Cabletron Systems BRIM-T6 manual Checking the Connection, LED Specifications Summary

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MONITORING AND TROUBLESHOOTING

Table 4-1. LED Specifications Summary

LED

Status

Description

 

 

 

 

 

 

16Mb (Ring Speed)

Solid Yellow

16 Mbps

 

Off

4 Mbps

 

 

 

XMT (Transmit)

Flashing Green

Transmitting Traffic

 

Solid Red

Disabled

 

Blinking Red

Speed Fault Error

 

 

 

RCV (Receive)

Solid Green

Enabled

 

Flashing Yellow

Receiving Traffic

 

Solid Red

Disabled

 

 

 

STB (Standby)

Solid Yellow

Standby

 

 

 

LNK (Link)

Solid Green

Media Link OK

 

 

 

4.2 CHECKING THE CONNECTION

This section provides a checklist for troubleshooting network connection problems.

The LNK LED on the TPIM lights green when there is an established link between the BRIM-T6 and the device at the other end of the media connection. If, however, the LNK LED lights red or is not lighted, a link has not been established. To resolve the problem, try the following procedures:

Check that the host device and the device at the other end of the segment have power.

Check that the TPIM is securely installed in the BRIM-T6 and that the BRIM-T6 is securely installed in the host device.

Check for correct connector-to-port attachments at the BRIM-T6 and the destination device.

Inspect the cabling system (cable and connectors) for damage and replace damaged components.

4-3

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Contents BRIM-T6 USER’S Guide Page All Rights Reserved Order Number 9031288 September Vcci Notice FCC NoticeDOC Notice Cabletron Software Program License Program License AgreementUnited States Government Restricted Rights Exclusion of Warranty & Disclaimer LiabilityContents Appendix B Media Specifications and Requirements Chapter Introduction Using this ManualMedia Flexibility Introducing the BRIM-T6Bridge/Routing Protocols Jumper Selectable Ring SpeedSpanning Tree Algorithm STA Compliance BRIM-T6 ManagementSafety Brim SpecificationsRelated Documentation EnvironmentNetworking Publications Getting HelpIntroduction Unpacking the BRIM-T6 Chapter InstallationInstalling the BRIM-T6 Installing the BRIM-T6 into a MIM Installing the BRIM-T6 Configuring the BRIM-T6 Ring Speed Installing the BRIM-T6 into a Standalone DeviceSPD Configuring and Installing TPIMs Tpim Configuration for Station Applications Installing TPIMs Connecting STP Segments Chapter Connecting to the NetworkConnecting Fiber Optic Segments Connecting UTP SegmentsConnecting Fiber Optic Segments Connecting to the Network 16Mb Ring Speed Chapter Monitoring and TroubleshootingLanview Leds RCV Receive XMT TransmitSTB Standby LNK Media Link OK on attached TpimLED Specifications Summary Checking the ConnectionMonitoring and Troubleshooting Fiber Optic Tpim Specifications Appendix a Tpim SpecificationsTwisted Pair Tpim Pinouts Station Mode Tpim Specifications Fiber Optic Appendix B Media Specifications and RequirementsImpedance and Attentuation Shielded Twisted Pair STPMaximum Trunk Lengths Unshielded Twisted Pair UTPMaximum Lobe Length Table B-4. UTP Voice Grade and Category 3 Specifications Attenuation and ImpedanceMaximum Lobe Lengths Media Specifications and Requirements