Digital 2100 Server H7893 Power Supply

This document provides a comprehensive guide for installing and configuring the H7893 power supply in the Digital 2100 Server Model 500MP system. It details a four-step process for proper setup:

1. Power Shutdown: Instructions cover an orderly shutdown of the operating system, shutting off DC and AC power switches, and unplugging AC power cords, with critical safety cautions regarding hazardous voltages.
2. Installation and Cover Removal: Guidance on physically installing the power supply and removing its connector cover, emphasizing safety warnings about hazardous voltages and the necessity of proper grounding, especially when multiple units are involved.
3. Power Supply Configuration: Explanations and diagrams for four possible configurations (Single, Redundant, Full, and UPS) with their respective wattage limits. It also outlines requirements for compatible Uninterruptible Power Supplies (UPS) and provides a table of power cord ratings for various voltage ranges and configurations.
4. I/O Switch Settings: Details how Jumper J3 controls the power supply's operating mode, distinguishing between "Installed" (Redundant) and "Not Installed" (Parallel) modes, and notes the H7893 power operating system's role in disk spin-up.

The document also describes the functionality of the Power Controller LEDs (AC OK and DC OK) and their status indicators. It concludes with detailed power supply specifications, including input voltage characteristics, output voltage characteristics (for +3.3Vdc, +5.1Vdc, +12.1Vdc, and -12.0Vdc), environmental specifications, and ordering information for H7893 power supply models and related documentation.