Afar AR24027, Руководство оператора

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AR24027 Operator’s Manual
3-10
Minimum Distance calculation to
avoid Antenna Radiation Hazard (exposure of 1 mW/cm
2
)
Antenna Gain (dBi): 9 18 24
Max. Output Power
23 23 23
MPE safe distance (cm) 11* 28* 63*
*
NOTE: For fixed location transmitters, the minimum separation distance is
2 m, even if calculations indicate a lower MPE distance.
3.3 Upgrading the Firmware.
3.3.1 Description
The operational firmware for the AR24027 is stored in Flash PROM and can be easily updated. The
Flash PROM can hold multiple versions of the firmware simultaneously. The table below lists some
of the “File Utility” commands used to download and manage the various files stored in Flash
PROM. A more detailed explanation for each command can be found in section 4.
File Utility command summary
Command Description
directory Lists all files stored in Flash PROM
delete-file filename Deletes the specified file from the directory
download-file path/filename Downloads the specified file from the PC path/filename
into the Flash PROM
set-default-program filename
Sets the indicated filename as the default program to run
after power up
run-file filename loads the indicated program into RAM and executes it.
New firmware versions are made available from time to time at the following page in our website:
http://www.afar.net/support.htm
The firmware files (for point-to-multipoint) are named:
pmpNN_NN.bz (binary zipped file for downloads through the Ethernet port)
pmpNN_NN.dwn (ascii file for download through the serial port, or via Telnet)
where NN_NN is the firmware version number. The website contains instructions for transferring the
files into your PC.
A new file can be downloaded into the radios in one of three ways: (1) Using the “econ” program
running in a PC connected to the same physical LAN as one of the radios. This is the fastest method