DEChub 900 MultiSwitch Power Distribution Assembly Upgrade Kit

This document provides a detailed, step-by-step guide for upgrading the DEChub 900 MultiSwitch with a new power distribution assembly (option number 70-30820-01). The "Quick Start Overview" outlines the general procedure, which includes powering down the hub, noting existing settings, disassembling the unit by removing the cover, options, cables, and modules (secretariat, matrix), then removing the old power distribution assembly.

The "Installation of Upgrade Kit" section details the reassembly process, focusing on installing the new power distribution assembly, reinstalling the matrix and secretariat modules, and reattaching all necessary cables and connectors. It also lists the required tools (various screwdrivers, hexnut driver, wire cutters) and recommends an ESD wrist strap. The document specifies the contents of the upgrade kit, which includes the new power distribution assembly, cable clamp U-clips, and a cable tie wrap. Figures illustrate each step of the removal and reinstallation process. The final steps involve installing stiffeners and a clamp, and replacing the back cover, with a reference to another document for these specific instructions.