Planet FGSW-1602 User Manual

10/100/1000Mbps

Ethernet Switch

FGSW-1602

User’ s Guide

FCC Information

The Federal Communication Commission Radio Frequency Interference Statement includes the following paragraph:
This equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

♦ Reorient or relocate the receiving antenna.
♦ Increase the separation between the equipment and receiver.
♦ Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
♦ Consult the dealer or an experienced radio / TV technician for help.

The user should not modify or change this equipment without written approval from company name. Modification could void
authority to use this equipment.
For the safety reason, people should not work in a situation which RF Exposure limits be exceeded. To prevent the situation
happening, people who work with the antenna should be aware of the following rules:

1. Install the antenna in a location where a distance of 6.5 cm from the antenna may be maintained.

2. While installing the antenna in the location, please do not turn on the power of wireless card.

3. While the device is working, please do not contact the antenna.

Copyright

Copyright © 1999 Planet Technology Corp., all rights reserved. No part of this publication may be reproduced, adapted,
stored in a retrieval system, translated into any language, or transmitted in any form or by any means without the written
permission of Planet Technology Corp.

Trademarks

Planet is trademark of Planet Technology Corp., all other trademarks throughout this manual are the property of their
respective companies.

Limited Warranty

In no event will Planet be liable for any damage, including loss of data or profits, cost of cover, or other incidental,
consequential or indirect damages arising from the installation, maintenance, use, performance, failure or interruption of
Planet’s products, whatever caused and on any theory of liability. This limitation will apply even if Planet has been
advised of the possibility of such damage.

CE Mark Warning

This is a Class A product. In a domestic environment, this product may cause radio interference, in which case the user
may be required to take adequate measures.

About This Manual

Gigabit Uplink Switch User’s Guide is first published by Planet Technology Corp. in 1999. This Revision is issued in
Sep. 1999.

Revision

Gigabit Uplink Switch FGSW-1602 User’s Guide
Part No.: EMFGSW1602

CONTENTS

Chapter 1 Introduction

Fast Ethernet Technology
Fast Ethernet Hub Technology
Dual-Speed Ethernet Hub Technology
Switching Technology
Gigabit Technology

Chapter 2 About Ethernet Switch

Package Contents
Device Description, Features and Capabilities

Chapter 3 Planning your Network

10Base-T Ethernet Network Guidelines
100Base-TX Ethernet Network Guidelines
100BASE-FX Network Guidelines
1000BASE-SX and LX Network Guideline
Network Planning
Expanded Networks
Collapsed Backbone Link
Fileserver Link
Multiport Bridge with High-Bandwidth Backbone

Chapter 4 Installation

Choosing A Location
Supplying Power
Connecting the Switch
Power Failure

Chapter 5 Module Installation and Removal

Handling the Modules
Module Setup and Installation
Installing the Modules
Removing the Modules

Appendix A Technical Specifications
Appendix B PIN Assignments

Chapter 1

Introduction

This section provides you with useful Fast Ethernet, hub and switching technology background.

Fast Ethernet Technology

In July 1993, the Fast Ethernet Alliance was formed by a group of networking companies with the goal of drafting the 802.3u
100BaseT specifications of the Institute of Electrical and Electronics Engineers (IEEE). This group recognized that existing
applications and the flood of new multimedia, GroupWare, imaging, and database products could easily overwhelm a traditional
10BaseT Ethernet. In order to ensure a cost effective, simple migration from 10BaseT Ethernet to 100BaseT Fast Ethernet, the
group determined to maintain the Ethernet transmission protocol Carrier Sense Multiple Access Collision Detection (CSMA/CD),
support popular cabling schemes and to maintain the upper-layer protocols and software that already ran on LAN workstations.

Because it is compatible with all other 10Mbps Ethernet environments and uses your company’s existing investment in hardware,
software, and personnel training, Fast Ethernet technology is regarded as being the inevitable market dominator. This means
that you can now start to make a cost effective, incremental migration to Fast Ethernet and rest assured that the future will offer a
vast array of low cost products to keep pace with your growing LAN needs.

Cables and Connectors

Fast Ethernet supports category 5 unshielded twisted-pair (UTP) cable and category 5 shielded twisted-pair (STP) cable.

These cables use the same RJ-45 connector as used with 10BASE-T cables wired in the same configuration.

Topology

Star topology is the fundamental structure of a Fast Ethernet LAN.
A single collision domain LAN is sufficient for users with a small number of end stations and servers.

Within a single collision domain LAN, you can use one class I repeater hub or two class II repeater hubs to connect your end
stations and servers. You can use stackable hubs to increase the total number ports within each collision domain.

A switch is used to create other collision domains within your overall LAN. These collision domains are separate LANs within
your overall LAN.

A switch allows all of these collision domains to communicate with each other.

A switched line is a separate collision domain that allows you to use one Class I repeater hub or two Class II repeater hubs to
connect your end stations and servers. You can use stackable hubs to increase the total number ports within each collision
domain.

You can also dedicate a separate collision domain to heavily used servers or end stations with large bandwidth needs.

Network Diameter

The network diameter is the total length of cable between two end stations within the same collision domain.

Because of the high speed of Fast Ethernet and adherence to the EIA/TIA 568 wiring rules, the maximum diameter of a Fast
Ethernet collision domain is 205 meters.

The maximum 10Base-T Ethernet collision domain diameter is 500 meters.

Fast Ethernet Hub Technology

Class I Fast Ethernet Hubs

Class I hubs must be used when connecting differing network media such as two wire-pair 100BASE-TX media with four wire­pair 100BASE-T4 media within the same collision domain.

The hub receives line data from any port, translates it into a digital signal, retranslates the signal back into the appropriate line
data and repeats it to all other ports.

If a Class I hub is used in a collision domain, no other hubs may be used within that collision domain.

Class II Fast Ethernet Hubs

Class II hubs are used when all media within the collision domain is the same (all TX, for example).

The hub receives line data from any port and directly repeats it to all other ports.

A maximum of two Class II hubs can be used within one collision domain.

Stackable Class II Fast Ethernet Hubs

You can increase the port density within a collision domain by using stackable Class II hubs.

When hubs are stacked, they function as one hub. Consequently, you can have up to two stacks of Class II hubs within one
collision domain.

The stacked hubs receive line data from any port and directly repeat it to all other ports within the stack.

Dual-Speed Ethernet Hub Technology

Dual-Speed Ethernet hubs are an indispensable step in the migration of your existing 10Mbps Ethernet to 100Mbps Fast Ethernet.

This type of hub accommodates both 10Mbps Ethernet and 100Mbps Fast Ethernet on the same LAN.

A Dual-Speed Ethernet hub contains two separate repeaters within the same unit: one 10Mbps repeater and 100Mbps repeater.

The unit automatically detects the speed of the signal and routes it to the corresponding repeater. The repeater then sends the
signal to all other ports using that signal speed.

Dual-Speed Ethernet Hub with Built-in Bridge Module

A dual-speed Ethernet hub with bridging capabilities retains the structure of a regular dual-speed hub with the addition of an
embedded bridge module. This allows your 10Mbps devices and 100Mbps devices to seamlessly exchange data

Switching Technology

A switch creates a separate collision domain by dedicating a full 100Mbps line through each port. This allows you to use one
class I repeater hub or two class II repeater hubs to connect your end stations and servers within that domain. You can use

stackable hubs to increase the total number ports within each collision domain.

A switch uses store and forwarding technology to transfer data between collision domains at the MAC address level of the
Ethernet protocol. This means that data is transferred only to the data’s destination collision domain. The data is not
transferred to other collision domains, which allows your total LAN capacity to be increased without the need to invest in new
media infrastructure.

By creating separate collision domains and communicating between them, a switch allows you to overcome the two-hub limit of
Fast Ethernet topology.

You can also use a switch to dedicate a full 100Mbps line to power workstation users and servers.

Switches with bridging technology are ideal for facilitating data transfer between your 10Mbps legacy devices and your new
100Mbps devices.

Switches have lower latencies than the previous generation of network bridges; they use your existing network and do not require
the use of software for installation.

These factors make switches the best solution for most of your LAN congestion problems.

Gigabit Technology

Gigabit Ethernet is an extension to highly successful 10Mbps and IEEE 802.3 Ethernet standards. Offering a raw data bandwidth
of 1000Mbps, Gigabit Ethernet maintains full compatibility with the huge installed base of Ethernet node. The 1000Base-X
Gigabit Ethernet standard was ratified In June 1998 after more than two years of intense effort Within the IEEE 802.3 Ethernet
Committee .The key objective of the 802.3z Gigabit Ethernet Task Force was to develop a Gigabit Ethernet standard that
encompassed the following:

u Utilized the IEEE 802.3 Ethernet frame formats
u Utilized the CSMA/CD assess method
u Addressed backward compatibility with 10Base-T and 100Base-T technologies
u Allowed half-and full-duplex operation

Gigabit Ethernet common Cabling:

u 1000Base-SX (“S” for short wavelength)
u 1000Base-LX (“L” for long wavelength)