Replacing the M7i Routing Engine

Removing an M7i Routing Engine

To remove a Routing Engine (see Figure 1):

1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
3. Press and hold the offline button on the faceplate of the Routing Engine until the green ONLINE LED turns off, which takes about 5 seconds.
4. Loosen the thumbscrews securing the Routing Engine, using a Phillips screwdriver if necessary.
5. Grasp the handle and slide the unit about halfway out of the chassis.

   Caution: Be careful to slide the Routing Engine straight out of the chassis. Damage can result if it gets lodged because of uneven movement.

6. Place one hand under the Routing Engine to support it, slide it completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.

Figure 1: Removing the Routing Engine

Installing the Routing Engine in a M7i Router

To install the Routing Engine (see Figure 2):

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. Verify that the router is attached to a proper earth ground.
2. Place one hand under the Routing Engine to support it and grasp the handle on the faceplate with the other hand.
3. Align the rear of the Routing Engine with the guide rails inside the chassis and slide it in completely.

   Caution: Be careful to align the Routing Engine correctly with the guide rails and push it in evenly. Damage can result if it gets lodged in the rails because of uneven movement.

4. Tighten the thumbscrews at each end of the Routing Engine.
5. You can verify correct Routing Engine functioning by issuing the show chassis routing-engine command, described in Maintaining the M7i Routing Engine.

Figure 2: Installing the Routing Engine