TA91 Magnetic Tape Subsystem

This manual provides comprehensive instructions for the TA91 Magnetic Tape Subsystem, including:

• System Overview: Introduction to the tape control unit (TCU) and tape transport units.
• Operation Panels: Detailed descriptions of the switch panels on the TCU, tape drives, and cartridge loaders.
• Operating Procedures: Step-by-step guides for loading microprograms, handling emergency power situations, and managing tape cartridges.
• Cartridge Handling: Essential information on the care, labeling, storage, and security of magnetic tape cartridges.
• Troubleshooting: A guide for resolving common operational problems, including a detailed check code table for identifying and handling hardware errors.
• VMS Integration: Information on using standard VMS system commands with the TA91 subsystem.