DWMBB VAXBI Installation Guide

This document, the "DWMBB VAXBI Installation Guide" (Order Number EK-DWMBB-IN.001), provides instructions for installing the DWMBB-LA VAXBI PIU (Plug-in Unit) and the DWMBB-LB upgrade kit into VAX 7000 and 10000 systems and their expander cabinets, which utilize LSB platforms.

Key aspects covered:

• DWMBB-LA Kit: Installs the VAXBI PIU assembly (front and rear enclosures, VAXBI card cage, power regulators) and connects the first six-slot VAXBI bus.
• DWMBB-LB Upgrade Kit: Connects a second six-slot VAXBI card cage, enabling a second independent VAXBI bus.
• System Requirements: The VAXBI PIU occupies quadrants 3 and 4 of the cabinet and requires an XMI PIU to be present in quadrants 1 and 2 of the same cabinet for operation. A system can support up to six six-slot VAXBI buses across cabinets.

• Installation Process:

  • Preparation: Checking kit contents, orderly system shutdown, turning off power, and removing airflow plates.
  • Enclosure Installation (for DWMBB-LA): Installing the front card cage enclosure (quadrant 3) and the rear cable enclosure (quadrant 4), including preparing cable routing and installing EMI shields between the XMI and VAXBI enclosures.
  • DWMBB Adapters Installation (for both kits): Cabling the XMI and VAXBI backplanes (using signal cables 17-01897-03) and installing the DWMBB/A (XMI module, T2018) and DWMBB/B (VAXBI module, T1043) adapter modules into their respective card cage slots. Emphasizes wearing an antistatic wrist strap.

• Acceptance and Troubleshooting: Details how to restore power, check self-test results on the console, inspect DWMBB module LEDs (yellow for pass, red for error), and use the show configuration command to verify installation. It also provides a troubleshooting checklist for issues like no power, intermittent module response, or modules not appearing in self-test results, including advice on cleaning connectors.

• Power Requirements: Appendix A lists VAXBI PIU power supply ampacities and typical current requirements for various VAXBI options.

The manual is intended for Digital customer service engineers and customers performing these installations.