Internet Router Hardware Guide

Installing the Router without a Mechanical Lift
Figure 49: Reinstalling the Rear U pper Impeller Assembly
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Figure 50: Reinstalling the Rear U pper Impeller Assembly
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Reinstalling the Routing Engines
The router can have a Routing Engine in each of the slots labeled RE 0 and
RE 1 at the rear of the chassis , as shown in Figure 3.
NOTE: If two Routing Engines are installed, they must both be the same version.
To reinstall a Routing Engine, follow this procedure (see Figure 51):
1. A tt ach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one of the ESD points on the chassis. Make sure t he router
is attached to a proper earth ground. For more information about ESD, see
“Preventing Electrostatic Discharge Damage” on page 226.
Reinstalling Components into the Chassis 105