R400X Expander

This document provides comprehensive instructions for installing, configuring, and maintaining the R400X mass storage expander. It covers:

• Hardware Overview: Description of the expander, backplane, power supply, and bus configurations (DSSI and SCSI).
• Installation Procedures: Step-by-step guidance on site preparation, physical positioning, device installation (RF/RZ-series ISEs and TLZ04 tape drives), bus configuration, and cable connections.
• Field-Replaceable Unit (FRU) Replacement: Procedures for removing and replacing major components, such as ISEs, fans, power supplies, and backplanes.
• Parameter Programming: Appendixes detailing how to program parameters for RF-series ISEs, including node names, unit numbers, and allocation classes.

The manual is intended for Digital Customer Services personnel and qualified self-maintenance customers.