User's Manual

20 | Page
Proprietary and Confidential Revised 10-11-11
Position (Bytes 2-8)
The Latitude and Longitude information is encoded in these bytes. Refer to Appendix B for
calculating the Lat and Long from this information.
Status (Byte 9)
The Status byte contains various operational information about the SXL1.
Battery Status (Bits 2:0)
These bits hold the current battery status, calculated by the device and reflected proportionally in this
field. Battery status starts at seven (7) and counts down in 12.5% resolution of usage. Replacing the
batteries will require the user to reset to this count using command 0x31. Battery calculations
suspend while in line power mode.
Report Mode (Bit 3)
When set to 0, the device is reporting a standard location message generated either from expiration
of an interval timer or an alarm input. When set to 1, the device is reporting location triggered by the
expiration of the subsequent interval timer.
Alarm Indication (Bit 4)
When set to 1, this denotes the location message is generated by an alarm. Bits 8:5 hold the
message cause.
Message Cause (Bits 8:5)
These bits hold the binary value of the message cause as shown in the table below:
Message Cause
Bit Pattern Description
0000 Standard Location Message
0001 Reed Switch
0010 Cut-wire (USB Cable) alarm
0011 Motion alarm
0100 Line Powered
0101 undefined
0110 undefined
0111 undefined
1000 Digital Custom Sensor 1
1001 Digital Custom Sensor 2
1010 Digital Custom Sensor 3
1011 Digital Custom Sensor 4
1100 Digital Custom Sensor 5
1101 Digital Custom Sensor 6