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Adapter Installation

Termination

Compaq VAX™-SCSI Ultra SCSI Host adapters include on-board

Differential SCSI drivers and termination. The Comapq adapter is always at

the end of the SCSI chain, and therefore always must terminate the SCSI bus.

An external SCSI Connector and cabling is provided for connection to

external SCSI devices.

Correct installation of your adapter requires that you first understand the

basic rules of the SCSI bus and correctly configure the termination based on

the position of the external devices on the bus. In order for a SCSI bus to

operate, it must be electrically terminated at both ends.

Your VAX™-SCSI adapter is at the end of the SCSI bus and will always

have termination enabled.

You must place a Differential SCSI terminator at the LAST device on the

SCSI chain. No other devices on the bus should provide termination.

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Compaq Ultra SCSI Adapter Guía de usuario Pagina 14