Maestro 100 Series
GSM/GPRS Modems
Eco – Lite – Extended
USER MANUAL
Rev. 01
www.maestro-wireless.com Email: contact@maestro-wireless.com
Tel: 852 2869 0688 Fax: 852 2525 4701
Address: Room 3603-3609, 36/F , 118 Connaught Road West, Sheung Wan, Hong Kong
REVISION HISTORY
Rev. Date Details Originated by
00 01 Mar 2007 First release Wallace Lee
01 30 Jan 2008 Second release Cecile Lin
This manual is written without any warranty.
Maestro Wireless Solution Ltd.
and its accessories which can also be withdrawn without prior notice.
Besides, our company stresses the fact that the performance of the product as well as
accessories depends not only on the proper conditions of use, but also on the
environment around the places of use.
Maestro Wireless Solution Ltd.
indirectly from errors, omissions or discrepancies between the modem and the
manual.
reserves the right to modify or improve the product
assumes no liability for damage incurred directly or
Confidential, the whole present document is the sole property of Maestro Wireless
Solution Limited.
1
TABLE OF CONTENTS
REVISION HISTORY................................................................. 1
SAFETY PRECAUTIONS............................................................. 3
Using the modem in vehicle................................................... 3
Protecting your modem......................................................... 3
CHAPTER 1: Introduction .........................................................4
1. Package .......................................................................4
2. Interfaces..................................................................... 4
a. Status indicator......................................................4
b. SMA female antenna connector................................. 4
c. 15-Pin D-Sub Female connector (RS232/Audio) .......... 5
d. 4-Pin connector (Power input/output)........................5
3. Optional accessories ...................................................... 6
CHAPTER 2: INSTALLATION......................................................8
1. Mounting the modem..................................................... 8
2. Install the SIM card ....................................................... 8
3. Connect the external antenna (SMA type)......................... 8
4. Connect the modem to external device.............................9
5. Connect the DC power supply.......................................... 9
CHAPTER 3: WORKING WITH MAESTRO 100............................. 10
1. Checking the modem (using Microsoft Windows XP
HyperTerminal as example)............................................... 10
2. Basic operation ........................................................... 12
CHAPTER 4: SPECIFICATIONS................................................. 13
CHAPTER 5: APPENDIX .......................................................... 14
1. Factory settings........................................................... 14
2. Input/Output port........................................................ 14
3. RS232 Auto-online mode (power saving) ........................ 14
CHAPTER 6: TROUBLESHOOTING ............................................ 15
1. The modem’s LED does not light.................................... 15
2. The modem’s LED lights but does not blink long time after
power up........................................................................ 15
3. The modem does not respond to the terminal program..... 15
4. No voice could be heard for the modem’ s speaker output when
a call is answered............................................................ 15
Confidential, the whole present document is the sole property of Maestro Wireless
Solution Limited.
2
SAFETY PRECAUTIONS
The modem generates radio frequency (RF) power. When using the modem care
•
must be taken on safety issues related to RF interference as well as regulations of
RF equipment.
Do not use your phone in aircraft, hospitals, petrol stations or in places where
•
using GSM products is prohibited.
Be sure that the modem will not be interfering with nearby equipment. For
•
example: pacemakers or medical equipment. The antenna of the modem should
be away from computers, office equipment, home appliance, etc.
An external antenna must be connected to the modem for proper operation. Only
•
used approved antennas with the modem. Please contact authorized dealer on
finding an approved antenna.
Always keep the antenna with minimum safety distance of 26.6 cm or more from
•
human body. Do not put the antenna inside metallic box, containers, etc.
Using the modem in vehicle
Check for any regulation or law authorizing the use of GSM in vehicle in your
•
country before installing the modem
Install the modem by qualified personnel. Consult your vehicle dealer for any
•
possible interference of electronic parts by the modem.
The modem should be connected to the vehicle’s supply system by using a
•
fuse-protected terminal in the vehicle’s fuse box
Be careful when the modem is powered by the vehicle’s main battery. The battery
•
may be drained after extended period.
Protecting your modem
To ensure error-free usage, please install and operate your modem with care. Do
•
remember the following:
Do not expose the modem to extreme conditions such as high humidity/rain, high
•
temperatures, direct sunlight, caustic/harsh chemicals, dust, or water.
Do not try to disassemble or modify the modem. There is no user serviceable part
•
inside and the warranty would be void.
Do not drop, hit or shake the modem. Do not use the modem under extreme
•
vibrating condition.
Do not pull the antenna or power supply cable. Attach/ detach by holding the
•
connector.
Connect the modem only according to the instruction manual. Failure to do it will
•
void the warranty.
Confidential, the whole present document is the sole property of Maestro Wireless
Solution Limited.
3
CHAPTER 1: Introduction
Maestro 100 is a ready-to-use GSM modem for voice, data, fax and SMS
services. It also supports GPRS Class 10 for hi-speed data transfer (except Maestro
100 Eco). Maestro 100 can be easily controlled by using AT command for all kinds of
operations. With standard 9-pin RS232 port and telephone-like audio plug (via optional
cable) the Maestro 100 can be set up with minimal effort.
1. Package
The Maestro 100 package should include the following:
- Maestro 100/Ext/Eco/Lite x 1
- Power cord with fuse x 1
- Safety note x 1
2. Interfaces
SIM holder eject button Status indicator
SIM holder
SMA female antenna
connector
a. Status indicator
The LED will indicate different status of the modem:
OFF Modem is switched off
•
ON Modem is connecting to the network
•
15 pin Sub-D Female Connector
(RS232/Audio)
4-PIN connector
(Power input/output)
Flashing slowly Modem is in idle mode
•
Flashing rapidly Modem is in transmission/communication (GSM only)
•
b. SMA female antenna connector
Connect this to an external antenna with SMA male connector. Make sure the
antenna is for the correct GSM frequency with impedance of 50ohm, and also
connector is secured tightly.
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Solution Limited.
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c. 15-Pin D-Sub Female connector (RS232/Audio)
The connector provides serial link and audio link to the modem
Pin number Name EIA designation Type Note
1 DCD Data Carrier Detect Output
2 TX Transmit Data Input
3 BOOT Input Not used
4 MICROPHONE (+) Input
5 MICROPHONE (-) Input
6 RX Receive Data Output
7 DSR Data Set Ready Output
8 DTR Data T erminal R eady Input
9 GND Ground Ground
10 SPEAKER (+) Output
11 CTS Clear To Send Output
12 RTS Request To Send Input
13 RI Ring Indicator Output
14 RESET Input Pull low to reset
15 SPEAKER (-) Output
With 2VDC bias
output
Specification of microphone and speaker to be connected:
Parameters Min Typical Max Remark
Microphone current @2V/2K Ohm 0.5mA
Microphone input level 100 mVpp
Speaker output current 150 Ohm/1nF 16mA
Speaker impedance 32ohm 50Ohm
Please refer to the document "Application notes - Power supply & Audio" for more
information about audio connection.
d. 4-Pin connector (Power input/output)
A cable, included in the package shall be used for power supply connection:
Pin assignment of 4-Pin connector
Pin number Name Functions
1 I/O Input/Output port
2 ~INTR Interrupt function triggered by pulling this
pin to ground or LOW level; reserved for
additional functions with new firmware
3 POWER - DC power negative input
4 POWER + DC power positive input
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Solution Limited.
5
0
A cable, included in the package shall be used for power supply connection:
5-32V DC
Supply
Connector Micro-Fit 3.
Fuse holder
Fuse rating:
–
Stripped wire
3. Optional accessories
You may contact your sales agent for the following optional accessories:
External antenna
- Magnetic mount type
- Frequency GSM 900/1800 band
- Gain 3db
- VSWR < 1.5:1
- Height ~ 236 mm (including magnetic base)
- Cable: Ty pe RG-174U length 2.5m
‘Y’ cable
- Direct connection with standard 9-pin
RS-232 port (DTE)
- Direct connection with common
handset of telephone for voice call
- Shielded cable
- Cable length 1.1m (w/connector)
Sub-D 9 pin
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4p4c plug
Solution Limited.
6
Pin assignment
Sub-D 15 (male) Sub-D 9 (female) Plug 4P4C
1 1
2 3
3
4 1
5 4
6 2
7 6
8 4
9 5
10 2
11 8
12 7
13 9
14
15 3
• Quick attachment / detachment
• Zinc plated Steel
DIN rail mount
to standard DIN rail
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Solution Limited.
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CHAPTER 2: INSTALLATION
1. Mounting the modem
Use 2 pieces of M3 screw to mount the modem. When using optional DIN rail mount,
please refer to document "Installation of DIN rail mount".
Screw mounting slot
Bottom view
2. Install the SIM card
Use a ball pen or paper clip to press the SIM holder eject button. The SIM holder will
come out a little. Then take out the SIM holder.
Note: DO NOT pull out the SIM holder without pushing the ejector button.
Put the SIM card to the tray; make sure it has completely sat on the tray. Put the tray
back into the slot.
3. Connect the external antenna (SMA type)
Connect this to an external antenna with SMA male connector. Make sure the antenna
is for the GSM frequency with impedance of 50ohm, and also connector is secured
tightly.
Note: Please use antenna designed for GSM device operation. Incorrect antenna will
affect communication and even damage the modem.
SMA male connector
of antenna cable
Secure tightly
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Solution Limited.
8
o
4. Connect the modem to external device
You can use the optional 'Y' cable to connect the modem's Sub-D connector to
external controller/computer. Note: The modem CANNOT be directly connected to the
'LINE' jack of a landline telephone.
Connection example using optional 'Y' cable:
4p4c
plug
Handset of phone
Maestro
100
Sub-D 15 pin
connector
DB-9
c
nnector
RS-232 port of PC
5. Connect the DC power supply
Connect the open ending of the inducted power cord to a DC supply. Refer to the
following for power supply requirement.
Input voltage range 5V – 32V
Rated current 650 mA
AC-DC Adaptor
or battery
(Not included)
Solder wire
endings
Connect the connector to the modem. The modem will turn on automatically.
The status indicator on the modem will be lit when power on. After a few seconds it will
go flashing slowly (registered to the network successfully refer 1.2.1).
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Solution Limited.
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CHAPTER 3: WORKING WITH MAESTRO 100
1. Checking the modem (using Microsoft Windows XP HyperTerminal as example)
a. On the first time power-up you can use terminal software to
communicate with the modem through an RS232 serial port. Following
example is using the HyperTerminal in Windows XP.
b. On Windows XP, start the HyperTerminal program. Assign a name for a
new session.
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Solution Limited.
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c. Choose the correct Com port and baud rate settings (9600bps for Eco;
115200bps for others, 8bits, no parity bit, 1 stop bit)
d. On the terminal screen, type "AT" to check the "OK" response from the
modem
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Solution Limited.
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2. Basic operation
Followings are examples of some AT commands. Please refer to the AT command
document for a full description.
Note: Issue AT+CMEE=1 to have extended error code (+CME ERROR)
Description AT commands
Network
registration
checking
Receiving
signal strength
Receiving an
incoming call
Make a call
Make an
emergency call
Communication
loss
Enter PIN code
parameters in
non-volatile
memory
AT+CREG? CREG=<mode>,1 Modem registered to the
CREG=<mode>,2 Registration lost,
CREG=<mode>,0
AT+CSQ +CSQ:20,0 The first parameter has to be
RING An incoming call is waiting
ATA Answer the call
OK
ATD1234567; Don’t forget the “;” at the
OK Communication established
CME ERROR : 11 PIN code not entered (with
CME ERROR : 3 AOC credit exceeded or a
ATD 112; Don’t forget the “;” at the
OK
NO CARRIER
ATH Hang up
OK
AT+CPIN=1234
OK PIN Code accepted
+CME ERROR : 16 Incorrect PIN code (with
+CME ERROR : 3 PIN already entered (with
AT&W Saves
OK The configuration settings
Modem
response
Comments
network
re-registration attempt
Modem not registered on the
network, no registration
attempt
at least 15 for normal
communication
end for “voice” call
+ CME = 1 mode)
communication is already
established
end for “voice” call
+CME = 1 mode)
+CME = 1 mode)
are stored
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Solution Limited.
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CHAPTER 4: SPECIFICATIONS
• Quad Band GSM 850 / 900 / 1800 /1900 MHz
• Support Data, SMS, Voice and Fax
• Max power output: 2W(900MHz), 1W(1800MHz)
• Group 3 FAX support (Class 1 and 2)
• GPRS Class B class 10 (4Rx+1Tx or 3Rx+2Tx) at maximum speed* (not
applicable for Maestro 100 Eco)
• SIM Tool Kit Class 2
• AT command set (GSM 07.05, GSM 07.07 and WAVECOM proprietary)
*Note: available slot for GPRS connection is network dependent.
Power requirements:
Input voltage range 5V - 32V
Rated current 650 mA
Typical current consumption:
@5V @12V @32V
GSM850 communication mode PCL5 310mA 130mA 50mA
EGSM900 communication mode PCL5 310mA 130mA 50mA
DCS1800 communication mode PCL0 240mA 100mA 40mA
PCS1900 communication mode PCL0 240mA 100mA 40mA
GPRS 850 Class 10^ 520mA 220mA 80mA
GPRS900 class 10^ 520mA 220mA 80mA
GPRS1800 class 10^ 390mA 160mA 70mA
GPRS1900 Class 10^ 390mA 160mA 70mA
Idle mode 35mA 16mA 8mA
Idle mode with power saving 12mA 11mA 5mA
^Note: Not applicable to Maestro 100 Eco
Interfaces:
• SIM Holder
• 15 pin sub-D connector
• 4 pin power supply connector
• SMA antenna connector (50 Ohm)
Dimensions
• Overall size: 88mm x 60mm x 26mm
• Weight: 100g
• Temperature range: Operating: -30°C to +75°C (Ext model)
-20°C to +55°C (Other models)
Storage: -40°C to +85°C (Ext model)
-25°C to +70°C (Other model)
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Solution Limited.
13
CHAPTER 5: APPENDIX
1. Factory settings
The modem has the following factory settings. Please refer to the AT command
document for the meaning of each setting.
Related AT commands Factory settings Description
AT+IPR 115200 (9600 for Eco) DTE-DCE data rate
AT+IFC 2,2 DTE-DCE flow control
AT+ICF 3,4 DTE-DCE character framing
ATE 1 ECHO
AT&C 1 DCD signal
AT&D 2 DTR signal
ATQ 0 Result code suppression
ATV 1 Response format
AT&S 1 DSR signal
ATS0 0 Auto answer
AT+CLIP 0 Calling line ID presentation
AT+CRLP Calling line ID restriction
AT+CSCS “PCCP437” Character Set
AT+CMGF 1 Short message format
AT+CSMP 1,67,0,0 Test mode parameters*
AT+CNMI 0,1,0,0 New message indication*
*Note: settings stored in SIM, not in modem
2. Input/Output port
This port can be configured as either an input one or an output one.
To configure it as an input port, first issue AT+WIOW=2, 0 to disable the output port.
Use AT+WIOR=3 to read the status of this input port. Response +WIOR: 0 represent
Logic HIGH (>3V); Response +WIOR: 1 represent Logic LOW (<0.5). To use it as an
output port, issue AT+WIOW=2,1 will turn it on and it will drain current to ground. The
current is recommended not to exceed 5mA. Issue AT+WIOW=2,0 will turn it off.
3. RS232 Auto-online mode (power saving)
When being in the auto-online, the RS232 transceiver will shut down most of its
hardware to save power is it does not detect a valid input for more than 100uS. The
RS232 transceiver will wake up when valid input is detected again.
By default, the RS232 transceiver is put in auto-online. This mode can be turned off by
issuing AT+WIOM=,16.
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Solution Limited.
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CHAPTER 6: TROUBLESHOOTING
1. The modem’s LED does not light
Check if the modem has been properly connected to a 5 - 32V power supply
Check if the power connector is properly inserted
Check the fuse on the power cord
2. The modem’s LED lights but does not blink long time after power up
Check if a valid SIM card has been properly inserted
Check if the SIM card has been locked (refer to AT+CPIN command in AT command
guide)
Check if the external has been properly connected to the modem
Check if the network coverage is available
3. The modem does not respond to the terminal program
Check if the RS232 cable has been properly connected
Check if your program has proper settings. Factory setting of the modem is:
115200 (9600bps for Maestro 100 Eco)
8 data bits
No parity bit
1 stop bit
4. No voice could be heard for the modem’s speaker output when a call is answered
Make sure a voice call has been made (refer to AT command guide)
Enter the AR+SPEAKER=1 command
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Solution Limited.
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