User's Manual

Confidential Preliminary – Subject to Change
 2010 China Mark, Ltd. T/A Montage Asia Page 13 of 19
Features
Arrow acts like a GSM modem and responds to AT commands issued to it from either a
physical serial port connection or to AT commands issued to it through SMS or a UDP
connection.
With regard to text messages, ion “reads” all of its own text messages and tries to
interpret each message as an AT command. SMS text may be sent to an endpoint
through a CSD or GPRS connection interchangeably.
Key superset functions outside that of typical GSM/GPRS modems are required to
support intrinsic ion Features. These include:
 Automatic field lockup recovery
o Dedicated hardware watchdog with power and reset cycle
o GSM Circuit Switched Data (CSD) commands
 Hard reset
 Restore factory defaults
 Instantiate code download using FOTA
 Set Caller ID (CID) qualifier
 Specialized GPS functions including
o GPS data reporting
o GPS module status reporting
o GPS power control
o Setup and monitor geographic fences
 Device initiated UDP reporting
o Recurring schedule event
o Low battery condition
o Change in GPIO state
o Report record queue
o User defined IP addresses
o Geographic fence violation
 Virtual AT command processor over SMS or a UDP connection
 Data logging to flash
o OTA read of entries