EOTec 2000 System Overview

The EOTec 2000 fiber optic converters are a family of modules designed to take traditional copper networks, convert them to fiber optic signals, and convert them back again. All modules fit on standard 35mm DIN rail and each has an integrated backplane. As a result, there is no separate backplane to purchase and no external wiring between modules. Simply attach each module to the DIN rail and slide them together until they mate to one another.

The EOTec 2000 Series represents an extremely flexible and scalable solution to the problems often encountered when using copper to interconnect communication nodes. Both multi-mode and single-mode fiber optic links are supported. Options are available to support all the popular fiber optic connectors (ST, SMA, SC), providing users the ability to construct dependable and robust networks.

Problems such as ground loops, isolation and lightning strikes are eliminated with the EOTec 2000 fiber optic converters. Fiber optic communication links can also be extended over much greater distances and take on physical topologies not available with copper networks. For instance, star and self-healing ring topologies are impossible when using copper interconnects. These configurations are easily achievable with the EOTec 2000.

Constructing fiber optic communication nodes is very easy if the user keeps a few simple guidelines in mind. At a very minimum, every fiber optic node will require a power supply module (PSM), electrical interface module (EIM) and optical interface module (OIM). The EOTec 2000 consists of the following four module types:

	Electrical Interface Modules (EIMs) Connect to your PLC devices and/or fieldbus networked equipment.
	Fiber Optic Interface Modules (OIMs) Build a fiber based network using Single Mode or Multi-Mode Fiber Cables in avariety of topologies.
	Self Healing Ring Module (SHRM) Use this module in each fiber network node to build a self-healing ring for enhancedreliability.
	EOTec 2000 Power Supply Modules These "Hot Swappable" modules support a wide range of AC &  DCpower sources. Use two power supplies in a node to provide redundancy.

Inter-module communications and power distribution is handled by the internal EOTec 2000 BUS architecture to minimize external wiring.

Flexible Network Topologies
Each node can support up to five (5) EIMs or OIMs to suite the application. The EOTec system allows the user to build a fiber optic system that supports several network topologies, including:

• Repeater
• Point-To-Point
• Daisy-Chain
• Star
• Self Healing Ring
• Dual Self Healing Ring

EOTec 2000 Application Hints:

• Each cluster can have a maximum of five communication modules (power supplies not included).
• Each cluster must have one (and only one) module set to Master (M). Any additional modules sharing a common backplane with the Master must be set to a numerical address (1, 2, 3 or 4). Numerical addresses cannot be repeated in a single cluster.
• When employing a self-healing ring configuration, the self-healing ring module is hardwired as Master. The electrical interface module must be set to "1" and the adjacent modules must be set to "2" and "3".
• The default setting for the optical transmit power is "H" (high); this setting should not be adjusted unless an optical overdrive situation occurs.
• Pay attention to the terminations on the electrical interface modules. Modules without internal termination can be used anywhere along a copper segment. Modules with internal termination must be used at the end of copper segments only.