Cisco Catalyst Express 520 Introduction

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User Guide for the Catalyst Express 520 Switches
OL-12761-02
Chapter 1 Introduction
Overview
Cisco Smart Business Communications System Network Example
The Catalyst Express 520 switches are the recommended companion switches to
the Cisco Unified Communications 500 Series. These devices are part of the Cisco
Smart Business Communications System solution (Figure 1-1).
The Cisco Smart Business Communications System is a unified communications
solution for small businesses that provides voice, data, video, security, and
wireless capabilities while integrating with existing desktop applications such as
calendar, e-mail, and Customer Relationship Management (CRM).
Figure 1-1 Cisco Smart Business Communications System Solution
Catalyst Express Switch Network Example
Figure 1-2 is an example of how to use the different Catalyst Express switches to
enable communication between network users and to provide them access to
network resources.
Any of the Catalyst Express 520 switches can be Switches A, B, C, and D in this
network. To take full advantage of the different models of the Catalyst
Express 520 switch platform, use the one that is designed for the type of
connections that you require.
• Switches A and B: Use the Catalyst Express 520G-24TC-K9 model. It has
the most Gigabit Ethernet ports, and it is best suited to providing 1000-Mb/s
connections between switches and to servers. Multiple connections between
the switches ensure that users maintain network access if any of the switches
becomes overused or unavailable.
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Cisco 521
Wireless Express
Access Points
Catalyst Express 520 Switch
Cisco 526 Wireless Express
Mobility Controller
Fax
Cisco
Monitor
Director
Partner
Site
Teleworker
Site
Cisco 870 Series
Router
DSL/Cable
Modem
Internet
Cisco Unified
Communications 500 Series
Cisco
Configuration
Assistant/
Cisco Monitor
Manager
PSTN

Cisco Catalyst Express 520 Specifications

General

Brand	Cisco
Model	Catalyst Express 520
Category	Switch
Language	English