TRENDnet TE100-S14 User manual

TE-100/S14
10/100 Fast Ethernet Switch
100Base-TX and 10Base-T
User’s Guide
First Edition - October 31, 1995
Trademarks

2
Copyright  TRENDware
All rights reserved, contents are subject to revision without prior
notice.
TRENDnet  is a registered trademark of TRENDware
Ethernet is a trademark of Xerox Corporation.
Microsoft Windows is a trademark of Microsoft Corporation.
VT100 is a trademark of Digital Equipment Corporation.
FCC warning
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference in which case the user may be required to correct the
interference at his or her own expense.

3
Technical support information
TRENDware provides technical support worldwide. In USA, the
BBS number is 1-310-328-8191 (protocol: 14400, 8 N 1).
U.S.A. TEL [phone] FAX [phone]
This Manual
This manual is the user’s reference guide of the TE-100/S14
Switch for connecting the Fast Ethernet 100Base-TX and
Ethernet 10Base-T Local Area Network. It provides detailed
information on the features, functions and installation of this
Switch. It also provides information regarding the network
management and cabling environment in which the Switch will be
installed.

4
Contents at a glance:
Chapter 1, Introduction - Provides an overview of the Fast
Ethernet and Switching technology; their use and benefits in the
current and emerging computing and networking environment;
and finally, a brief description of the major feature of the TE-
100/S14 Fast Ethernet Switch.
Chapter 2, Getting Started - Describes the cabling
environment, and the preparation for setting-up and integrating
the TE-100/S14 Switch into a LAN network.
Chapter 3, Configuring the Switch - Details the setup
procedures of the TE-100/S14 Switch to ensure its proper
operation in a network.
Chapter 4, Network Management - Addresses the
information regarding the operation of the TE-100/S14 Switch in
a SNMP network environment.
Chapter 5, Diagnostics - Helps users to understand the
status LED lights of the TE-100/S14 Switch, and to isolate
problem areas that may arise during installation.
The TE-100/S14 Fast Ethernet Switch

5
Table of Contents
CHAPTER 1 INTRODUCTION 7
Fast Ethernet Technology 7
Switching technology 8
10/100 Switching technology 9
Benefits of Switching 9
Overview of the TE-100/S14 Ethernet Switch 10
CHAPTER 2 INSTALLATION 11
Cabling Requirement and Site Preparation 11
Unpacking and Setup 14
Unpacking 14
Operational Function Description 15
Power on 15
Mounting 16
Connecting network cables 16
Setup 17
Checking Status LED lights 17
CHAPTER 3 CONFIGURING THE SWITCH 19
Introduction 19
RS-232 Port Connection 20
Out-of-Band Management 20
Port Management 24
Spanning Tree Algorithm 25

6
CHAPTER 4 NETWORK MANAGEMENT 31
Operating within the SNMP environment 31
Operating without the SNMP environment 31
CHAPTER 5 DIAGNOSTICS 33
Power-On Self Test 33
System Status 34
LAN segment LED Status 34
APPENDICES 35
Appendix A Status LED Indicators 35
System & LAN port Status 35
LAN Segment Status 36
Appendix B Switch Default setting 37
Appendix C RS-232 Pin Specification 38
Appendix D RJ-45 Pin Specification 39
Appendix E Specifications 41
Port Configuration 41
Hardware 42
Index 43

7
Chapter 1 Introduction
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity
of desktop computing applications are fueling the needs for high
performance networks. A number of high-speed LAN
technologies are proposed or available to provide greater
bandwidth and improve client/server response times. Among
them, Fast Ethernet, or 100Base-T, provides a non-disruptive,
smooth evolution from the current 10Base-T technology, that by
statistics, is installed in over 70% of LANs worldwide. The non-
disruptive and smooth evolution nature, and the dominating
potential market base, virtually guarantee cost effective and high
performance Fast Ethernet solutions in the years to come.
100Base-T is an IEEE standard for a 100Mbps version of 10Base-
T. As Table Chapter 1 -1 shows, 100Base-T is essentially
10Base-T, only faster. It provides 10 times the performance of
10Base-T for less than twice the price. Like 10Base-T, it uses the
same CSMA/CD access method with a protocol standard proven
by over 70% of installed LANs over the last 20 years.
Except for reducing the “bit time” by a factor of 10 from the
CSMA/CD MAC of the 10Base-T, 100Base-T uses the same
packet format, packet length, error control, and management
information.
As part of the 100Base-T, the media specifications - 100Base-TX,
T4, FX - further enables users to retain their existing cabling
infrastructure while migrating to Fast Ethernet.

8
Ethernet Fast Ethernet
Speed 10Mbps 100Mbps
Cost x 2x or less
IEEE Standard CSMA/CD CSMA/CD
Topology Star or Bus Star
Cabling UTP, Coax, Fiber UTP, Fiber
UTP cable supported Category 3,4, or 5 Category 3,4, or 5
UTP max. link distance 100 meters 100 meters
Collision domain
diameter (max. w/ UTP)
500 meters 205 meters
Max. network diameter
(using switches/routers)
Unlimited Unlimited
Media Independent
Interface
Yes (AUI) Yes (MII)
Full duplex cabling Yes Yes
Table Chapter 1 -1, Ethernet vs. Fast Ethernet
Switching technology
Another approach to pushing beyond the limits of Ethernet
technology is the development of the Switching technology. A
switch bridges Ethernet packets at the MAC address level of the
Ethernet protocol transmitting among connected Ethernet or Fast
Ethernet LAN segments.
Switched Ethernet vs. Legacy Ethernet is analogous to using
private telephone lines vs. party lines. Connecting to a switched
port, each Ethernet LAN segment has dynamic full performance
or “wire-speed”. Therefore, a switch effectively splits a physical
shared-access LAN into bridged multiple LAN segments. Each
segment supports a workgroup, or even provides a dedicated
connection to a desktop or server. The result is a multiple fold
boost in total network bandwidth, and more predictable
performance under heavy network load.

9
10/100 Switching technology
10/100 Switching is an integral extension of Fast Ethernet. It
provides not only the 100Mbps high-speed “pipe-line” for
carrying aggregated 10Mbps traffic, but also the necessary
bridging between the 10Base-T and 100Base-T MAC formats.
Combining Fast Ethernet and Switching technologies, they
provide bandwidth to satisfy the demand of local workgroups.
They also provide a high-speed link to carry local network traffic
to elsewhere in a network.
Benefits of Switching
From the technical point of view, Ethernet switching technology
dramatically boosts the total bandwidth of a LAN network. It also
puts configuration flexibility and bandwidth adaptability into the
local workgroups where the majority of work load is generated
from a business operation. Switching further eliminates the
congestion problem inherent to the contention oriented Ethernet
CSMA/CD protocol, thereby improving predictable response
times under heavy network load. In the past, this congestion
under heavy load was alleviated by the much more expensive
routing technology.
From the workgroup applications point of view, the new wave of
Object oriented distributed Client/Server applications demands
higher bandwidth and tighter integration of client workstations
with servers. The legacy shared-access 10Mbps Ethernet
technology can no longer provide both bandwidth and predictable
response times to this new generation of workgroup environment.
From economics point of view, Fast Ethernet switching not only
satisfies both technical and business requirements, but also
preserves the existing users’ investment in the huge 10Base-T
Ethernet installed base. This compatibility insures a path for users
to add, change, and migrate to Fast Ethernet as needs arise over

10
time. It also provides a less expensive and more flexible
bandwidth solution directly to local workgroups where the
majority of work load is generated, instead of using much more
expensive and management-intensive routers that usually cater to
the backbone network.
Overview of the TE-100/S14 Ethernet
Switch
The TRENDnet TE-100/S14 Ethernet Switch supports:
• One 100Mbps Fast Ethernet (100Base-TX) port and four
10Mbps Ethernet (10Base-T) ports, with each port supporting
dedicated full duplex LAN segments.
• Store-and-forward Ethernet packet switching.
• The IEEE 802.1D Spanning Tree Algorithm for network loop
detection and prevention, and topology re-configuration.
• One RS-232 port allowing local terminal access to
comprehensive setup and management functions.
• The EEPROM (flash memory) implementation allowing in-
field upgrade through the Out-of-Band RS-232 port.
• Comprehensive LED display of the System and individual
LAN segment status.
• Self-test during power on to ensure system integrity.
These features ensure that the TE-100/S14 Switch is suitable for
simple workgroups, and for large networks.