ATTO Technology UL25 Termination, Terminating the Single-Ended Atto ExpressPCI UL2S and UL2D

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Termination

The SCSI bus is a chain of SCSI devices. The devices at both ends of any SCSI chain must be terminated for the SCSI bus to function correctly. A SCSI device chain can be configured in three different ways: internal, external and an internal/external SCSI device chain..

Remember an ATTO ExpressPCI Ultra2 SCSI adapter is also a SCSI device and may require termination depending upon the configuration. Be sure to use the correct terminator. Single-ended, low voltage differential and differential SCSI buses use different types of terminators that should not be mixed.

Terminating the Single-Ended ATTO ExpressPCI UL2S and UL2D

Your ATTO ExpressPCI Ultra2 SCSI host adapter incorporates advanced termination circuitry that allows it to automatically configure its own termination.

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ATTO Technology, Inc.

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Contents Atto Technology, Inc Page Table of Contents Page What is Atto ExpressPCI? WelcomeUnpacking Atto ExpressPCI UL2S adapter Installation Requirements Plug and PlayScsi Manager 4.3 Compatible About This ManualAtto ExpressPCI Quick Installation For Macintosh Atto ExpressPCI Quick Installation For PCGetting a Fast Start Atto ExpressPCI Ultra2 User’s Manual Cabling for the Atto ExpressPCI UL2S & UL2D Scsi Adapters Cabling and TerminationCable Types External Connectors Termination Terminating the Single-Ended Atto ExpressPCI UL2S and UL2DHardware Installation Before Installing your Atto ExpressPCI Scsi AdapterPlan your Scsi device connections Set Scsi device terminationHardware Installation Troubleshooting Atto ExpressPCI UL2D Model Appendix a Radio & Television InterferenceDeclaration of Conformity Canadian StandardsAppendix B Specifications GeneralEnvironmental and Physical Specifications Advanced ScsiOperating Environments Appendix C Scsi Device & Cabling Limitations Scsi Type Single-Ended DifferentialMaximum Bus LengthScsi Workgroup Solutions Scsi Host AdaptersScsi Expansion Units Scsi Conversion UnitsHOW to Contact Atto TECHNOLOGY, INC Atto Technology, Inc