DWLMA XMI PIU Installation Guide

This document is an "Installation Guide" for the DWLMA XMI PIU (Plug-In Unit), primarily intended for Digital service engineers.

The guide provides instructions for installing the XMI PIU, an I/O subsystem bus, into VAX 7000/10000 and DEC 7000/10000 AXP systems that use an LSB as the system bus. It covers installation procedures for both system and expander cabinets.

Key topics include:

• Introduction: Describing the XMI PIU, its placement rules within cabinets (occupying two of four quadrants), and the contents of the installation kit.
• Installation: Detailed, step-by-step procedures covering preparing the cabinet (e.g., removing airflow plates), installing the XMI card cage assembly, connecting the 4 to 1 cable, installing the IOP hose cable, and installing the DWLMA module.
• Verification: Instructions for restoring power and checking self-test results to confirm proper XMI PIU functionality.
• Appendix: Guidance on moving hinges on the bulkhead door for proper orientation based on cabinet placement.