Catalyst Switch Cable, Connector for Catalyst 6000

2006-12-10 15:34:00

Introduction

This document is a guide to cables and connectors for Catalyst 6500/6000, 5500/5000, and 4500/4000 series switching modules and Catalyst 2900/3500 XL, 2940, 2970, 2950/2955, 3550, and 3750 series fixed-configuration switches. AC power supplies, connectors, and cords for these switches are also covered.

Prerequisites

Requirements

You should identify the part or model number of your switch/supervisor, switching module, or power supply in order to use this document effectively. Do this by visual inspection, or issue the show module command where possible.

Components Used

This document is not restricted to specific software and hardware versions.

Conventions

Refer to Cisco Technical Tips Conventions for more information on document conventions.

Console and Aux Port Cables

Different Catalyst Supervisor Engines use either a rolled or a straight-through cable in order to connect a terminal or modem to the console port. Refer to these documents for information on how to connect a terminal or modem to the console port of Catalyst series switches:

Auxiliary (AUX) ports on Layer 3 (L3) switches or modules behave much the same way as AUX ports on routers and are used to connect modems. Refer to Modem-Router Connection Guide for information on how to connect a modem to an AUX port.

Which RJ-45 Ethernet Cable Do I Use?

A common question that concerns RJ-45 unshielded twisted pair (UTP) Ethernet cable concerns how to distinguish between rolled, straight-through, and crossover cables, and when to use them. Use the comparison guide found in the Types of RJ-45 Cabling section of Cabling Guide for Console and AUX Ports in order to see the difference between these cables.

Cables to Hubs, Switches, Routers, and Workstations

Crossover and straight-through cables are used in order to connect switch ports or interfaces to network devices. Consult this table in order to see when to use each of these cable types. Find the device in the left-hand column and match it up with another device in the top row. The intersection of these two devices gives you the cable type used to connect them together.

	Hub	Switch	Router	Workstation
Hub	Crossover	Crossover	Straight	Straight
Switch	Crossover	Crossover	Straight	Straight
Router	Straight	Straight	Crossover	Crossover
Workstation	Straight	Straight	Crossover	Crossover

Note: The ports on Catalyst switches that run Cisco IOS^® Software (Native) can be configured to act as Layer 2 (L2) or Layer 3 (L3) ports. When you connect the RJ-45 cable from a Layer 3 port, which acts as a router port, to other devices, use the previous table. In summary, the cables used do not change, regardless of whether the port is configured to be in Layer 2 (switch port) or Layer 3 (router port) mode.

Most Common Cable Connectors

These diagrams show some of the most common cable types and connectors used on Catalyst switches.

RJ-45	RJ-21 Telco

This is used in order to connect to 10/100 or 10/100/1000 Ethernet ports and 1000Base-T Gigabit Interface Converter (GBIC) or small form factor pluggable (SFP) GBIC ports. 10/100/1000 Ethernet ports must use four twisted-pair Category 5, 5e or 6 cables.	This is used in order to connect to 10/100BASE-TX RJ-21 telco interfaces. Use Category 5 UTP cables with male RJ-21.

MT-RJ Fiber-Optic	SC Fiber-Optic

This is used in order to connect to 100Base-FX fiber-optic ports. Use multimode fiber (MMF) cables with MT-RJ connectors.	This is used in order to connect to 100Base-FX, 1000Base-SX, Long Wavelength/Long Haul (LX/LH) and ZX fiber-optic ports or GBICs. Use MMF or single-mode fiber (SMF) fiber-optic cable.

LC Fiber-Optic	GigaStack

This is used in order to connect to SFP fiber-optic module ports.	This is used in order to connect to GigaStack GBIC ports. Cisco GigaStack technology uses proprietary GBICs and cables.

StackWise

This is used in order to connect to StackWise ports on the rear panel of Catalyst 3750 switches. Cisco StackWise technology uses proprietary connectors and cables.

GBIC and SFP Connectors

Many Catalyst switches, Supervisor Engines and switching modules have removable Gigabit Interface Converters (GBICs) or small form factor pluggable (SFP)-type connectors. These diagrams show some of the most common GBIC and SFP connectors used on Catalyst switches.

Note: A Catalyst 2950 switch is used for demonstration purposes.

1000Base-X	1000Base-T

This uses SC fiber-optic connector and MMF or SMF cable. Part numbers: WS-G5484 (1000Base-SX GBIC) WS-G5486 (1000Base-LX/LH GBIC) WS-G5487 (1000Base-ZX GBIC)	This uses RJ-45 connector and cable. Part number: WS-G5483 (1000Base-T GBIC)

WS-X3500-XL GigaStack GBIC	SFP Module

This uses Cisco Gigastack connector and cable. Part Number: WS-X3500-XL (GigaStack GBIC)	This uses LC fiber-optic connector or RJ-45 for 1000Base-T SFP. Part numbers: GLC-T (1000Base-T SFP) GLC-SX-MM (1000Base-SX SFP) GLC-LH-SM (1000Base-LX/LH SFP) GLC-ZX-SM (1000Base-ZX)

GBIC and SFP support depends on the platform and software version. Refer to these documents for GigabitEthernet system requirements, as well as GBIC system requirements, Coarse Wave Division Multiplexer (CWDM) GBIC, Gigastack GBIC, and SFP system requirements:

原文地址 http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af7.shtml

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