Wavecom WMOD2B User Manual

WMOD2B dual-band

900 / 1800 MHz modem

USER MANUAL

SUMMARY

1. PRODUCT DESCRIPTION 1

1.1 P ackage content 1

1.2 Product presentation 1

1.3 Physical characteristics 2

1.4 Functions - GSM Modes 2

1.5 Temperature range 2

2. INSTALLATION/START-UP 3

2.1 Mounting the modem 3

2.2 Installing the modem 3

2.3 Electrical characteristics 4

2.3.1 Switching the GSM modem on/off 4

2.3.2 Voltage range 4

2.3.3 Overvoltage/undervoltage 4

2.3.4 Power supply cable 5

2.3.5 Input/output electrical characteristics defined for all external connections 6

2.3.6 Protection/on-board network connection 6

3. DESCRIPTION OF THE INTERFACES 7

3.1 LED Function 7

3.2 Connectors 7

4. TECHNICAL DATA 11

Wavecom WMOD2B Modem

SUMMARY

5. TROUBLESHOOTING: Specific defaults possibly encountered 12

5.1 The modem does not answer through the serial link 12

5.2 The modem always returns «Error» when trying to issue a communication 13

5.3 The modem always returns «No carrier» when trying to issue a communication 14

6. REFERENCE ACCESSORIES 16

7. NOTES ON SAFETY 16

7.1 General safety 16

7.2 Vehicle safety 17

7.3 Car And Maintenance 17

7.4 Your responsibility 18

8. GENERAL INFORMATIONS 19

SUMMARY

Wavecom WMOD2B Modem

1. PRODUCT DESCRIPTION

The Wavecom WMOD2B is a dual-band E-GSM 900/1800 modem.

1.1 Package content

The Wavecom WMOD2B modem package comprises:

- 1 Modem

- 2 holding bridles

- 1 Power supply cable + fuse

- 1 User manual (this document)

1.2 Product presentation

The Wavecom WMOD2B modem supports DATA and FAX transmission, Short Messages (Point to Point and Cell Broadcast)
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.

Back cap

Figure 1

LED

Extractible
SIM holder

SMA
connector

TM

Micro-Fit

connector
Front cap

Wavecom WMOD2B Modem 1

SUB HD
connector

Modem presentation

PRODUCT DESCRIPTION

1.3 Physical characteristics

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1.4 Functions - GSM Modes

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PRODUCT DESCRIPTION

1.5 Temperature range

Operating conditions : From -20°C to +55°C
Storage conditions : From -25°C to +70°C

Wavecom WMOD2B Modem 2

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2 INSTALLATION/START-UP

2.1 Mounting the modem

For mounting the modem, bind to the body the holding bridles according to the schema below:

Note:

- To be attached to a plain surface

- Screw head max. height: 2mm

Holding bridles

Figure 2

Modem mounting

2.2 Installing the modem

To install the modem, plug the device on a DC power supply (for automotive applications, connect the device on the
permanent « + » and insert the SIM card in the holder).

Make sure that an antenna is connected.

2

mm

2 mm

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 WMOD2B Modem 3

INSTALLATION/START-UP

2.3 Electrical 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
GND : 0V

2.3.3 Overvoltage/undervoltage

Correct operation of the Wavecom WMOD2B modem in communication mode is not guaranteed if input voltage
fall below 5V. 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 WMOD2B Modem 4

2.3.4 Power supply cable

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,
protected by their own sheath

Connector Molex Micro-Fit 3.0

TM

Side view

-

+

Figure 3

Power supply cable

Wavecom WMOD2B Modem 5

Stripped wire, tinned over 5 mm

Standard cable sheath

INSTALLATION/START-UP

2.3.5 Input/output electrical characteristics defined for all external connections

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* RS232 driver (MAX3238) automatically shutdown after 30s of inactivity on the serial link.
The tests are carried out with a 3V SIM card.
The power consumption might vary of 5% over the whole operating temperature range (-20°C to +55°C)

INSTALLATION/START-UP

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2.3.6 Protection/on-board network connection

The modem is protected by a fuse directly binded on the power supply cable.

Wavecom WMOD2B Modem 6

TINU

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3. DESCRIPTION OF THE INTERFACES

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The modem comprises several interfaces:

- LED function indicating operating status

- External antenna (via SMA)

- Serial and control link (via 15 pins SUB D)

- Power supply (via 4 pins Micro-FitTM)

- SIM card holder

3.1 LED Function

- LED off Device switched off - Not ready

- LED on Device switched on - Connecting to network

- LED flashing slowly Device switched on - Idle mode (registered on network)

- LED flashing rapidly Device switched on - T ransmission mode

3.2 Connectors

Wavecom WMOD2B Modem 7

DESCRIPTION OF THE INTERFACES

A SIM card is needed to operate on a GSM network.
To install the card:

- Press the yellow button to eject the holder.

- Insert the SIM card.

- Check that it fits into place correctly.

SIM card

Extractible

DESCRIPTION OF THE INTERFACES

SIM card holder

Wavecom WMOD2B Modem 8

SMA connector
(antenna connector)

Yellow button to
eject the holder
(with a sharp element)

Figure 4

SMA connector

Figure 5

SIM card holder

Figure 6

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(high density)

Wavecom WMOD2B Modem 9

Pins assignment for

15 pins SUB D Connector

DESCRIPTION OF THE INTERFACES

Figure 7

4 pins Micro-Fit

TM

connector

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DESCRIPTION OF THE INTERFACES

Wavecom WMOD2B Modem 10

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4. TECHNICAL DATA

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Wavecom WMOD2B Modem 11

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TECHNICAL DATA

5. TROUBLESHOOTING: Specific defaults possibly encountered

5.1 The modem does not answer through the serial link

A) Is the modem correctly powered on?

❏ If not, the correct power supply is 5 to 32V
❏ The power supply must be able to deliver current peaks up to 1.8A@5V (see chapter 2.3.5 for further details).

B) Is the serial cable suitable and adjusted in the modem and PC sockets?

❏ A suitable cable must follow pin assignment described on figure 6.
❏ Check in particular , that Rx et Tx are properly connected.

C) Check that your communication program is properly configured:

❏ Modem factory setting for the character framing are:

➫ Data Bits : 8
➫ Parity : None
➫ Stop Bits : 1

❏ The factory setting for the baud rate is 9600 bps.

TROUBLESHOOTING

D) Does any other program interfere with your communication program (conflict on communication port access)?

❏ If yes, close any application likely to interfere (e.g. mouse or printer driver).

Wavecom WMOD2B Modem 12

5.2 The modem always returns «Error» when trying to issue a communication

A) Issue AT+CMEE=1 to have extended error code and retry

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For all other codes, and/or details, see AT commands manual.
B) Additional hints

❏ Is the modem registered on the network?

Does the AT-Command AT + CREG? answers 0,1 (registered) or 0,5 (registered roaming)?

➫ If not, check that the received signal is strong enough to synchronize on the Network (use AT+CSQ).

Wavecom WMOD2B Modem 13

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TROUBLESHOOTING

❏ Is the modem receiving an incoming call or already in communication?

➫ With some software versions, you must release any incoming or active call (with ATH) before being able

to make an outgoing call.

5.3 The modem always returns «No carrier» when trying to issue a communication

A) After a failed attempt (“no carrier”), issue AT+CEER to have extended Error code

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TROUBLESHOOTING

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For all other codes, and/or details, see AT commands manual.

Wavecom WMOD2B Modem 14

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B) Additional hints

❏ Is the antenna properly connected?

Use an antenna with the following features:

➫ Frequency range : dual-band GSM 900/1800 MHz.
➫ Impedance : 50 Ohms.
➫ Gain (antenna + cable) : 0dBi.
➫ VSWR (antenna + cable) : -10dB.

❏ Is the received signal strong enough?

➫ With the AT-Command AT+CSQ check that the received signal (1

enough to be able to establish a call.

st

parameter of the response) is strong

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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.

5.4 Further questions

For further troubleshooting information, please check our Frequently Asked Questions on www.wavecom.com (customer
support section).

Wavecom WMOD2B Modem 15

TROUBLESHOOTING

6. REFERENCE ACCESSORIES

The following accessories have been qualified for the WMOD2B modem:

❏ Dual-band antenna : ALLGON 1140.26
❏ Antenna adaptor : SMA/FME adaptor from PROCOM
❏ Power adaptor : EGSTON N2 EFSW 12V 1A mounted with micro-fit connector from MOLEX.

7. NOTES ON SAFETY

7.1 General 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

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

REFERENCE ACCESSORIES - NOTES ON SAFETY

Wavecom WMOD2B Modem 16

inadequately protected. Observe any warning signs and manufacturers recommendations.

7.2 Vehicle 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.

7.3 Car 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. Rough 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 WMOD2B Modem 17

NOTES ON SAFETY

❏ 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.

7.4 Your 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.

NOTES ON SAFETY

Wavecom WMOD2B Modem 18

8. GENERAL INFORMATIONS

GSM reference documents : GSM 03.40, GSM 03.45, GSM 04.11,

GSM 04.21, GSM 05.08, GSM 07.01,
GSM 07.02, GSM 07.05, GSM 07.07.

ETSI contact : ETSI Secretariat

F-06921 Sophia Antipolis Cedex, F rance
e-mail : [e-mail]

Service : The AT commands manual is available from your local modem supplier.

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 WMOD2B Modem 19

GENERAL INFORMATIONS

WAVECOM Headquaters - 39, rue du Gouverneur Général Eboué, 92442 Issy-les-Moulineaux cedex - France

Tel: [phone] - Fax: [phone]

WAVECOM Inc. - 5405 Morehouse Drive, Suite 330 - San Diego, CA 92121 - USA

Tel: [phone] - Fax: [phone]

WAVECOM Asia Pacific Limited - 5/F, Shui On Centre, 6/8 Harbour Road - Hong Kong PRC

Tel: [phone] - Fax: [phone]

WAVECOM Asia Pacific Limited - Tokyo Branch - 4/F, East Tower, Otemachi First Square, 1-5-1 Otemachi, Chiyoda-ku

Tokyo 100-0004 - Japan - Tel: [phone] - Fax: [phone]

www.wavecom.com

WAVECOM, WISMO and WISMO Within are trademarks filed by WAVECOM S.A.,

is a copyrighted material © copyright WAVECOM S.A. 10/99