RV20 Optical Disk Subsystem Installation Guide

This document is the RV20 Optical Disk Subsystem Installation Guide (EK-ORV20-IN-001), published by Digital Equipment Corporation in January 1988.

The guide provides comprehensive instructions for the installation, configuration, and verification of the RV20 Optical Disk Subsystem, as well as for installing additional RV20 drives into an existing subsystem.

Key aspects covered include:

1. Subsystem Overview: Describes the RV20 as an optical disk system housed in an H9643 cabinet, supporting configurations from one master drive (with an internal controller) up to three daisy-chained slave drives. It connects to a host system (VAX 8200, VAX 8800, or MicroVAX) via a LESI (Low-End Storage Interconnect) interface and a system-specific KLESI adapter module (T1014 for BI-bus VAX, M7740 for Q-bus MicroVAX). Each drive has an internal Control Module (CM) number (0-3).
2. Site Requirements and Unpacking: Details necessary site considerations (weight, temperature, humidity, space) and provides step-by-step instructions for safely unpacking the heavy RV20 cabinet from its skid, emphasizing the need for two people and safety shoes.
3. KLESI Adapter Module Installation: Offers detailed, system-specific procedures for installing the appropriate KLESI adapter (T1014 or M7740) into the host system's backplane, including address setting for the M7740 module using the SYSGEN utility.
4. Cabling the RV20 Subsystem: Explains the internal ISI bus cabling (which is pre-shipped but requires verification) and connecting the LESI interface cable to the host. Block diagrams illustrate various configurations (1-drive, 2-drive, 3-drive, 4-drive subsystems).
5. Power-Up and Self-Testing: Guides the user through powering up each RV20 drive and observing the maintenance panel's hexadecimal display and LEDs for successful internal self-tests and controller diagnostics.
6. Assigning TMSCP Unit Numbers: Instructs on how to assign unique TMSCP unit numbers (0-251) to each RV20 drive via the maintenance panel, noting that the host operating system 'sees' the RV20 as a tape device.
7. Level III Functional Verification: Details procedures for running comprehensive functional tests using either the VAX Diagnostic Supervisor (VDS) for BI-based systems or the MicroVAX Diagnostic Monitor (MDM) for MicroVAX systems. It emphasizes the critical need for a dedicated optical test disk (with instructions provided for creating one from a blank disk).
8. Installing an RV20 Add-On Drive: Provides specific steps for adding new master or slave RV20 drives to an existing H9643 cabinet, referencing the core installation and verification procedures, and outlining the assignment of internal CM numbers for the added drives.

The document includes important safety warnings, particularly regarding lifting heavy equipment and invisible laser radiation.