SMC Networks SMC-EZ108DT User Manual

ABOUT THE EZ SWITCH 10/100

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SAMPLE APPLICATIONS

SMC-EZ108DT

The EZ Switch 10/100 (SMC-EZ108DT) is an 8-port Fast
Ethernet switch. Its 8 10BASE-T/100BASE-TX ports deliver
dedicated 10/100 Mbps links to each attached LAN
segmentall with conventional cabling and adapters. Auto­Negotiation is used to select the optimal transmission speed
and communication mode for each connection. With store­and-forward switching and flow control, maximum data
integrity is always maintained, even under heavy loading. Easy
installation and reliability make this plug-and-play switch an
ideal choice for smooth Fast Ethernet integration.

Features and Benefits

◆ Auto-Negotiation of half or full-duplex on all ports

◆ ANSI/IEEE 802.3u compliance ensures compatibility

with standards-based hubs, switches and cards from
any vendor

◆ Store-and-forward switching ensures error-free
transmission

◆ Half- and full-duplex flow control prevents packets
from being dropped under heavy loading

◆ Plug and play

◆ Built-in wiring crossovers on all ports allow

connections to servers and workstations to be made
with straight-through cabling

◆ At-a-glance LEDs for port and system status
monitoring

◆ Desktop and rack mountable

Rear Panel

The AC power receptacle is located on the rear panel of the
switch.

INSTALLING THE SWITCH

The EZ Switch 10/100 can be placed on a desktop or shelf,
or installed in a standard 19-inch equipment rack.

Equipment Checklist

After unpacking the EZ Switch 10/100, check the contents of
the box to be sure youve received the following components:

 EZ Switch 10/100 SMC-EZ108DT

 Appropriate AC power cable

 Four adhesive foot pads

 SMC Warranty Registration Card

 This User Guide

u Make sure twisted-pair cable is always routed away from

power lines, fluorescent lighting fixtures and other sources
of electrical interference such as radios, transmitters, etc.

u Make sure that a properly grounded power outlet is within

8 feet (2.44 meters) of the switch and is powered from an
independent circuit breaker. As with any equipment, using
a filter or surge suppressor is recommended.

Instructions

1. Positioning the Switch: For desktop or shelf mounting,
attach the four adhesive foot pads to the bottom of the
switch. For rack-mounting, attach the mounting brackets to
both sides of the switch with the screws provided, then
install the switch in the rack.

2. Applying Power: Plug one end of the power cable into
the power receptacle at the back of the switch, and the
other end into an appropriate electrical outlet. Check the
Power LED to be sure it is on.

Some typical applications for the EZ Switch 10/100 are
illustrated below:

Standalone LAN

Front-Panel LEDs

The front panel of the switch provides a link status LED for
each RJ-45 port. In addition, the front panel also contains
status LEDs for at-a-glance system monitoring. The
following table details the functions of the various indicators:

Front-Panel Ports

The front-panel ports are dual-speed RJ-45 ports with built-in
wiring crossovers. PCs can be connected to these ports with
straight-through cable. Each port supports Auto-Negotiation,
so the optimum communication mode (half or full duplex) and
data rate (10 Mbps or 100 Mbps) are selected automatically.

Port 8 on the switch doubles as a crossover port and a
straight-through daisy-chain port. The daisy-chain port
makes it convenient to connect straight-through cable
from the EZ Switch 10/100 to a crossover port on
another device.

Selecting a Site

Be sure to follow the site selection guidelines below
when choosing a location:

u Select a suitable location for the switch:

 It should be accessible for installing, cabling and

maintaining the switch.

 The temperature and humidity should be within

the ranges listed in the specifications.

 The status LEDs should be clearly visible.

 There should be adequate space (approximately

two inches) on all sides for proper air flow.

u Before rack mounting the switch, pay particular

attention to the following factors:

 Temperature: Since the temperature within a

rack assembly may be higher than the ambient
room temperature, check that the rack­environment temperature is within the specified
operating temperature range.

 Mechanical Loading: Do not place any

equipment on top of a rack-mounted switch.

 Circuit Overloading: Be sure that the supply

circuit to the rack assembly is not overloaded.

 Grounding: Rack-mounted equipment should be

properly grounded. Particular attention should
be given to supply connections other than direct
connections to the mains.

Note: It is not necessary to power off the switch before
connecting or disconnecting any UTP cables, as these
actions will not disrupt the operation of other devices
attached to the switch.

3. Connecting PCs: Connect each PC to an RJ-45 port
on the switch with a straight-through twisted-pair
cable segment, maximum length 100 meters (328
feet). The EZ Switch 10/100 will support up to 8
PCs. However, if using port 8 be sure to use the
fixed crossover port marked X on the switch.

Note: If an attached device does not support Auto­Negotiation, the data rate will be sensed
automatically and the communication mode will
default to half duplex.

4. Cascading Switches and Other Network Devices:
If you need more ports, connect the daisy-chain
port, marked = on port 8, to a crossover port on
another device. Be sure to use straight-through
twisted-pair cable, maximum length 100 meters (328
feet). Note that if you are using the daisy-chain port
you cannot use the fixed crossover port, marked
X on port 8.

Note: Alternatively, you can cascade from any
crossover port on the switch to a daisy-chain port
on another device. You may also connect to
crossover ports at both ends if you use a crossover
cable. See the Cable Specifications and
Connectivity Guidelines sections of this guide for
further information.

High-Speed Switch Links

TROUBLESHOOTING

1. Symptom

Power LED does not light after power on.

Probable Causes

Power outlet or power cord may be defective.

Possible Solutions

 Check for loose connections.
 Check the power outlet by using it for another

device.

 Replace the power cord.

2. Symptom

Link LED does not light after connection is made.

Probable Causes

Switch port, network card or cable may be
defective.

Possible Solutions

 Check that the switch and attached device are

both powered on.

 Be sure the network cable is connected to both

devices.

 Verify that Category 5 cable is used for 100 Mps

connections and that the length of any cable
does not exceed 100 meters (328 feet).

 Check the network card and cable connections

for defects.

 Replace the defective card or cable if necessary.

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User Guide

FOR TECHNICAL SUPPORT, CALL:

From U.S.A. and Canada (8:30 AM - 8:00 PM Pacific Time)

(800) SMC-4-YOU; [phone]; [phone] (Fax)

From Europe (8:00 AM - 5:30 PM UK Greenwich Mean Time)

44 (0) 1189 748740; 44 (0) 1189 748741 (Fax)

INTERNET

E-mail addresses:

[e-mail]
[e-mail]

Driver updates:

http://www.smc.com/support.html

World Wide Web:

http://www.smc.com/

FTP Site:

ftp.smc.com

FOR LITERATURE OR ADVERTISING RESPONSE, CALL:

U.S.A. and Canada: (800) SMC-4-YOU; Fax [phone]
Spain: 34-93-477-4920; Fax [phone]
UK: 44 (0) 1189 748700; Fax [phone]
Southern Europe: 33 (1) 41.18.68.68; Fax [phone]
Central/Eastern Europe: 49 (0) 89 92861-200; Fax [phone]
Nordic: 46 (8) 564 33145; Fax [phone]
Middle East: 971-48818410; Fax [phone]
South Africa: 27 (0) 11-3936491; Fax [phone]
PRC: 86-10-6235-4958; Fax [phone]
Taiwan: 886-2-2747-4780; Fax [phone]
Asia Pacific: (65) 238 6556; Fax [phone]
Korea: 82-2-553-0860; Fax [phone]
Japan: 81-45-224-2332; Fax [phone]
Australia: 61-2-9416-0437; Fax [phone]
India: 91-22-8204437; Fax [phone]

6 Hughes,
Irvine, CA 92618
Phone: [phone]

Publication Number: 150985-101 E082000-R03

COPYRIGHT

Information furnished by SMC Networks, Inc. (SMC) is believed to be
accurate and reliable. However, no responsibility is assumed by SMC
for its use, nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of SMC.
SMC reserves the right to change specifications at any time without
notice.

Copyright © 2000 by

SMC Networks, Inc.

6 Hughes, Irvine, California.

All rights reserved. Printed in Taiwan

◆ Desktop and rack mountable

◆ Half- and full-duplex flow control

◆ Full-duplex support on all ports

◆ Auto-Negotiation of speed and duplex mode

◆ Plug and play—no software, no switches, nothing to load

8-Port Fast Ethernet Switch

TRADEMARKS

SMC is a registered trademark; and EZ Switch is a trademark of SMC
Networks, Inc. Other product and company names are trademarks or
registered trademarks of their respective holders.

LIMITED LIFETIME WARRANTY

Complete warranty information for all SMC products is available on SMCs
web site at http://www.smc.com.

COMPLIANCES

FCC Class B

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 instruc­tions, may cause harmful interference to radio communications. However,

EZ Switch 10/100

there is no guarantee that the interference will not occur in a particular
installation. If this equipment does cause har mful 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 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

EC Conformance Declaration - Class B

European contact: SMC Networks Europe

Edificio Conata II
Calle Fructuós Gelabert 6-8, 2º, 4ª
08970 - Sant Joan Despí
Barcelona, Spain

This information technology product complies with ISO/IEC Guide 22 and
EN45014. It conforms to the following specifications:

EN55022(1988)/CISPR-22(1985) Class B

EN50082-1: IEC 1000-4-2, 3, 4
This information technology product complies with the requirements
of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/
336/EEC and carries the CE Mark accordingly.

Industry Canada - Class B

This digital apparatus does not exceed the Class B limits for radio
noise emissions from digital apparatus as set out in the interference­causing equipment standard entitled Digital Apparatus, ICES-003 of

Industry Canada.

Cet appareil numérique respecte les limites de bruits radioélectriques
applicables aux appareils numériques de Classe B prescrites dans la
norme sur le matérial brouilleur: Appareils Numériques, NMB-003
édictée par lIndustrie.

VCCI Class B

Australia AS/NZS 3548 (1995) - Class B

Australian Contact: SMC Australia
Suite 18, 12 Tryon Road,
Lindfield, NSW 2070
Phone: [phone]
Fax: [phone]

Safety Compliance

CSA/NRTL (C22.2.950, UL 1950)
EN60950, (IEC 950)

EZ SWITCH 10/100 SPECIFICATIONS

Model

SMC-EZ108DT

Ports

8 RJ-45 ports

Ports 1-7: Twisted-pair, fixed crossover
Port 8: Twisted-pair, choice between fixed crossover

or straight-through (daisy-chain port)

Network Interface

RJ-45: 100 ohm, UTP cable

10BASE-T - EIA/TIA Categories 3, 4, or 5
100BASE-TX - EIA/TIA Category 5

LEDs

Power - one
Link/Act (activity) - one per port
100M (100 Mbps) - one per port
FDX (full duplex) - one per port

Switching Method

Store-and-forward

MAC Address Table

1K entries

Memory Buffer

1 Mbyte per unit

Filtering/Forwarding/Learning Rates

Full line rate

Size

9.88 x 4.65 x 1.46 in (25.1 x 11.8 x 3.7 cm)

Weight

1.76 lbs (0.8 kg)

Temperature

Operating: 32° to 122°F (0° to 50°C)
Storage: -25° to 158°F (-13° to 70°C)

Humidity, non-condensing

5% to 95%

Power Requirements

Universal AC input; 100 to 240 VAC, 50 to 60 Hz

Power Consumption

10 Watts maximum

Heat Dissipation

68 BTU/hr maximum

Maximum Current

0.2A @ 110 VAC

0.1A @ 240 VAC

Standards

ANSI/IEEE 802.3
ANSI/IEEE 802.3u
ANSI/IEEE 802.3x

EMC/Safety Compliances

CE Mark
Emissions

FCC Class B
VCCI Class B
EN55022 (CISPR 22) Class B
C-Tick - AS/NZS 3548 (1995) Class B

Immunity

IEC 1000-4-2/3/4

Safety

CSA/NRTL (C22.2.950, UL 1950)
TÜV/GS (EN60950)

Limited Warranty

Lifetime

CABLE SPECIFICATIONS

Cable Type and Connector

RJ-45 Connector Pin Assignments
Caution: DO-NOT plug a phone jack connector into

any RJ-45 port. Use only twisted-pair cables with RJ-45
connectors that conform with FCC standards.

An Ethernet or Fast Ethernet twisted-pair link segment
requires two pairs of wires. Each wire pair is identified
by two different colors. For example, one wire might
be green and the other, green with a white stripe.

Each wire pair must be attached to the RJ-45 connector
in a specific orientation. Note how the pins are
numbered in the illustration below. Be sure to hold the
connectors in the same orientation when attaching the
wires to the pins.

Note: The + and - signs are used to represent the
polarity of the wires that make up each wire pair.

CONNECTIVITY GUIDELINES

Note: Network diameter is defined as the wire distance
between two end stations in the same collision domain.