Fiber Distributed Data Interface Network Config Guidelines

This document, "Fiber Distributed Data Interface Network Configuration Guidelines" by Digital Equipment Corporation (November 1991), provides rules and examples for connecting devices to an FDDI network.

It is intended for network system managers, planners, installers, and troubleshooters responsible for setting up and managing FDDI networks.

The manual covers:

• FDDI Network Connection Rules: Detailing PHY port types (A, B, M, S), their connection rules, and information on optical bypass relays.
• FDDI Network Configurations: Providing examples and guidelines for various network setups, including standalone workgroups, tree configurations using concentrators and bridges, dual ring configurations, dual homing, and single-mode fiber applications.
• FDDI Specifications: Listing detailed technical specifications for FDDI generally, multimode and single-mode fiber optic cables (e.g., 62.5/125-µm, 100/140-µm), copper cables (ThinWire and shielded twisted-pair), and procedures for calculating optical bypass link loss budgets.

The guidelines are based on Digital's implementation and align with the EIA/TIA 568 wiring standard for commercial buildings.