Communications Equipment

This document outlines the range of communication equipment manufactured by Digital Equipment Corporation (DEC) for PDP family computers. It serves as an introductory guide, describing various communication systems including the PT08 Asynchronous Serial Line Interface, the 680 Data Communication System, the DP01A Synchronous Data Communication Channel, the Type 636 Asynchronous Data Communication Channel, and the DM03 Data Channel for parallel interprocessor communication. Each section provides an overview of the system principles, specifications, interfacing details, and application examples. The manual also includes information on automatic dialing equipment, telegraph interface equipment, and modem interface panels, along with guidelines for system installation and configuration. Supplemental materials such as system schematics and technical illustrations are referenced throughout.