Cisco Cisco Aironet 1400 Wireless Bridge 설치 가이드
12
Cisco Aironet 1400 Series Outdoor Wireless Bridge 28-dBi Dish Antenna
78-15547-01
Installation Notes
Positioning the Antenna Using LED Indications
You can position the internal antenna using LEDs after the bridge successfully associates. In the
installation mode, the Install LED is continuously amber or green when the bridge has associated with
the remote bridge. The Ethernet, status, and radio LEDs then display signal strength (see
installation mode, the Install LED is continuously amber or green when the bridge has associated with
the remote bridge. The Ethernet, status, and radio LEDs then display signal strength (see
).
When using LEDs to maximize the signal, adjust the antenna until as many LEDs as possible are on and
the rest are blinking as quickly as possible. With all three LEDS on, the signal is good enough to support
the maximum data rate.
the rest are blinking as quickly as possible. With all three LEDS on, the signal is good enough to support
the maximum data rate.
To position the antenna using the LED indicators, follow these steps:
Step 1
Verify that the Install LED is either amber or green.
Step 2
Loosen the angle adjustment bolts on the antenna’s star mounting plate.
Step 3
Adjust the horizontal turnbuckle to slowly sweep the antenna to the left and right of the signal path while
you watch for peaks in signal strength.
you watch for peaks in signal strength.
Step 4
Return the antenna to the position where the signal is strongest, or if there are two similar peaks, halfway
between them.
between them.
Step 5
Secure the horizontal adjustment by tightening the horizontal angle adjustment bolts on the star
mounting plate.
mounting plate.
Step 6
Adjust the vertical turnbuckle to slowly sweep the antenna up and down while you watch for peaks in
signal strength.
signal strength.
Step 7
Return the antenna to the position where the signal is strongest, normally where all signal strength LEDs
are on. If you are unable to turn on all LEDs, adjust for a maximum signal.
are on. If you are unable to turn on all LEDs, adjust for a maximum signal.
Step 8
Secure the vertical adjustment by tightening the vertical angle adjustment bolts on the star mounting
plate.
plate.
Table 2
Install Mode Signal Strength Display
Signal Level (dBm)
Ethernet LED
Status LED
Radio LED
>–42
On
On
On
–45 to –42
Fast blink
On
On
–48 to –45
Medium blink
On
On
–51 to –48
Slow blink
On
On
–54 to –51
Off
On
On
–57 to –54
Off
Fast blink
On
–60 to –57
Off
Medium blink
On
–63 to –60
Off
Slow blink
On
–66 to –63
Off
Off
On
–69 to –66
Off
Off
Fast blink
–72 to –69
Off
Off
Medium blink
–75 to –72
Off
Off
Slow blink
< –75
Off
Off
Off