© 2017 Connected Holdings LLC
4
/
9
2 Hardware Design
2.1 Basic Hardware
Items
Requirement
Baseband Chipset
MDM9207-1
RF Transceiver
WTR2965
Memory
MCP_NAND 2Gb / mobile DDR2 1Gb
Air Interface
Support for WCDMA and LTE Cat.1
Frequency
4G band support : Band2/4/12
3G band support : Band2/5
Antenna
Internal Antenna
GPS Antenna
Dedicated high performance ceramic antenna
Interface
UART TX
UART RX
12V DC Input
（
1A current
）
Relay Drive
GPIO1
GPIO2
Battery Monitor
internal analog input scaled (Optional)
Watchdog
Supported
Motion Detect
Sensor
LED
2 LED Supported
2 LEDs(one is RED
，
one is Green)
Battery
Built in battery
（
80MAH Lion
）
Working Time
4 hours
Power Cable connector type
8 pin
Power Consumption
< 5Watts
The Arrow-L provides support for specialized hardware features through extended AT
commands. The features supported include the following.
GPS
The major functionality of the GPS system 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 system is
tracking or acquiring.
GPIO
The GPIO pins are presented to the external environment on the main connector. They are
general purpose bidirectional lines capable of providing system interrupts to generate a report
or drive logic levels to external devices. These lines are 2.8V logic level and are 16V tolerant.
