scope:

This document is based mostly upon information contained in RT/E/C/17901SSI Configuration Guide [Ref 6], with additional information from the SSI Applications Manual (the contents of which are stated in RT/E/S/17002 [Ref 1]) and RT/E/C/17903 SSI Hardware Problems [Ref 8].

It is intended to provide information to maintainers of installed SSI systems, and does not cover those elements of SSI used with the Design Workstation and On-Site Simulation systems, nor those activities relating to data preparation and scheme design.

This issue of the guide provides guidance on the use of the following equipment:

Multi-Processor Modules (MPM) (Interlocking and Diagnostic)

Panel Processor Modules (PPM)

Memory Modules (MM)

Signal Modules (SM)Points Modules (PM)

Data Link Modules (DLM)

Long Distance Terminals (LDT)

Technician's Terminal (TT)

Trackside Data Link Testing

Production Telegram Error Rate Test Set (PTERTS)

Should there be any disagreement between this document and the SSI Applications Manual, the information in the SSI Applications Manual shall be taken as definitive.

Purpose

This document provides a guide to SSI Hardware. It describes the various parts of the SSI system, and the permitted combinations of hardware and software for each item of equipment. Preferred configurations and upgrade paths are listed as well as any significant problems that have been recorded with equipment. Also described are the testing methods used for testing SSI Trackside Data Links and the tools required.