Legato SMS Basic User manual

GSM SMS Alarm Messenger
Version 7
SMS Basic GSM SMS alarm messenger
SMS Pro GSM SMS alarm messenger
SMS Pro-X GSM SMS alarm, voice & data messenger
SMS Pro-SX GSM SMS alarm messenger [Temperature & Humidity Sensor]
SMS Pro-ST GSM SMS alarm & data messenger [2 x Temperature Sensor]
Features Basic Pro Pro-X Pro-XQ Pro-SX Pro-ST
Alarm Input 8 8 8 8 8 8
Relay Output 1 3 3 3 3 3
Phone Number 10 10 10 10 10 10
Low Voltage Alert 999999
Program by SMS 999999
Program by PC Software 999999
Voice 999999
AD Channels - - 2 2 1 0
AD Hi/Lo Alert - - 9999
Temperature Sensor - - - - 1 2
Humidity Sensor - - - - 1 -
Temp Hi/Lo Alert - - - - 99
Humidity Hi/Lo Alert - - - - -
9
GSM Band (MHz) 900/1800 900/1800 900/1800 900/1800
850/1900 900/1800 900/1800
Revision 100924 [v7.1B]

GSM SMS Alarm Messenger SMSPro (Version 7)
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CONTENT
1. OVERVIEW 3
2. CONNECTION 5
3. INSERTING SIM CARD 6
4. TEMPERATURE SENSOR [PRO-ST] 7
5. EXTERNAL TEMPERATURE & HUMIDITY SENSOR [PRO-SX] 8
6. SCHEMATIC DIAGRAM 9
7. PC SETUP SOFTWARE 12
8. QUICK STARTUP 13
9. ALARM TRIGGER RESPONSE TIME 13
10. GSM NETWORK CONNECTIVITY 13
11. COMMAND LIST 14
12. DEAD LOOP PROBLEM 40
13. POWER LOSS & RESUME 41
14. SAFETY AND REGULATORY NOTICE 42
15. MANUFACTURER’S DISCLAIMER STATEMENT 43

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1. Overview
a. Introduction
SMS Pro is integrated with a 16 bit MCU and reliable Siemens MC39i GSM module.
b. Application
Industrial equipment monitoring
Data capturing
Rural Security
Car Security
Intelligent Home Security
Large scale area monitoring e.g. Power Plant
c. Features
;Operates in GSM covering zones, phone alarm dial & SMS alarm message
;Keep the last 10 SMS alarm messages when sending SMS failed
;Resend the last 10 failed SMS when GSM network resumes normal
;Health Status report by GSM mobile phone or PC (RS232)
;Configuration setup by GSM mobile phone or PC (RS232)
;Arm/Disarm by GSM mobile phone
;8 x Alarm Inputs triggered by N/C, N/O or State Change
;2 x AD channels with user programmable Alert High & Alert Low level
;3 x Relay Outputs, NC/NO activated by alarm input or SMS manually
;8 x Mobile/Fixed Phone Number + 2 x control centre number
;Alarm Alert Modes – SMS, Phone Dial or SMS & Phone Dial
;System status reporting in Automatic, Schedule or Alarm triggered modes
;Central Station monitoring number for Server connected with GSM Modem
;Sound monitoring upon microphone connected
;Each alarm input is associated with independent SMS alarm text
;SMS alarm message text user programmable
;Independent SMS message for close & open triggered alarms
;Schedule power supply voltage level checking
;Automatic reporting on low power voltage level
;Reply message verifying the receipt of each command
d. Safety
yDo not touch the antenna
yGSM 900MHz, 2W max.
yGSM 1800MHz, 1W max.
yNot designed for medical equipment or aerospace application

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e. Electrical Specification
Operating Voltage DC7~15V
Current 500mA (SMS Send/Receive)
10mA (standby)
Peak Pulse Current < 1A
Dimension 135 x 105 x 25 mm
Operating Temperature -25°C ~ 55°C
Weight 600g
RS232 9600bps, 8 Data Bits, None Parity, 1 Stop Bit
f. Antenna Requirement
GSM 900 GSM 1800
RF Frequency 925~960MHz 1805~1880MHz
TX Frequency 880~912MHz 1710~1785MHz
RF Rating 2W 12.5% Loop Loading 1W 12.5% Loop
Loading Resistance 50Ohm
Radiation S/N 0dBi
Note: GSM850/900/1800/1900MHZ is available in US or worldwide version [Pro-Q]
g. Operation

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2. Connection
Sound Monitoring
SMS Pro automatically picks up any phone call after 8
rings. It rejects any call not from alarm phone number.
By connecting the microphone, mobile phone user can
talk to the SMS Messenger.
LED1 green [GSM Signal]
Flashing Off > On duration
* GSM Module Normal Operation
Flashing Same On/Off duration
* GSM Network Connection Problem
Reason:
Antenna not connected
No SIM Card
Defective SIM Card
GSM Module Defect
LED2 red [Operation Status]
On
* Normal
Flash
* Searching GSM Network
* Connecting GSM Network
* Receiving SMS messages
* Sending SMS messages
* Phone dialing
RS232 Pin Assignment Connecting to PC
9600bps, 8bit, No Parity, 1 Stop
Pin 2 RXD
Pin 3 TXD
Pin 5 GND

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3. Inserting SIM card
Press the yellow button to release the SIM
card caddy as shown below.
Make sure that the golden
contact is facing down when
inserting the SIM card caddy.
n
o
p

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4. Temperature Sensor [Pro-ST]
2 x External temperature sensors are supplied with 1m cable. Cable can be extended
up to max. 100 meter.
Temperature Sensor: DS18B20
Temperature Range: -50 ~ 125°C
Accuracy: 0.1°C
AD Channel: 2
High Temperature SMS Alert
Low Temperature SMS Alert
Cable Color Code

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5. External Temperature & Humidity Sensor [Pro-SX]
External temperature & humidity sensor is supplied with 1m cable. Cable can be
extended up to max. 100 meter.
External Temperature Sensor
Temperature Range: -50 ~ 125°C
Accuracy: 0.1°C
AD Channel: 2
High Temperature SMS Alert
Low Temperature SMS Alert
External Humidity Sensor
Humidity Range: 0 ~ 100%RH
Accuracy: ±5%RH
AD Channel: 1
High Humidity SMS Alert
Low Humidity SMS Alert
NOTE: Humidity Sensor must be installed upwards.
External
T
em
p
erature & Humidit
y
sensor
Cable Color Code

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Relay Output jumper
1 2 3

1-2 Short Normal Close
2-3 Short Normal Open (Default)
6. Schematic Diagram
The relay on/off start up status is
determined by the jumper setting.
The relay will resume its start up status
when power is off.
POW Power Input, DC7~12V
GND Power Ground
5VDC Power Output, DC5V [power supply for external sensor]

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1) Alarm Input
Input: 12VDC, 7 ~ 15mA, Opto-isolated Inputs (1KΩInput Resistance)
24VDC, resistor 1~2.2KΩshould be used in serial
(a) IN1, IN3, IN4, IN5, IN6, IN7, IN8
Alarm Input: DC12V 7~15mA, GND: Common Ground
(b) IN2+, IN2-
IN2+: DC5~12V
IN2-: Ground [It must NOT be common to the GND of the board]
2) Relay Output
OUT1, OUT2, OUT3 Max. 1A, 24VDC, 1A, 120VAC
NC/NO (selected by jumper on board)