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Chapter 2
Hardware Component Overview
This chapter provides an overview of the hardware components on the M5 and M10
Internet ro
uters:
• 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
• FanTrayonpa
ge 19
• Cable Management System on page 20
Chassis
The router chassis is a rigid sheet metal structure that ho uses 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 an d 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