Cisco Cisco Aironet 1310 Access Point Bridge Guía De Instalación

The goal when positioning a directional antenna is to align the local antenna for maximum received 
signal strength using the LED indications. The LEDs are convenient and easy to use. 

Normally, you observe a single large peak as you pan the antenna across the signal path. However, if the 
antennas are not well positioned during installation, you may observe two peaks of roughly equal 
amplitude. Think of the receive signal as a target (see 

The target consists of concentric rings, with the strongest signal at the center, surrounded by a weak area, 
and then a moderately strong side lobe. As you scan across the signal, you can miss the strong center 
signal and encounter two peaks of roughly equal amplitude, as shown by the horizontal dashed line. If 
you position the antenna on one of these weaker peaks and subsequently adjust the vertical position, you 
miss the maximum signal area completely. Instead, you must locate the two peaks and center the antenna 
between the peaks. The vertical scan then crosses the center point where the signal level is maximum.

You can position the integrated antenna or a directional external antenna using the LEDs only after the 
bridge successfully associates with the remote bridge. In installation mode, the Install LED is continuous 
amber or green when the bridge has successfully associated. For the first 20 seconds following 
association, the bridge reads the received signal strength indication (RSSI) levels from the received 
packets and records the maximum value. After 20 seconds, the Ethernet, status, and radio LEDs on the 
bridge indicate relative RSSI readings (see 

) compared to the maximum recorded during the 

initial 20 seconds. 

Medium signal level

Strong signal level

Weak signal level

Midpoint between peaks

Horizontal

Vertical

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