2.3.5 Input/output electrical characteristics defined for all external connections6
2.3.6 Protection/on-board network connection6
3. DESCRIPTION OF THE INTERFACES7
3.1 LED Function7
3.2 Connectors7
4. TECHNICAL DATA11
Wavecom WMO2 Modem
SUMMARY
GUIDE19/04/99, 9:202
5. TROUBLESHOOTING: Specific defaults possibly encountered12
5.1 The modem does not answer through the serial link12
5.2 The modem always returns «Error» when trying to issue a communication13
5.3 The modem always returns «No carrier» when trying to issue a communication14
6. NOTES ON SAFETY16
6.1 General safety16
6.2 Vehicle safety17
6.3 Car And Maintenance17
6.4 Your responsibility18
7. GENERAL INFORMATIONS19
SUMMARY
Wavecom WMO2 Modem
GUIDE19/04/99, 9:203
1. PRODUCT DESCRIPTION
r
The Wavecom WMO2 modem exist under three different references:
- WMO2-G900: GSM 900 MHz version
- WMO2-G1800 : GSM 1800 MHz version
- WMO2-G1900 : GSM 1900 MHz version
1.1Package content
The Wavecom WMO2 modem package comprises:
- 1 Modem
- 2 holding bridles
- 1 Power supply cable + fuse
- 1 User manual (this document)
1.2Product presentation
The Wavecom WMO2 modem is a terminal for fax and data transmission, short message service mobile originated, short
message service mobile terminated and voice calls.
The connectors binded to the body guarantee output and input connections.
An extractible holder is used to insert the SIM card (Micro-SIM type). A LED indicates the operating mode.
Operating conditions :From -20°C to +55° C
Storage conditions:From -25°C to +70°C
Wavecom WMO2 Modem2
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GUIDE19/04/99, 9:205
2 INSTALLATION/START-UP
2.1Mounting the modem
For mounting the modem, bind to the body the holding bridles according to the schema below:
Note:
- T o be attached to a plain surface
- Screw head max. height: 2mm
Holding bridles
Figure 2
Modem mounting
2.2Installing the modem
mm
2
mm
2
To install the modem, plug the device on a DC power supply (for automotive application,
connect the device on the permanent « + » and insert the SIM card in the holder).
Make sure that an antenna is connected.
In order to extract or to insert the Micro SIM card, it is necessary to press the SIM holder ejector with a sharp element (a pen
for example).
If this sequence is not respected, the SIM holder could be damaged.
Wavecom WMO2 Modem3
GUIDE19/04/99, 9:216
INSTALLATION/START-UP
2.3Electrical characteristics
2.3.1 Switching the GSM modem on/off
The device is permanently powered (when connected to the power supply).
2.3.2 Voltage range
Voltage range:5 to 32V DC (GSM 900) - 6 to 32V DC (GSM 1800/1900)
GND:0V
2.3.3 Overvoltage/undervoltage
Correct operation of the Wavecom WMO2 modem in communication mode is not guaranteed if input voltage
fall below 5V (GSM 900) - 6V (GSM 1800/1900). The modem is protected against voltage over 32V.
When input voltages exceed 32V, the supply voltage is disconnected in order to protect the electronic components from an
overvoltage.
TWO CASES ARE POSSIBLE:
- IF THE OVERVOLTAGE IS CONTINUOUS, THE PROTECTION IS GUARANTEED BY THE FUSE.
- IN THE CASE OF TRANSIENT PEAKS, THE MODEM GUARANTEES ITS OWN PROTECTION.
INSTALLATION/START-UP
Wavecom WMO2 Modem4
GUIDE19/04/99, 9:217
2.3.4 Power supply cable
m
A cable, included in the package shall be used for power supply connection.
The wires are marked as follows:
Cable:1 wire
Ame:tinned copper 24x0.2 mm
Section:0.75 mm
2
Cables stripped over 200 mm,
T
M
Connector Molex Micro-Fit 3.0
protected by their own sheath
Side view
-
- +
+
Figure 3
Power supply cable
Wavecom WMO2 Modem5
GUIDE19/04/99, 9:218
Stripped wire, tinned over 5 m
Standard cable sheath
INSTALLATION/START-UP
2.3.5 Input/output electrical characteristics defined for all external connections
For all other codes, and/or details, see A T commands manual.
Wavecom WMO2 Modem14
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GUIDE19/04/99, 9:2217
B) Additional hints
❏ Is the antenna properly connected?
➫ For GSM 900 : use a 870 to 960 MHz / 50 Ohms antenna.
➫ For GSM 1800 : use a 1710 to 1880 MHz / 50 Ohms antenna.
➫ For GSM 1900 : use a 1850 to 1990 MHz / 50 Ohms antenna.
❏ Is the received signal strong enough?
➫ With the AT-Command AT+CSQ check that the received signal (1st parameter of the response) is strong
enough to be able to establish a call.
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❏ The modem always returns «No carrier» when trying to issue a voice communication?
➫ Insure the character «semicolon» is present straight after the phone number on the AT-Command
ATD######;
❏ The modem always returns «No carrier» when trying to issue a data communication?
➫ Insure the selected bearer type is supported by the called party.
➫ Then, insure the selected bearer type is supported by the Network.
➫ If no success, try bearer selection type: AT+CBST=0,0,3.
➫ Insure the SIM Card is available for Data/Fax calls.
Wavecom WMO2 Modem15
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TROUBLESHOOTING
GUIDE19/04/99, 9:2218
6. NOTES ON SAFETY
6.1General Safety
It is important to follow any special regulations regarding the use of radio equipment due in particular to the possibility of radio
frequency, RF, interference. Please follow the safety advice given below carefully .
❏ Switch OFF your GSM Modem when in an aircraft. The use of cellular telephones in an aircraft may endanger the
operation of the aircraft, disrupt the cellular network and is illegal. Failure to observe this instruction may lead to suspension
or denial of cellular telephone services to the offender , or legal action or both.
❏ Switch OFF your GSM Modem when at a refueling point.
❏ Switch OFF your GSM Modem in hospitals and any other place where medical equipment may be in use.
❏ Respect restrictions on the use of radio equipment in fuel depots, chemical plants or where blasting operations are in
progress.
❏ There may be a hazard associated with the operation of your GSM Modem close to in adequately protected personal
NOTES ON SAFETY
Wavecom WMO2 Modem16
medical devices such as hearing aids and pacemakers. Consult the manufactures of the medical device to determine if it is
adequately protected.
❏ Operation of your GSM Modem close to other electronic equipment may also cause interference if the equipment is
inadequately protected. Observe any warning signs and manufacturers recommendations.
GUIDE19/04/99, 9:2219
6.2Vehicle Safety
❏ Do not use your GSM Modem while driving, unless equipped with a correctly installed vehicle kit allowing ‘Hands-Free’
Operation.
❏ Respect national regulations on the use of cellular telephones in vehicles. Road safety always comes first.
❏ If incorrectly installed in a vehicle, the operation of GSM Modem telephone could interfere with the correct functioning of
vehicle electronics. To avoid such problems, ensure that the installation has been performed by a qualified personnel.
Verification of the protection of vehicle electronics should form part of the installation.
❏ The use of an alert device to operate a vehicle’s lights or horn on public roads is not permitted.
6.3Car And Maintenance
Your GSM Modem is the product of advanced engineering, design and craftsmanship and should be treated with care. The
suggestion below will help you to enjoy this product for many years.
❏ Do not expose the GSM Modem to any extreme environment where the temperature or humidity is high.
❏ Do not attempt to disassemble the GSM Modem. There are no user serviceable parts inside.
❏ Do not expose the GSM Modem to water, rain or spilt beverages, It is not waterproof.
❏ Do not abuse your GSM Modem by dropping, knocking, or violent shaking. R ough handling can damage it.
❏ Do not place the GSM Modem alongside computer discs, credit or travel cards or other magnetic media. The information
contained on discs or cards may be affected by the phone.
Wavecom WMO2 Modem17
NOTES ON SAFETY
GUIDE19/04/99, 9:2220
❏ The use of third party equipment or accessories, not made or authorized by Wavecom may invalidate the warranty of GSM
Modem.
❏ Do contact an authorized Service Center in the unlikely event of a fault.
6.4Your Responsibility
This GSM Modem is under your responsibility . Please treat it with care respecting all local regulations. It is not a toy therefore
keep it in a safe place at all times and out of the reach of children.
T ry to remember your Unlock and PIN codes. Become familiar with and use the security features to block unauthorized use and
theft.
F-06921 Sophia Antipolis Cedex, F rance
e-mail : secretariat@etsi.fr
Service:The AT commands manual is avalable on W avecom web site:
http://www.wavecom.com
Disclaimer
Modem and GSM-unit specifications and manuals are subject to change without notice. Wavecom assumes no liability for
damage incurred directly or indirectly from errors, omissions or discrepancies between the modem or GSM-unit and their
manuals.
Trademarks
Some mentioned products are registred trademarks of them respective companies.
Copyright
This manual is copyrighted by Wavecom with all rights reserved. No part of this manual may be reproduced in any form without
the prior written permission of Wavecom.
No patent liability is assumed with respect to the use of the information contained herein.
Wavecom WMO2 Modem19
GENERAL INFORMATIONS
GUIDE19/04/99, 9:2222
WAVECOM S.A. - 39 rue du Gouverneur Gal. Eboué, F-92130 Issy-les-Moulineaux - France
Tel: +33 1 46 29 08 00 - Fax: +33 1 46 29 08 08
WAVECOM Inc. - 5405 Morehouse Drive, Suite 330 - San Diego, CA 92121 - USA
Tel: +1 619 450 1778 - Fax: +1 619 450 1636
WAVECOM Asia Pacific Ltd. - 2 nd floor, Shui On Center, 6/8 Harbour Road - Hong Kong
GUIDE19/04/99, 9:2323
Tel: +852 2824 8973 - Fax: +852 2824 8929
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