
all went correct, the system will reply with the following message:
“SMS central number has been successfully changed to +37212345678”
It is possible to check SMS central number as long as the default password is not
changed. SMS central number is stored in SIM card, therefore if the SIM card inserted
in the security system Lite GSM was previously used in a mobile phone and SMS
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messages were successfully delivered, there is no need changing SMS central number.
Most often SIM card SMS central number is already entered by the operator.
2.2 Password Change
All SMS commands start with a password, please memorize it. Default password is four
zeros 0000, which is necessary to change.
Default password can be changed by sending the following SMS message:
To replace your password, send the following SMS message:
XXXX is any four digit number except four zeros.
Non-numerical characters like dots, colons, spaces are not allowed.
YYYY is the old system password.
If you forgot the password, default password can be restored, see chapter 4.1 for more
2.3 User Numbers
The system Lite GSM allows to pre-program up to five different mobile numbers which
will have access to and control the system. NR1 is mandatory while others can be
skipped. All numbers must be entered starting with international country code, e. g.
national code for Estonia is 372, UK – 44. Numbers should be entered based on
priority, since the system will try to contact first entered number and in case of failure
will follow with second and so on.
2.3.1 Saving or Changing Numbers
Send SMS message with the following text:
_ NR5:37255555555
Ones should be replaced with user numbers.
Numbers don’t have to be entered in sequential order right away. E. g. use can enter
first and fourth number by sending the following SMS message:
Or individually one number at a time:
Numbers can be changed same way as described above. New number will overwrite
old one, therefore no erasing is necessary.
2.3.2 Verification of Saved Numbers
To inquire the system about pre-programmed numbers, send the following SMS
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The system will reply with all pre-programmed numbers.
2.3.3 Deletion of Saved Numbers
To erase NR2-NR5, send the following SMS message:
The system will not allow erasing first number NR1. It can only be modified.
2.4 Date and Time Settings
It is important to set correct date and time so that the system can send reports at
specified times.
Date and time can be set by sending the following format SMS message:
where yyyy means year; mn - month; dd - day; hr - hour; mi - minutes
E. g. XXXX_2009.01.01_14:15
3. Additional System Capabilities
3.1 Renaming Zones and Controlled Outputs
Manufacturer initially set the following zone and controlled output names:
Zone1, Zone2, Zone3, Zone4, Zone5, CONTROLLER1
The user is free to change any of these names. The names cannot repeat or be
identical to control commands.
Zone names can be changed by sending the following SMS message:
me_Z5: NewZoneName
Names can be changed all at once or one at a time.
Maximum zone name length is 14 characters.
E. g. XXXX_Z2:PGM1
Controller name can be changed by sending the following SMS message:
XXXX _C1: NewControllerName
Maximum controller name length is 10 characters.
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3.2 Enabling/Disabling Zones
Manufacturer set all the zones activated, i. e. in mode ON.
Useful information
Few zones can be enabled/disabled together or separately one by one.
Enabling Zone
Any zone can be enabled by sending the following SMS message:
Disabling Zone
Any zone can be disabled by sending the following SMS message:
3.3 Info on Status SMS
The system Lite GSM can any time be inquired about signal strength and the status of
zones active at the time when SMS message is sent. At the same time system test is
performed. If the answer to the request has been received, it means the system finely
It is also useful for those using prepayment service – you can check if the credit in the
account is sufficient for sending an SMS message. Send the following SMS message:
The reply SMS will have following info:
E. g. 2009.08.07 11:15 Signal strength satisfactory. Z1:OK/ALARM
where OK means that the alarm in zone did not go on. ALARM – if it went ON.
By default, this status SMS message will be sent daily at 11:00 in the morning. These
parameters can be configured by sending the following SMS message:
PP – message period in days, valid values [00-10].
VV - time when message is sent, valid values [00-23].
E. g. XXXX_INFO:01.10 means that status message will be sent every 1 day at 10:00.
If PP value is 0, and VV in the range of [1-23], then periodic status messages will be
sent multiple times per day, with period being specified as VV time.
E. g. XXXX_INFO:0.2 means that status message will be sent every 2 hours.
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To disable periodic status messages send the following SMS message:
The status messages will not be sent until enabling or restoring default parameters or
receiving previously described XXXX_INFO:PP.VV SMS message.
3.4 Blocking Unknown Numbers
By default Lite GSM system can be controlled from any of the pre-programmed
numbers NR1-NR5. However, the user can access the system and control parameters
and outputs from any number as long as password is known.
To enable this feature send the following SMS message:
To disable this feature send the following SMS message:
3.5 Remote Microphone Listening
To enable this feature it is necessary to connect microphone connector to MIC slot. The
microphone is additional equipment and can be purchased separately.
You can listen to what is going on in the secured premises by sending the following
SMS message:
The system will call back the sender of the received SMS, and upon answering the call,
the user can listen to any sounds in the building. The phone call must be answered
within 20 seconds otherwise the system will stop trying and return to previous state.
3.6 Managing C1 Controller. Timer.
Alarm system Lite GSM contains a controller C1- a relay output REALAY. It can be
used to control various electrical devices such as electric pumps, heating, lighting etc.
When the controller is enabled RELAY connectors are connected.
The device is turned on by sending the following SMS message:
The device is turned off by sending the following SMS message:
Instead of C1 it is also possible writing a real controller name.
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Alarm system Lite GSM has internal timer clock. This feature allows any output
controlled output to be switched on or off for a specified time period. The following SMS
command should be sent:
ON – output enabled. OFF – disabled
hr – hours, valid values [00-24]
mi – minutes, valid values [00-60]
ss - seconds, valid values [00-60]
It is not allowed to have all values equal zeros. Zeros it is not allowed to have all values
E. g. to switch the pump on for 01 minutes and 23 seconds, send SMS
If the pump was enabled before and user want to disable it for 01 minute and 23
seconds, send SMS XXXX_PUMP:OFF:00.01.23
3.7 SMS Message Delivery to Multiple Users
Upon activated alarm in security system Lite GSM SMS messages are repeatedly sent
until first successful delivery to one of the users. The system starts with NR1 and if
delivery fails, it follows with NR2 etc.
It is also possible to set the system so that it sends SMS message to all recorded users.
To enable this function send the following SMS message:
To disable this function send the following SMS message:
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4. Appendix
4.1 Restoring Default Parameters
To restore default parameters:
1. disconnect power supply
2. short circuit (connect) connectors D1 and D2
3. connect power supply for several seconds
4. disconnect power supply
5. disconnect connectors D1 and D2
4.2 Technical Support
Indicator is off or not blinking
Indicator blinking several times
per second
System does not send any SMS
messages and/or does not ring
Received SMS message
“Incorrect Format”
No sound while listening to
remote microphone
While listening to remote
microphone outside noise heard
Possible reason
no external power supply
circuit not properly connected
blown fuse
no network signal
SIM card is not inserted
PIN code hasn’t been disabled
Sim card not active
SIM card account depleted
incorrect SIM central number
no network signal
user number is not programmed
(or disabled access from unknown
incorrect syntax
extra space symbol left in SMS
microphone not connected
microphone connection incorrect
Change the position of the
microphone or its lead in respect of
system panel
If your problem could not be fixed by the self-guide above, please contact your
distributor or tech support by email [email protected]
More up to date information about your device and other products can be found at the
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