Juniper JUNOS - NETWORK OPERATION GUIDE REV1

Understanding the Router Chassis ! 111
Chapter 13: Monitoring the Router Chassis
Figure 28 shows the front and rear of the M40 Internet router chassis and the
installed components.
Figure 28: M40 Router Chassis and Components
Front-rack mounting ear
Card cage with
FPCs with PICs
Craft interface display
Electrostatic
discharge point
Cable managment
system cover
Center rack-mounting ear
Routing Engine housing
Triple fan assembly
Cooling system exhaust
(upper impeller tray)
Front rack-mounting ear
Center rack-mounting ear
LS-120 drive
Power supplies
Electrostatic
discharge point
1268
Air filter (behind cover)
R
R
RearFront