Introduction

The Centillion 100 EtherSpeed 10BASE-T/100BASE-FX Switch Module from Bay Networks® inserts into one slot of a Centillion 100™ chassis. The module provides eight 10BASE-T switched ports that operate at 10 megabits per second (Mb/s) and two 100BASE-FX switched ports that operate at

100 Mb/s.

This guide contains information speciﬁc to the 8/2-port EtherSpeed 10BASE-T/100BASE-FX Switch Module and includes the following topics:

•Status LED descriptions

•Default conﬁguration

•100BASE-FX cable requirements

•10BASE-T port pin assignments

•Technical speciﬁcations

•Declaration of Conformity

For information about installing and troubleshooting Centillion 100 EtherSpeed™ modules, refer to Using the Centillion 100 EtherSpeed Switch Modules (Bay Networks part number 893-890-B). Refer to Using SpeedView 2.1 for Windows (Bay Networks part number 893-891-B) for information about how to use SpeedView™ to conﬁgure features on an EtherSpeed module and a Centillion 100 switch.

Figure 1 illustrates the 8/2-port EtherSpeed 10BASE-T/100BASE-FX Switch Module.

Captive retaining screws

Inserter/extractor levers

Eight 10BASE-T ports (RJ-45)

Two 100BASE-FX ports (SC connectors)

Backplane connector

Power supply connector

Printed circuit board

LEDs

937FA

Figure 1. EtherSpeed 10BASE-T/100BASE-FX Switch Module

00BASE-FX specifications

Nortel Networks 00BASE-FX is a well-known fiber optic technology that played a pivotal role in the evolution of networking during the late 20th century. As a part of the 100BASE-FX standard, it utilizes multimode fiber optic cables to achieve high-speed data transmission essential for modern telecommunications. The standard amount of bandwidth operates at 100 Mbps, serving as a reliable backbone for various networks.

One of the main features of 00BASE-FX is its usage of light as a transmission medium. This medium significantly benefits data integrity and transmission distance compared to traditional copper cables. With 00BASE-FX, the maximum transmission distance can reach up to 2 kilometers (about 6,600 feet) using multimode fiber, which is particularly advantageous in campus environments or large buildings.

Technologically, 00BASE-FX employs a dual-fiber system where two strands of fiber are utilized—one for sending data and the other for receiving it. This approach reduces the risk of signal degradation and enhances overall performance. The technology operates over an 850 nm wavelength, and its use of inexpensive multimode fibers helps to minimize infrastructure costs while maximizing performance.

Another notable characteristic of 00BASE-FX is its compatibility with various networking protocols and devices. This versatility allows for seamless integration into existing network topologies, ensuring that organizations can leverage their current investments while upgrading their technology. Furthermore, 00BASE-FX is an ideal choice for local area networks (LANs) that require robust bandwidth and low latency to support high-demand applications including video conferencing, VoIP, and data-intensive tasks.

In summary, Nortel Networks 00BASE-FX plays a significant role in fiber optic communications, providing organizations with high-speed, reliable networking solutions. Its combination of high data rates, long transmission distances, and compatibility with existing systems positions it as a robust option for modern telecommunications needs. As industries continue to evolve, technologies like 00BASE-FX remain fundamental in supporting the increasing demand for faster and more efficient data transmission. Its legacy is reflected in the ongoing advancement and adoption of fiber optic technologies across the globe.