Removing The Dpcs Before Installing The Mx240 Router Without A Lift - Juniper MX240 Hardware Manual

Removing the DPCs Before Installing the MX240 Router without a Lift

To remove a DPC (see Figure 63 on page
1. Have ready an antistatic mat for the DPC. Also have ready rubber safety caps for each DPC using an
optical interface on the DPC that you are removing.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
an approved site ESD grounding point. See the instructions for your site.
3. Simultaneously turn both the ejector handles counterclockwise to unseat the DPC.
4. Grasp the handles, and slide the DPC straight out of the card cage halfway.
5. Place one hand around the front of the DPC and the other hand under it to support it. Slide the DPC
completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.
CAUTION:
to accept the full weight—up to 13.1 lb (5.9 kg)—as you slide the DPC out of
the chassis.
When the DPC is out of the chassis, do not hold it by the ejector handles, bus
bars, or edge connectors. They cannot support its weight.
Do not stack DPC on top of one another after removal. Place each one
individually in an electrostatic bag or on its own antistatic mat on a flat, stable
surface.
Figure 63: Removing a DPC
235):
The weight of the DPC is concentrated in the back end. Be prepared
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