Juniper-networks J4350 Manual de usuario Pagina 165

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Replacing and Troubleshooting Hardware Components
Removing a PIM
The PIMs are installed in the front of the Servi c es Router. A PIM
weighs less th
an1lb(0.5kg).
CAUTION: Do not h ot-swap PIMs. Failure to power off the router before removing
or installing
aPIMmightresultindamagetothehardware.
To remove a PIM (see Figure 39):
1. Placeanelectrostaticbagorantistaticmatonaflat,stablesurfacetoreceive
the PIM.
2. Attach an electrostatic discharge (ESD) grounding stra p to your bare wrist and
connect the st
rap to the ESD point on the chassis, or to an outside ESD point if
the Services Router is disconnected from earth ground. For mo re information
about ESD, see “Preventing Electrostatic Discharge Damage” on page 205.
3. Press and release the power button to power off the router. Verify that the
POWER LED blinks and then turns off.
4. Label the cables c onne cted to the PIM so t hat you can later reconnect each
cable to the correct PIM.
5. Disconnect the cables from the PIM.
6. If necessary
, arrange the cables to prevent th em from dislodging or developing
stress points:
Secure each c
able so that it is not supporting its own weight as it hangs
to the floor.
Place excess cable out of the way in a neatly coiled loop.
Use fasteners to maintain the shape of cable loops.
7. Loosen the captive screws on each side of the PIM faceplate.
8. Grasp the ha
ndles on each side of the PIM faceplate, and slide the PIM out of
the router. Place it in the electrostatic bag or on the antistatic mat.
9. If you are no
treinstallingaPIMintotheemptied slot, install a blank PIM panel
over the slot to maintain proper airflow.
Replacing Hardware Components 145
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