Cisco PRP-1= Spezifikationen PDF herunterladen (Seite 22)

OL-17436-01

Removing and Installing a PRP

Step 4 If you are replacing a PRP, disconnect any devices that are attached to the Ethernet, console, or auxiliary

ports. If you are removing a PRP for maintenance and will reinstall the same one, you can leave the

devices attached, provided that doing so will not strain the cables.

Step 5 Using a 3/16-inch flat-blade screwdriver, loosen the two captive screws on the ends of the PRP.

Step 6 Place your thumbs on the ends of each of the ejector levers and simultaneously pull them both away from

the PRP faceplate (in the direction shown in Figure 7a) to release the PRP from the upper card cage slot

and to dislodge the PRP edge connector from the backplane.

Step 7 Grasp the PRP faceplate handle with one hand and pull the PRP straight out of the slot, keeping your

other hand under the PRP to guide it. Keep the PRP edge connector parallel to the backplane.

Caution Avoid touching the PRP printed circuit board, components, or any edge connector pins.

Step 8 Place the removed PRP on an antistatic mat or foam. If you plan to return the PRP to the factory,

immediately place it in an antistatic bag to prevent ESD damage.

Installing a PRP

When you install a PRP, be sure to use the ejector levers, which help to ensure that the PRP is fully

inserted in the backplane connector. (See Figure 7.) When you push the ejector levers simultaneously

inward (toward the center of the PRP), the ejector levers push the PRP into the slot and ensure that the

PRP backplane connector is fully seated in the backplane.

Caution A PRP that is only partially connected to the backplane can halt the system.

To install a PRP, follow these steps:

Step 1 Turn off system power.

Step 2 Attach an ESD-preventive wrist strap and follow its instructions for use.

Step 3 Grasp the PRP faceplate handle with one hand and place your other hand under the carrier to support and

guide it into an upper card cage slot.

Caution Avoid touching the PRP printed circuit board, components, or any edge connector pins.

Step 4 Place the bus-connector edge of the PRP in the appropriate slot and align the notches along the edge of

the carrier with the grooves at the top and bottom of the slot.

Step 5 While keeping the PRP edge connector parallel to the backplane, carefully slide the carrier into the slot

until the PRP faceplate makes contact with the ejector levers, then stop.

Step 6 Using the thumb and forefinger of each hand to pinch each ejector lever, push both ejectors

simultaneously toward the center of the PRP faceplate until they are perpendicular to the PRP faceplate.

(See Figure 7b.)

Step 7 Using a 3/16-inch flat-blade screwdriver, tighten the captive screws on the ends of the PRP. The captive

screws prevent the PRP from becoming partially dislodged from the backplane and ensure proper EMI

shielding. (These captive screws must be tightened to meet EMI specifications.)

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