User guide

45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 79 of 113
7.2 Radio
7.2.1 No Activity
If communication over the radio link has been lost and the unit at the other end of the link can be managed on
its local network. The following procedure should be adopted:
If there is no wireless activity then the configuration should be checked. It is essential that the following items
are correct
• Check that the software at each end of the link is the same version
• Check that the Target Mac address has not been mis-configured at each end of the link.
• Check Range
• Check Tx Power
• Check License key
• Check Master Slave
• Check for Alarm conditions on Home page
• Check that the link has not been further obscured or the ODU misaligned.
• Check the DFS page at each end of the link and establish that there is a common quiet
wireless channel to use.
If there are no faults found in the configuration and there is absolutely no wireless signal retry the installation
procedure. If this doesn’t work then the ODU may be faulty.
7.2.2 Some Activity
If there is some activity but the link is unreliable or doesn’t achieve the data rates required then
• Check that the interference has not increased using the DFS measurements
• If a quieter channel is available check that it is not barred
• Check that the path loss is low enough for the communication rates required
• Check that the ODU has not become misaligned