Patton electronics 2960 Getting Started Manual

Also see for NetLink 2960 RAS: Datasheet Administrator's reference guide Getting started guide

Contents

Patton electronics 2960 Getting Started Manual Manual pdf 56 page image

5 • Troubleshooting and maintenance Model 2960/2996 RAS Getting Started Guide56 IntroductionIntroductionThis chapter describes troubleshooting and fault analysis that can be performed by the operator. If you requiremore help, refer to Chapter 6, “Contacting Patton for assistance”. Refer to table 4 for a list of common symp-toms and suggested remedies.Note The following information assumes that there is only one failureinvolving the RAS and that if you perform the corrective actionlisted, it will solve the problem. If you are unable to correct a failure,refer to Chapter 6, “Contacting Patton for assistance”.Table 4. SymptomsProblem Corrective ActionPOWER LED is extinguished Verify that power is being supplied to the RAS.POWER LED is flashing One of the power supplies has malfunctioned. The RAS will function nor-mally indefinitely with one power supply, so you can wait until a low traffictime, then refer to “Replacing the RAS” on page 59 to replace the RAS.CPU FAIL LED is lit CPU has failed. As soon as possible, unplug both power cablesfrom the RAS, wait 30 seconds, then plug the cables back into theRAS to see if the problem disappears. If the CPU FAIL LED is still litafter the RAS completes the power-up cycle, refer to “Replacingthe RAS” on page 59 to replace the RAS.ALARM LED is lit Indicates that an alarm condition has been detected.SYSTEM LED is extinguished The RAS is not functioning properly. As soon as possible, unplug bothpower cables from the RAS, wait 30 seconds, then plug the cables backinto the RAS to see if the problem disappears. If the SYSTEM LED is still litafter the RAS completes the power-up cycle, refer to “Replacing theRAS” on page 59 to replace the RAS.10/100 ETHERNET yellow LED isextinguished• A valid link has not been detected. Verify that the cable is pluggedinto the hub, switch, or workstation and the RAS.• Verify that the hub, switch, or workstation is powered on.• Replace the cable. If the problem still exists, refer to “Replacing theRAS” on page 59 to replace the RAS. If the problem still exists, trou-bleshoot the hub, switch, or workstation.