User's Manual

© 2016 Connected Holdings LLC 4 / 19
2 Hardware Design
2.1 Basic Hardware
Items
Requirement
Baseband Chipset
MT6261D
RF 2G Transceiver
AP6682
Air Interface
Support for Class 12 GPRS, GPS
Frequency
2G band support : 850MHz &
1.9GHz Support for 12 class GPRS
Antenna
Internal Antenna [850M&1900M]
GPS Antenna
Dedicate high performance ceramic antenna
UIM requirement
No-UIM mode, GSM card connector optional
Interface
UART TX
Battery Monitor
UART RX
Build in battery manager
12V DC Input（1A current）
Relay Drive (12V Output ,500mA current)
GPIO1
GPIO2
internal analog input scaled (Optional)
Supported
Dedicate Timers
No
Watchdog
Supported
Motion Detect
Optional（GPS/Sensor）
LED
2 LED Supported
2 LEDs(one is RED，one is Green)
Battery
Built in battery（80MAH Lion）
Working Time
4 hours
Power switch
No
Power Cable color
8 colors
Power Cable connector type
8 pin
Power Consumption
< 5Watts
The AR-2GM provides support for specialized hardware features through extended AT
commands. The features supported include the following.
GPS
The major functionality of the GPS module is to compute the correlation results between the
incoming signal and the selected PRN code based on certain Carrier Doppler Frequency,
Code Doppler Frequency, code phase, carrier phase, and the particular satellite the module is
tracking or acquiring.
GPIO
Two GPIO pins, GP1 and GP2, are presented to the external environment on the main