WMO2 Modem Series GSM 900 / 1800 / 1900 USER MANUAL GUIDE 1 19/04/99, 9:20
SUMMARY 1. PRODUCT DESCRIPTION 1 Package content Product presentation Physical characteristics Functions - GSM Modes Temperature range 1 1 2 2 2 2. INSTALLATION/START-UP 3 2.1 Mounting the modem 2.2 Installing the modem 2.3 Electrical characteristics 2.3.1 Switching the GSM modem on/off 2.3.2 Voltage range 2.3.3 Overvoltage/undervoltage 2.3.4 Power supply cable 2.3.5 Input/output electrical characteristics defined for all external connections 2.3.
5. TROUBLESHOOTING: Specific defaults possibly encountered 5.1 The modem does not answer through the serial link 5.2 The modem always returns «Error» when trying to issue a communication 5.3 The modem always returns «No carrier» when trying to issue a communication 6. NOTES ON SAFETY 6.1 6.2 6.3 6.4 12 13 14 16 General safety Vehicle safety Car And Maintenance Your responsibility 16 17 17 18 19 SUMMARY 7.
1. PRODUCT DESCRIPTION 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 Package content The Wavecom WMO2 modem package comprises: - 1 Modem - 2 holding bridles - 1 Power supply cable + fuse - 1 User manual (this document) 1.
1.3 Physical characteristics Dimensions Overall dimensions Weight Volume Housing PRODUCT DESCRIPTION 1.4 Functions - GSM Modes Standard 900 MHz Class 4 (2W) - 1800 / 1900 MHz Class 1 (1W) GSM Phase 2 Interface Serial interface RS232 V.24/V.28 Autobauding function AT command set based on V.25ter and GSM 07.05 & 07.07 SMS Mobile Originated (MO) and Mobile Terminated (MT). Mode Text & PDU point to point. Cell broadcast. In accordance with GSM 07.05. Data Asynchronous 2400, 4800, 9600 bits/s.
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 : Figure 2 Modem mounting 2.2 m m 2 2 mm Holding bridles Installing the modem 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.
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 GND : : 5 to 32V DC (GSM 900) - 6 to 32V DC (GSM 1800/1900) 0V 2.3.3 Overvoltage/undervoltage INSTALLATION/START-UP 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.
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: : : : 1 wire tinned copper 24x0.2 mm 0.75 mm2 Cables stripped over 200 mm, protected by their own sheath TM Connector Molex Micro-Fit 3.
2.3.5 Input/output electrical characteristics defined for all external connections GSM 900 Parameters Min.
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 LED Function 3.
Figure 4 SMA connector DESCRIPTION OF THE INTERFACES 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.
RS 232 Pins assignment for 15 pins SUB D Connector Audio GUIDE 1 10 15 6 11 PIN EIA CCIT Designation 1 DCD 109 Data Carrier Detect Receive Data (out) 6 RX 104 2 TX 103 Transmit Data 8 DTR 108.
1 2 3 4 DESCRIPTION OF THE INTERFACES Figure 7 4 pins Micro-FitTM connector Pins layout 1 2 3-4 V+ BATTERY GROUND AUXI Comments Power supply NC The 4 pins Micro-Fit 3.0TM can be ordered from a supplier called MOLEX. The address can be obtained on the following internet site : www.wavecom.com Wavecom WMO2 Modem GUIDE 10 13 2 3 4 Connector 4 pins Micro-Fit 3.
4.
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 (GSM 900) - 6 to 32V (GSM 1800/1900). 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.
5.2 The modem always returns «Error» when trying to issue a communication A) Issue AT+CMEE=1 to have extended error cause and retry Diagnostic 0 Phone failure Hint Call your technical support 3 Operation not allowed 4 Operation not supported 10 SIM not inserted → Insert the SIM card in the SIM holder of the modem, → If SIM card is inserted, insure that it is properly inserted.
❏ 5.3 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.
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.
6. NOTES ON SAFETY 6.1 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.
6.2 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.
❏ 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. 6.4 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.
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 avalable on Wavecom web site: http://www.wavecom.com Disclaimer Modem and GSM-unit specifications and manuals are subject to change without notice.
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.
