User's Manual

Any hardware or software reset will return the device to full power mode.

3.4 AT Command

TALON-LTE commands are AT extensions specific to TALON-LTE devices. They are closely

based on commands that are as similar as possible to other industry common devices and are

essentially subsets of standard TALON-LTE commands. Common commands used with LTE

modems supporting IP connectivity are not included within the TALON-LTE command set

extensions. These commands are left in their native structure.

Ack’ed Mode

UDP is not a 100% reliable connection and occasional reports or command/responses may be

lost. Since all commands have responses, the server can repeat any command to which there is

no response. In order to assure reliable reception of reports, Arsenal devices can be configured

either in Normal or Ack’ed mode to send the reports. In the Normal mode the reports are simply

sent “as is” with no acknowledgment from the server. In the Ack’ed mode every report sent is

expected to be acknowledged by the server by sending back an ACK message back. If

acknowledgement is not received within the specified timeout, the report is re-sent. If the report

is not acknowledged after the specified number of attempts, it is queued. If acknowledgement

is received after the report is queued (i.e. past timeout of the last attempt), it is ignored.

Report is not considered “complete” until its acknowledgement is received. Thus, if report X is

sent and report X+1 is triggered while waiting for acknowledgement of X, report X+1 will be

queued until such acknowledgement is received and only then sent. The Talon-LTE will attempt

to re-send queued report(s) every time a new report is triggered. If there is more than one report

queued, the reports will attempt to be sent in the order of triggering and only once the report is

acknowledged, the next report is attempted. This assures that reports are sent and received in

order.

Ack’ed mode assures that all reports are received, but adds overhead in time and data. Report

that is not acknowledged is sent again and eventually will be queued and sent again. The number

and frequency of re-tries is configurable via the Report Acknowledgement command

(AT+IONACK).

Event Report Format

Reports can be generated in either an ASCII representation of hex or as actual binary encoded

hex. The reporting format is selected via Report Format (AT+IONRF) command. Note that

while the logical content of the report is the same in both representations, the size for an ASCII

report is twice the size of actual numbers of bytes compared to binary representation.

3.5 Reset

There are a number of resets available on the device. Soft reset only restarts the software

running on the device. Hard reset is caused by resetting the whole basband module via a reset

pin. There is also an option to reset the GPS sub-system only.