Cisco Systems WSC4500XF16SFP Instrukcja Użytkownika Pobierz pdf (Strona 64)

Chapter 1 Product Overview

System Architecture

1-40

Catalyst 4500 Series Switches Installation Guide

78-14409-08

System Architecture

This section describes the interaction between the various system components of

Catalyst 4500 series switches. A Catalyst 4503 only is shown in the examples.

Power Flow

Figure 1-21 shows power ingress and flow through the system.

Figure 1-21 Power Flow

Power enters the switch through the power supplies. Several types of power

supplies are available, depending on the power needs for your system and the

power type available on your site. All power supplies provide a 3.3 V circuit

(shown as a dash-dot line) to the components on the backplane and a 12 V circuit

(shown as a solid line) that is carried over the backplane to the fans, supervisor

engine, and switching modules. Power supplies that support PoE (1300 W AC,

Ingress to PS Ingress to PS

Backplane

PS1 PS2

Fan

tray

120919

Supervisor engine

Switching module

12 V

3.3 V

48 V

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 193 194

Brak uwag

Cisco Systems WSC4500XF16SFP Instrukcja Użytkownika Strona 64