DNSES EISA Synchronous Comm Controller Installation Guide

This document is an Installation Guide for the DNSES EISA Synchronous Communication Controller.

It primarily details how to install the DNSES controller, which is a two-line synchronous communication interface designed to connect EISA-based systems to Wide Area Networks (WANs). The guide is intended for Digital service representatives or experienced system administrators.

Key aspects covered include:

• Description and Specifications: Outlines the controller's function, its two-line synchronous nature, connection to the EISA bus, and technical specifications such as support for HDLC and SDLC protocols, a maximum speed of 2.048 Megabits/second, and a maximum packet size of 4096 bytes.
• Installation Steps: Provides step-by-step instructions for physically installing the DNSES module into an EISA slot, connecting the external sync cable, adapter cables, and communication lines.
• EISA Configuration Utility (ECU): Emphasizes the crucial role of running the ECU after installation to ensure a conflict-free system configuration. It explains how to use the ECU to load configuration files, view/edit device parameters (like interrupt mode, IRQ level, and memory address space), and save changes, noting that the utility can automatically resolve conflicts.
• Appendices:
  • Appendix A (United Kingdom Specifications): Details UK-specific requirements, including safety status, service category specifications (data rates, physical/electrical requirements), cable length restrictions, module isolation (clearance and creepage distances), host power rating requirements, and cable approval information.
  • Appendix B (DNSES Adapter Cables): Lists various supported adapter cables (with part numbers, maximum data speeds, and compatible loopback connectors) required to connect the external sync cable to standard interface connectors, and provides pinout configurations for the 50-pin D-sub connectors.