Page 1
EZ Switch 10/100
24-Port Fast Ethernet Switch
24 auto-MDI/X ports – connect to PCs or other switches
or hubs
Plug and play – nothing to configure, no crossover
cables required
Auto-negotiation of speed and duplex mode
Full-duplex support on all ports
Half- and full-duplex flow control
Desktop and rack mountable
User Guide
SMC-EZ1024DT
Page 2
Page 3
EZ Switch 10/100
User Guide
From SMC’s EZ line of low-cost workgroup LAN solutions
38 Tesla
Irvine, CA 92618
Phone: (949) 679-8000
January 2002
Pub. # 150000012200A R01
Page 4
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 © 2002 by
38 Tesla
Irvine, CA 92618
Phone: (949) 679-8000
All rights reserved. Printed in Taiwan
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.
Page 5
Limited Warranty
Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be
free from defects in workmanship and materials, under nor mal use and service, for the
applicable warranty term. All SMC products carry a standard 90-day limited warranty from the
date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair
or replace any product not operating as warranted with a similar or functionally equivalent
product, during the applicable warranty term. SMC will endeavor to repair or replace any
product returned under warranty within 30 days of receipt of the product.
The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering
new products within 30 days of purchase from SMC or its Authorized Reseller. Registration
can be accomplished via the enclosed product registration card or online via the SMC web site.
Failure to register will not affect the standard limited warranty. The Limited Lifetime warranty
covers a product during the Life of that Product, which is defined as the period of time during
which the product is an “Active” SMC product. A product is considered to be “Active” while it
is listed on the current SMC price list. As new technologies emerge, older technologies become
obsolete and SMC will, at its discretion, replace an older product in its product line with one
that incorporates these newer technologies. At that point, the obsolete product is discontinued
and is no longer an “Active” SMC product. A list of discontinued products with their
respective dates of discontinuance can be found at:
http://www.smc.com/smc/pages_html/support.html.
All products that are replaced become the property of SMC. Replacement products may be
either new or reconditioned. Any replaced or repaired product carries either a 30-day limited
warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible
for any custom software or firmware, configuration information, or memory data of Customer
contained in, stored on, or integrated with any products returned to SMC pursuant to any
warranty. Products returned to SMC should have any customer-installed accessory or add-on
components, such as expansion modules, removed prior to returning the product for
replacement. SMC is not responsible for these items if they are returned with the product.
Customers must contact SMC for a Return Material Authorization number prior to returning
any product to SMC. Proof of purchase may be required. Any product returned to SMC
without a valid Return Material Authorization (RMA) number clearly marked on the outside of
the package will be returned to customer at customer’s expense. For warranty claims within
North America, please call our toll-free customer support number at (800) 762-4968.
Customers are responsible for all shipping charges from their facility to SMC. SMC is
responsible for return
shipping charges from SMC to customer.
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L
IMITED WARRANTY
WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS
WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR
REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE
FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN
LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED,
EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE,
INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR
AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER
LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION,
MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE
UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE
ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY
CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER
INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR
ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY
ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.
LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT
OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR
INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE
DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR
OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE
SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR
INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED
RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES
OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS
MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS
WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.
* SMC will provide warranty service for one year following discontinuance from the active
SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans,
and cables are covered by a standard one-year warranty from date of purchase.
SMC Networks, Inc.
38 Tesla
Irvine, CA 92618
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C
OMPLIANCES
FCC - Class A
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A computing device pursuant to
Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against
such interference when operated in a commercial environment. Operation of this equipment in a
residential area is likely to cause interference, in which case the user, at his own expense, will be
required to take whatever measures may be required to correct the interference. You are cautioned
that changes or modifications not expressly approved by the party responsible for compliance
could void your authority to operate the equipment.
You may use Category 5 or 5e UTP or STP cable for RJ-45 connections. Use 62.5/125 or 50/125
micron multimode fiber cable, or 9/125 singlemode fiber cable for SC connections.
War ni ngs 1.
Wear an anti-static wrist strap or take other suitable measures to prevent
electrostatic discharge when handling this equipment.
2.
When connecting this hub to a power outlet, connect the field ground lead on the
tri-pole power plug to a valid earth ground line to prevent electrical hazards.
Industry Canada - Class A
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,”
ICES-003 of the Department of Communications.
Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils
numériques de Classe A prescrites dans la norme sur le matériel brouilleur: “Appareils
Numériques,” NMB-003 édictée par le ministère des Communications.
Japan VCCI Class A
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C
OMPLIANCES
EC Conformance Declaration - Class A
SMC contact for these products in Europe is:
SMC Networks Europe,
Edificio Conata II,
Calle Fructuós Gelabert 6-8, 2
08970 - Sant Joan Despí,
Barcelona, Spain.
This information technology equipment complies with the requirements of the Council
Directive 89/336/EEC on the Approximation of the laws of the Member States relating to
Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain
voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the
compliance with these Directives, the following standards were applied:
RFI Emission: • Limit class A according to EN 55022:1998
• Limit class A for harmonic current emission according to
EN 61000-3-2/1995
• Limitation of voltage fluctuation and flicker in low-voltage supply
system according to EN 61000-3-3/1995
Immunity: • Product family standard according to EN 55024:1998
• Electrostatic Discharge according to EN 61000-4-2:1995
(Contact Discharge: ±4 kV, Air Discharge: ±8 kV)
• Radio-frequency electromagnetic field according to
EN 61000-4-3:1996
(80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/
DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV)
• Surge immunity test according to EN 61000-4-5:1995
(AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)
• Immunity to conducted disturbances, Induced by radio-frequency
fields: EN 61000-4-6:1996
(0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m)
• Power frequency magnetic field immunity test according to
EN 61000-4-8:1993
(1 A/m at frequency 50 Hz)
• Voltage dips, short interruptions and voltage variations immunity test
according to EN 61000-4-11:1994
(>95% Reduction @10 ms, 30% Reduction @500 ms, >95%
Reduction @5000 ms)
LVD: • EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997)
o
, 4a,
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C
OMPLIANCES
Australia AS/NZS 3548 (1995) - Class A
SMC contact for products in Australia is:
SMC Communications Pty. Ltd.
Suite 18, 12 Tryon Road,
Lindfield NSW2070,
Phone: 61-2-94160437
Fax: 61-2-94160474
Safety Compliance
Underwriters Laboratories Compliance Statement
Important! Before making connections, make sure you have the correct cord set. Check it
(read the label on the cable) against the following:
Operating Voltage Cord Set Specifications
120 Volts UL Listed/CSA Certified Cord Set
Minimum 18 AWG
Type SVT or SJT three conductor cord
Maximum length of 15 feet
Parallel blade, grounding type attachment plug rated
15A, 125V
240 Volts (Europe only) Cord Set with H05VV-F cord having three
conductors with minimum diameter of 0.75 mm
IEC-320 receptacle
Male plug rated 10A, 250V
2
The unit automatically matches the connected input voltage. Therefore, no additional
adjustments are necessary when connecting it to any input voltage within the range marked
on the rear panel.
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C
OMPLIANCES
Wichtige Sicherheitshinweise (Germany)
1. Bitte lesen Sie diese Hinweise sorgfältig durch.
2. Heben Sie diese Anleitung für den späteren Gebrauch auf.
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine
Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur
Reinigung.
4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.
5. Das Gerät ist vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder
Fallen könnte Beschädigungen hervorrufen.
7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung
schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte
auch nichts auf der Leitung abgestellt werden.
10. Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.
11. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom
Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung
vermieden.
12. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das
Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.
13. Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit
nur von authorisiertem Servicepersonal geöffnet werden.
14. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von
einer qualifizierten Servicestelle zu überprüfen:
a. Netzkabel oder Netzstecker sind beschädigt.
b. Flüssigkeit ist in das Gerät eingedrungen.
c. Das Gerät war Feuchtigkeit ausgesetzt.
d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert oder Sie
mit Hilfe dieser Anleitung keine Verbesserung erzielen.
e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.
f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
15. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden. Für einen
Nennstrom bis 6A und einem Gerätegewicht größer 3kg ist eine Leitung nicht leichter
als H05VV-F, 3G, 0.75mm
Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder
weniger.
2
einzusetzen.
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ABLE OF
About the EZ Switch 10/100 . . . . . . . . . . . . . . . . . .1
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installing the Switch . . . . . . . . . . . . . . . . . . . . . . . .4
Equipment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Selecting a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Sample Applications . . . . . . . . . . . . . . . . . . . . . . . .7
Standalone LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
High-Speed Switch Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Twisted-Pair Cable and Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
C
ONTENTS
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T
ABLE OF CONTENTS
viii
Page 13
A
BOUT THE
EZ S
WITCH
10/100
The EZ Switch™ 10/100 SMC-EZ1024DT is a 24-port Fast Ethernet
switch. The 10BASE-T/100BASE-TX ports deliver dedicated 10/100
Mbps links to each attached LAN segment – all with conventional cabling
and adapters.
Auto-negotiation is used to select the optimal communication mode for
each connection. Auto-sensing is used to select the optimal transmission
speed for each connection. With store-and-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.
EZ Switch10/100
1024DT
Port Status Indicators
123456 789101112
Power
13 14 15 16 17 18 19 20 21 22 23 24
Power Indicator
1
2
Link/Act
10/100
Link/Act
10/100
13
14
10/100 Mbps RJ-45 Ports
34
15 16
78
19 20
9
21
5
6
17
18
Features and Benefits
11 12
10
23 24
22
◆ Auto-negotiation of half or full duplex, and auto-sensing of
transmission speed, on all ports
◆ Auto configuration for MDI/MDI-X cable connection allows
connections to servers, workstations, hubs or switches to be made
with straight-through cabling
◆ 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
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A
BOUT THE
EZ S
WITCH
10/100
◆ Plug-and-play
◆ “At-a-glance” LEDs for port and system status monitoring
◆ Desktop and rack mountable
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:
123 456 789101112
EZ Switch 10/100
1024DT
Power
13 14 15 16 17 18 19 20 21 22 23 24
Port and Switch Status LEDs
LED Condition Status
Power On Green The switch is receiving power.
RJ-45 Ports
Link/Act On The port has established a valid network
connection.
Flashing Traffic is passing through the port.
Off The port has not established any network
connection.
10/100 On Communications have been set to 100 Mbps.
Off Communications have been set to 10 Mbps.
Link/Act
10/100
Link/Act
10/100
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Port and Switch Status LEDs
LED Condition Status
R
EAR PANEL
FDX
On The port is in full-duplex mode.
Off The port is in half-duplex mode.
Flashing Packet collision is occurring in half-duplex
mode.
Rear Panel
The AC power socket is located on the rear panel of the switch.
100-240VAC, 50-60 Hz, 1A
100-240VAC 50-60Hz 1A
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I
NSTALLING THE
The EZ Switch 10/100 can be placed on a desktop or shelf, or installed in
a standard 19-inch equipment rack.
SWITCH
Equipment Checklist
After unpacking the EZ Switch 10/100, check the contents of the box to
be sure you have received the following components:
• EZ Switch 10/100 SMC-EZ1024DT
• Appropriate AC power cable
• Rackmount kit
• SMC Warranty Registration Card
•This User Guide
Immediately inform your dealer in the event of any incorrect, missing or
damaged parts. If possible, please retain the carton and original packing
materials in case there is a need to return the product.
Please fill out and return the Warranty Registration Card to SMC or
register on SMC’s Web site at: www.smc.com. The EZ Switch 10/100 is
covered by a limited lifetime warranty.
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Selecting a Site
Be sure to follow the site selection guidelines below when choosing a
location:
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.
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
rack-environment temperature is within the specified operating
temperature range.
S
ELECTING A SITE
• Mechanical Loading: Do not place any equipment on top of
a rack-mounted switch.
• Circuit Overloading: Be s ure that the su pply 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.
Make sure twisted-pair cable is always routed away from power lines,
fluorescent lighting fixtures and other sources of electrical interference
such as radios and transmitters.
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I
NSTALLING THE SWITCH
Make sure that a properly grounded power outlet is within 2.44 meters
(8 feet) 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 feet to the bottom of the switch. For rack-mounting,
attach the mounting brackets on both sides of the switch with the
screws provided, and 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 power is
on.
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
100 meters (328 feet). Use Category 3, 4, or 5 cable for 10 Mbps
connections, and Category 5 cable for all 100 Mbps connections. The
EZ Switch 10/100 will support up to 24 PCs. See the the “Cable
Specifications” and “Connectivity Guidelines” sections of this guide
for further information.
Note: If an attached device does not support auto-negotiation, the
data rate will be sensed automatically and communication
mode will default to half duplex.
4. Cascading Switches and Other Network Devices: All the
ports on the switch support automatic MDI/MDI-X configuration for
cable connections. This allows you to use straight-through cable to
connect to other switches or hubs from any port on the switch. No
crossover cables or other device settings are needed. See the “Cable
Specifications” and “Connectivity Guidelines” sections of this guide
for further information.
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S
AMPLE
A
PPLICATIONS
Some typical applications for the EZ Switch 10/100 are illustrated below:
Standalone LAN
In the figure below, the EZ Switch 10/100 is operating as a collapsed
backbone for a small LAN. It is providing dedicated 10 Mbps full-duplex
connections to workstations and 200 Mbps full-duplex connections to
power users and servers.
EZ Switch 10/100
9
11 12
10
78
6
21
19 20
18
23 24
22
10 Mbps Workstations
200 Mbps
Full Duplex
123456789101112
EZSwitch10/100
1024DT
Power
13 14 15 16 17 18 1920 21 22 23 24
200 Mbps Full Duplex
Power Users
5
1
34
2
Link/Act
10/100
Link/Act
10/100
13
17
15 16
14
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S
AMPLE APPLICATIONS
High-Speed Switch Links
In this application a 200 Mbps full-duplex link is made to a second
EZ 10/100 switch.
EZ Switch 10/100
9101112
9101112
12345678
12345678
Link/Act
EZSwitch10/100
1024DT
Link/Act
10/100
10/100
Link/Act
Link/Act
Power
Power
10/100
10/100
2021 22 23 24
2021 22 23 24
1314 15 16 17 18 19
1314 15 16 17 18 19
200 Mbps Full Duplex
Servers
1
13
13
78
34
78
34
6
2
6
2
17
21
17
15 16
15 16
14
14
200 Mbps Full Duplex
21
19 20
19 20
18
18
Power Users
9
9
5
1
5
200 Mbps Full Duplex
11 12
11 12
10
10
23 24
23 24
22
22
EZ Hub 100
EZ Switch 10/100
123456789101112
123456789101112
Link/Act
Power
Power
1314 15 16 17 18 19 20 21 22 23 24
1314 15 16 17 18 19 20 21 22 23 24
Link/Act
10/100
10/100
Link/Act
Link/Act
10/100
10/100
EZSwitch10/100
1024DT
100 Mbps Segments
1
1
2
2
13
13
14
14
34
34
15 16
15 16
5
5
6
6
17
17
18
18
9
9
78
78
21
21
19 20
19 20
EZ Hub 100
11 12
11 12
10
10
23 24
23 24
22
22
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T
ROUBLESHOOTING
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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C
ABLES
Cable Specifications
Cable Types and Specifications
Cable Type Max. Length Connector
10BASE-T Cat. 3, 4, 5 100-ohm UTP 100 m (328 ft) RJ-45
100BASE-TX Cat. 5 100-ohm UTP 100 m (328 ft) RJ-45
Twisted-Pair Cable and 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.
For 10BASE-T/100BASE-TX connections, a twisted-pair cable must have
two pairs of wires. Each wire pair is identified by two different colors. For
example, one wire might be red and the other, red with white stripes. Also,
an RJ-45 connector must be attached to both ends of the cable.
Caution: Each wire pair must be attached to the RJ-45 connectors in a
specific orientation.
10
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T
WISTED-PAIR CABLE AND PIN ASSIGNMENTS
The figure below illustrates how the pins on the RJ-45 connector are
numbered. Be sure to hold the connectors in the same orientation when
attaching the wires to the pins.
10BASE-T/100BASE-TX Pin Assignments
With standard straight-through 10BASE-T/100BASE-TX cable, pins 1 and
2 are used for transmitting data, and pins 3 and 6 for receiving data. The
“+” and “-” signs in the table below are used to represent the polarity of the
wires that make up each wire pair.
Because all ports on this switch support automatic MDI/MDI-X
operation, you can use straight-through cables for all network connections
to PCs or servers, or to other switches or hubs..
Straight-Through RJ-45 Pin Assignments
End 1 End 2
1 (Tx+) 1 (Tx+)
2 (Tx-) 2 (Tx-)
3 (Rx+) 3 (Rx+)
6 (Rx-) 6 (Rx-)
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C
ABLES
Connectivity Guidelines
Maximum Fast Ethernet Network Diameter
Repeater Type and
Number
1 Class I 200 m (656 ft) 260.8 m (855.4 ft)
1 Class II 200 m (656 ft) 308.8 m (1012.6 ft)
2 Class II 205 m (672.4 ft) 216.2 m (709.1 ft)
Note: Network diameter is defined as the wire distance between two
end stations in the same collision domain.
Twisted Pair
100BASE-TX
Twisted Pair/Fiber
100BASE-TX and FX
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EZ Switch 10/100
Model
SMC-EZ1024DT
Ports
24 RJ-45 ports
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 (10/100 Mbps) – one per port
Switching Method
Store-and-forward
MAC Address Table
8K entries per system
S
PECIFICATIONS
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S
PECIFICATIONS
Filtering/Forwarding/Learning Rates
Full line rate
Size
33.0 x 20.4 x 4.4 cm (13.0 x 8.0 x 1.7 in)
Weight
1.945 kg (4 lbs 5 oz)
Temperature
Operating: 0° to 40° C (32° to 104° F)
Storage: -40° to 70° C (-40° to 158° F)
Humidity, non-condensing
10% to 90%
Power Requirements
Universal AC input; 110 to 230 VAC, 47 to 63 Hz
Power Consumption
13.2 Watts maximum
Heat Dissipation
45 BTU/hr maximum
Maximum Current
0.5A @ 110 VAC
0.22A @ 240 VAC
MTBF
60,000 hours @ 25°C
25,000 hours @ 50°C
Standards
IEEE 802.3
IEEE 802.3u
IEEE 802.3x
ISO/IEC 8802-3
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Page 28
FOR TECHNICAL SUPPORT, CALL:
From U.S.A. and Canada (24 hours a day, 7 days a week)
(800) SMC-4-YOU; (949) 679-8000; Fax: (949) 679-1481
From Europe (8:00 AM - 5:30 PM UK Time)
44 (0) 118 974 8700; Fax: 44 (0) 118 974 8701
INTERNET
E-mail addresses:
techsupport@smc.com
european.techsupport@smc-europe.com
Driver updates:
http://www.smc.com/index.cfm?action=tech support drivers downloads
World Wide Web:
http://www.smc.com/
http://www.smc-europe.com/
FOR LITERATURE OR ADVERTISING RESPONSE, CALL:
U.S.A. and Canada: (800) SMC-4-YOU; Fax (949) 679-1481
Spain: 34-93-477-4935; Fax 34-93-477-3774
UK: 44 (0) 118 974 8700; Fax 44 (0) 118 974 8701
France: 33 (0) 41 38 32 32; Fax 33 (0) 41 38 01 58
Italy: 39 02 739 12 33; Fax 39 02 739 14 17
Benelux: 31 33 455 72 88; Fax 31 33 455 73 30
Central Europe: 49 (0) 89 92861-0; Fax 49 (0) 89 92861-230
Switzerland: 41 (0) 1 9409971; Fax 41 (0) 1 9409972
Nordic: 46 (0) 868 70700; Fax 46 (0) 887 62 62
Northern Europe: 44 (0) 118 974 8700; Fax 44 (0) 118 974 8701
Eastern Europe: 34 -93-477-4920; Fax 34 93 477 3774
Sub Saharian Africa: 27-11 314 1133; Fax 27-11 314 9133
North Africa: 34 93 477 4920; Fax 34 93 477 3774
Russia: 7 (095) 290 29 96; Fax 7 (095) 290 29 96
PRC: 86-10-6235-4958; Fax 86-10-6235-4962
Taiwan: 886-2-2659-9669; Fax 886-2-2659-9666
Asia Pacific: (65) 238 6556; Fax (65) 238 6466
Korea: 82-2-553-0860; Fax 82-2-553-7202
Japan: 81-45-224-2332; Fax 81-45-224-2331
Australia: 61-2-9416-0437; Fax 61-2-9416-0474
India: 91-22-8204437; Fax 91-22-8204443
If you are looking for further contact information, please visit www.smc.com or
www.smc-europe.com.
38 Tesla
Irvine, CA 92618
Phone: (949) 679-8000
Model Number: SMC-EZ1024DT
Publication Number: 150000012200A E012002-R01
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