SMC Networks EZ 10/100 User manual

38 Tesla
Irvine, CA 92618
Phone: [phone]
EZ Hub 10/100
User Guide
From SMC’s EZ line of low-cost workgroup LAN solutions
Sep 2002
Pub. # 150000018900B R01

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
All rights reserved. Printed in Taiwan
Trademarks:
SMC is a registered trademark; and EZ Hub is a trademark of SMC Networks, Inc. Other product and
company names are trademarks or registered trademarks of their respective holders.

L IMITED W ARRANTY
Limited Warranty
Limited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be
free from defects in workmanship and materials, under normal 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/index.cfm?action=customer_service_warranty.
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.

L IMITED W ARRANTY
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

i
C OMPLIANCES
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, there is no
guarantee that the 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 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
SMC contact for these products in Europe is:
SMC Networks Europe,
Edificio Conata II,
Calle Fructuós Gelabert 6-8, 2o, 4a,
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 B 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 -
1000MHz with 1kHz AM 80% Modulation: 3V/m)
* Electrical fast transient/burst according to EN 61000-4-4:1995(AC/DC power
supply: ±1kV, Data/Signal lines: ±0.5kV)
* Surge immunity test according to EN 61000-4-5:1995(AC/DC Line to Line:
±1kV, AC/DC Line to Earth: ±2kV )

C OMPLIANCES
ii
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 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 B prescrites dans la norme sur le matériel brouilleur: “Appareils
Numériques,” NMB-003 édictée par le ministère des Communications.
* Immunity to conducted disturbances, Induced by radio-frequency fields: EN
61000-4-6:1996(0.15 - 80MHz with 1kHz AM 80% Modulation: 3V/m)
* Power frequency magnetic field immunity test according to EN
61000-4-8:1993(1A/m at frequency 50Hz)
* Voltage dips, short interruptions and voltage variations immunity test according
to EN 61000-4-11:1994(>95% Reduction @10ms, 30% Reduction @500ms,
>95% Reduction @5000ms)
LVD: * EN60950(A1/1992; A2/1993; A3/1993; A4/1995; A11/1997)

T ABLE OF C ONTENTS
iii
T ABLE OF C ONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description of Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installing the Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Equipment Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Selecting a Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Sample Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cable Type and Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
RJ-45 Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EZ Hub 10/100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SMC-EZ5805DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SMC-EZ5808DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SMC-EZ5816DS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

T ABLE OF C ONTENTS
iv

1
I NTRODUCTION
I NTRODUCTION
This manual describes how to install and use SMC’s EZHub 10/100. It
features 5,8 or 16 10/100 Mpbs Auto sensing ports, and provides the
flexibility to fit into your working space with network environment. The
EZ Hub 10/100 can be used to connect with PCs, servers, hubs, bridges,
other switches and routers. It can also act as a bridge between 10Mbps and
100Mbps networks segments.
This EZ Hub supports 10Mbps and 100Mbps dedicated bandwidths in
each port. The hub is built with plug & play, auto-sensing on all ports, as
well as half and full-duplex operations, store-and-forward transmission
scheme, IEEE802.3x flow control and back pressure operation for easy
installation and smooth transition from legacy 10Mbps to 100Mbps
Ethernet networks. All ports support MDI/MDI-X to facilitate your
network expansion.
Description of Hardware
SMC’s EZ Hub™ 10/100, SMC-EZ5805DS, SMC-EZ5808DS and
SMC-EZ5816DS, are compact dual-speed hubs featuring 5/8/16
10BASE-T/100BASE-TX auto-sensing ports. These hubs provide an ideal
bridge between 10 Mbps and 100 Mbps Ethernet networks.
Features and Benefits
• IEEE 802.3 and 802.3u compliance ensures compatibility with
standards-based hubs, switches and cards from any vendor
• 8/16 dual-speed 10/100 Mbps auto-sensing ports
• Plug and play—nothing to configure

I NTRODUCTION
2
• 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
• Jabber lock-up function automatically stops transmission of abnormal
frames to prevent network disruption
• Automatic polarity detection and correction
• Desktop installation
Front Panel LEDs
The front panel of the hub provides status LEDs for “at-a-glance” system
monitoring. The following table details the functions of the various
indicators:
Port and Hub Status LEDs
LEDs Condition Status
Power Green Hub is receiving power.
Speed Green Indicates that the port is
transmitting or receiving data at 100
Mbps.
Off Indicates that the port is
transmitting or receiving data at 10
Mbps.
Link/Activity Green Indicates a valid network
connection between the port and
the attached device.
Off Indicates no network connection
established between the port and
the attached device.
Flashing
Green
Indicates that the port is
transmitting or receiving data.

I NTRODUCTION
3
SMC-EZ5805DS
SMC-EZ5808DS
SMC-EZ5816DS
Rear Panel
These EZ Hub 10/100 models feature 5/8/16 10BASE-T/100BASE-TX
ports with RJ-45 connectors located on the rear panel of the hub. Each
port contains a built-in wiring crossover (MDI-X) that allows for the use
of straight-through twisted-pair cable for connections to devices without
built-in crossover ports (i.e., workstations, printers, etc.).
The DC power receptacle is also located on the rear panel of the hub.

I NSTALLING THE H UB
4
I NSTALLING THE H UB
The EZ Hub 10/100 can be placed on a desktop or shelf and stacked with
other devices using the provided 4 rubber foot pads
Equipment Checklist
After unpacking the EZ Hub 10/100, check the contents of the box to be
sure you’ve received the following components:
• EZ Hub 10/100 SMC-EZ5805DS, SMC-EZ5808DS or
SMC-EZ5816DS
• Appropriate DC power adapter
• Four rubber foot pads
• SMC Warranty Registration Card
•ThisUserGuide
Selecting a Site
Be sure to follow the site selection guidelines below when choosing a
location:
• Select a suitable location for the hub:
• It should be accessible for installing, cabling and maintaining the
hub.
• The temperature and humidity should be within the ranges listed
in the specifications.
• The status LEDs should be clearly visible.

I NSTALLING THE H UB
5
• There should be adequate space (approximately two inches) on all
sides for proper air flow.
• 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.
• Make sure that a properly grounded power outlet is within 8 feet (2.44
meters) of the hub and is powered from an independent circuit
breaker. As with any equipment, using a filter or surge suppressor is
recommended.
Instructions
1. Positioning the Hub: For desktop or shelf mounting, attach the four
adhesive foot pads to the bottom of the hub.
2. Applying Power: Plug one end of the power adapter into the socket
on the hub’s rear panel, 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 hub before connecting or
disconnecting any UTP cables, as these actions will not disrupt
the operation of other devices attached to the hub.
3. Connecting PCs: Connect each PC to an RJ-45 port on the hub
using a straight-through twisted-pair cable segment, maximum 100
meters (328 ft.). The EZ Hub 10/100 will support up to 5/8/16 PCs.
4. Cascading Hubs and Other Network Devices: If you need more
ports, connect a crossover port on another device to the Uplink port
on the hub using straight-through twisted-pair cable, maximum 100
meters (328 ft.). Note for the SMC-EZ5808DS, if you are using the
Uplink port you cannot use the fixed crossover Port 8. Also for the
SMC-EZ5816DS, be sure to select the Uplink option via the
push-button switch on Port 16.

S AMPLE A PPLICATIONS
6
S AMPLE A PPLICATIONS
Some typical applications for the EZ Hub 10/100, SMC-EZ5805DS ,
SMC-EZ5808DS and SMC-EZ5816DS are illustrated below:
Standalone LAN
Desktop PC
Printer
Notebook PC
Scanner

S AMPLE A PPLICATIONS
7
Cascading Hubs
100 Mbps
Servers
100 Mbps
Server

T ROUBLESHOOTING
8
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
Hub port, network card or cable may be defective.
Possible Solutions
• Check that the hub 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 Mbps 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.

C ABLE S PECIFICATIONS
9
C ABLE S PECIFICATIONS
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 as detailed below.
10BASE-T Cable
Type Length Connector
Category 3, 4, 5 UTP 100 m (328 ft) RJ-45
100BASE-TX Cable
Type Length Connector
Category 5 UTP 100 m (328 ft) RJ-45

C ABLE S PECIFICATIONS
10
Note: The “+” and “-” signs are used to represent the polarity of the
wires that make up each wire pair.
RJ-45 Pin Assignments
Straight-Through Cable
RJ-45 Pin Assignments
Crossover Cable
End 1 End 2 End 1 End 2
1 (Tx+) 1 (Tx+) 1 (Tx+) 3 (Rx+)
2 (Tx-) 2 (Tx-) 2 (Tx-) 6 (Rx-)
3 (Rx+) 3 (Rx+) 3 (Rx+) 1 (Tx+)
6 (Rx-) 6 (Rx-) 6 (Rx-) 2 (Tx-)