Poseidon Terminal Server

This document is the component software product specification for the Poseidon terminal server, version 4.0, dated October 17, 1984. It defines the goals, capabilities, and external characteristics of the server software, which runs on Poseidon hardware to support asynchronous terminal access on an Ethernet Local Area Network. The document outlines the software's architecture—including the LAT protocol, terminal port, NI port, and user interface modules—and describes management, performance, and maintenance features.