User Manual

7 Troubleshooting
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7 Troubleshooting
7.1 Techniques and Methodologies Used for Trou-
bleshooting
7.1.1 General Problems
This section lists some common problems that may occur and
cause a malfunction in the WIMAN system:
Bad RF-Link between STAR (Master) and ACCESS (Slave):
• STAR units are not synchronized ! see stat sync
• Bad hardware on the STAR or the ACCESS
-
Check RF statistics from the STAR to other ACCESS de-
vices ! see stat wl ext
If all other connections are functioning properly,
STAR is not defective.
• If the star is working correctly consider the following ques-
tions:
-
Is the ACCESS device configured correctly (correct STAR,
correct sector)?
-
Are there any obstacles between the STAR and the
ACCESS?
-
Is the antenna cable attached correctly?
-
Is the antenna adjustment correctly?
-
Is the ACCESS device itself defective (defective transmit-
ting or receiving part)? ! If so, exchange the device.
-
Are two ACCESS devices within a network configured with
the same NodeID? Check the ACCESS configuration, the
network configuration and the documentation of the other
ACCESS radio modems within in the same network.
No data communication from the STAR to the ACCESS:
• Check the radio connection between the ACCESS and the
STAR.
• Check the wiring of the STAR and ACCESS
-
Check the other radio modems attached to this STAR
If data can be transmitted to the other ACCESS de-
vices then the wiring at the STAR is OK.