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MX10004 Routing and Control Board Maintenance

Maintaining a Juniper Networks MX10004 router includes removing and installing the Routing and Control Board (RCB).

Handle and Store Routing and Control Boards Properly

This topic will explain how to handle an RCB when you are installing or after removing an RCB. It also explains how store the RCB.

Handle a Routing and Control Board Properly

Pay attention to the way you handle a Routing and Control Board (RCB). You install RCBs horizontally. It is best to hold them by the sides when they are not in the chassis, to prevent damage to the connectors.

To handle an RCB properly:

  1. Orient the RCB so that the faceplate is toward you.
  2. Grasp each side of the unit firmly as you slide the unit out of the chassis.
  3. Take care not to strike the unit against any object as you carry it.
    CAUTION:

    Never hold the RCB by the connector edge. The connectors are fragile and the RCB will not seat properly if one or more of the connectors are damaged.
  4. If you must rest an RCB on an edge, place a cushion between the edge and the surface.
    CAUTION:

    Do not stack RCBs on top of one another or on top of any other component.
  5. Place each RCB in an individual antistatic bag or separately on an antistatic mat that is placed on a flat, stable surface.

Store a Routing and Control Board in an Electrostatic Bag

You must store Routing and Control Boards (RCBs) either in the chassis or in a spare shipping container, horizontally and sheet-metal side down. Do not stack these units on top of one another or on top of any other component. Place each unit separately in an antistatic bag or on an antistatic mat placed on a flat, stable surface.

Note:

Because these units are heavy and antistatic bags are fragile, two people should insert the RCB into the bag.

To store an RCB in an electrostatic bag:

  1. Hold the unit horizontally with the faceplate toward you.
  2. Have the second person slide the opening of the antistatic bag over the connector edge and then pull the bag to cover the unit.

If you must insert an RCB into a bag by yourself:

  1. Lay the unit horizontally on an antistatic mat that is on a flat, stable surface with the sheet-metal side down.

  2. Orient the unit with the faceplate toward you.

  3. Carefully insert the connector edge into the opening of the bag and pull the bag toward you to cover the unit.

Install an MX10004 Routing and Control Board

A Juniper Networks MX10004 router can have one or two Routing and Control Boards (RCBs), depending on the configuration. You can install RCBs in either of the two top slots on the front of the chassis.

In redundant configurations, an RCB is a hot-removable and hot-insertable field-replaceable unit (FRU). In base configurations, you need to install a second RCB before removing a failing RCB in order to prevent the router from shutting down.

Before you install an RCB, ensure that you have an electrostatic discharge (ESD) grounding strap.

To install an MX10004 RCB:

  1. Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the front of the MX10004 (see Figure 1).
    Figure 1: ESD Point for MX10004 Chassis Front ESD Point for MX10004 Chassis Front
      1
    —

    ESD point

    		 
  2. Either remove the cover panel from the available RCB slot (see Figure 2) or remove the failing RCB (see Remove an MX10004 Routing and Control Board).
    Figure 2: Removing a Routing and Control Board Cover Panel Removing a Routing and Control Board Cover Panel
  3. Remove the new RCB from the electrostatic bag and inspect it for any damage before installing it in the chassis.
  4. Lift the RCB by its sides, being careful not to strike the connectors against any object.
  5. Carefully align the sides of the RCB with the guides inside the chassis.
  6. Slide the RCB into the chassis, carefully ensuring that it is aligned correctly.
  7. Grasp both handles and rotate them clockwise simultaneously until the RCB is fully seated and the handles are vertical (see Figure 3).

    The RCB begins the power-on sequence after it is fully seated.

    Figure 3: Routing and Control Board Installation Routing and Control Board Installation
  8. To verify that the RCB is functioning normally, check the PWR LED on its faceplate and the CONTROL BOARDS LED on the status panel. Both LEDs should light steadily shortly after the RCB is installed. If the PWR LED is blinking yellow, the available power might be insufficient. Ensure that you have adequate power for the additional unit.

    You can also use the show chassis environment cb command to verify that the RCB is online.

Remove an MX10004 Routing and Control Board

A Juniper Networks MX10004 router can have one or two Routing and Control Boards (RCBs), depending on the configuration. You can install RCBs in either of the two top slots on the front of the chassis.

In redundant configurations, an RCB is a hot-removable and hot-insertable field-replaceable unit (FRU). In base configurations, you need to install a second RCB before removing a failing RCB to prevent the router from shutting down. We recommend that you take base systems offline before replacing the RCB.

Before you remove an RCB, ensure that you have the following items:

  • An electrostatic discharge (ESD) grounding strap

  • An antistatic mat

  • A cover panel for the empty slot if you are not replacing the RCB

CAUTION:

In base configurations, removal of the RCB causes the system to shut down. In redundant configurations, removal of the functioning RCB causes the system to reboot and start the election process for a new primary.

To remove an MX10004 RCB:

  1. Place an antistatic bag or antistatic mat on a flat, stable surface.
  2. Use the following CLI commands to take the RCB offline:

    You can use the show chassis environment cb | match State CLI command to verify that the RCB is offline.

  3. Wrap and fasten one end of an ESD strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis (see Figure 1).
  4. Simultaneously rotate the RCB handles counterclockwise to unseat the RCB.
  5. Grasp the handles, and slide the RCB about halfway out of the chassis (see Figure 4).
    Figure 4: Removing a Routing and Control Board Removing a Routing and Control Board
  6. Grasp each side of the RCB and slide it completely out of the chassis.
  7. Place the RCB on the antistatic mat.
  8. If you are not replacing the RCB now, install a cover panel in the empty slot.