VAX 4000 (BA400-Based Systems DSSI Upgrade Installation Guide

This document, the "VAX 4000 (BA440-Based) Systems DSSI Upgrade Installation Guide" (Order Number: EK-VV4SY-IG. B01), provides step-by-step instructions for upgrading VAX 4000 systems with a Dual DSSI (Digital Storage Systems Interconnect) bulkhead assembly.

Intended Audience: Digital Services personnel and licensed self-maintenance customers.

Key Content: The guide is divided into two main chapters, detailing the installation process for different VAX 4000 system configurations:

• Chapter 1: Installation (for BA440-Based Systems)
• Chapter 2: Installation on a Rackmount System (for BA441-Based Systems)

Both chapters cover:

• System Requirements: Specifies the need for VMS software (Version 5.5–2H4, VMS 6.1, or later), compatible CPU types (KA681, KA691, KA692, or KA694), and a Rev. K01 or higher BA440/BA441 backplane.
• Kit Inventory: Lists all components included in the DSSI upgrade kit.
• Pre-installation Steps: Instructions on unpacking the kit, verifying system operation (optional diagnostics), performing a VMS shutdown, and the customer's responsibility to back up system software.
• Installation Procedure: Detailed guidance on how to:
  • Remove existing components (e.g., ISEs, Q-bus bulkheads and modules, CPU, memory).
  • Attach DSSI bulkhead labels.
  • Install DSSI bulkhead assemblies.
  • Route DSSI cables properly within the enclosure, including using cable spacers for airflow.
  • Install the DSSI daughter card onto the CPU module.
  • Reconnect all modules and cables.
  • Attach DSSI terminators to unused ports.
  • Power up the system, perform a VMS boot, and run diagnostics to verify successful operation.

The document emphasizes safety precautions like using antistatic equipment and provides notes and suggestions throughout the installation process.