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Replacing an MX960 AS MLC

 

Removing an MX960 AS MLC

When you remove an Application Services Modular Line Card (AS MLC), the router continues to function, although the modular cards (AS MXC and AS MSC) installed on the AS MLC being removed no longer function.

Up to eight AS MLCs can be installed vertically in the front of the MX960 router. The AS MLCs are hot-insertable and hot-removable. An empty AS MLC weighs 10.5 lb  (4.76 kg). A fully configured AS MLC can weigh up to 15.27 lb  (6.93 kg). Be prepared to accept its full weight.

To remove an AS MLC (See Figure 1):

  1. Have ready a replacement AS MLC or an AS MLC blank panel and an antistatic mat for the AS MLC.
  2. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  3. Use one of the following methods to take the AS MLC offline:
    • Press and hold the AS MLC online/offline button. The green OK LED next to the button begins to blink. Hold the button down until the LED goes out. The online/offline button for each AS MLC is located directly above it on the craft interface.

    • Issue the following CLI command:

      user@host>request chassis fpc slot slot-number offline

      For more information about the command, see the CLI Explorer.

      Note

      The slot number corresponds to the lowest numbered slot for which the AS MLC is installed.

  4. Simultaneously turn both the ejector handles counterclockwise to unseat the AS MLC.
  5. Grasp the handles, and slide the AS MLC straight out of the card cage halfway.
  6. Place one hand around the front of the AS MLC (the modular card housing) and the other hand under it to support it. Slide the AS MLC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.Caution

    The weight of the AS MLC is concentrated in the back end. Be prepared to accept the full weight—up to 15.27 lb  (6.93 kg)—as you slide the AS MLC out of the chassis.

    When the AS MLC 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 AS MLCs 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.

  7. If necessary, remove each installed AS MSC and AS MXC from the AS MLC.
  8. After you remove each modular card, immediately place it on an antistatic mat or in an electrostatic bag.
  9. If you are not reinstalling an AS MLC into the emptied slots within a short time, install a blank AS MLC panel over each slot to maintain proper airflow in the card cage.Caution

    After removing an AS MLC from the chassis, wait at least 30 seconds before reinserting it or inserting an AS MLC into a different slot.

Figure 1: Removing an AS MLC
Removing an AS MLC

Installing an MX960 AS MLC

You can install up to eight Application Services Modular Line Cards (AS MLCs) vertically in the front of the MX960 router. The AS MLCs are hot-insertable and hot-removable. An empty AS MLC weighs 10.5 lb  (4.76 kg). A fully configured AS MLC can weigh up to 15.27 lb  (6.93 kg). Be prepared to accept its full weight.

To install an AS MLC (see Figure 2):

  1. Attach an ESD grounding strap to your bare wrist and connect the strap to one of the ESD points on the chassis.
  2. Place the AS MLC on an antistatic mat.
  3. Take the AS MSC and AS MXC (the modular cards) to be installed in the AS MLC out of its electrostatic bag. The AS MSC must be inserted in the top slot and the AS MXC in the bottom slot.
  4. Install the AS MSC and AS MXC into the appropriate slot on the AS MLC.
  5. Locate the slots in the card cage in which you plan to install the AS MLC.
  6. Orient the AS MLC so that the faceplate faces you.
  7. Lift the AS MLC into place, and carefully align the sides of the AS MLC with the guides inside the card cage.Caution

    When the AS MLC is out of the chassis, do not hold it by the ejector handles, bus bars, or edge connectors. They cannot support its weight.

  8. Slide the AS MLC all the way into the card cage until you feel resistance.
  9. Grasp both ejector handles, and rotate them clockwise simultaneously until the AS MLC is fully seated.
  10. Use one of the following methods to bring the AS MLC online:
    • Press and hold the AS MLC online/offline button until the green OK LED next to the button lights steadily, in about 5 seconds. The LEDs and online/offline button for each AS MLC are located directly above it on the craft interface.

    • Issue the following CLI command:

      user@host>request chassis fpc slot slot-number online

      For more information about the command, see the CLI Explorer.

    Caution

    After the OK LED lights steadily, wait at least 30 seconds before removing the AS MLC again, removing an AS MLC from a different slot, or inserting an AS MLC in a different slot.

You can also verify correct AS MLC and AS MSC or AS MXC functioning by issuing the show chassis fpc and show chassis fpc pic-status.

Figure 2: Installing an AS MLC
Installing an AS MLC