Troubleshooting Chapter 9WinLink™ 1000 User Manual Release 1.9 9-19A “Dying-Gasp” circuit identifies the power failure at a minimum interval of20 milliseconds before the ODU or IDU powers off. During that interval amessage notifying the power failure is sent to opposite site. External alarmoutput number 4 indicates power failure at the opposite site.TroubleshootingUse the following table to troubleshoot LED fault indications:Use the following table to troubleshoot faults in the system:.Table 9-7: LED fault indicatorsLED Status RemedyPWR Off Check that power is connected to the IDUIDU Red Check that the IDU/ODU cable is properly wired and connected.ODU Red Check that the IDU/ODU cable is properly wired and connected.AIR I/FOrange Complete the installation procedure from the RADWIN ManagerRed Check the antenna alignment. Check that the radio configuration of both site A andsite B units are the same (Channel and Link ID).SVCOrangeRedOffAlarm detected at the Site B interface or Local or Remote loopbackAlarm detected at the Site A interfaceEthernet only IDU or E1/T1 not configuredHSSRedOrangeHSS not operational due to improper signal detection. This ODU is not transmittingHSS is operational. One of the following conditions apply:• This ODU is a master that is generating signals and detecting signals• This ODU is a master that is generating signals but detected improper sig-nals• This ODU is a client "Continue Tx" but is not detecting signals• This ODU is a client "Disable Tx" and is detecting signals from multiplesourcesAll orange cases transmit.STBY RedOrangeMHS mode Primary, Link state not activeMHS mode Secondary, Link state activeTable 9-8: System TroubleshootingSymptom RemedyNo powerEnsure that power is connected to the IDUEnsure that the ODU cable is properly wired and connectedNo signalComplete the installation procedure from the RADWIN ManagerCheck the antenna alignment. Check that the radio configuration of both site A and site Bunits is the same (channel and Link ID)Weak signalreceivedCheck the antenna alignment, reconfigure the linkCheck the alignment tone sounds the Best Signal sequence
