EG_GenPro400e_1103_UG_001_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
3.4 Power supply
3.4.1
Power supply cables
The modem is powered with the cable supplied with the equipment (cf ANNEX 1
– 4 pins Micro Fit cable 2
wires without fuse).
Table 7 : Description of power supply pins
Signal
Connector 4 pins
Pins N°
I/O
Kind of I/O
Description
+V
DC
GND
4
3
E
Power supply
Power supply
Corresponds to wires
Red
pour +V
DC
Black
pour GND
The pins 1 and 2 are not used The power supply to the modem is done only via the pins 4
(+V
DC
) and 3 (GND).
3.4.2
Power supply
The modem must be powered by an external DC voltage b7.2V
DC
and +32V
DC
The internal regulation is done by a DC/DC converter and allows the supply of all necessary internal DC
voltages.
The modem is also internally protected against voltage peaks of more than 32 V
DC
.
The following table describes the consequences of an overvoltage or drop of voltage on the modem.
Table 8 : Effects of power supply defect
Then :
▪ Voltage falls below 7.2V
▪ The functioning and the GSM communication are
not guaranteed.
▪ Voltage above 32V (Punctual
peaks)
▪ The modem guarantees its own protection.
▪ Voltage above 32V (Continuous
overvoltage)
▪ The modem is protected by the fuse assembled on
the power supply cable.