DECbrouter 90T Installation and Operating Information

This document is the "Installation and Operating Information" manual for the DECbrouter 90T series of Digital Wide Area Routers/Bridges (models 90T1, 90T2, and 90T2A), published in April 1993.

The manual provides comprehensive instructions on how to install and maintain these devices, which can operate either as standalone units or be integrated into a DEChub 90 backplane.

Key information covered includes:

• Overview: Describes the features of the DECbrouter 90 models, including support for Ethernet (ThinWire or twisted pair) and various synchronous serial port standards (EIA530A, RS232/V.28, RS449, V.35, V.36, X.21 Leased Lines), console port functionality, typical network configurations, and a guide to the device's LEDs and connectors.
• Installation: Step-by-step procedures for installing the DECbrouter 90 as a standalone unit (on a table or wall) or within a DEChub 90 backplane, detailing cable connections for power, Ethernet, serial, and console ports.
• Troubleshooting: Provides guidance for diagnosing and resolving common issues for both standalone and backplane configurations of the DECbrouter 90.
• Specifications and Parts List (Appendix A): Details the physical dimensions, environmental operating and shipping specifications, electrical requirements (power supply and input), a comprehensive parts list, and detailed cable connection pinouts for various standards.
• Related Documentation (Appendix B): Lists other manuals and documents relevant to the DECbrouter 90.
• United Kingdom Specific Information (Appendix C): Contains additional installation and compliance details required for UK installations, such as service categories, host power ratings, module isolation, safety warnings, and cable approvals.