EG_GenLoc54e_1040_UG_002_UK
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
7.3.2.5
Instructions and restrictions of use
When the battery is completely discharged, it takes around three hours to obtain a complete charge.
When the battery is connected and charged, it is not possible to do an ON/OFF of the device, only putting
the Reset input (pin 10 of the 16-pin micro-FIT connector) to the ground or sending the command
AT+EGMRST
allows a reset of the modem.
The battery cannot be replaced or modified by the user; the device must not be opened for
any intervention on the battery: the device must be returned to the factory.
Do not throw the modem and the battery on the fire.
7.3.3
Protections of the power supply
The modem is protected by a F2 A / 32 V fuse directly assembled on the power supply cable supplied with
the modem.
Fuse reference : Mini Blade for automobile 2A - 32V (color code : grey)
The modem is also internally protected against voltage peaks of more than 32 V.
It is necessary to use the power supply cable delivered with the modem; otherwise the
modem will not be protected.
7.4 RS232 serial link
The RS232 interface provides an adaptation of the voltage levels
(V24/CMOS
V24/V28) between the
GSM/GPRS module (DCE) and a communication Port of a PC (DTE).
The RS232 interface is internally protected (ESD protection) against electrostatic peaks coming from the
RS232.
Filter guarantees:
EMI/RFI protection in Input and Output and signal smoothing.
The RS232 interface was designed to allow a certain flexibility in the use of the serial interface signals.
In fact, after the setting (see command
AT+IFC) if the GenLoc 54e contains the EGM standard library (see
the documents "EG_EGM_CL_xxx_yy" of ERCOGENER), in this case, the modem can work in 3-wire mode
(using only the signals TX, RX, GND), but the use of the signals
TX, RX, GND, CTS, RTS is required for a
GPRS application.
