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
EG_GenPro25e_1055_UG_000_UK Page 34 / 66
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
5.9.2 Reading the internal voltage +V
INTERNE
The command AT+EGADC=3 allows to read the power supply voltage +V
INTERNE
of the modem. This voltage
is measured in mV
DC
.
Table 12 : Reading the internal voltage +V
INTERNE
Standard
Battery option
Presence of power supply +V
DC
Without power supply +V
DC
This measure corresponds to the
output voltage of the DC/DC
converter
+V
INTERNE
≈ 3.8V
This measure corresponds to the
output voltage of the battery
controller
4.4V ≤ +V
INTERNE
≤ 4.5V
This measure corresponds to the
battery voltage
+V
INTERNE
= V
BATTERIE
See Figure 17 : Internal voltages of the modem
Check the conversion correction factors with the command AT+EGADC=3,0,0
They must be +EGADC: 3,2715,2000, "0"
If this is not the case, enter them with the command AT+EGADC=3,2715,2000,0
These parameters are memorized.
Example:
AT+EGADC=3
+EGADC: 3,3709
OK
For more information about the AT commands, see the document "EG_EasePro_V2.xx_CL_yyy_UK.pdf"