FireLine System Protocol Manual
3
Raveon Technologies Corp.
1. Overview
The FireLine modem (as well as the RV-M3 series of modules) operate in two
modes, the “normal” data transmission/reception mode, and the COMMAND
mode. By “normal” mode, this is the mode where two or more FireLine modems
exchange data over-the-air. This is the mode the modem is in when it power on,
and is normally used to send data.
When the modem is in the COMMAND mode (send +++ to enter this mode), the
user may:
1. Issue RF Test commands useful for tuning and testing the FireLine.
Certain commands are provided to allow the user to key the transmitter and
send various test patterns.
2. Review the current configuration using various AT commands.
All
MODEM settings may be reviewed using various AT commands. The ATSH
command will cause the FireLine to output an overview of all of its major
parameters.
3. Modify the current configuration using various AT commands.
The user
may change ID codes, packet length, data rates, etc… using the AT
commands when the MODEM is in the COMMAND mode.
4. Read MODEM statistics using certain AT commands
. These statistics are
read using the ATST command, and are used to monitor the operation of the
modem. The signal-strength history of previous receptions may also be
displayed using the ATHS command.
5. Issues Remote Procedure Requests (RPRs).
While the FireLine is in the
COMMAND mode, certain RPR commands allow the user or user application
to request other FireLine modems in the system (via an over-the-air request),
to execute commands or provide information. Users may “Ping” other
modems, request other modems statistics, history, RSSI, and configuration
data. RPRs are issued in the “background”, and in most cases, the FireLine
system and other modems are not aware of the RPR communications.
Note, that if no valid commands are received within 60 seconds, the modem will
exit the COMMAND mode, and automatically return to the “normal” mode of
operation.
The following 5 sections describe the features of the COMMAND mode.
2. Radio Test Related Commands
2.1. RF Test Commands
These command are for FireLine bench testing only. Not for use in the field.
The following commands may be entered when a FireLine is in the command
mode. They allow a technician to measure various RF parameters such as power
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