Dual SCSI Module

This document is the owner's guide for the Dual SCSI Module (PMAZC–AA), a single-ended TURBOchannel-to-SCSI controller. It is designed specifically for Alpha AXP systems and provides two additional SCSI ports. The guide includes the following sections:

• Module Description: Overview of system compatibility (OpenVMS AXP and DEC OSF/1 AXP) and installation limitations.
• Setting Module Jumpers: Instructions for configuring terminator jumpers and the flash memory write jumper.
• Installation: Guidelines for installing the module into system enclosures, including specific notes for DEC 3000 models.
• Verification: Procedures for confirming installation via system configuration displays and initial startup tests.
• Self-Tests: Commands for running console-mode diagnostics to troubleshoot the module.
• setid Utility: Instructions for updating SCSI IDs and bus speeds stored in the module's ROM.
• Boot Command: Information on using the boot command to specify boot devices.
• Technical Data: SCSI cabling recommendations and a detailed breakdown of port signals and pin designations.