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SIM Tech SIMCom SIM868 Series User Manual

SIM Tech SIMCom SIM868 Series
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Smart Machine Smart Decision
SIM868_Series_Hardware_Design_V1.06 23 2017-07-13
4.2. Stand-alone Mode
In stand-alone mode, GSM and GNSS part can work independently. It’s convenient for customer to control them
separately. Figure 7 is the block diagram of this mode.
Module
VRTC
VRTC
PWRKEY
MCU
UART1_TXD
UART1_RXD
RXD1
TXD1
GSM_VBAT
LDO
Adapter
5V
4V
GNSS_TXD
GNSS_RXD
RXD2
TXD2
GPS_VBAT
GNSS_EN
OUT
V_GPS
LDO
Figure 7: Stand-alone Mode Diagram
SIMCOM CONFIDENTIAL FILE

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SIM Tech SIMCom SIM868 Series Specifications

General IconGeneral
BrandSIM Tech
ModelSIMCom SIM868 Series
CategoryGSM/GPRS Modules
LanguageEnglish