KMS11-BD/BE Synchronous Communications Processor User Guide

This document, titled "KMS11-BD/BE Synchronous Communications Processor User Guide" (EK-KMSBE-UG-001) by Digital Equipment Corporation, published in April 1983, is a technical manual for the KMS11-BD/BE synchronous communications processor.

The guide provides a comprehensive overview for users, covering:

• Introduction and Physical/Functional Description: It details the components of the KMS11-BD/BE (e.g., KMC11-B microprocessor, DMS11-DA synchronous line unit, DM11-BA modem control multiplexer, and H317-M/P distribution panels), explaining their roles in providing high-speed, efficient communications for networking applications, particularly with UNIBUS systems.
• General Specifications: Includes mechanical, operational environment, electrical, and UNIBUS conductor specifications.
• Site Preparation and Installation: Provides detailed instructions for setting up the operating environment, physical installation of the various boards into the DD11-DK backplane, and configuring address and vector settings via switches and jumpers for different hardware revisions.
• System Configuration: Explains how to cable the components, such as the modem control multiplexer and line units, to the distribution panels.
• Maintenance: Focuses on using specific PDP-11 and VAX-11 system diagnostic software to verify proper operation. It explicitly states that user-level maintenance is limited to running diagnostics, and field repair of the unit is not to be attempted.
• Field Replaceable Units: Lists part numbers for boards, test connectors, cables, and assemblies.

The document is intended for users responsible for the installation, configuration, and diagnostic troubleshooting of the KMS11-BD/BE communications processor.