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Smart SAM4Q User Guide V1.1
6 Functionality
General
6.1
The Smart SAM4Q modem consists of an RJ45 socket for serial port and input power, an FME male antenna
connector and a SIM holder. The LED indicator, located next to the SIM holder, indicates the Smart SAM4Q
operating status. It also has a USB port to download firmware.
FME connector
USB
MiniB
Switching
Power
Quectel EC21-
Supply
AUT 3G/LTE
ENGINE
RJ45
ARM Cortex
Socket
M3
SIM Interface
Serial Data
RS232
switches
Serial Data
Interface
LED Indicator
The Smart SAM4Q Functional Block Diagram
8
Ver1.1
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