3Com 5101T-FB-FC, 5101T-FB-SMA, 5101T-FB-ST manual Eee, Version

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cables occurs in the shielding and grounding of the individual signal and power pairs. IEEE 802.3 and Ethernet V2.0 specify a requirement for signal isolation due to AC-coupling of the AUI connection. The V1.0 standard does not contain this requirement.

The three standards specify different techniques for shielding and grounding.

EEE 802.3

All shields of the individual signal and power pairs are connected to pin 4. The overall AUI cable shield is connected to the AUI connector shell to provide a cable ground. Pin 1 is not used.

Version 2.0

All shields are connected to pin 1 and the AUI connector shell. Pin 4 is not used. Most Ethernet cables are built this way.

Version 1.0

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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 SpecificationsTransmit Power Specifications Transmit PowerFiber Optic Cable Specifications Fiber Optic Cables CompatibilityAttachment Unit Interface Specifications AUI Specifications