GE MDS entraNET 900, Техническое руководство

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05-4055A01, Rev. E MDS entraNET Technical Manual 167
7.1 TROUBLESHOOTING
Successful troubleshooting of a wireless system is not difficult, but
requires a logical approach. It is best to begin troubleshooting at the AP
radio, as the rest of the system depends on the AP for synchronization
data. If the AP has problems, the operation of the entire wireless
network is affected.
When communication problems are found, it is good practice to begin
by checking the simple things. Applying basic troubleshooting
techniques in a logical progression can identify many problems.
Multiple
Communication
Layers
It is important to remember the operation of the network is built upon a
radio communications link. On top of that are two data levels—wireless
MAC, and the data layer. The wireless aspect of the AP and the Remote
radios to be connected must operate properly so data-layer traffic can
function.
Radio Configuration There are over 50 parameters in the entraNET MS. With so many
settings, a parameter might be incorrectly set, and then what was
changed is forgotten.
To help you avoid these problems, we recommend creating an archive
of the transceiver profile in a Configuration File when your installation
is complete. This file can be reloaded into the transceiver to restore the
radio to the factory defaults or to known working settings. For details on
creating and archiving Configuration Files,
see “ PING Utility Menu”
on Page 90 .
GE MDS Assistance
If problems cannot be resolved using the guidance provided here, review
the GE MDS Web site’s technical support area for recent software or
firmware updates, general troubleshooting help, and service
information. Additional help is available through the GE MDS
Technical Support Department. (See
TECHNICAL ASSISTANCE on the
inside of the rear cover.)
7.1.1 Interpreting the Front Panel LEDs
An important set of troubleshooting tools are the LED status indicators
on the front panel of the transceiver. They should be checked whenever
a problem is suspected.
Table 2-2 on Page 26 describes the function of
each status LED. Table 7-1 on Page 168 provides suggestions for
resolving common system difficulties using the LEDs, and Table 7-3 on
Page 169 provides other simple techniques.