From SMC’s Tiger line of feature-rich workgroup LAN solutions
38 Tesla
Irvine, CA 92618
Phone: (949) 679-8000
October 2005
Pub. # 150200053300A
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.
SMC is a registered trademark; and EZ Switch, TigerStack and TigerSwitch are trademarks of SMC
Networks, Inc. Other product and company names are trademarks or registered trademarks of their
respective holders.
L
IMITED
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.
W
ARRANTY
i
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
ii
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FCC - Class A
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 will be required to correct the interference at his
own expense.
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 unshielded twisted-pair (UTP) for RJ-45 connections - Category 3 or better for 10
Mbps connections, Category 5 or better for 100 Mbps connections, Category 5, 5e, or 6 for 1000
Mbps connections. For fiber optic connections, you may use 50/125 or 62.5/125 micron
multimode fiber or 9/125 micron single-mode fiber.
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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CE Mark Declaration of Conformance for EMI and Safety
(EEC)
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:
Immunity:
LVD:
• 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
• 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)
• EN 60950-1:2001
o
, 4a,
War ni ng :
Attention: Les raccordeurs ne sont pas utilisés pour le système téléphonique!
Do not plug a phone jack connector in the RJ-45 port. This may damage this device.
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Safety Compliance
Warning: Fiber Optic Port Safety
CLASS I
LASER DEVICE
When using a fiber optic port, never look at the transmit laser while
it is powered on. Also, never look directly at the fiber TX port and
fiber cable ends when they are powered on.
Avertissment: Ports pour fibres optiques - sécurité sur le plan optique
DISPOSITIF LASER
DE CLASSE I
Ne regardez jamais le laser tant qu’il est sous tension. Ne regardez
jamais directement le port TX (Transmission) à fibres optiques et les
embouts de câbles à fibres optiques tant qu’ils sont sous tension.
Niemals ein Übertragungslaser betrachten, während dieses
ÄT
eingeschaltet ist. Niemals direkt auf den Faser-TX-Anschluß und auf
die Faserkabelenden schauen, während diese eingeschaltet sind.
Power Cord Safety
Please read the following safety information carefully before installing the switch:
:
WA RN IN G
• The unit must be connected to an earthed (grounded) outlet to comply with international
safety standards.
• Do not connect the unit to an A.C. outlet (power supply) without an earth (ground)
connection.
• The appliance coupler (the connector to the unit and not the wall plug) must have a
configuration for mating with an EN 60320/IEC 320 appliance inlet.
• The socket outlet must be near to the unit and easily accessible. You can only remove power
from the unit by disconnecting the power cord from the outlet.
• This unit operates under SELV (Safety Extra Low Voltage) conditions according to
IEC 60950. The conditions are only maintained if the equipment to which it is connected also
operates under SELV conditions.
Installation and removal of the unit must be carried out by qualified personnel only.
France and Peru only
This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be
powered by 230 V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point
labelled Neutral, connected directly to earth (ground).
†
Impédance à la terre
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Important!
label on the cable) against the following:
Power Cord Set
U.S.A. and CanadaThe cord set must be UL-approved and CSA certified.
DenmarkThe supply plug must comply with Section 107-2-D1, Standard
SwitzerlandThe supply plug must comply with SEV/ASE 1011.
U.K.The supply plug must comply with BS1363 (3-pin 13 A) and be fitted
EuropeThe supply plug must comply with CEE7/7 (“SCHUKO”).
Before making connections, make sure you have the correct cord set. Check it (read the
The minimum specifications for the flexible cord are:
- No. 18 AWG - not longer than 2 meters, or 16 AWG.
- Type SV or SJ
- 3-conductor
The cord set must have a rated current capacity of at least 10 A
The attachment plug must be an earth-grounding type with NEMA
5-15P (15 A, 125 V) or NEMA 6-15P (15 A, 250 V) configuration.
DK2-1a or DK2-5a.
with a 5 A fuse which complies with BS1362.
The mains cord must be <HAR> or <BASEC> marked and be of
type HO3VVF3GO.75 (minimum).
The mains cord must be <HAR> or <BASEC> marked and be of
type HO3VVF3GO.75 (minimum).
IEC-320 socket.
Veuillez lire à fond l'information de la sécurité suivante avant
d'installer le Switch:
AVERTISSEMENT:
qualifié.
• Ne branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il n'y a pas
de connexion de mise à la terre (mise à la masse).
• Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la masse) afin de respecter
les normes internationales de sécurité.
• Le coupleur d’appareil (le connecteur du groupe et non pas la prise murale) doit respecter
configuration qui permet un branchement sur une entrée d’appareil EN 60320/IEC
• La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. Vous ne
pouvez mettre l’appareil hors circuit qu’en débranchant son cordon électrique au niveau de
cette prise.
• L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la
norme IEC 60950. Ces conditions ne sont maintenues que si l’équipement auquel il est
raccordé fonctionne dans les mêmes conditions.
L’installation et la dépose de ce groupe doivent être confiés à un personnel
vi
une
320.
C
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France et Pérou uniquement:
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont
du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le
biais d’un transformateur d’isolement à rapport 1:1, avec un point secondaire de connexion portant
l’appellation Neutre et avec raccordement direct à la terre (masse).
Cordon électrique - Il doit être agréé dans le pays d’utilisation
Etats-Unis et
Canada:
Danemark:La prise mâle d’alimentation doit respecter la section 107-2 D1 de la
Suisse:La prise mâle d’alimentation doit respecter la norme SEV/ASE 1011.
EuropeLa prise secteur doit être conforme aux normes CEE 7/7
Le cordon doit avoir reçu l’homologation des UL et un certificat de la
CSA.
Les spécifications minimales pour un cable flexible sont AWG No. 18,
ouAWG No. 16 pour un cable de longueur inférieure
- type SV ou SJ
- 3 conducteurs
Le cordon doit être en mesure d’acheminer un courant nominal d’au
moins 10 A.
La prise femelle de branchement doit être du type à mise à la terre
(mise à la masse) et respecter la configuration NEMA 5-15P (15 A,
125 V) ou NEMA 6-15P (15 A, 250 V).
norme DK2 1a ou DK2 5a.
(“SCHUKO”)
LE cordon secteur doit porter la mention <HAR> ou <BASEC> et
doit être de type HO3VVF3GO.75 (minimum).
à
2 métres.
Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen:
WARNUNG:
• Das Gerät sollte nicht an eine ungeerdete Wechselstromsteckdose angeschlossen werden.
• Das Gerät muß an eine geerdete Steckdose angeschlossen werden, welche die internationalen
Sicherheitsnormen erfüllt.
• Der Gerätestecker (der Anschluß an das Gerät, nicht der Wandsteckdosenstecker) muß einen
gemäß EN 60320/IEC 320 konfigurierten Geräteeingang haben.
• Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein. Die
Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der
Netzsteckdose unterbrochen werden.
• Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen (Sicherheitskleinstspannung)
gemäß IEC 60950. Diese Bedingungen sind nur gegeben, wenn auch die an das Gerät
angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.
Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.
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Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden:
SchweizDieser Stromstecker muß die SEV/ASE 1011Bestimmungen
EuropeDas Netzkabel muß vom Typ HO3VVF3GO.75
einhalten.
(Mindestanforderung) sein und die Aufschrift <HAR> oder
<BASEC> tragen.
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).
Warnings and Cautionary Messages
Warning:This product does not contain any serviceable user parts.
Warning:Installation and removal of the unit must be carried out by qualified personnel
Warning:When connecting this device to a power outlet, connect the field ground lead
Warning:This switch uses lasers to transmit signals over fiber optic cable. The lasers are
Caution:Wear an anti-static wrist strap or take other suitable measures to prevent
Caution:Do not plug a phone jack connector in the RJ-45 port. This may damage this
Caution:Use only twisted-pair cables with RJ-45 connectors that conform to FCC
only.
on the tri-pole power plug to a valid earth ground line to prevent electrical
hazards.
compliant with the requirements of a Class 1 Laser Product and are inherently
eye safe in normal operation. However, you should never look directly at a
transmit port when it is powered on.
electrostatic discharge when handling this equipment.
device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!
standards.
Warnings (in German)
Achtung:Dieses Produkt enthält keine Teile, die eine Wartung vom Benutzer benötigen.
Achtung:Installation und Deinstallation des Gerätes müssen von qualifiziertem
Achtung:Wenn das Gerät an eine Steckdose angeschlossen wird, muß der Masseanschluß
Achtung:Dieses Gerät nutzt Laser zur Signalübertragung über Glasfasern. Die Laser
Servicepersonal durchgeführt werden.
am dreipoligen Netzstecker mit Schutzerde verbunden werden, um elektrische
Gefahren zu vermeiden.
entsprechen den Anforderungen an eine Lasereinrichtung der Klasse 1 und sind
durch ihre Bauart im normalen Betrieb sicher für die Augen. Trotzdem sollte
niemals direkt in den einen Übertragungskanal geblickt werden, wenn er
eingeschaltet ist.
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Environmental Statement
The manufacturer of this product endeavours to sustain an environmentally-friendly policy
throughout the entire production process. This is achieved though the following means:
• Adherence to national legislation and regulations on environmental production standards.
• Conservation of operational resources.
• Waste reduction and safe disposal of all harmful un-recyclable by-products.
• Recycling of all reusable waste content.
• Design of products to maximize recyclables at the end of the product’s life span.
• Continual monitoring of safety standards.
End of Product Life Span
This product is manufactured in such a way as to allow for the recovery and disposal of all
included electrical components once the product has reached the end of its life.
Manufacturing Materials
There are no hazardous nor ozone-depleting materials in this product.
Documentation
All printed documentation for this product uses biodegradable paper that originates from
sustained and managed forests. The inks used in the printing process are non-toxic.
Purpose
This guide details the hardware features of the switch, including its physical and
performance-related characteristics, and how to install the switch.
Audience
The guide is intended for use by network administrators who are responsible for installing and
setting up network equipment; consequently, it assumes a basic working knowledge of LANs
(Local Area Networks).
Diese Anleitung ist f
Installation und das einstellen von Netzwerkkomponenten verantwortlich sind; sie setzt
Erfahrung bei der Arbeit mit LANs (Local Area Networks) voraus.
ür die Benutzung durch Netzwerkadministratoren vorgesehen, die für die
Related Publications
The following publication gives specific information on how to operate and use the management
functions of the switch:
The SMC8748L2 Management Guide
Also, as part of the switch’s firmware, there is an online web-based help that describes all
management related features.
SMC’s TigerSwitch SMC8748L2 is an intelligent switch with 48 10/100/
1
1000BASE-T ports, four of which are combination ports
with four Small Form Factor Pluggable (SFP) transceiver slots (see Figure
1-1, Ports 45-48), and 2 optional expansion slots on the rear panel for
10GBASE modules.
The switch includes an SNMP-based management agent embedded on the
main board, which supports both in-band and out-of-band access for
managing the switch.
The switch provides a broad range of powerful features for Layer 2
switching, delivering reliability and consistent performance for your
network traffic. It brings order to poorly performing networks by
segregating them into separate broadcast domains with IEEE 802.1Q
compliant VLANs, and empowers multimedia applications with multicast
switching and CoS services.
that are shared
1
1. RJ-45 ports 45-48 shared with a SFP tranceiver slots. If an SFP transceiver is plugged in, the
corresponding RJ-45 port is disabled.
1-1
A
BOUT THE TIGERSWITCH
SFP Slots
Console Port
System Indicators
Power Socket
Module Slots
Port Status Indicators
10/100/1000 Mbps RJ-45 Ports
Redundant Power Socket
Figure 1-1 Front and Rear Panels
Switch Architecture
The SMC8748L2 switch employs a wire-speed, non-blocking switching
fabric. This permits simultaneous wire-speed transport of multiple packets at
low latency on all ports. The switch also features full-duplex capability on all
ports, which effectively doubles the bandwidth of each connection.
The switch uses store-and-forward switching to ensure maximum data
integrity. With store-and-forward switching, the entire packet must be
received into a buffer and checked for validity before being forwarded. This
prevents errors from being propagated throughout the network.
The switch also includes two slots on the rear panel for slide-in single-port
10GBASE modules that support XFP transceivers.
1-2
D
ESCRIPTION OF HARDWARE
Network Management Options
The SMC8748L2 switch contains a comprehensive array of LEDs for
“at-a-glance” monitoring of network and port status. It also includes a
management agent that allows you to configure or monitor the switch using
its embedded management software, or via SNMP applications.
To manage the switch, you can make a direct connection to the RS-232
console port (out-of-band), or you can manage it through a network
connection (in-band) using Telnet, the on-board Web agent, or SNMP-based
network management software.
For a detailed description of the advanced features, refer to the Management
Guide.
Description of Hardware
10/100/1000BASE-T Ports
The SMC8748L2 contains 48 10/100/1000BASE-T RJ-45 ports that operate
at 10 Mbps or 100 Mbps, half or full duplex, or at 1000 Mbps, full duplex.
Because all RJ-45 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. (See “1000BASE-T Pin
Assignments” on page B-5.)
Each of these ports support auto-negotiation, so the optimum transmission
mode (half or full duplex), and data rate (10, 100, or 1000 Mbps) can be
selected automatically. If a device connected to one of these ports does not
support auto-negotiation, the communication mode of that port can be
configured manually.
Each port also supports IEEE 802.3x auto-negotiation of flow control, so
the switch can automatically prevent port buffers from becoming saturated.
1-3
A
BOUT THE TIGERSWITCH
SFP Slots
The SMC8748L2 contains four combination Gigabit RJ-45 ports that are
shared with Small Form Factor Pluggable (SFP) transceiver slots (Ports
45-48,
Figure 1-1 on page 1-2). If an SFP transceiver (purchased separately)
is installed in a slot, the associated RJ-45 port is disabled. The switch can be
configured to force the use of an RJ-45 port or SFP slot, as required.
10-Gigabit Ethernet Module Slots
The SMC8748L2 include two slots on the rear panel for hot-swappable
single-port 10GBASE modules with XFP transceivers. Refer to “Optional
Media Extender Module” on page 1-7 for more information on this module.
Port and System Status LEDs
The SMC8748L2 includes a display panel for key system and port indications
that simplify installation and network troubleshooting. The LEDs, which are
located on the front panel for easy viewing, are shown below and described
in the following tables.
1-4
Port Status LEDs
SFP Port Status LEDs
Figure 1-2 Port LEDs
Table 1-1 Port Status LEDs
LEDConditionStatus
RJ-45/SFP Ports
D
ESCRIPTION OF HARDWARE
Link/
Activity
Note:The SFP status LEDs are only active when the SFP port (45-48) has a valid
On/Flashing
Amber
On/Flashing
Green
OffThere is no valid link on the port.
link.
The port has a valid 10 or 100 Mbps link. Flashing
indicates activity.
The port has a valid 1000 Mbps link. Flashing
indicates activity.
System LEDs
Figure 1-3 System LEDs
Table 1-2 System Status LEDs
LEDConditionStatus
PowerOn GreenInternal power supply is operating normally.
On AmberInternal power supply has failed.
OffPower off or failure.
DiagFlashing AmberSystem self-diagnostic test has failed.
On AmberSystem self-diagnostic test in progress.
On GreenSystem self-diagnostic test successfully
completed.
1-5
A
BOUT THE TIGERSWITCH
Table 1-2 System Status LEDs (Continued)
LEDConditionStatus
RPUOn GreenRedundant power available.
Flashing GreenOperating on redundant power.
On AmberFault in redundant power unit.
OffThere is no redundant power unit currently
attached.
Module 1 /
Module 2
On GreenModule present and operating normally.
On AmberModule present but cannot be accessed or has
failed.
OffModule not present.
Optional Redundant Power Unit
The switch supports an optional Redundant Power Unit (RPU) that can
supply power to the switch in the event of failure of the internal power
supply.
Power Supply Sockets
There are two power sockets on the rear panel of the switch. The standard
power socket is for the AC power cord. The socket labeled “RPU” is for the
optional Redundant Power Unit
Redundant Power Socket
(RPU).
Power Socket
Figure 1-4 Power Supply Sockets
1-6
D
ESCRIPTION OF HARDWARE
Optional Media Extender Module
10GBASE Module
Figure 1-5 Single-Port 10GBASE Module
The 10GBASE module supports 10-Gigabit Ethernet XFP transceivers.
Using multimode fiber cable, a 10GBASE-SR XFP transceiver can connect
to another device up to 300 meters away. Using single-mode fiber cable, a
10GBASE-LR XFP transceiver can connect to a remote site up to 10 km
(6.2 miles) away, and a 10GBASE-ER XFP transceiver can reach a site up to
40 km (24.9 miles) away. All 10GBASE XFP transceivers operate at 10 Gbps
full duplex.
Table 1-3 Module LED
LEDConditionStatus
Link/
Activity
On/Flashing
Green
OffThere is no valid link on the port
The port has a valid 10 Gbps link. Flashing
indicates activity.
1-7
A
BOUT THE TIGERSWITCH
Features and Benefits
Connectivity
•44-port 10/100/100BASE-T plus 4 gigabit combo ports (RJ45/SFP) on
the front panel.
•Auto-negotiation enables each RJ-45 port to automatically select the
optimum speed (10, 100 or 1000 Mbps), and the communication mode
(half or full duplex) if this feature is supported by the attached device;
otherwise the port can be configured manually.
•Independent RJ-45 10/100/1000BASE-T ports with auto MDI/MDI-X
pinout selection.
•Unshielded (UTP) cable supported on all RJ-45 ports: Category 3 or
better for 10
connections, and Category 5, 5e or 6 for 1000 Mbps connections.
•IEEE 802.3-2002 Ethernet, Fast Ethernet, Gigabit Ethernet compliance
ensures compatibility with standards-based hubs, network cards and
switches from any vendor.
Mbps connections, Category 5 or better for 100 Mbps
Expandability
•4 Small Form Factor Pluggable (SFP) transceiver slots (shared with
1000BASE-T ports)
•Supports 1000BASE-SX, 1000BASE-LX, and 1000BASE-LH SFP
transceivers.
•Optional 10GBASE module that supports 10GBASE-SR,
10GBASE-LR, and 10GBASE-ER XFP transceivers.
1-8
F
EATURES AND BENEFITS
Performance
•Transparent bridging
•Switching table with a total of 8K MAC address entries
•Provides store-and-forward switching
•Supports wire-speed filtering and forwarding
•Supports flow control, using back pressure for half duplex and
IEEE
802.3x for full duplex
•Broadcast storm control
Management
•“At-a-glance” LEDs for easy troubleshooting
•Network management agent:
-Manages switch in-band or out-of-band
-Supports console, Telnet, SSH, SNMP, RMON 4 groups and
web-based interface
1-9
A
BOUT THE TIGERSWITCH
1-10
C
HAPTER
N
ETWORK
P
LANNING
Introduction to Switching
A network switch allows simultaneous transmission of multiple packets via
non-crossbar switching. This means that it can partition a network more
efficiently than bridges or routers. The switch has, therefore, been recognized
as one of the most important building blocks for today’s networking
technology.
When performance bottlenecks are caused by congestion at the network
access point (such as the network card for a high-volume file server), the
device experiencing congestion (server, power user, or hub) can be attached
directly to a switched port. And, by using full-duplex mode, the bandwidth of
the dedicated segment can be doubled to maximize throughput.
When networks are based on repeater (hub) technology, the distance between
end stations is limited by a maximum hop count. However, a switch turns the
hop count back to zero. So subdividing the network into smaller and more
manageable segments, and linking them to the larger network by means of a
switch, removes this limitation.
2
A switch can be easily configured in any Ethernet, Fast Ethernet, Gigabit
Ethernet, or 10-Gigabit Ethernet network to significantly boost bandwidth
while using conventional cabling and network cards.
2-1
N
ETWORK PLANNING
Application Examples
The SMC8748L2 is not only designed to segment your network, but also to
provide a wide range of options in setting up network connections. Some
typical applications are described below.
Collapsed Backbone
The SMC8748L2 is an excellent choice for mixed Ethernet, Fast Ethernet,
Gigabit Ethernet, and 10-Gigabit Ethernet installations where significant
growth is expected in the near future. In a basic stand-alone configuration, it
can provide direct full-duplex connections to workstations or servers. You
can easily build on this basic configuration, adding direct full-duplex
connections to workstations or servers. When the time comes for further
expansion, just connect to another switch using one of the Gigabit Ethernet
ports built into the front panel, a Gigabit Ethernet port on a plug-in SFP
transceiver, or a 10G XFP transceiver on an optional module.
In the figure below, the switch is operating as a collapsed backbone for a
small LAN. It is providing dedicated 100
workstations, 1000
Mbps full-duplex connections to power users and servers.
Mbps full-duplex connections to
2-2
Figure 2-1 Collapsed Backbone
A
PPLICATION EXAMPLES
Network Aggregation Plan
This switch provides 48 parallel bridging ports (i.e., 48 distinct collision
domains), which can be used to collapse a complex network down into a
single efficient bridged node, increasing overall bandwidth and throughput.
In the figure below, the 10/100/1000BASE-T ports are providing
1000
Mbps connectivity through layer 2 switches. In addition, the switch is
also connecting several servers at 1000 Mbps.
Figure 2-2 Network Aggregation Plan
2-3
N
ETWORK PLANNING
Remote Connections with Fiber Cable
Fiber optic technology allows for longer cabling than any other media type. A
1000BASE-SX (MMF) link can connect to a site up to 550 meters away, a
1000BASE-LX (SMF) link up to 5 km, and a 1000BASE-LH link up to
70
km. This allows a switch to serve as a collapsed backbone, providing
direct connectivity for a widespread LAN.
A 1000BASE-SX SFP transceiver can be used for a high-speed connection
between floors in the same building and a 1000BASE-LX SFP transceiver
can be used for core connections between buildings in a campus setting. And
for long-haul connections, a 1000BASE-LH SFP transceiver can be used to
reach another site up to 70 kilometers away.
The figure below illustrates the switch connecting multiple segments with
fiber cable.
2-4
Figure 2-3 Remote Connections with Fiber Cable
A
PPLICATION EXAMPLES
10GBASE Fiber Connections
The switch's 10GBASE modules provide a cost-effective way to build a
10
Gbps Ethernet network. A 10GBASE-SR (MMF) link can connect to a
device up to 300
10GBASE-ER (SMF) link up to 40
scale their Ethernet networks from 10, 100, or 1000
A 10GBASE-SR XFP transceiver can be used for a high-speed connection
between floors in the same building and a 10GBASE-LR XFP transceiver
can be used for core connections between buildings in a campus setting. And
for long-haul connections, a 10GBASE-ER XFP transceiver can be used to
reach another site up to 40
The figure below illustrates a connection between two sites and to their
remote switches.
meters away, a 10GBASE-LR (SMF) link up to 10 km, and a
km. This allows network managers to
Mbps to 10 Gbps.
km away.
Figure 2-4 10GBASE Fiber Connections
2-5
N
ETWORK PLANNING
Making VLAN Connections
This switch supports VLANs which can be used to organize any group of
network nodes into separate broadcast domains. VLANs confine broadcast
traffic to the originating group, and can eliminate broadcast storms in large
networks. This provides a more secure and cleaner network environment.
VLANs can be based on untagged port groups, or traffic can be explicitly
tagged to identify the VLAN group to which it belongs. Untagged VLANs
can be used for small networks attached to a single switch. However, tagged
VLANs should be used for larger networks, and all the VLANs assigned to
the inter-switch links.
The switch also support multiple spanning trees which allow VLANs groups
to maintain a more stable path between all VLAN members. This can reduce
the overall amount of protocol traffic crossing the network, and provide a
shorter reconfiguration time if any link in the spanning tree fails.
Figure 2-5 Making VLAN Connections
Note: When connecting to a switch that does not support IEEE 802.1Q VLAN
tags, use untagged ports.
2-6
A
PPLICATION NOTES
Application Notes
1. Full-duplex operation only applies to point-to-point access (such as
when a switch is attached to a workstation, server or another switch).
When the switch is connected to a hub, both devices must operate in
half-duplex mode.
2. Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure jamming
signals may degrade overall performance for the segment attached to the
hub.
3. As a general rule the length of fiber optic cable for a single switched link
should not exceed:
•1000BASE-SX: 550 m (1805 ft) for multimode fiber.
•1000BASE-LX: 5 km (3.1 miles) for single-mode fiber.
•1000BASE-LH: 70 km (43 miles) for single-mode fiber.
•10GBASE-SR: 300 m (984 ft) for multimode fiber.
•10GBASE-LR: 10 km (6.2 miles) for single-mode fiber.
•10GBASE-ER: 40 km (24.9 miles) for single-mode fiber.
However, power budget constraints must also be considered when
calculating the maximum cable length for your specific environment.
2-7
N
ETWORK PLANNING
2-8
C
HAPTER
I
NSTALLING THE
S
WITCH
Selecting a Site
TigerSwitch units can be mounted in a standard 19-inch equipment rack or
on a flat surface. Be sure to follow the guidelines below when choosing a
location.
• The site should:
- be at the center of all the devices you want to link and near a power
outlet.
- be able to maintain its temperature within 0 to 50 °C (32 to 122 °F) and
its humidity within 5% to 95%, non-condensing
- provide adequate space (approximately five centimeters or two inches)
on all sides for proper air flow
- be accessible for installing, cabling and maintaining the devices
- allow the status LEDs to be clearly visible
3
• 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.
• Make sure that the unit is connected to a separate grounded power outlet
that provides 100 to 240 VAC, 50 to 60 Hz, is within 2.44 m (8
each device and is powered from an independent circuit breaker. As with
any equipment, using a filter or surge suppressor is recommended.
feet) of
3-1
I
NSTALLING THE SWITCH
Ethernet Cabling
To ensure proper operation when installing the switch into a network,
make sure that the current cables are suitable for 10BASE-T,
100BASE-TX or 1000BASE-T operation. Check the following criteria
against the current installation of your network:
• Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP)
cables with RJ-45 connectors; Category 3 or better for 10BASE-T,
Category 5 or better for 100BASE-TX, and Category 5, 5e or 6 for
1000BASE-T.
• Protection from radio frequency interference emissions
• Electrical surge suppression
• Separation of electrical wires (switch related or other) and
electromagnetic fields from data based network wiring
• Safe connections with no damaged cables, connectors or shields
RJ-45 Connector
3-2
Figure 3-1 RJ-45 Connections
E
QUIPMENT CHECKLIST
Equipment Checklist
After unpacking the TigerSwitch, check the contents to be sure you have
received all the components. Then, before beginning the installation, be
sure you have all other necessary installation equipment.
Package Contents
• TigerSwitch 1000, SMC8748L2
• Four adhesive foot pads
• Bracket Mounting Kit containing two brackets and eight screws for
attaching the brackets to the switch
•Power Cord
• RS-232 console cable
• This Installation Guide
• Installation and Management Guide CD
• SMC Warranty Registration Card—be sure to complete and return to
SMC
Optional Rack-Mounting Equipment
If you plan to rack-mount the switch, be sure to have the following
equipment available:
• Four mounting screws for each device you plan to install in a rack—these
are not included
• A screwdriver (Phillips or flathead, depending on the type of screws used)
3-3
I
NSTALLING THE SWITCH
Mounting
This switch can be mounted in a standard 19-inch equipment rack or on a
desktop or shelf. Mounting instructions for each type of site follow.
Rack Mounting
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. (
• Mechanical Loading: Do not place any equipment on top of a
rack-mounted unit.
• 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.
See page C-2.)
3-4
M
OUNTING
To rack-mount devices:
1. Attach the brackets to the device using the screws provided in the
Bracket Mounting Kit.
Figure 3-2 Attaching the Brackets
2. Mount the device in the rack, using four rack-mounting screws (not
provided).
Figure 3-3 Installing the Switch in a Rack
3-5
I
NSTALLING THE SWITCH
3. If installing a single switch only, turn to “Installing an Optional
Module into the Switch” at the end of this chapter.
4. If installing multiple switches, mount them in the rack, one below the
other, in any order.
5. If also installing RPUs, mount them in the rack below the other
devices.
Desktop or Shelf Mounting
1. Attach the four adhesive feet to the bottom of the first switch.
Figure 3-4 Attaching the Adhesive Feet
2. Set the device on a flat surface near an AC power source, making sure
there are at least two inches of space on all sides for proper air flow.
3. If installing a single switch only, go to “Installing an Optional Module
into the Switch” at the end of this chapter.
4. If installing multiple switches, attach four adhesive feet to each one.
Place each device squarely on top of the one below, in any order.
5. If also installing RPUs, place them close to the stack.
3-6
I
NSTALLING AN OPTIONAL
SFP T
Installing an Optional SFP Transceiver
Figure 3-5 Installing an SFP Transceiver into a Slot
The SFP slots support the following optional SFP transceivers:
• 1000BASE-SX
• 1000BASE-LX
• 1000BASE-LH
RANSCEIVER
To install an SFP transceiver, do the following:
1. Consider network and cabling requirements to select an appropriate
SFP transceiver type.
2. Insert the transceiver with the optical connector facing outward and
the slot connector facing down. Note that SFP transceivers are keyed
so they can only be installed in one orientation.
3. Slide the SFP transceiver into the slot until it clicks into place.
Note: SFP transceivers are hot-swappable. The switch does not need to
be powered off before installing or removing a transceiver.
However, always first disconnect the network cable before
removing a transceiver.
Note: SFP transceivers are not provided in the switch package.
3-7
I
NSTALLING THE SWITCH
Installing an Optional Module into the Switch
Figure 3-6 Installing an Optional Module
Caution: DO NOT install slide-in modules with the switch powered on.
Be sure you power off the switch before installing any module.
To install an optional module into the switch, do the following:
1. Disconnect power to the switch.
2. Remove the blank metal plate (or a previously installed module) from
the appropriate port by removing the two screws with a flat-head
screwdriver.
3. With the module still in the anti-static bag, touch the metal frame of
the switch to prevent damage caused by static electricity discharge.
Also, it is recommended to use an ESD wrist strap during installation.
4. Remove the module from the anti-static shielded bag.
5. Holding the module level, guide it into the carrier rails on each side
and gently push it all the way into the port, ensuring that it firmly
engages with the connector.
3-8
C
ONNECTING TO A POWER SOURCE
Connecting to a Power Source
To connect a switch to a power source:
1. Insert the power cable plug directly into the AC socket located at the
back of the switch.
Figure 3-7 Power Sockets
2. Plug the other end of the cable into a grounded, 3-pin, AC power
source.
Note: For International use, you may need to change the AC line
cord. You must use a line cord set that has been approved for
the socket type in your country.
3. Check the front-panel LEDs as the device is powered on to be sure
the PWR LED is lit. If not, check that the power cable is correctly
plugged in.
4. If you have purchased a Redundant Power Unit, connect it to the
switch and to an AC power source now, following the instructions
included with the package.
3-9
I
NSTALLING THE SWITCH
Connecting to the Console Port
The DB-9 serial port on the switch’s front panel is used to connect to the
switch for out-of-band console configuration. The command-line-driven
configuration program can be accessed from a terminal or a PC running a
terminal emulation program. The pin assignments used to connect to the
serial port are provided in the following table.
The serial port’s configuration requirements are as follows:
•Default Baud rate—9,600 bps
•Character Size—8 Characters
•Parity—None
•Stop bit—One
•Data bits—8
•Flow control—none
Null ModemPC’s 9-Pin
DTE Port
3-10
C
HAPTER
M
AKING
C
N
ETWORK
ONNECTIONS
Connecting Network Devices
The SMC8748L2 switch is designed to interconnect multiple segments
(or collision domains). It can be connected to network cards in PCs and
servers, as well as to hubs, switches or routers. It may also be connected to
remote devices using the optional SFP tranceivers or optional 10GBASE
module with XFP transceivers.
Twisted-Pair Devices
Each device requires an unshielded twisted pair (UTP) cable with RJ-45
connectors at both ends. Use Category 5, 5e or 6 cable for 1000BASE-T
connections, Category 5 or better for 100BASE-TX connections, and
Category 3 or better for 10BASE-T connections.
4
Cabling Guidelines
The RJ-45 ports on the switch support automatic MDI/MDI-X pinout
configuration, so you can use standard straight-through twisted-pair cables
to connect to any other network device (PCs, servers, switches, routers, or
hubs).
See Appendix B for further information on cabling.
Caution: Do not plug a phone jack connector into an RJ-45
port. This will damage the switch. Use only twisted-pair cables
with RJ-45 connectors that conform to FCC standards.
4-1
M
AKING NETWORK CONNECTIONS
Connecting to PCs, Servers, Hubs and Switches
1. Attach one end of a twisted-pair cable segment to the device’s RJ-45
connector.
Figure 4-1 Making Twisted-Pair Connections
2. If the device is a network card and the switch is in the wiring closet,
attach the other end of the cable segment to a modular wall outlet that
is connected to the wiring closet. (See
on page 4-3) Otherwise, attach the other end to an available port on
the switch.
“Network Wiring Connections”
Make sure each twisted pair cable does not exceed 100 meters (328 ft)
in length.
3. As each connection is made, the Link LED (on the switch)
corresponding to each port will light to indicate that the connection is
valid.
Note: Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure
jamming signals may degrade overall performance for the segment
attached to the hub.
4-2
T
WISTED-PAIR DEVICES
Network Wiring Connections
Today, the punch-down block is an integral part of many of the newer
equipment racks. It is actually part of the patch panel. Instructions for
making connections in the wiring closet with this type of equipment
follows.
1. Attach one end of a patch cable to an available port on the switch, and
the other end to the patch panel.
2. If not already in place, attach one end of a cable segment to the back
of the patch panel where the punch-down block is located, and the
other end to a modular wall outlet.
3. Label the cables to simplify future troubleshooting. See “Cable
Labeling and Connection Records” on page 4-9.
Figure 4-2 Network Wiring Connections
4-3
M
AKING NETWORK CONNECTIONS
Fiber Optic SFP and XFP Devices
An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX, or
1000BASE-LH) or an optional 10-Gigabit Ethernet module with XFP
transceiver (10GBASE-SR, 10GBASE-LR, or 10GBASE-ER) can be used
for a backbone connection between switches, or for connecting to a
high-speed server.
Each single-mode fiber port requires 9/125 micron single-mode fiber
optic cable with an LC connector at both ends. Each multimode fiber optic
port requires 50/125 or 62.5/125 micron multimode fiber optic cabling
with an LC connector at both ends.
Warning: This switch uses lasers to transmit signals over fiber optic
cable. The lasers are compliant with the requirements of a
Class 1 Laser Product and are inherently eye safe in normal
operation. However, you should never look directly at a
transmit port when it is powered on.
Note: When selecting a fiber SFP device, considering safety, please make
sure that it can function at a temperature that is not less than the
recommended maximum operational temperature of the product.
You must also use an approved Laser Class 1 SFP transceiver.
Hinweis: Bei der Wahl eines Glasfasertransceivers muß für die
Beurteilung der Gesamtsicherheit beachtet werden, das die
maximale Umgebungstemperatur des Transceivers für den
Betrieb nicht niedriger ist als die für dieses Produkts. Der
Glasfasertransceiver muß auch ein überprüftes Gerät der Laser
Klasse 1 sein.
1. Remove and keep the LC port’s rubber plug. When not connected to a
fiber cable, the rubber plug should be replaced to protect the optics.
4-4
F
IBER OPTIC
2. Check that the fiber terminators are clean. You can clean the cable
plugs by wiping them gently with a clean tissue or cotton ball
moistened with a little ethanol. Dirty fiber terminators on fiber optic
cables will impair the quality of the light transmitted through the cable
and lead to degraded performance on the port.
3. Connect one end of the cable to the LC port on the switch and the
other end to the LC port on the other device. Since LC connectors are
keyed, the cable can be attached in only one orientation.
SFP
AND
XFP D
EVICES
Figure 4-3 Making Fiber Port Connections
4. As a connection is made, check the Link LED on the switch
corresponding to the port to be sure that the connection is valid.
The 1000BASE-SX, 1000BASE-LX, 1000BASE-LH fiber optic ports
operate at 1 Gbps, full duplex, with auto-negotiation of flow control. The
maximum length for fiber optic cable operating at Gigabit speed will
depend on the fiber type as listed under “10 Gbps Ethernet Collision
Domain” on page 4-7.
4-5
M
AKING NETWORK CONNECTIONS
The optional 10GBASE module operates at 10 Gbps full duplex. The
maximum length for fiber optic cable operating at 10 Gbps speed will
depend on the fiber type as listed under “10 Gbps Ethernet Collision
Domain” on page 4-7
Connectivity Rules
When adding hubs (repeaters) to your network, please follow the
connectivity rules listed in the manuals for these products. However, note
that because switches break up the path for connected devices into
separate collision domains, you should not include the switch or connected
cabling in your calculations for cascade length involving other devices.
1000BASE-T Cable Requirements
All Category 5 UTP cables that are used for 100BASE-TX connections
should also work for 1000BASE-T, providing that all four wire pairs are
connected. However, it is recommended that for all critical connections, or
any new cable installations, Category 5e (enhanced Category 5) or
Category 6 cable should be used. The Category 5e and 6 specifications
include test parameters that are only recommendations for Category 5.
Therefore, the first step in preparing existing Category 5 cabling for
running 1000BASE-T is a simple test of the cable installation to be sure
that it complies with the IEEE 802.3-2002 standards.
4-6
10 Gbps Ethernet Collision Domain
Table 4-1 Maximum 10GBASE-SR 10 Gigabit Ethernet Cable Length
Fiber SizeFiber
62.5/125 micron
single-mode fiber
62.5/125 micron
single-mode fiber
50/125 micron
single-mode fiber
50/125 micron
single-mode fiber
50/125 micron
single-mode fiber
Table 4-2 Maximum 10GBASE-ER 10 Gigabit Ethernet Cable Length
Fiber SizeFiber
9/125 micron
single-mode fiber
Table 4-3 Maximum 10GBASE-LR 10 Gigabit Ethernet Cable Length
Fiber SizeFiber
9/125 micron
single-mode fiber
Bandwidth
160 MHz/km2-26 m
200 MHz/km2-33 m
400 MHz/km2-66 m
500 MHz/km2-82 m
2000 MHz/km2-300 m
Bandwidth
N/A40 km
Bandwidth
N/A10 km (6.2 miles)LC
C
ONNECTIVITY RULES
Maximum Cable
Length
(6.56-85.3 ft.)
(6.56-108.26 ft.)
(6.56-216.54 ft.)
(6.56-269 ft.)
(6.56-984.25 ft.)
Maximum Cable
Length
(24.85 miles)
Maximum Cable
Length
Connector
LC
LC
LC
LC
LC
Connector
LC
Connector
1000 Mbps Gigabit Ethernet Collision Domain
Table 4-4 Maximum 1000BASE-T Gigabit Ethernet Cable Length
Cable TypeMaximum Cable
Length
Category 5, 5e, or 6 100-ohm UTP or STP100 m (328 ft)RJ-45
Connector
4-7
M
AKING NETWORK CONNECTIONS
Table 4-5 Maximum 1000BASE-SX Gigabit Ethernet Cable Lengths
Fiber SizeFiber
62.5/125 micron
multimode fiber
50/125 micron
multimode fiber
Table 4-6 Maximum 1000BASE-LX Gigabit Ethernet Cable Length
Fiber SizeFiber
9/125 micron
single-mode fiber
Table 4-7 Maximum 1000BASE-LH Gigabit Ethernet Cable Length
Fiber SizeFiber
9/125 micron
single-mode fiber
Bandwidth
160 MHz/km2-220 m (7-722 ft)LC
200 MHz/km2-275 m (7-902 ft)LC
400 MHz/km2-500 m (7-1641 ft)LC
500 MHz/km2-550 m (7-1805 ft)LC
Bandwidth
N/A2 m - 5 km
Bandwidth
N/A2 - 70 km
Maximum Cable
Length
Maximum Cable
Length
(7 ft - 3.2 miles)
Maximum Cable
Length
(7 - 43.5 miles)
100 Mbps Fast Ethernet Collision Domain
Connector
Connector
LC
Connector
LC
Table 4-8 Maximum Fast Ethernet Cable Length
TypeCable TypeMax. Cable Length Connector
100BASE-TX Category 5 or better
100-ohm UTP or STP
100 m (328 ft)RJ-45
10 Mbps Ethernet Collision Domain
Table 4-9 Maximum Ethernet Cable Length
TypeCable TypeMaximum LengthConnector
10BASE-TCategories 3, 4, 5 or
better 100-ohm UTP
100 m (328 ft)RJ-45
4-8
C
ABLE LABELING AND CONNECTION RECORDS
Cable Labeling and Connection Records
When planning a network installation, it is essential to label the opposing
ends of cables and to record where each cable is connected. Doing so will
enable you to easily locate inter-connected devices, isolate faults and
change your topology without need for unnecessary time consumption.
To best manage the physical implementations of your network, follow
these guidelines:
• Clearly label the opposing ends of each cable.
• Using your building’s floor plans, draw a map of the location of all
network-connected equipment. For each piece of equipment, identify the
devices to which it is connected.
• Note the length of each cable and the maximum cable length supported
by the switch ports.
• For ease of understanding, use a location-based key when assigning
prefixes to your cable labeling.
• Use sequential numbers for cables that originate from the same
equipment.
• Differentiate between racks by naming accordingly.
• Label each separate piece of equipment.
• Display a copy of your equipment map, including keys to all
abbreviations at each equipment rack.
4-9
M
AKING NETWORK CONNECTIONS
4-10
A
PPENDIX
T
ROUBLESHOOTING
Diagnosing Switch Indicators
Table A-1 Troubleshooting Chart
SymptomAction
PWR LED is Off
PWR LED is Amber • Internal power supply has failed.
Diag LED is
Flashing Amber
Link LED is Off• Verify that the switch and attached device are powered on.
• Check connections between the switch, the power cord and
the wall outlet.
•Contact your dealer for assistance.
• Contact your local dealer for assistance.
• Power cycle the switch to try and clear the condition
• If the condition does not clear, contact your dealer for
assistance
• Be sure the cable is plugged into both the switch and
corresponding device.
• If the switch is installed in a rack, check the connections to the
punch-down block and patch panel.
• Verify that the proper cable type is used and its length does not
exceed specified limits.
• Check the adapter on the attached device and cable
connections for possible defects. Replace the defective
adapter or cable if necessary.
A
A-1
T
ROUBLESHOOTING
Diagnosing Power Problems with the LEDs
The Power and RPU LEDs work in combination to indicate power status
as follows.
Table A-2 Power/RPU LEDs
Power LED RPU LED Status
GreenGreenInternal power functioning normally; RPU is present.
GreenAmberInternal power functioning normally; RPU plugged in but
faulty.
GreenOffInternal power functioning normally; RPU not plugged in.
AmberGreenInternal power faulty; RPU delivering power.
OffOffBoth internal power and RPU unplugged or not functioning.
Power and Cooling Problems
If the power indicator does not turn on when the power cord is plugged in,
you may have a problem with the power outlet, power cord, or internal
power supply. However, if the unit powers off after running for a while,
check for loose power connections, power losses or surges at the power
outlet. If you still cannot isolate the problem, the internal power supply
may be defective.
Installation
Verify that all system components have been properly installed. If one or
more components appear to be malfunctioning (such as the power cord or
network cabling), test them in an alternate environment where you are sure
that all the other components are functioning properly.
A-2
IN-B
In-Band Access
You can access the management agent in the switch from anywhere within
the attached network using Telnet, a web browser, or other network
management software tools. However, you must first configure the switch
with a valid IP address, subnet mask, and default gateway. If you have
trouble establishing a link to the management agent, check to see if you
have a valid network connection. Then verify that you entered the correct
IP address. Also, be sure the port through which you are connecting to the
switch has not been disabled. If it has not been disabled, then check the
network cabling that runs between your remote location and the switch.
Note: The management agent accepts up to four simultaneous Telnet
sessions. If the maximum number of sessions already exists, an
additional Telnet connection will not be able to log into the
system.
AND ACCESS
A-3
T
ROUBLESHOOTING
A-4
A
PPENDIX
C
ABLES
Twisted-Pair Cable and Pin Assignments
For 10/100BASE-TX connections, a twisted-pair cable must have two
pairs of wires. For 1000BASE-T connections the twisted-pair cable must
have four pairs of wires. Each wire pair is identified by two different colors.
For example, one wire might be green and the other, green 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.
Caution: DO NOT plug a phone jack connector into any RJ-45 port.
This will damage the switch. Use only twisted-pair cables with
RJ-45 connectors that conform with FCC standards.
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.
B
8
1
Figure B-1 RJ-45 Connector Pin Numbers
8
1
B-1
C
ABLES
10BASE-T/100BASE-TX Pin Assignments
Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for
RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps
connections, or 100-ohm Category 5 or better cable for 100 Mbps
connections. Also be sure that the length of any twisted-pair connection
does not exceed 100 meters (328 feet).
The RJ-45 ports on the switch base unit 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. In straight-through cable,
pins 1, 2, 3, and 6, at one end of the cable, are connected straight through
to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45
port on this switch, you can use either straight-through or crossover cable.
Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts
PinMDI Signal NameMDI-X Signal Name
1Transmit Data (TD+)Receive Data (RD+)
2Transmit Data (TD-)Receive Data (RD-)
3
6
4,5,7,8
Note: The “+” and “-” signs represent the polarity of the wires that
Receive Data (RD+)Transmit Data (TD+)
Receive Data (RD-)Transmit Data (TD-)
Not usedNot used
make up each wire pair.
B-2
T
WISTED-PAIR CABLE AND PIN ASSIGNMENTS
Straight-Through Wiring
If the twisted-pair cable is to join two ports and only one of the ports has
an internal crossover (MDI-X), the two pairs of wires must be
straight-through. (When auto-negotiation is enabled for any RJ-45 port on
this switch, you can use either straight-through or crossover cable to
connect to any device type.)
You must connect all four wire pairs as shown in the following diagram to
support Gigabit Ethernet connections.
EIA/TIA 568B RJ-45 Wiring Standard
10/100BASE-TX Straight-through Cable
White/Orange Stripe
Orange
End A
1
2
3
4
5
6
7
8
White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe
Brown
1
2
3
4
5
6
7
8
End B
Figure B-2 Straight-through Wiring
B-3
C
ABLES
Crossover Wiring
If the twisted-pair cable is to join two ports and either both ports are
labeled with an “X” (indicating MDI-X) or neither port is labeled with an
“X” (which indicates MDI), a crossover must be implemented in the
wiring. (When auto-negotiation is enabled for any RJ-45 port on this
switch, you can use either straight-through or crossover cable to connect
to any device type.)
You must connect all four wire pairs as shown in the following diagram to
support Gigabit Ethernet connections.
EIA/TIA 568B RJ-45 WiringStandard
10/100BASE-TX Crossover Cable
White/Orange Stripe
Orange
End A
1
2
3
4
5
6
7
8
White/Green Stripe
Blue
White/Blue Stripe
Green
White/Brown Stripe
Brown
1
2
3
4
5
6
7
8
End B
B-4
Figure B-3 Crossover Wiring
T
WISTED-PAIR CABLE AND PIN ASSIGNMENTS
1000BASE-T Pin Assignments
All 1000BASE-T ports support automatic MDI/MDI-X operation, so you
can use straight-through cables for all network connections to PCs or
servers, or to other switches or hubs.
The table below shows the 1000BASE-T MDI and MDI-X port pinouts.
These ports require that all four pairs of wires be connected. Note that for
1000BASE-T operation, all four pairs of wires are used for both transmit
and receive.
Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP) or
shielded twisted-pair (STP) cable for 1000BASE-T connections. Also be
sure that the length of any twisted-pair connection does not exceed 100
meters (328 feet).
Table B-2 1000BASE-T MDI and MDI-X Port Pinouts
PinMDI Signal NameMDI-X Signal Name
1Bi-directional Data One Plus (BI_D1+)Bi-directional Data Two Plus (BI_D2+)
2Bi-directional Data One Minus (BI_D1-)Bi-directional Data Two Minus (BI_D2-)
3Bi-directional Data Two Plus (BI_D2+)Bi-directional Data One Plus (BI_D1+)
4Bi-directional Data Three Plus (BI_D3+)Bi-directional Data Four Plus (BI_D4+)
5Bi-directional Data Three Minus (BI_D3-)Bi-directional Data Four Minus (BI_D4-)
6Bi-directional Data Two Minus (BI_D2-)Bi-directional Data One Minus (BI_D1-)
7Bi-directional Data Four Plus (BI_D4+)Bi-directional Data Three Plus (BI_D3+)
8Bi-directional Data Four Minus (BI_D4-)Bi-directional Data Three Minus (BI_D3-)
Cable Testing for Existing Category 5 Cable
Installed Category 5 cabling must pass tests for Attenuation, Near-End
Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing
information is specified in the ANSI/TIA/EIA-TSB-67 standard.
Additionally, cables must also pass test parameters for Return Loss and
Equal-Level Far-End Crosstalk (ELFEXT). These tests are specified in the
ANSI/TIA/EIA-TSB-95 Bulletin, “The Additional Transmission
Performance Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”
B-5
C
ABLES
Note that when testing your cable installation, be sure to include all patch
cables between switches and end devices.
Adjusting Existing Category 5 Cabling to Run 1000BASE-T
If your existing Category 5 installation does not meet one of the test
parameters for 1000BASE-T, there are basically three measures that can be
applied to try and correct the problem:
1. Replace any Category 5 patch cables with high-performance Category
5e or Category 6 cables.
2. Reduce the number of connectors used in the link.
3. Reconnect some of the connectors in the link.
Fiber Standards
The current TIA (Telecommunications Industry Association) 568-A
specification on optical fiber cabling consists of one recognized cable type
for horizontal subsystems and two cable types for backbone subsystems.
Horizontal 62.5/125 micron multimode (two fibers per outlet).
Backbone 62.5/125 micron multimode or single-mode.
TIA 568-B will allow the use of 50/125 micron multimode optical fiber in
both the horizontal and backbone in addition to the types listed above. All
optical fiber components and installation practices must meet applicable
building and safety codes.
B-6
A
PPENDIX
S
PECIFICATIONS
Physical Characteristics
Ports
48 10/100/1000BASE-T, with auto-negotiation
4 Combination Ports (RJ-45/SFP)
Media Slots
2 slots for optional 10GBASE modules that support XFP transceivers
Network Interface
Ports 1-48: RJ-45 connector, auto MDI/X
10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better)
100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better)
1000BASE-T: RJ-45 (100-ohm, UTP or STP cable; Category 5, 5e or 6)
Buffer Architecture
1.5 Mbyte
C
Aggregate Bandwidth
136 Gbps
Switching Database
8K MAC address entries
LEDs
System: PWR (Power Supply), Diag (Diagnostic),
RPU (Redundant Power Unit), M1 (Module 1), M2 (Module 2)
Port: Link/Act (Link/Activity)
Weight
5.05 kg (11.13 lbs.)
C-1
S
PECIFICATIONS
Size
44.0 x 41.5 x 4.4 cm (17.4 x 16.4 x 1.8 in.)
Temp er at ur e
Operating: 0 °C to 50 °C (32 °F to 122 °F)
Storage: -40°C to 70°C (-40°F to 158°F)
Humidity
Operating: 5% to 95% (non-condensing)
AC Input
100 to 240 V, 50-60 Hz, 2A
Power Supply
Internal, auto-ranging transformer: 100 to 240 VAC, 50 to 60 Hz, 2A
External, supports a 14-pin connection for a redundant power supply
Power Consumption
105 Watts maximum
Maximum Current
1.6 A @ 110 VAC
0.6 A @ 230 VAC
Switch Features
Forwarding Mode
Store-and-forward
Throughput
Wire speed
Flow Control
Full Duplex: IEEE 802.3-2002
Half Duplex: Back pressure
C-2
Management Features
In-Band Management
Web, Telnet, SSH, or SNMP manager
Out-of-Band Management
RS-232 DB-9 console port
Software Loading
TFTP in-band, or XModem out-of-band
Standards
IEEE 802.3-2002
Ethernet, Fast Ethernet, Gigabit Ethernet
Full-duplex flow control
IEEE 802.3ae 10-Gigabit Ethernet
IEEE 802.1D Spanning Tree Protocol
IEEE 802.1w Rapid Spanning Tree Protocol
ISO/IEC 8802-3
M
ANAGEMENT FEATURES
Compliances
CE Mark
Emissions
FCC Class A
Industry Canada Class A
EN55022 (CISPR 22) Class A
EN 61000-3-2/3
VCCI Class A
C-Tick - AS/NZS 3548 (1995) Class A
Die Schalter konnen in ein Standard-19-Zoll-Ausrustungsgestell oder auf
eine flache Ebene montiert werden.
Zum Auswahlen eines Standortes beachten Sie bitte die nachstehenden
Richtlinien.
• Die Site sollte:
- sich in der Mitte aller anzuschliesenden Gerate sowie in der Nahe einer
Netzsteckdose befinden;
- imstande sein, eine Temperatur zwischen 0 und 50 °C (32 und 122 °F)
und eine Feuchtigkeit innerhalb von 5% bis 95% (nichtkondensierend)
beizubehalten;
- in einem genugend weiten Abstand (ungefahr 5 cm oder zwei Zoll) von
allen Seiten fur eine ausreichende Beluftung aufgestellt werden;
- fur das Installieren, die Kabelverlegung und fur Wartungen und
Reparaturen leicht zuganglich sein;
D
- die LED-Statusanzeigedioden mussen stets klar und leicht sichtbar
sein.
• Sicherstellen, dass das verdrehte Kabel stets weg von anderen
Stromkabeln, Neonleuchteinrihtungen und anderen Quellen von
moglichen elektrischen Storungen verlegt wird, wie z. B. von Radios und
Transmittern.
D-1
G
ERMAN INSTRUCTIONS
• Sicherstellen, dass das Gerat an eine separate Stromquelle mit
Erdanschlus mit einer Netzspannung von 100 bis 240 V AC
(Wechselstromspannung), 50 bis 60 Hz, und innerhalb in einem Abstand
von 2,44 m (8 Fus) zu jedem Gerat installiert wird und on einem
separaten Trennschalter bzw. Leistungsschalter mit Strom versorgt wird.
Fur alle Gerate wird empfohlen, einen Filter oder einen
Montage (Rack Mounting Instructions - German)
SMC8748L2 Switch-Einheiten können an ein standardmäßiges 19-Zoll
Einrichtungsrack, einen Arbeitstisch oder ein Regal montiert werden.
Folgend finden Sie die Montageanweisungen für jeden Positionstyp.
Rack-Montage
Beachten Sie die folgenden Faktoren, bevor Sie die Rack-Montage
beginnen:
• Temperatur: Da die Temperatur innerhalb einer Rackeinheit höher als die
Raumumgebungstemperatur sein kann, stellen Sie bitte sicher, dass die
Rackumgebungstemperatur innerhalb des angegebenen
Betriebstemperaturbereichs liegt. (Siehe "Temperatur" auf Seite C-2.)
• Mechanische Last: Stellen Sie kein Gerät auf eine Rack-Montageeinheit.
• Stromüberlastung: Stellen Sie sicher, dass der Netzkreis der Rackeinheit
nicht überlastet wird.
• Erdung: Die Rack-Montageeinheit muss richtig geerdet werden.
Besondere Acht sollten Sie bei Verbindungen geben, die nicht direkt zum
Netz führen.
D-2
M
ONTAGE
So montieren Sie Geräte an ein Rack:
1. Befestigen Sie die Metallwinkel mit den im Metallwinkel-Montageset
erhältlichen Schrauben an dem Gerät.
2. Befestigen Sie das Gerät mit vier Rackmontageschrauben (nicht
beigelegt) an dem Rack.
3. Wenn Sie nur einen Switch installieren, dann springen Sie bitte über zu
"Verbinden mit einer Stromquelle" auf Seite 3-8 am Ende dieses
Kapitels.
4. Wenn Sie mehrere Switches installieren möchten, dann montieren Sie
sie untereinander in einer beliebigen Reihenfolge.
(R
ACK MOUNTING INSTRUCTIONS
- G
ERMAN
)
D-3
G
ERMAN INSTRUCTIONS
D-4
G
LOSSARY
10BASE-T
IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of
Category 3, 4, or 5 UTP cable.
100BASE-TX
IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of
Category 5 UTP cable.
1000BASE-LH
Specification for long-haul Gigabit Ethernet over two strands of 9/125
micron core fiber cable.
1000BASE-LX
IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/
125, 62.5/125 or 9/125 micron core fiber cable.
1000BASE-SX
IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/
125 or 62.5/125 micron core fiber cable.
1000BASE-T
IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category
5, 5e or 6 twisted-pair cable (using all four wire pairs).
10GBASE
IEEE 802.3ae specification for 10-Gigabit Ethernet over two strands of
50/125, 62.5/125 or 9/125 micron core fiber cable.
Glossary-1
Auto-Negotiation
Signalling method allowing each node to select its optimum operational
mode (e.g., 10, 100 or 1000 Mbps, and half or full duplex) based on the
capabilities of the node to which it is connected.
Bandwidth
The difference between the highest and lowest frequencies available for
network signals. Also synonymous with wire speed, the actual speed of the
data transmission along the cable.
Collision
A condition in which packets transmitted over the cable interfere
other. Their interference makes both signals unintelligible.
Collision Domain
Single CSMA/CD LAN segment.
CSMA/CD
CSMA/CD (Carrier Sense Multiple Access/Collision Detect) is the
communication method employed by Ethernet, Fast Ethernet, and Gigabit
Ethernet.
with each
End Station
A workstation, server, or other device that does not forward traffic.
Ethernet
A network communication system developed and standardized by DEC,
Intel, and Xerox, using baseband transmission, CSMA/CD access, logical
bus topology, and coaxial cable. The successor IEEE 802.3 standard
provides for integration into the OSI model and extends the physical layer
and media with repeaters and implementations that operate on fiber, thin
coax and twisted-pair cable.
Glossary-2
Fast Ethernet
A 100 Mbps network communication system based on Ethernet and the
CSMA/CD access method.
Full Duplex
Transmission method that allows two network devices to transmit and
receive concurrently, effectively doubling the bandwidth of that link.
Gigabit Ethernet
A 1000 Mbps network communication system based on Ethernet and the
CSMA/CD access method.
IEEE
Institute of Electrical and Electronic Engineers.
IEEE 802.3
Defines carrier sense multiple access with collision detection (CSMA/CD)
access method and physical layer specifications.
IEEE 802.3ab
Defines CSMA/CD access method and physical layer specifications for
1000BASE-T Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.)
IEEE 802.3ae
Defines the access method and physical layer specifications for 10GBASE
10-Gigabit Ethernet.
IEEE 802.3u
Defines CSMA/CD access method and physical layer specifications for
100BASE-TX Fast Ethernet. (Now incorporated in IEEE 802.3-2002.)
Glossary-3
IEEE 802.3x
Defines Ethernet frame start/stop requests and timers used for flow
control on full-duplex links. (Now incorporated in IEEE 802.3-2002.)
IEEE 802.3z
Defines CSMA/CD access method and physical layer specifications for
1000BASE Gigabit Ethernet. (Now incorporated in IEEE 802.3-2002.)
LAN Segment
Separate LAN or collision domain.
LED
Light emitting diode used for monitoring a device or network condition.
Local Area Network (LAN)
A group of interconnected computer and support devices.
Media Access Control (MAC)
A portion of the networking protocol that governs access to the
transmission medium, facilitating the exchange of data between network
nodes.
MIB
An acronym for Management Information Base. It is a set of database
objects that contains information about the device.
Modal Bandwidth
Bandwidth for multimode fiber is referred to as modal bandwidth because
it varies with the modal field (or core diameter) of the fiber. Modal
bandwidth is specified in units of MHz per km, which indicates the
amount of bandwidth supported by the fiber for a one km distance.
Glossary-4
Network Diameter
Wire distance between two end stations in the same collision domain.
Redundant Power Supply (RPS)
A backup power supply unit that automatically supplies power should the
primary power supply fail.
RJ-45 Connector
A connector for twisted-pair wiring.
Switched Ports
Ports that are on separate collision domains or LAN segments.
TIA
Telecommunications Industry Association
Transmission Control Protocol/Internet Protocol (TCP/IP)
Protocol suite that includes TCP as the primary transport protocol, and IP
as the network layer protocol.
UTP
Unshielded twisted-pair cable.
Virtual LAN (VLAN)
A Virtual LAN is a collection of network nodes that share the same
collision domain regardless of their physical location or connection point
in the network. A VLAN serves as a logical workgroup with no physical
barriers, allowing users to share information and resources as though
located on the same LAN.