Fixed Disk Drive Subsystem

This owner's manual provides installation, operation, and maintenance procedures for the RD54-D (desktop) and RD54-R (rackmount) fixed disk drive subsystems, which offer 159 Mbytes of storage.

Key contents include: * Installation: Guidelines for site selection, unpacking, connecting to various systems (MicroPDP-11, MicroVAX, PDP-11/23 PLUS) via the RQDX3 controller, and formatting instructions. * Operation: Explanation of front and rear panel controls, indicators, and care instructions. * Technical Description: Details on physical and operating features, environmental requirements, and system configuration setups. * Troubleshooting: Tables and procedures for resolving common issues and replacing field-replaceable units (FRUs). * Appendices: Information on Logical Unit Numbers (LUNs), system specifications, connector signals, and Digital service options.