Wavecom WMO2-G900, WMO2-G1900, WMO2-G1800 User Manual
USER MANUAL
WMO2 Modem Series
GSM 900 / 1800 / 1900
GUIDE 19/04/99, 9:201
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 T emperature 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
SUMMARY
Wavecom WMO2 Modem
GUIDE 19/04/99, 9:202
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. NOTES ON SAFETY 16
6.1 General safety 16
6.2 Vehicle safety 17
6.3 Car And Maintenance 17
6.4 Your responsibility 18
7. GENERAL INFORMATIONS 19
SUMMARY
Wavecom WMO2 Modem
GUIDE 19/04/99, 9:203
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
1.1 Package content
The Wavecom WMO2 modem package comprises:
- 1 Modem
- 2 holding bridles
- 1 Power supply cable + fuse
- 1 User manual (this document)
1.2 Product 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.
PRODUCT DESCRIPTION
Wavecom WMO2 Modem 1
Micro-Fit
connector
TM
SUB HD
connector
Front cap
LED
Extractible
SIM holder
SMA
connecto
r
Back cap
Figure 1
Modem presentation
GUIDE 19/04/99, 9:204
1.3 Physical characteristics
1.4 Functions - GSM Modes
1.5 Temperature range
Operating conditions : From -20°C to +55° C
Storage conditions : From -25° C to +70° C
PRODUCT DESCRIPTION
Wavecom WMO2 Modem 2
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GUIDE 19/04/99, 9:205
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 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.
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.
INSTALLATION/START-UP
Wavecom WMO2 Modem 3
Note:
- To be attached to a plain surface
- Screw head max. height: 2mm
2
m
m
Holding bridles
2
mm
GUIDE 19/04/99, 9:216
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 (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 OVERVOL TAGE 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 Modem 4
GUIDE 19/04/99, 9:217
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