Juniper Networks M160 manual Reinstalling the FPCs, Reinstalling the Front Impeller Assembly

Installing the Router without a Mechanical Lift

Figure 45: Reinstalling the Front Impeller Assembly

Captive screw

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Reinstalling the FPCs

The FPCs install into the card cage at the front of the chassis, as shown in Figure 1.

NOTE: To help you work systematically, the following procedure directs you to reinstall FPCs starting at the left side of the card cage and working toward the right. You can install FPCs in any order, however.

Be sure there is a blank panel over every empty slot. The blank panels must be in place during router operation to guarantee adequate circulation of cooling air.

To reinstall the FPCs, follow this procedure (see Figure 46):

1.Attach 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 the router is attached to a proper earth ground. For more information about ESD, see “Preventing Electrostatic Discharge Damage” on page 226.

2.Locate the leftmost slot in the FPC card cage on the front of the chassis. It is directly below the offline button on the craft interface that is labeled FPC0. Locate the FPC that you labeled FPC0 during removal.

3.Verify that the ends of the ejector levers, which are located at each end of the FPC, are pushed outward, nearly perpendicular to the face of the FPC.

4.Grasp the front of the FPC with one hand and place the other hand under the FPC to support it.

CAUTION: When the FPC is out of the chassis, do not hold it by the ejector levers, bus bars, or edge connectors. They cannot support its weight.

Reinstalling Components into the Chassis 101