WMOD2B dual-band
900/1800 or 900/1900 MHz modem
USER MANUAL
SUMMARY
1. PRODUCT DESCRIPTION 1
1.1 Package 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
1.4 Functions - GSM Modes 2
1.5 Temperature range 2
6. REFERENCE ACCESSORIES 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
Micro-Fit
TM
connector
SUB HD
connector
Front cap
LED
Extractible
SIM holder
SMA
connector
Back cap
The Wavecom WMOD2B modem exists under two dual-band versions:
- EGSM 900/1800 MHz
- EGSM 900/1900 MHz
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.
PRODUCT DESCRIPTION
Figure 1
Modem presentation
1Wavecom WMOD2B Modem
1.3 Physical characteristics
1.4 Functions - GSM Modes
Standard Dual Band Extended GSM 900 MHz Class 4 (2W) and GSM 1800/1900 MHz
Interface Serial interface RS232 V.24/V.28 Autobauding function
SMS Mode Text & PDU point to point. Cell broadcast.
Data
PRODUCT DESCRIPTION
Fax GSM teleservice 62 in Transparent Mode.
Audio Half Rate / Full Rate / Enhanced Full Rate. Accessories (options): handset and car-kit.
1.5 Temperature range
Operating conditions : From -20°C to +55°C
Storage conditions : From -25°C to +70°C
Dimensions 98x54x25 mm (excluding connectors)
Overall dimensions 110x54x25 mm
Weight < 130 grams
Volume 13.23 cm
3
Housing Aluminium profiled
Class 1 (1W)
AT command set based on V.25ter and GSM 07.05 & 07.07
Mobile Originated (MO) and Mobile Terminated (MT).
In accordance with GSM 07.05.
Asynchronous 2400, 4800, 9600 and 14400 bits/s.
Transparent and Non Transparent mode.
In Non Transparent Mode only: 300, 1200, 1200/75 bauds.
Mode 3.1 KHz (PSTN) and V110 (ISDN).
2400/4800/7200/9600 bits/s
Class 2. Groupe 3 compatible.
2Wavecom WMOD2B Modem
2 INSTALLATION/START-UP
2 mm
Holding bridles
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
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.
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.
3Wavecom WMOD2B Modem
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
4Wavecom WMOD2B Modem
2.3.4 Power supply cable
+
-
Side view
Connector Molex Micro-Fit 3.0
TM
Cables stripped over 200 mm,
protected by their own sheath
Standard cable sheath
Stripped wire, tinned over 5 mm
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
Figure 3
Power supply cable
5Wavecom WMOD2B Modem
INSTALLATION/START-UP
2.3.5 Input/output electrical characteristics defined for all external connections
Parameters
GSM 900
MIN TYP MAX MIN TYP MAX
GSM 1800/1900
Power supply @25° C:
Input supply voltage 5 13.2 32 5 13.2 32 V
Input peak supply current
(in communication @ Pmax)
Input average supply current
(in communication @ Pmax)
@5V 1.8 1.1 A
@13.2V 0.7 0.4 A
@32V 0.4 0.2 A
@5V 330 220 mA
@13.2V 130 95 mA
@32V 65 50 mA
@5V 31.4 31.4 mA
Input average supply current in idle mode
@13.2V 13.2 13.2 mA
@32V 5.6 5.6 mA
Input average supply current in idle mode
(with auto-shutdown of the RS232 driver)*
@5V 8.8 8.8 mA
@13.2V 4.1 4.1 mA
@32V 2.2 2.2 mA
Serial link : - RS232
Audio (head set):
Microphone input voltage @ lowest gain. 43.8 43.82 mVrms
Speaker output voltage @ maximum gain. 1.65 1.65 Vrms
Speaker impedance 32 32 Ω
INSTALLATION/START-UP
SIM 3 or 5 3 or 5 V
* 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)
2.3.6 Protection/on-board network connection
The modem is protected by a fuse directly binded on the power supply cable.
6Wavecom WMOD2B Modem
UNIT
3. DESCRIPTION OF THE INTERFACES
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 - Transmission mode
3.2 Connectors
Connector Function
SMA RF antenna connector
15 pins SUB D
(high density)
4 pins Micro-Fit
TM
“ SIM” connector SIM card connection
RS232 link
AUDIO link
RESET
Power supply connector
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DESCRIPTION OF THE INTERFACES
DESCRIPTION OF THE INTERFACES
Extractible
SIM card holder
SIM card
Yellow button to
eject the holder
(with a sharp element)
SMA connector
(antenna connector)
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.
8Wavecom WMOD2B Modem
Figure 4
SMA connector
Figure 5
SIM card holder
Figure 6
15 pins SUB D connector
(high density)
Pins assignment for
15 pins SUB D Connector
PIN EIA CCIT Designation
1 DCD 109 Data Carrier Detect
6 RX 104 Receive Data (out)
2 TX 103 Transmit Data
8 DTR 108.2 Data Terminal Ready
RS
9 GND Signal ground
232
7 DSR 107 Data Set Ready
12 RTS 105 Request to send
11 CTS 106 Clear to send
13 RI 125 Ring indicator
4 MICROPHONE (+)
5 MICROPHONE (-)
Audio
10 SPEAKER (+)
15 SPEAKER (-)
Reset
14 RESET
3 RESERVED
9Wavecom WMOD2B Modem
DESCRIPTION OF THE INTERFACES
DESCRIPTION OF THE INTERFACES
2
1
4
3
21
43
Figure 7
4 pins Micro-Fit
TM
connector
Connector Pins layout Comments
4 pins
Micro-Fit 3.0TM
1 V+BATTERY Power
2 GROUND supply
3-4 AUXI NC
The 4 pins Micro-Fit 3.0TMcan be ordered from a supplier called MOLEX.
10Wavecom WMOD2B Modem
4. TECHNICAL DATA
Description AT commands Module Comments
Module synchro
checking
Receiving an
incoming call
Initiate a call
Initiate an
emergency call
Communication loss
Hang up
Enter PIN Code
Store the
parameters in E2P
AT+CREG ? CREG=<mode>, 1 Modem synchronised on the network
CREG=<mode>, 2 Synchronisation lost, re-synchronisation attempt
CREG=<mode>, 0 Modem not synchronised on the network, no synchronisation attempt
RING
ATA Answer the call
OK
ATD1234; Don’t forget the « ; » at the end for « voice » call
OK Communication established
CME ERROR : 11 PIN code not entered (with + CMEE = 1 mode)
CME ERROR : 3 AOC credit exceeded or a communication is already established
ATD112; Don’t forget the « ; » at the end for « voice » call
OK
NO CARRIER
ATH
OK
AT+CPIN=1234
OK PIN Code accepted
+CME ERROR : 16 Incorrect PIN Code (with +CMEE = 1 mode)
+CME ERROR : 3 PIN already entered (with +CMEE = 1 mode)
AT&W
OK The configuration settings are stored in E2P
11Wavecom WMOD2B Modem
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.
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).
12Wavecom WMOD2B Modem
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
Error
code
0 Phone failure Call your technical support
3 Operation not allowed
4 Operation not supported
10 SIM not inserted
11 SIM PIN required Enter PIN code
12 SIM PUK required Enter PUK code (call your network provider if you don’t know this code)
13 SIM Failure Check validity of your SIM card.If SIM damaged, call your network provider
16 Incorrect password Check the code you entered
17 SIM PIN2 required Enter PIN2 code
18 SIM PUK2 required Enter PUK2 code (call your network provider if you don’t know this code)
26 Dial string too long Check your phone number (max 20 digits)
30 No network service
Diagnostic Hint
➞ Insert the SIM card in the SIM holder of the modem,
➞ If SIM card is inserted, insure that it is clean and properly inserted.
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).
13Wavecom WMOD2B Modem
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
Error code Diagnostic Hint
1 Unallocated phone number
16 Normal call clearing
17 User busy
18 No user responding
19 User alerting, no answer
21 Call rejected
22 Number changed
31 Normal, unspecified
50 Requested facility not subscribed
TROUBLESHOOTING
3, 6, 8, 29, 34, 38, 41, 42,
43, 44, 47, 49, 57, 58, 63, Network causes
68 ACM equal or greater than ACMmax Credit of your pre-paid SIM card expired
252 Call barring on outgoing calls
253 Call barring on incoming calls
65, 69, 70, 79, 254
Check your subscription (data subscription
available?)
See AT commands manual for further details
or call network provider
For all other codes, and/or details, see AT commands manual.
14Wavecom WMOD2B Modem
B) Additional hints
❑ Is the antenna properly connected?
Use an antenna with the following features:
➫ Frequency range : dual-band GSM 900/1800 or 900/1900 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
strong enough to be able to establish a call.
AT+CSQ response Signal quality
(RSSI)
11 to 31 ➞ Should be sufficient*
0 to 10
and +99
➞ Could be insufficient*
st
parameter of the response) is
* based on general observations.
❑ 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).
15Wavecom WMOD2B Modem
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 (Europe): EGSTON N2 EFSW 12V 1A mounted with micro-fit connector from MOLEX.
7. NOTES ON SAFETY
7.1 General Safety
The modem is designed for and intended to be used in fixed and mobile applications. “Fixed” means that the device is physically secured at one location and is not able to be easily moved to another location. “Mobile” means
that the device is designed to be used in other than fixed locations and generally in such a way that a separation
distance of at least 20 cm (8 inches) is normally maintained between the transmitter’s antenna and the body of the
user or nearby persons. The Modem is not designed for a intended to be used in portable applications (within 20
cm of the body of the user) and such uses are strictly prohibited.
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 endan-
ger 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.
REFERENCE ACCESSORIES - NOTES ON SAFETY
❑ Switch OFF your GSM Modem in hospitals and any other place where medical equipment may be in use.
16Wavecom WMOD2B Modem
❑ Respect restrictions on the use of radio equipment in fuel depots, chemical plants or where blasting opera-
tions 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 equip-
ment is 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.
17Wavecom WMOD2B Modem
NOTES ON SAFETY
❑ 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.
❑ 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
NOTES ON SAFETY
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.
Try to remember your Unlock and PIN codes. Become familiar with and use the security features to block unauthorized use and theft.
18Wavecom WMOD2B Modem
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, France
e-mail : secretariat@etsi.fr
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.
19Wavecom WMOD2B Modem
GENERAL INFORMATIONS
WAVECOM Headquaters - 39, rue du Gouverneur Général Eboué, 92442 Issy-les-Moulineaux cedex - France
Tel: +33 1 46 29 08 00 - Fax: +33 1 46 29 08 08
WAVECOM Inc. - 610 West Ash Street, Suite 1400 - San Diego, CA 92101 - USA
Tel: +1 619 235 9702 - Fax: +1 619 235 9844
WAVECOM Asia Pacific Limited - 5/F, Shui On Centre, 6/8 Harbour Road - Hong Kong PRC
Tel: +852 2824 0254 - Fax: +852 2824 0255
WAVECOM Asia Pacific Limited - Tokyo Branch - 4/F, East Tower, Otemachi First Square, 1-5-1 Otemachi, Chiyoda-Ku
Tokyo 100-0004 - Japan - Tel: +81 (0)3 5219 1350 - Fax: +81 (0)3 5219 1450
www.wavecom.com
is a copyrighted material © copyright WAVECOM S.A. 4/01
WAVECOM, WISMO and WISMO Within are trademarks filed by WAVECOM S.A.,
NOTICE TO O EM ’S
NOTICE: THE FOLLOWING STATEMENT MUST BE INCLUDED IN MANUAL FUR NISHED TO
THE E ND US ER.
A minimum separatio n distance distance of 20 cm must be maintained betwee n the antenna and
persons for this device to satisfy the RF Exposure requirements of the FCC. For fixed mo unt
operation, the ante nna co-locatio n req uire me nts of Sect ion 1.1307(b) ( 3) of the FCC rules must be
satisfied. For fixed mount operation, the maximum gain of the antenna must not exceed 7 dBi. For
mobile operatio n, the maximum gain of the antenna m ust not exceed 3 dBi.
WARNING! Use of this module in portable operations is not permitted.
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