user manual

6-4
Cisco Aironet 1400 Series Wireless Bridge Hardware Installation Guide. OL-4072-03
OL-4072-04
Chapter 6 Troubleshooting
Power Injector LEDs
The bridge uses a blinking code to identify various error conditions. The code sequence uses a two-digit
diagnostic code that starts with a long pause to delimit the code, followed by the LED flashing red to
count out the first digit, then a short pause, followed by the LED flashing red to count out the second
digit (see Table 6-2).
Power Injector LEDs
The power injector contains three LEDs to provide status information on the wired Ethernet link, the
bridge Ethernet link, and the bridge status. When the power injector is powered up, it sends a constant
discovery tone on the dual-coax cables to the bridge. When the bridge is connected to the dual-coax
cables, it returns the discovery tone to the power injector. When the power injector detects the returned
discovery tone, it applies +48 VDC to the dual-coax cables to the bridge.
When power is applied to the bridge, the bridge activates the bootloader and begins the POST operations.
The bridge begins to load the IOS image when the Post operations are successfully completed. Upon
successfully loading the IOS image, the bridge initializes and tests the radio.
Table 6-2 Bridge LED Blinking Error Codes
LED
Blinking Codes
Description
First
Digit
Second
Digit
Ethernet 2 1 Ethernet cable problem—verify that the cable is properly
connected and not defective. This error might also indicate a
problem with the Ethernet link. If the cable is connected
properly and not defective, contact technical support for
assistance.
Radio 1 2 Radio not detected—contact technical support for assistance.
1 3 Radio not ready—contact technical support for assistance.
1 4 Radio did not start—contact technical support for assistance.
1 5 Radio failure—contact technical support for assistance.
1 6 Radio did not flash its firmware—contact technical support
for assistance.