Replacing Hardware Components
Figure 84: Inser t the PC Card
1925
PCG 0
SFM 0
SFM 1
MCS 0
RE 0
Replacing a Routing Engine
The Routing Engines are hot-pluggable, as desc ribed in Field-Replaceable Units
(FRUs) on page 4. For a description of the effect of removing a Routing Engine,
seeHostModuleonpage22.ToreplaceaRoutingEngine,performthefollowing
procedures:
Removing a Routing Engine on page 165
Installing a Routing Engine on page 168
Removing a Routing Engine
To remove a Routing Engin e,fo llow this procedure (see Fi gure 85):
1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wris t and
connect the strap toone of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
“Preventing ElectrostaticDischarge Damage” on page 226.
3. Remove the rear componentcover by loosening the thumbscrew at each
corner of the cover and pulling it straight off the chas sis. For complete
instructions, see “Removingthe Rear Component Cover” on page 86.
4. If two host modules are installed, use one of the following two methods to
determine which is functioning as master:
Note which of the green host module MASTER LEDs is lit on the craft
interface.
Replacing Host Module Components 165