Power On/Off Operation; Turning The G610 On - Fibocom G610 Hardware User Manual

I gprs-avg

3.4 Power On/Off Operation

The G610 power on and off is the two primary phases, which are related at the interface
connector by the hardware signals POWER_ON, VDD.
The POWER_ON signal is main controller.
The VDD signal indicates whether G610 is powered on or off. When this signal is disable (0V),
G610 is powered-off. When it is output (2.85V), G610 is powered-on.
Important:
Important:
voltage. So DSR/CTS/LPG can be indicated the powered on process replaced.
Important:
G610 Pin#
10
9

3.4.1 Turning the G610 On

When the G610 is powered off, the PMU operates at low power mode, with only the RTC timer
active. G610 will power on again when the POWER_ON signal is falling edge. Asserting the
POWER_ON signal low for a minimum of
G610 GPRS Module Hardware User Manual
1 TX slot 1 Rx slot
Average current
GPRS Class 10
2 TX slot 2 Rx slot
When the VBAT power supplied, the G610 module will be turn on automatically.
The VDD would be flowed backwards by other IOs which be connected extend
The TXD should be pulled up continuously between the G610 turn on process.
G610 Signal name
POWER_ON
VDD
19
DCS/PCS PCL=0
15
GSM850/900
PCL=5
19
DCS/PCS PCL=0
15
Power on and off module
Low level activated
Illustrating module start up
LDO power output 0V : G610 is power off
LDO power output 2.85V : G610 is start up
800 milliseconds will turn G610 on.
300
1400
300
420
150
380
150
Description
mA
Page 16 of 47