User's Manual

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The software image will now be downloaded to the unit where it will be stored in RAM until it is
committed to the units flash memory. This download should only take a few seconds.
NEW SCREEN SHOT The unit being upgraded will now display its current flash memory status.
The user should ensure that he is happy to proceed before pressing the “Continue” button. The
user has the option to bail out at this point by pressing the “Abort“ button. On pressing the
“Continue” button the user should ensure that the power is not cycled, or any other functionality
accessed, until the next screen is displayed. This process can take up to 30 seconds.
NEW SCREEN SHOT When the software image has been written to flash memory the above
screen will be displayed showing the status of the software download. If this screen is not dis-
played after 30 seconds this could indicate a problem with the memory update process. The user
should now power cycle the unit to start using the new software image. The units boot software
will automatically determine the health of the newly downloaded software image. If there are
any problems the boot code will revert to a protected operational software image installed during
manufacturing.
After the power cycle the user should check that the required software image is loaded and
running by re-entering the Upgrade page where the software bank status will be displayed.
6.3.4 DFS Pages
This page is used to control and display information about the units DFS functionality. The only
user configurable attributes are the page refresh period and channel usage.
The three upper displays show the combined and individual channel status. The colours denote
the status of each of the channels according to the following table.
Yellow
Active The channel is being used for connection
Green Available The channel is available for use
Orange Interference The channel has interference above the interference threshold
Red Radar The channel has a very high level of interference
Black Barred The channel has been barred from use
In the “Local Configuration” the interference threshold can be set. A normal value for this is
about -80 dBm. When the interference is above this level the display will change to orange. The
available channels are those below the interference threshold which are not barred. The active
channel number is also displayed as a number.
In the “Peer Configuration” section the configuration of the other end of the link is given.
In the “Spectrum Allocation” section the centre channel frequency range is given and the channel
step size.
In the Barred Channel section the ability is given to not allow certain channels to be used. This is
for barring the frequency range of the centre frequency of the channel. There are three separate
ranges that can be chosen giving many possibilities.