Rx01/Rx02 Reference Card

This document is a comprehensive technical reference and service guide for Digital Equipment Corporation's RX01 and RX02 floppy disk drive systems. It provides detailed engineering data, configuration settings, and operational procedures for integration with PDP-8 and PDP-11 computer systems.

Key sections of the document include:

• Hardware Specifications: Technical details regarding track/sector formats, drive performance parameters, and data capacity across various modes (8-bit, 12-bit, single/double density).
• Registers and Protocols: Detailed register maps for command, status, and buffer registers, alongside step-by-step programming protocols for common operations like reading, writing, and buffering data.
• Configuration and Cabling: Switch and jumper settings for different controller and interface modules (such as M7744, M7846, M8357), as well as diagnostic routines and bootloader code.
• Maintenance: A detailed flowchart-based guide for the disassembly and reassembly of the RX02 drive unit, covering both rack-mounted and self-contained configurations.
• Troubleshooting: Extensive error code tables, which map specific octal status codes to probable hardware failures, allowing technicians to isolate issues between the diskette, controller, R/W electronics, or cabling.