User's Manual

SkyZhone 45 Installation Guide 53
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SYSTEM MAINTENANCE
This chapter describes basic system maintenance. It contains the following
sections:
• Physical maintenance, page 53
• Diagnostics using the b byte, page 53
• IDU LEDs, page 55
Physical maintenance
The SkyZhone 45 system does not require any regular maintenance but it is
important that you monitor the radio link at regular intervals to make sure that
the radio and all the link components are operating properly and that the link
conditions have not changed.
Because the antenna and ODU are exposed to the elements and are often in
locations where others can access them, they should be inspected on a regular
basis. Regularly check these things:
• Antenna mounting hardware. This can be vibrated loose by the wind.
• Cables. Connecting cables that are exposed on rooftops can be cut when
walked on.
• Cables that cross rooftops covered in crushed rock over tar can be cut by
the sharp stones if someone walks on them.
Diagnostics using the b byte
After each full length command the system is given, the ODU answers with a
response that contains the first character of the command. The second
character is the b byte, which is a way to measure SkyZhone 45 system status.
The response from the ODU looks like this example:
> S b 0 0 0 0 0 x
The third character is the b byte. This HEX character displays information
about the status of the ODU. The b byte should be 0 (zero) when the system is
operating normally. The higher the HEX indication, the more severe the
condition. The tenth character in this response is a check-sum digit, which
may vary. The other digits in the response are not significant.