Cisco Systems 1300 Series Aligning the Bridge Antenna Using RSSI LED Indications, RSSI Level dBm

Chapter 3 Mounting and Alignment Overview

Aligning the Bridge Antenna Using RSSI LED Indications

Aligning the Bridge Antenna Using RSSI LED Indications

You can align the integrated antenna using LEDs after the unit successfully associates with a remote bridge. In the installation mode before association to another bridge, the Install LED blinks amber. If the unit associates to a root bridge, the Install LED turns amber. If the unit does not associate to a root bridge in the first 60 seconds, the Install LED blinks green to indicate that beacons are being transmitted and that the unit is waiting for another non-root bridge to associate.

During the first 20 seconds after association, the unit reads the receive signal strength indictor (RSSI) levels and records the maximum level received. After 20 seconds have elapsed, the Install LED turns amber and the Ethernet, status, and radio LEDs display the relative RSSI levels compared to the maximum received. The RSSI LED indications are shown in Table 3-3).

Note For the signal level (dBm), a smaller number represents a stronger signal because the signal level is given as a negative value.

Table 3-3	Bridge LED Installation Mode RSSI Display
RSSI Level (dBm)		Ethernet LED	Status LED	Radio LED
> –44		On	On	On
–47 to –44		Fast blink1	On	On
–50 to –47		Medium blink2	On	On
–53 to –50		Slow blink3	On	On
–54 to –53		Off	On	On
–57 to –54		Off	Fast blink1	On
–60 to –57		Off	Medium blink2	On
–63 to –60		Off	Slow blink3	On
–66 to –63		Off	Off	On
–69 to –66		Off	Off	Fast blink1
–72 to –69		Off	Off	Medium blink2
–75 to –72		Off	Off	Slow blink3
< –75		Off	Off	Off

1.Slow blinking rate of 1 blink/sec.

2.Medium blinking rate of 2 blinks/sec.

3.Fast blinking rate of 4 blinks/sec.

When using LEDs to maximize the signal, adjust the antenna until as many LEDs as possible are turned on and the rest are blinking as fast as possible.

Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide

OL-5048-02 3-7