4116298
Rev 7.0
November 07, 2016
38
Product Technical Specification and
User Guide
Power Consumption
6.2.2.
Serial Port Shutdown Mode
The modem could be configured to shut down the serial link interface while there is no traffic on the
serial link channel by the following AT command:
Enabling Serial Port Shutdown Mode
AT+KGPIOCFG=7,0,2
//set GPIO7 as an output
AT+KGPIO=7,1
//set GPIO7 output high
Disabling Serial Port Shutdown Mode
AT+KGPIOCFG=7,0,2
//set GPIO7 as an output
AT+KGPIO=7,0
//set GPIO7 output low
For more information about AT commands applicable to the GL8200, please refer to the commands
marked as supported by HL8548x in document [2] AirPrime HL6 and HL8 Series AT Commands
Interface Guide.
The Serial Port Shutdown Mode will be immediately activated after the AT command set. To wake the
modem up from this mode, just simply set the DTR pin to HIGH.
Note:
A 4-wire serial interface can only support this feature if DTR is managed. A 2-wire serial interface,
on the other hand, cannot support this feature. Attempting to enable it will lead to termination of
communication with the modem.
6.3.
Power Consumption Values
These consumption values were obtained by performing measurements on samples at a temperature
of 25°C with the assumption of a 50
Ω RF output.
Three DC inputs (VIN-VBUS) were used to measure the consumption: VinMIN (4.75V), VinTYP (12V)
and VinMAX (32V). Both the average current and maximum current peaks were also measured.
Note that power consumption performance is also software related.
Note:
TX = the current peak is the RF transmission burst (Tx burst)
RX = the current peak is the RF reception burst (Rx burst)
Table 21.
Power Consumption (Typical Values)
Working
Modes
Parameters
I
ave rage
Unit
Vin = 32V
Vin = 12V
Vin = 4.75V
ACTIVE Mode
GSM DRX9
(Rx burst occurrence ~2s)
8.11
16.58
30.62
mA
GSM DRX2
(Rx burst occurrence ~0,5s)
8.12
16.68
30.84
mA
WCDMA DRX9
8.07
16.41
31.00
mA
WCDMA DRX6
8.12
16.54
31.70
mA
Содержание AirLink GL8200
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