Cabletron Systems BRIM-T6 manual XMT Transmit, RCV Receive, STB Standby

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MONITORING AND TROUBLESHOOTING

XMT (Transmit)

When flashing Green, XMT indicates that the BRIM-T6 is transmitting traffic to the Token Ring network. When solid Red, XMT indicates that the BRIM-T6 is disabled.

When blinking Red, XMT indicates a speed fault condition, typically caused by a mismatch in ring speeds between the BRIM-T6 and the ring occupied by the device to which it is linked. See Section 2.3 for information about setting the correct ring speed.

RCV (Receive)

When solid Green, RCV indicates that the BRIM-T6 is currently enabled to receive Token Ring traffic, and when flashing Yellow, it indicates that it is currently receiving Token Ring traffic. When solid Red, RCV indicates that the BRIM-T6 is disabled by the host device.

STB (Standby)

When solid Yellow, STB indicates a standby condition: the BRIM-T6 is not ready or able to transmit data to the ring. Standby conditions are caused, typically, when the host device is initializing or when a TPIM is not attached to the BRIM-T6.

LNK (Media Link OK) on attached TPIM

When solid Green, LNK indicates that a connection exists between the BRIM-T6 and a node at the other end of the media segment. When off, (or also when Red on the TPIM-T1/-T2/-T4) this LED indicates either that the BRIM-T6 is not connected to another device or that the port is not receiving a signal.

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Contents BRIM-T6 USER’S Guide Page All Rights Reserved Order Number 9031288 September DOC Notice FCC NoticeVcci Notice Program License Agreement Cabletron Software Program LicenseExclusion of Warranty & Disclaimer Liability United States Government Restricted RightsContents Appendix B Media Specifications and Requirements Using this Manual Chapter IntroductionIntroducing the BRIM-T6 Media FlexibilityJumper Selectable Ring Speed Bridge/Routing ProtocolsSpanning Tree Algorithm STA Compliance BRIM-T6 ManagementBrim Specifications SafetyRelated Documentation EnvironmentGetting Help Networking PublicationsIntroduction Installing the BRIM-T6 Chapter InstallationUnpacking the BRIM-T6 Installing the BRIM-T6 into a MIM Installing the BRIM-T6 Installing the BRIM-T6 into a Standalone Device Configuring the BRIM-T6 Ring SpeedSPD Configuring and Installing TPIMs Tpim Configuration for Station Applications Installing TPIMs Chapter Connecting to the Network Connecting STP SegmentsConnecting UTP Segments Connecting Fiber Optic SegmentsConnecting Fiber Optic Segments Connecting to the Network Lanview Leds Chapter Monitoring and Troubleshooting16Mb Ring Speed XMT Transmit RCV ReceiveSTB Standby LNK Media Link OK on attached TpimChecking the Connection LED Specifications SummaryMonitoring and Troubleshooting Twisted Pair Tpim Pinouts Station Mode Appendix a Tpim SpecificationsFiber Optic Tpim Specifications Tpim Specifications Appendix B Media Specifications and Requirements Fiber OpticShielded Twisted Pair STP Impedance and AttentuationMaximum Lobe Length Unshielded Twisted Pair UTPMaximum Trunk Lengths Attenuation and Impedance Table B-4. UTP Voice Grade and Category 3 SpecificationsMaximum Lobe Lengths Media Specifications and Requirements