User guide
Table Of Contents
- Presentation
- Warning
- Copyright
- 1 References
- 2 Packaging
- 3 General presentation
- 4 Characteristics and Services
- 5 Use of the modem
- 5.1 Starting with the modem
- 5.2 Specific recommendations for the use of the modem in vehicles
- 5.3 GSM led of the modem
- 5.4 Echo function of AT commands deactivated
- 5.5 Checking the quality of the GSM reception signal
- 5.6 Verification of PIN code
- 5.7 Verification of modem registration on GSM network
- 5.8 Verification of modem registration on GPRS network
- 5.9 Verification of internal voltages of the modem
- 5.10 Main AT commands (HAYES)
- 5.11 Turning OFF the modem
- 5.12 Updating procedure of the modem
- 6 Trouble Shooting
- 7 Functional description
- 8 Technical characteristics
- 8.1 Mechanical characteristics
- 8.2 Electrical characteristics
- 8.3 Environmental characteristics
- 8.4 Standards/Conformities
- 9 Security recommendations
- 10 Recommended accessories
- 11 Client support
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO & GENER reserves the right to make any modification.
Dct_427_01
7.2.2.4 Instructions and restrictions of use
The internal battery option is not cabled by default and its implementation must be made by ourselves in our
factory (contact us).
When the battery is completely discharged, it takes around three hours to obtain a complete charge.
When the battery is present and charged, the fact of removing the power supply +V
DC
does
not turn OFF the equipment. For this, see §5.11 Turning OFF the modem.
The battery cannot be replaced or modified by the user. The device must NOT be
opened. For any action on the battery: the device MUST be returned to factory.
Do not throw the modem and the battery on fire.
7.2.3 Protections of power supply
The modem is protected by a fuse 2A / 32V directly assembled on the power cable supplied with the modem.
The modem is also internally protected against voltage peaks of more than 32 V.
Filter guarantees: According to CE certification.
7.3 RS232 serial link
7.3.1 General presentation
The RS232 interface makes an adaptation of the voltage levels (V24/CMOS ⇔ V24/V28) between the
GSM/GPRS module (DCE) and the communication port of a PC (DTE).
The RS232 interface is internally protected (ESD protection) against electrostatic peaks coming from the
RS232.
Filter guarantees: According to CE certification.
The available signals on the RS232 serial link are:
TX data (CT103/TX) ............................. : Data emission,
RX data (CT104/RX) ............................ : data reception,
Request To Send (CT105/RTS) ........... : Request to send,
Clear To Send (CT106/CTS) ................ : Ready to send,
Data Terminal Ready (CT108-2/DTR) .. : Data terminal ready,
Data Set Ready (CT107/DSR) ............. : Data set ready,
Data Carrier Detect (CT109/DCD) ........ : Signal detection,
Ring Indicator (CT125/RI) ..................... : Call indicator.