Juniper Networks M5, M10 manual Hardware Component Overview, Chassis

Chapter 2

Hardware Component Overview

This chapter provides an overview of the hardware components on the M5 and M10 Internet routers:

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Chassis on page 5

Packet Forwarding Engine on page 8

Routing Engine on page 12

Craft Interface on page 14

Power Supplies on page 16

Fan Tray on page 19

Cable Management System on page 20

Chassis

The router chassis is a rigid sheet metal structure that houses the other hardware components. The chassis is 17.5 in. (44.5 cm) wide and 24 in. (61 cm) deep. The chassis height of 5.25 in. (13.3 cm) enables stacked installation of 14 M5 and M10 routers in a single floor-to-ceiling rack. For more information, see “Rack Requirements” on page 37.

The two mounting ears (one on each side) extend the chassis width to 19 in. (48.3 cm) and enable installation into either a front-mount or a center-mount rack.

Figure 1, Figure 2, and Figure 3 show front and rear views of the router chassis.

Hardware Component Overview 5