Cisco Catalyst 2900 Series Manual

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About This Guide
This section defines the audience and scope of this guide and briefly describes the
contents of each chapter. There are also descriptions of the icons and conventions
used to convey instructions and information.
Audience and Scope
This guide is for the technician installing the Catalyst 2900 series XL modules,
hereafter referred to as the 2900 series modules. We assume that you are familiar
with the concepts and terminology of Ethernet and local-area networking. This
guide provides the information you need to install the 2900 series modules and to
troubleshoot problems associated with their installation.
Note The 2900 series modules and their ports are managed through one of
the management interfaces of a Catalyst 2900 series switch. For
more information, see the Catalyst 2900 Series XL Installation and
Configuration Guide.

About This Guide
Document Organization
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Document Organization
This guide is organized into the following chapters:
Chapter 1, “Overview,” describes the modules and their key features. It contains
a physical description of the modules, a description of the networking standards
they support, and several examples of how they can be deployed in real networks.
Chapter 2, “Installation,” explains how to install the modules.
Chapter 3, “Troubleshooting,” describes how to identify and resolve common
module installation and cabling problems.
Appendix A, “Technical Specifications,” lists the physical and environmental
specifications of the modules and the regulatory agency approvals.
Appendix B, “Connectors and Cables,” describes the cables and connectors that
can connect to the 2900 series module ports.
Appendix C, “Translated Safety Warnings,” contains translations of the warnings
in this guide.
Notes, Cautions, and Warnings
Notes, cautions, and warnings use the following conventions and symbols:
Note Means reader take note. Notes contain helpful suggestions or
references to materials not contained in this manual.
Caution Means reader be careful. In this situation, you might do something
that could result in equipment damage or loss of data.

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About This Guide
Notes, Cautions, and Warnings
Warning This warning symbol means danger. You are in a situation that
could cause bodily injury. Before you work on any equipment, be
aware of the hazards involved with electrical circuitry and be
familiar with the standard practices for preventing accidents.
The warning symbol also means that you can see the warning in
multiple languages in “Translated Safety Warnings.”
Waarschuwing
Dit waarschuwingssymbool betekent gevaar. U verkeert in een
situatie die lichamelijk letsel kan veroorzaken. Voordat u aan
enige apparatuur gaat werken, dient u zich bewust te zijn van de
bij elektrische schakelingen betrokken risico's en dient u op de
hoogte te zijn van standaard maatregelen om ongelukken te
voorkomen. Het waarschuwingssymbool betekent ook dat u de
waarschuwing in meerdere talen in “Translated Safety
Warnings” kunt vinden.
Varoitus
Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi
johtaa ruumiinvammaan. Ennen kuin työskentelet minkään
laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä
vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista.
Varoitusmerkki tarkoittaa myös sitä, että varoitus esiintyy useilla
kielillä osassa “Translated Safety Warnings”.
Attention
Ce symbole d'avertissement indique un danger. Vous vous trouvez
dans une situation pouvant causer des blessures ou des
dommages corporels. Avant de travailler sur un équipement,
soyez conscient des dangers posés par les circuits électriques et
familiarisez-vous avec les procédures couramment utilisées
pour éviter les accidents. Le symbole d'avertissement signifie
également que cet avis se trouve traduit dans plusieurs langues
dans la section «Translated Safety Warnings».

About This Guide
Notes, Cautions, and Warnings
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Warnung
Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer
Situation, die zu einer Körperverletzung führen könnte. Bevor Sie
mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der
mit elektrischen Stromkreisen verbundenen Gefahren und der
Standardpraktiken zur Vermeidung von Unfällen bewußt. Das
Warnsymbol bedeutet auch, daß Sie die Warnung in
verschiedenen Sprachen unter “Translated Safety Warnings”
lesen können.
Avvertenza
Questo simbolo di avvertenza indica un pericolo. La situazione
potrebbe causare infortuni alle persone. Prima di lavorare su
qualsiasi apparecchiatura, occorre conoscere i pericoli relativi
ai circuiti elettrici ed essere al corrente delle pratiche standard
per la prevenzione di incidenti. Il simbolo di avvertenza indica
inoltre che l’avvertenza viene presentata in diverse lingue in
“Translated Safety Warnings”.
Advarsel
Dette varselsymbolet betyr fare. Du befinner deg i en situasjon
som kan føre til personskade. Før du utfører arbeid på utstyr, må
du vare oppmerksom på de faremomentene som elektriske
kretser innebærer, samt gjøre deg kjent med vanlig praksis når
det gjelder å unngå ulykker. Dette varselsymbolet betyr også at
du kan lese advarselen på flere språk i «Translated Safety
Warnings».
Aviso
Este símbolo de aviso indica perigo. Encontra-se numa situação
que lhe poderá causar danos físicos. Antes de começar a
trabalhar com qualquer equipamento, familiarize-se com os
perigos relacionados com circuitos eléctricos, e com quaisquer
práticas comuns que possam prevenir possíveis acidentes. Este
símbolo serve também para indicar que poderá ler este tipo de
aviso em várias línguas na secção: “Translated Safety
Warnings.”

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About This Guide
Cisco Connection Online
Cisco Connection Online
Cisco Connection Online (CCO) is Cisco Systems’ primary, real-time support
channel. Maintenance customers and partners can self-register on CCO to obtain
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Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and
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¡Atención!
Este símbolo de aviso significa peligro. Existe riesgo para su
integridad física. Antes de manipular cualquier equipo,
considerar los riesgos que entraña la corriente eléctrica y
familiarizarse con los procedimientos estándar de prevención de
accidentes. Este símbolo de aviso también significa que la
misma advertencia aparece en varios idiomas bajo el título
“Translated Safety Warnings.”
Varning!
Denna varningssymbol signalerar fara. Du befinner dig i en
situation som kan leda till personskada. Innan du utför arbete på
någon utrustning måste du vara medveten om farorna med
elkretsar och känna till vanligt förfarande för att förebygga
skador. Denna varningssymbol innebär också att du kan se
varningsmeddelandet på flera språk i “Translated Safety
Warnings.”

About This Guide
Documentation CD-ROM
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•WWW: http://www.cisco.com
•WWW: http://www-europe.cisco.com
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CHAPTER
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1
Overview
The Catalyst 2900 series XL modules add port density and high-performance
connectivity to a Catalyst 2900 series network. When installed in the appropriate
Catalyst 2900 series switch, these modules support a full range of cabling types,
port connectors, and 10, 100, and 1000 megabit-per-second (Mbps) transmission
speeds. All the Catalyst 2900 series modules autonegotiate the duplex mode of
each port to match that of the attached device. The Ethernet and Fast Ethernet
modules also autonegotiate the speed settings of each port.
This chapter contains the following topics:
•Key features of the modules
•Descriptions of the module LEDs
•Module cabling guidelines
•Examples of how the modules can be deployed
The Catalyst 2900 series modules support Inter-Switch Link (ISL) and IEEE
802.1Q trunking or multi-virtual LAN (VLAN) ports. The following table
describes the modules by model number.

Chapter 1 Overview
Key Features
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Note To use the ISL and IEEE 802.1Q trunking features, you must enable
them by using the Enterprise Edition Software. These features
cannot be used with the standard edition software.
Key Features
Table 1-1 describes the module features in detail.
Model Number1
1. If you insert these modules into a Catalyst 2912MF XL (WS-C2912MF-XL) or
Catalyst 2924M XL switch (WS-C2924M-XL-A or WS-C2924M-XL-EN), they support up to
8192 MAC addresses on each switch. If you insert any of these modules into a
Catalyst 2916M XL switch (WS-C2916M-XL), they support up to 2048 MAC addresses on each
switch.
Description
WS-X2914-XL-V 4 autosensing 10/100 UTP ports
WS-X2922-XL-V 2 100BaseFX ports
WS-X2932-XL 1 1000BaseT port
WS-X2924-XL-V 4 100BaseFX ports
WS-X2931-XL 1 1000BaseX port
Table 1-1 Catalyst 2900 Series XL Modules Features
Module Feature
WS-X2931-XL
(1 1000BaseX port)
WS-X2932-XL
(1 1000BaseT port)
•Hot-swappable
•Management through an SNMP management station, the Cisco IOS
command-line interface (CLI), or the web-based Visual Switch Manager
(VSM)
•Autonegotiation of duplex mode and flow control
•IEEE 802.1Q VLAN trunk support
•ISL trunk support
•Up to 8192 MAC addresses on each modular switch

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Chapter 1 Overview
Key Features
10BaseT/100BaseTX Module
The10BaseT/100BaseTX module, hereafter referred to as the 10/100 module, has
four switched 10/100 autosensing ports. The ports can autonegotiate the
transmission speed, or they can be set to 10 Mbps or 100 Mbps. Ports can also be
set to half duplex, full duplex, or autonegotiate. Figure 1-1 shows the 10/100
module.
•Support for Catalyst 2900 XL series Cisco IOS Release 12.0(5)XU or later
•Gigabit EtherChannel support
•Gigabit Interface Converter (GBIC) field-replaceable interface for
Catalyst 2931XL 1000BaseSX and 1000BaseLX/LH modules
•IEEE 802.3x, 802.3z, and 802.3ab compliant1
WS-X2914-XL-V
(4 10/100 UTP ports)
WS-X2922-XL-V
(2 100BaseFX ports)
WS-X2924-XL-V
(4 100BaseFX ports)
•All switched ports
•Autonegotiation of speed and duplex on the 10BaseT/100BaseTX module
•Per-port data rates of up to 200 Mbps in full-duplex mode
•Hot-swappable
•Management through an SNMP management station, the Cisco IOS
command-line interface (CLI), or the web-based Visual Switch Manager
(VSM)
•Fast EtherChannel support on all ports
•IEEE 802.1Q virtual LAN (VLAN) trunk support
•ISL trunk support
•Up to 8192 MAC addresses on each modular switch
•Support for Catalyst 2900 XL series Cisco IOS Release 11.2(8)SA4 or
later
1. Catalyst 2900 Series XL modules support the relevant IEEE 802.3x, IEEE 802.3z, or IEEE 802.3ab protocols appropriate for
that module.
Table 1-1 Catalyst 2900 Series XL Modules Features (continued)
Module Feature

Chapter 1 Overview
Key Features
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Figure 1-1 10/100 Module
The 10/100 module is compatible with the IEEE 802.3 10BaseT standard and the
IEEE 802.3u 100BaseT standard. The ports use RJ-45 connectors and Category 5
unshielded twisted-pair (UTP) copper cabling. For connector and schematic
information, see Appendix B, “Connectors and Cables.”
100BaseFX Modules
The 100BaseFX modules have either two or four switched 100BaseFX ports for
100-Mbps fiber-optic connectivity. The ports can run in half-duplex or full-duplex
modes. The module support the IEEE 802.3u 100BaseT standard and use
standard, duplex, SC connectors. Figure 1-2 and Figure 1-3 show the 100BaseFX
modules.
Figure 1-2 2-Port 100BaseFX Modules
15676
Tighten
Screws
To Activate
Four 10/100 ports
LEDs
1x
WS-X2914-XL-V
2x 3x 4x
10BaseT/100BaseTX
15677
1X
Two 100BaseFX ports
Tighten
Screws
To Activate
LEDs
12
100BaseFX
WS-X2922-XL-V

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Chapter 1 Overview
Key Features
Figure 1-3 4-Port100BaseFX Modules
For connector and schematic information, see “100BaseFX and 1000BaseX
Modules Cabling” in Appendix B, “Connectors and Cables.”
1000BaseX Module
The 1000BaseX module, shown in Figure 1-4, provides one switched 1000-Mbps,
full-duplex port that uses an SC fiber-optic connector. The port supports the IEEE
802.3z 1000BaseX standard. For connector and schematic information, see
“100BaseFX and 1000BaseX Modules Cabling” in Appendix B, “Connectors and
Cables.”
Figure 1-4 1000BaseX Module
15678
1X 2X
Four 100BaseFX ports
Tighten
Screws
To Activate
1234
100BaseFX
LEDs
WS-X2924-XL-V
17696
1X 2X
Slot for
1000BaseX port
Tighten
Screws
To Activate
WS-X2931-XL 1000BaseX
LED

Chapter 1 Overview
Key Features
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GBICs for the 1000BaseX Module
You can install either a short-wavelength (SX) or a long-wavelength/long-haul
(LX/LH) GBIC into the 1000BaseX module. Figure 1-5 shows a GBIC, and the
GBIC types are listed in Table 1-2.
Figure 1-5 GBIC
Note GBICs are sold separately from the 1000BaseX modules. Cisco
supports some approved third-party GBICs. For more information,
refer to the Catalyst GigaStack Gigabit Interface Converter
Hardware Installation Guide.
The GBICs fit through cutouts in the front of the module and plug into connectors
on the module.
Ta b l e 1- 2 G B I C Ty p e s
GBIC Part Number
Short wavelength (SX) WS-G5484=
Long wavelength/long-haul
(LX/LH)
WS-G5486=
11825
Receiver Transmitter

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Chapter 1 Overview
Key Features
Figure 1-6 1000BaseX Module with GBIC Installed
1000BaseT Module
The 1000BaseT module, shown in Figure 1-7, provides one switched 1000-Mbps,
full-duplex port over UTP copper cabling. The 1000BaseT module port supports
the IEEE 802.3ab standard.
Figure 1-7 1000BaseT Module
The “10/100 Module Cabling” section in the “Connectors and Cables” appendix
describes the RJ-45 connector.
15688
1X 2X
1000BaseX port
Tighten
Screws
To Activate
WS-X2931-XL
1000BaseX
LED
31117
1000BaseT port
Tighten
Screws
To Activate
WS-X2932-XL
LED
1000BaseT

Chapter 1 Overview
LEDs
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LEDs
An LED above or next to each port reflects the port status, as described in
Table 1-3.
Cabling Guidelines
This section describes the cabling guidelines you need to consider when planning
your network.
10/100 Module
The 10/100 ports require Category 5 UTP cabling. Attached devices must be
within 100 meters of the port and be either 10BaseT or 100BaseTX compatible.
Ta b l e 1- 3 Po r t L E D s
Color Meaning
Off No link.
Green Link present.
Flashing
green
Activity; port is transmitting or receiving data.
Alternating
green-amber
The port is experiencing error frames that can affect
connectivity. The port monitors errors such as excessive
collisions, cyclic redundancy check (CRC) errors, and alignment
errors.
Amber Port is not forwarding because
•It is initializing
•It was disabled by management or by an address violation
•It was blocked by Spanning Tree Protocol

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Chapter 1 Overview
Cabling Guidelines
The 10/100 ports are numbered 1X through 4X. The X indicates that the pins on
the port connector are internally crossed. If you are connecting to a device with
ports marked with an X, such as another switch or hub, use a crossover cable. If
you are connecting to devices with ports not marked with an X, such as a PC,
workstation, or server, use a straight-through cable.
For the connector pinouts and schematics, see the section “10/100 Module
Cabling” in Appendix B, “Connectors and Cables.”
Note Always observe the following general rules when connecting
devices: Use a straight-through cable to connect two ports when one
is designated with an X; use a crossover cable to connect two ports
when both are designated with an X.
100BaseFX Modules
The 100BaseFX ports use 50/125- or 62.5/125-micron multimode fiber-optic
cabling with duplex SC connectors. When set to run in full-duplex mode,
100BaseFX module ports can connect to compatible devices over distances of up
to 2 kilometers. For connector and schematic information, see Appendix B,
“Connectors and Cables.”
1000BaseX Modules
GBICs require the following fiber-optic cables with duplex SC connectors.
Table 1-4 GBIC Cable Specifications
GBIC Wavelength (nm) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz.km)
Cable Distance
Maximum
Shortwave (SX) 850 MMF 62.5
62.5
50.0
50.0
160
200
400
500
722 ft (220 m)
902 ft (275 m)
1640 ft (500 m)
1804 ft (550 m)

Chapter 1 Overview
Deployment Examples
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1000BaseT Module
The 1000BaseT port requires Category 5 UTP cabling. Attached devices must be
within 100 meters of the port and be 1000BaseT compatible.
For the connector pinouts and schematics, see the section “1000BaseT Module
Connectors” in Appendix B, “Connectors and Cables.”
Deployment Examples
This section describes five examples that use Catalyst 2900 series modules:
•Network with gigabit uplink
•Aggregating traffic from switched and shared networks
•Fast EtherChannel backbone
•Small to medium-sized LAN backbone
•High-performance client-server workgroups
Longwave/Long-haul
(LX/LH) (Patch cord
installation is required
for distances exceeding
300 m.)
1300 MMF 62.5
50.0
50.0
500
400
500
1804 ft (550 m)
1804 ft (550 m)
1804 ft (550 m)
Longwave/Long-haul
(LX/LH)
1300 SMF
(LX/LH)
9/10 32,810 ft (10 km)
Table 1-4 GBIC Cable Specifications (continued)
GBIC Wavelength (nm) Fiber Type
Core Size
(micron)
Modal
Bandwidth
(MHz.km)
Cable Distance
Maximum

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Chapter 1 Overview
Deployment Examples
Gigabit Uplink
Figure 1-8 shows a ultra-high-performance client-server workgroup. Catalyst
2900 series switches with 10/100, 1000BaseX, and 1000BaseT modules installed
connect the PCs and create a gigabit Ethernet or gigabit EtherChannel link to an
ultra-high-performance server supporting the Fast EtherChannel feature.
Figure 1-8 Gigabit Uplink Client-Server Workgroup
17698
Catalyst 2924M XL
switch with
1000BaseX or
1000BaseT
modules
Catalyst 2924M XL switch with
100BaseTX or
Fast EtherChannel
FastHub
400 series
Gigabit Ethernet
or Gigabit EtherChannel
100BaseTX
10BaseT/
100BaseTX
10BaseT/
100BaseTX
Catalyst 1900 or
Catalyst 2820 series
10/100 PCs
Ultra high-performance
servers
Catalyst 85xx, 6xxx,
5xxx, 4xxx
10/100 PCs
10BaseT
10BaseT PCs

Chapter 1 Overview
Deployment Examples
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Wiring Closet Aggregator
Figure 1-9 shows a Catalyst 2924M XL switch aggregating traffic from shared
10BaseT, switched 100BaseTX, and switched 10BaseT networks. A 100BaseFX
module passes the traffic to a backbone switch or router, and a 10/100 module
links the switch through a Fast EtherChannel link to a high-performance server.
Figure 1-9 Wiring Closet Aggregator
S6769
Catalyst 2924M XL
with 1000Base X or
1000Base T modules
100BaseTX
PCs
10BaseT
PCs
Catalyst 6500
High-performance
server
Catalyst 1900
FastHub 400
stack
Fast/Gigabit
EtherChannel
links
Fast/Gigabit
EtherChannel
links
Switched
100BaseTX links
Shared
100BaseTX links
Switched
10BaseT links

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Chapter 1 Overview
Deployment Examples
Fast or Gigabit EtherChannel Backbone
Figure 1-10 shows three Catalyst 2924M XL switches creating a high-speed
backbone for 10/100 PCs, Catalyst 2820 or Catalyst 1900 series switches, and
stacked FastHub 100BaseTX repeaters.
Figure 1-10 Fast EtherChannel Backbone
Backbone for Small- to Medium-Sized LAN
Figure 1-11 shows a Catalyst 2924M XL switch used as a corporate network
backbone of a small to medium-sized LAN, providing high-speed access to the
corporate servers using the Fast EtherChannel link.
This configuration provides a cost-effective migration path from legacy shared
10-Mbps networks to switched Fast Ethernet and gigabit Ethernet networks.
S6768
Catalyst 2924M XL
switches connected
via Fast/Gigabit
EtherChannel links
10/100
workstations
Catalyst 2820 or
Catalyst 1900 series
FastHub 400 series

Chapter 1 Overview
Deployment Examples
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Figure 1-11 Small- to Medium-Sized LAN Backbone
31670
Catalyst 2924M XL
Legacy
10BaseT Hub
FastHub
10/100 Hub
Gigabit Ethernet,
Fast EtherChannel
or 100BaseTX
Catalyst 1900 or
Catalyst 2900 XL
Switches
Workstations/Servers