Cisco Cisco Aironet 1400 Wireless Bridge Guía De Instalación

If you are still unable to reduce the RSSI voltage level to 1.95 volts, change the polarization of the 
link 2 bridges (bridges B and D). For example; change the antenna polarization from vertical to 
horizontal.

At Site 2, measure the isolation between bridge C and D by following these steps:

Turn off bridge A for this measurement.

Activate the link 2 bridge (bridge D) as a non-root bridge and the link1 bridge (bridge C) as a root 
bridge and let bridge D associate to bridge C.

Connect a voltmeter to the RSSI port of bridge D and verify that the voltage is 1.95 volts (–40 dBm) 
or less. If the voltage exceeds 1.95 volts, move the bridge farther away and repeat this step.

Slowly rotate the antenna of bridge D a few degrees to the left and to the right and verify that the 
RSSI level does not rapidly spike above 1.95 volts. If the voltage peaks above 1.95 volts, move the 
bridge farther away and repeat this step.

After you verify the isolation of the second bridge link, you must properly set the root and non-root 
bridge settings for both links, align the link 2 bridge antennas, and verify proper link 2 operation.

The following documents provide additional information about the wireless bridge:

For information on obtaining documentation, submitting a service request, and gathering additional 
information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and 
revised Cisco technical documentation:

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