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Removing Components from the MX2020 Router Chassis Before Installing it in a Rack

 

Before installing the router with a router transport kit, you must first remove shipping covers and components from the chassis. With components removed, the chassis weighs approximately 429.6 lb (194.86 kg).

Caution

The shipping covers help guide the chassis into the rack. Applying force to any other part of the chassis can cause damage.

Removing the Power Distribution Modules Before Installing an MX2020 Router

Remove the topmost PDM (PDM3/Input1) first, and then work your way downward. To remove an AC or DC PDM (see Figure 1 and Figure 2).

  1. 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.
  2. On an AC-powered router, move the AC circuit breaker from the power source to the off (O) position. On a DC-powered router, move the DC circuit breaker from the power source to the off O position.

    We recommend this precaution even though the PDMs are not connected to power sources.

  3. Loosen the two captive screws on the PDM faceplate. Pull the two spring-loaded locking levers away from the chassis until it stops.Note

    PDM3/Input1 and PDM1/Input1 locking levers are pulled down to release from chassis, and PDM0/Input0 and PDM2/Input0 locking levers are pulled up to release from chassis.

    The PDM is extended slightly away from the chassis.

  4. With both hands, grasp the two handles and gently pull the PDM straight out of the chassis.Caution

    Do not touch the power connector in the back of the PDM. They can get damaged.

    Caution

    Do not stack PDMs on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

Figure 1: Removing an AC Power Distribution Module Before Installing the MX2020 Router
Removing
an AC Power Distribution Module Before Installing the MX2020 Router
Figure 2: Removing a DC Power Distribution Module (-48 V) Before Installing the MX2020 Router
Removing
a DC Power Distribution Module (-48 V) Before Installing the MX2020
Router
Figure 3: Removing a DC Power Distribution Module (240 V China) Before Installing the MX2000 Router
Removing a DC Power Distribution Module (240 V China)
Before Installing the MX2000 Router

Removing the Power Supply Modules Before Installing an MX2020 Router

To remove the AC or DC PSMs (see Figure 4 and Figure 5):

  1. 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.
  2. On an AC-powered router, move the AC power switch on each PSM to the off (O) position. On a DC-powered router, move the DC power switch on each PSM to the off (O) position.

    We recommend this precaution even though the PSMs are not connected to power sources.

  3. Loosen the two captive screws that secure the PSM to the chassis. While grasping the handle on the PSM faceplate with one hand, use your other hand to guide the PSM.
  4. Pull the PSM straight out of the chassis.Caution

    Do not touch the power connector on the back of the PSM. It can get damaged.

    Caution

    Do not stack PSMs on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

Figure 4: Removing a AC Power Supply Module Before Installing the MX2020 Router
Removing
a AC Power Supply Module Before Installing the MX2020 Router
Figure 5: Removing a DC Power Supply Module (-48 V) Before Installing the MX2020 Router
Removing
a DC Power Supply Module (-48 V) Before Installing the MX2020 Router
Figure 6: Removing a DC Power Supply Module (240 V China) Before Installing the MX2000 Router
Removing a DC Power Supply Module (240 V China) Before
Installing the MX2000 Router

Removing the Fan Trays Before Installing an MX2020 Router

To remove the upper and lower fan tray (see Figure 7 and Figure 8):

Note

The fan trays are interchangeable and are hot-insertable and hot-removable.

  1. 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.
  2. Loosen the two captive screws on each side of the fan tray access panel and open.
  3. Loosen the two captive screws on the fan tray faceplate.
  4. Press and hold the latch while simultaneously pulling the fan tray out approximately 1 to 3 in. Place one hand under the fan tray for support, while pulling the fan tray completely out of the router.Warning

    The fan trays use a double latch safety mechanism. You must continually press and hold the latch while removing the fan trays.

  5. Place each component on an antistatic mat resting on a stable, flat surface.Caution

    Do not stack fan trays on one another after you remove them.

Figure 7: Removing Upper Fan Trays
Removing Upper
Fan Trays
Figure 8: Removing Lower Fan Trays
Removing Lower
Fan Trays

Removing the SFBs Before Installing an MX2020 Router

To remove the SFBs (see Figure 9):

  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 an approved site ESD grounding point. See the instructions for your site.
  3. Open the ejector handles outward simultaneously to unseat the SFB.
  4. Grasp the ejector handles, and slide the SFB about halfway out of the chassis.
  5. Place one hand underneath the SFB to support it, and slide it completely out of the chassis. Place it on the antistatic mat.Caution

    The weight of the SFB is concentrated in the back end. Be prepared to accept the full weight—up to 12 lb (5.45 kg)—as you slide the SFB out of the chassis.

    Caution

    Do not stack hardware components on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

  6. Repeat the procedure for each SFB.
Figure 9: Removing an SFB
Removing an SFB

Removing the MPCs with Adapter Card Before Installing an MX2020 Router

To remove an MPC with an adapter card (ADC):

  1. Have ready an antistatic mat for the MPC with an ADC. Also have ready rubber safety caps for each MPC using an optical interface on the MPC 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. Open both the ejector handles simultaneously to unseat the both the MPC and the ADC.
  4. Grasp the handles, and slide the MPC along with the ADC straight out of the card cage halfway.
  5. Place one hand around the front of the MPC with the ADC and the other hand under MPC to support it. Slide the MPC along with the ADC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.Caution

    The weight of the MPC with the ADC is concentrated in the back end. Be prepared to accept the full weight—up to 25.0 lb (11.34 kg)—as you slide the MPC along with the ADC out of the chassis.

    When the MPC along with the ADC 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 MPCs with the ADCs 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.

Removing the MPCs without an Adapter Card Before Installing an MX2020 Router

To remove an MPC without an ADC (see Figure 10):

  1. Have ready an antistatic mat for the MPC. Also have ready rubber safety caps for each MPC that uses an optical interface on the MPC 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 knobs counterclockwise to unseat the MPC from the ADC.
  4. Grasp both knobs, and slide the MPC straight out of the ADC.
  5. Place one hand around the front of the MPC and the other hand under it to support it. Slide the MPC completely out of the ADC, and place it on the antistatic mat or in the electrostatic bag.Caution

    The weight of the MPC is concentrated in the back end. Be prepared to accept the full weight—up to 18.35 lb (8.32 kg)—as you slide the MPC out of the ADC.

    When the MPC is out of the ADC, do not hold it by the knobs, bus bars, or edge connectors. They cannot support its weight.

    Do not stack MPCs 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 10: Removing an MPC without the ADC
Removing an
MPC without the ADC

Removing the CB-REs Before Installing the MX2020 Router

To remove a CB-RE (see Figure 11):

  1. Have ready an antistatic mat for the CB-RE. Also have ready rubber safety caps for each SFP that uses an optical interface on the CB-RE 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. Open both ejector handles simultaneously to unseat the CB-RE.
  4. Grasp the handles, and slide the CB-RE straight out of the card cage halfway.
  5. Place one hand around the front of the CB-RE and the other hand under it to support it. Slide the CB-RE completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.Caution

    The weight of the CB-RE is concentrated in the back end. Be prepared to accept the full weight—up to 15 lb (6.8 kg)—as you slide the CB-RE out of the chassis.

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

    Caution

    Do not stack CB-REs on one another after you remove them. Place each component on an antistatic mat resting on a stable, flat surface.

Figure 11: Removing a CB-RE
Removing a CB-RE