Patton electronics 3324 Getting Started Manual

Contents

Patton electronics 3324 Getting Started Manual Manual pdf 67 page image

Installation 67Model 3324 VDSL Carrier-Class Aggregator Configuration Guide 5 • TroubleshootingInstallationVerify that all system components have been properly installed. If one or more components appear to be mal-functioning (e.g., the power cord or network cabling), test them in an alternate environment, where you aresure that all the other components are functioning properly.Transmission ModeThe default transmission mode of the RJ-45 ports is auto-negotiation. Therefore, if the Link signal is disrupted(e.g., by unplugging the network cable and plugging it back in again, or by resetting the power), the port willtry to reestablish communications with the attached device Model 3324 through auto-negotiation. If auto-negotiation fails, then communications are set to half duplex by default. Based on this type of industry-stan-dard connection policy, if you are using a full-duplex device that does not support auto-negotiation, communi-cations can easily be lost (i.e., reset to the wrong mode) whenever the attached device is reset or experiences apower fluctuations. The best way to resolve this problem is to upgrade these devices to products that will sup-port auto-negotiation.Cabling• Verify that the cable type is correct.• Be sure RJ-45 cable connectors are securely fastened into the correct ports.• Use 100W straight-through cables for all standard connections.• Use Category 5 cable for 100/1000Mbps Fast Ethernet connections, or Category 3, 4 or 5 cables for stan-dard 10Mbps Ethernet connections.• Be sure RJ21 phone wiring, use 18~26 gauge.• Make sure all devices are connected to the network. Equipment any have been unintentionally discon-nected from the network.• When cascading two devices using RJ-45 station ports at both ends of the cable (Model 3324 supports autoMDIX), without crossover cable can be used.Physical ConfigurationIf problems occur after altering the network configuration, restore the original connections, and try to track theproblem down by implementing the new changes, one step at a time. Ensure that cable distances and otherphysical aspects of the installation do not exceed recommendationsSystem IntegrityAs a last resort verify the switch integrity with a power-on reset. Turn the power to the switch off and then onseveral times. If the problem still persists and you have completed all the preceding diagnoses, contact yourdealer for assistance.CPE (Customer Premise/Remote) Side Starts Link Watch DogIf the CPE side (VDSL Modem) is on power standby for an excess of 20 minutes without connecting to theModel 3324, the link has failed. The users must power cycle the CPE once to clear and the CPE should recon-nect to the Model 3324.