TC44-AA/BA STI to StorageTek 4400 ACS Interconnect Hardware Maintenance Manual

This document serves as a hardware maintenance manual for the TC44 Standard Tape Interface (STI) to StorageTek 4400 Automated Cartridge System (ACS) Interconnect, aimed at Customer Services personnel. It describes the TC44 adapter as an interface between a VAX/VMS system and a StorageTek 4400 ACS, connecting to remote tape control units via an IBM channel interface (FIPS-60) and to a Hierarchical Storage Controller (HSC).

The manual is organized into three main chapters:

1. Introduction: Provides an overview of the system, including its configurations, detailed descriptions of hardware components (TC44 adapter modules, FIPS converter module, CE panel, power supply), and performance specifications (e.g., throughput, cached/noncached operation).
2. Customer Services Troubleshooting: Details various diagnostic procedures, such as power-up diagnostics, FIPS loopback diagnostics, and interpretation of A/B Fault Switch LED error indications. It includes failure analysis guidelines and a comprehensive troubleshooting chart to isolate problems within the system.
3. Removing and Replacing the Field Replaceable Units (FRUs): Offers step-by-step instructions for accessing, removing, and replacing key components like the TC44 adapter modules, FIPS converter module, DC power supply, port select A/B fault switch assemblies, fan assemblies, and the CE panel.