Patton electronics 3324 Getting Started Manual

Contents

Patton electronics 3324 Getting Started Manual Manual pdf 66 page image

5 • Troubleshooting Model 3324 VDSL Carrier-Class Aggregator Configuration Guide66 Diagnosing VDSL indicatorsDiagnosing VDSL indicatorsThe Model 3324 is easily monitored through its comprehensive panel indicators. These indicators assist thenetwork manager in identifying problems the Model 3324 may encounter. This section describes the commonproblems you may encounter and possible solutions.System DiagnosticsPower and Cooling ProblemsIf the POWER indicator does not turn on when the power cord is plugged in, you may have a problem withthe power outlet, power cord, or internal power supply as explained in the previous section. However, if theunit should turn itself off after running for a while, check for loose power connections, power losses or surgesat the power outlet, and verify that the fan on back of the unit is unobstructed and running prior to shutdown.If you still cannot isolate the problem, then the internal power supply may be defective. In this case, contactyour supplier for assistance.Symptom Cause SolutionPOWER indicator does not lightup (green) after power on.Defective power outlet, powercord, internal power supplyCheck the power outlet by trying anotheroutlet that is functioning properly. Checkthe power cord with another device. Ifthese measures fail to resolve the prob-lem, have the unit power supplyreplaced by a qualified distributor.Link indicator does not light up(green) after making a connec-tionNetwork interface (e.q., a net-work adapter card on theattached device), networkcable, or switch port is defective1. Verify the switch and attached deviceare powered on.2. Be sure the cable is plug into boththe switch and correspondingdevice.3. Verify that the proper cable type isused and its length does not exceedspecified limits.4. Check the adapter on the attacheddevice and cable connections forpossible defects.5. Replace the defective adapter orcable if necessary.I had a VDSL link. But, after dis-connecting the line for severalminute, there is no link anymore.This is normal behavior for the modem.The LWD (Link Watch Dog) is automati-cally activated in the VDSL modem,when ever is no link after a specifiedtime. Users just re-plug the power ofVDSL modem, and then they can linkagain and solve this problem.