3Com 5101T-FB-ST, 5101T-FB-SMA, 5101T-FB-FC manual Miscellaneous Errors

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Also, ensure that you have accounted for the distance reduction caused by external baseband repeaters that were added and by baseband segments connected to those repeaters.

Miscellaneous Errors

Many types of physical layer errors can occur if the controller AUI interface is Ethernet Version

1.0or not fully compliant with Version 2.0 and IEEE 802.3.

If errors occur:

1.Try switching between the Full Step and Half Step options on the 10BASE-FB Transceiver.

2.Verify that an IEEE 802.3 AUI cable is being used with 802.3 controllers

3.Verify that Ethernet V2.0 cables are being used with Ethernet V2.0 controllers.

Refer to the next section for more information on AUI cables.

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Contents 10BASE-FB Transceiver Installation Guide Page VDE Class B Compliance Copyright Statement Table of Contents EEE Version Page Page Preface Intended AudienceThis guide is divided into five sections Transceiver Overview Transceiver Top PanelTransceiver Top Panel Transceiver DIP Switch Settings Switch Setting DescriptionTransceiver Front Panel Transceiver Front PanelTransceiver Rear Panel Fiber link transmit and receive SQE Test PortsTransceiver Rear Panel Alternate Collision Mode Transceiver LED DescriptionsHigh Power PWR SQE TestInstallation Half Step ModeSite Preparation and Placement Unpacking Procedures Verifying Transceiver Switch Settings Transceiver DIP Switch Default SettingsPage Page Connecting to Ethernet V2.0 and Ieee 802.3 Controllers Connecting to Ethernet V2.0 and Ieee 802.3 Repeaters Connecting Fiber Cables Connecting the AUI Cable Verifying Physical Link Operation To verify physical link operationTroubleshooting Status LEDPage Troubleshooting Using the Status LEDs LEDTroubleshooting Using the Status LEDs Troubleshooting Using the Status LEDs Troubleshooting Link Problems Troubleshooting System Problems Excessive CollisionsLate Collisions and Failure to Defer Miscellaneous Errors Signal Differences Transceiver CablesEEE VersionWire Sizes Transceiver Cable Wire Sizes Cable Type Signal Pair Power PairAUI Cable Pinout Chart Cable PinoutsCO-A Troubleshooting Transceiver Cables Symptoms of Faulty Transceiver CablesCauses of Fault Transceiver Cables Specifications Cable RecommendationsGeneral Specifications General SpecificationsOptical Interface Specifications Optical Interface SpecificationsFiber Optic Cable Specifications Transmit Power SpecificationsTransmit Power Fiber Optic Cables CompatibilityAttachment Unit Interface Specifications AUI Specifications