3Com 5101T-FB-SMA, 5101T-FB-FC, 5101T-FB-ST manual SQE Test, High Power PWR

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SQE Test

When enabled, the collision detection capability of the transceiver is tested after each transmis- sion. If the test is successful, the SQE test (Signal Quality Error test, or heartbeat) signal is sent on the AUI to the attached controller. The default setting is enabled.

When disabled, this test is not performed and no SQE test signal is sent to the AUI. Always disable this function when connecting to an IEEE 802.3 repeater.

High Power (PWR)

When enabled, the optical power output on the main link is in the High range. The default setting is disabled, which invokes the optical power output on the main link in the Normal range.

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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