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Installing the MX240 Router

Installing the MX240 Router Mounting Hardware for a Rack or Cabinet

The router can be installed in a four-post rack or cabinet or an open-frame rack. Install the mounting hardware on the rack before installing the router.

Install the mounting shelf, which is included in the shipping container, before installing the router. We recommend that you install the mounting shelf because the weight of a fully loaded chassis can be up to 128 lb (58.1 kg).

Table 1 specifies the holes in which you insert cage nuts and screws to install the mounting hardware required (an X indicates a mounting hole location). The hole distances are relative to one of the standard U divisions on the rack. The bottom of all mounting shelves is at 0.04 in. (0.02 U) above a “U” division.

Table 1: Four-Post Rack or Cabinet Mounting Hole Locations

Hole

Distance Above U Division

Mounting Shelf

4

2.00 in. (5.1 cm)

1.14 U

X

3

1.51 in. (3.8 cm)

0.86 U

X

2

0.88 in. (2.2 cm)

0.50 U

X

1

0.25 in. (0.6 cm)

0.14 U

X

To install the mounting shelf on the front rails of a four-post rack or cabinet, or the rails of an open-frame rack:

  1. If needed, install cage nuts in the holes specified in Table 1.
  2. On the back of each rack rail, partially insert a mounting screw into the lowest hole specified in Table 1.
  3. Install the small shelf on the back of the rack rails. Rest the bottom slot of each flange on a mounting screw.
  4. Partially insert the remaining screws into the open holes in each flange of the small shelf (see Figure 1 or Figure 2).
  5. Tighten all the screws completely.
Figure 1: Installing the Front-Mounting Hardware for a Four-Post Rack or CabinetInstalling the Front-Mounting Hardware for a Four-Post Rack or Cabinet
Figure 2: Installing the Mounting Hardware for an Open-Frame RackInstalling the Mounting Hardware for an Open-Frame Rack

Moving the Mounting Brackets for Center-Mounting the MX240 Router

Two removable mounting brackets are attached to the mounting holes closest to the front of the chassis. You can move the pair of brackets to another position on the side of the chassis for center-mounting the router.

To move the mounting brackets from the front of the chassis toward the center of the chassis:

  1. Remove the three screws at the top and center of the bracket.
  2. Pull the top of the bracket slightly away from the chassis. The bottom of the bracket contains a tab that inserts into a slot in the chassis.
  3. Pull the bracket away from the chassis so that the tab is removed from the chassis slot.
  4. Insert the bracket tab into the slot in the bottom center of the chassis.
  5. Align the bracket with the two mounting holes located toward the top center of the chassis.

    There is no mounting hole in the center of the chassis that corresponds to the hole in the center of the bracket.

  6. Insert the two screws at the top of the bracket and tighten each partially.

    Two screws are needed for mounting the bracket on the center of the chassis. You do not need the third screw.

  7. Tighten the two screws completely.
  8. Repeat the procedure for the other bracket.

Tools Required to Install the MX240 Router with a Mechanical Lift

To install the router, you need the following tools:

  • Mechanical lift

  • Phillips (+) screwdriver, number 2

  • 7/16-in. (11 mm) nut driver

  • ESD grounding wrist strap

Removing Components from the MX240 Router Before Installing it with a Lift

To make the router light enough to install, you first remove most components from the chassis. The procedures in this section for removing components from the chassis are for initial installation only, and assume that you have not connected power cables to the router. The following procedures describe how to remove components from the chassis, first from the rear and then from the front:

Removing the Power Supplies Before Installing the MX240 Router with a Lift

Remove the leftmost power supply first and then work your way to the right. To remove the AC or DC power supplies (see Figure 3):

  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. For an AC-powered router, switch the AC input switch on the power supply to the off (O) position. For a DC-powered router, switch the DC circuit breaker on the power supply to the off (O) position.

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

  3. Pull the power supply straight out of the chassis.
Figure 3: Removing a Power Supply Before Installing the RouterRemoving a Power Supply Before Installing the Router

Removing the Fan Tray Before Installing the MX240 Router with a Lift

To remove the fan tray (see Figure 4 ):

  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 captive screws on the fan tray faceplate.
  3. Grasp the fan tray handle and pull it out approximately 1 to 3 inches.
  4. Press the latch located on the inside of the fan tray to release it from the chassis.
  5. Place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.
Figure 4: Removing the Fan TrayRemoving the Fan Tray

Removing the SCBs Before Installing the MX240 Router with a Lift

To remove the SCBs (see Figure 5):

  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. Rotate the ejector handles simultaneously counterclockwise to unseat the SCB.
  4. Grasp the ejector handles and slide the SCB about halfway out of the chassis.
  5. Place one hand underneath the SCB to support it and slide it completely out of the chassis. Place it on the antistatic mat.
    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 the second SCB.
Figure 5: Removing an SCBRemoving an SCB

Removing the DPCs Before Installing the MX240 Router with a Lift

To remove a DPC (see Figure 6):

  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:

    The weight of the DPC is concentrated in the back end. Be prepared 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 6: Removing a DPCRemoving a DPC

Removing the FPC Before Installing the MX240 Router with a Lift

To remove an FPC (see Figure 7):

  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. Simultaneously turn both the ejector handles counterclockwise to unseat the FPC.
  3. Grasp the handles and slide the FPC straight out of the card cage halfway.
  4. Place one hand around the front of the FPC and the other hand under it to support it. Slide the FPC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.
    CAUTION:

    The weight of the FPC is concentrated in the back end. Be prepared to accept the full weight—up to 18 lb (8.2 kg)—as you slide the FPC out of the chassis.

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

Figure 7: Removing an FPCRemoving an FPC

Installing the MX240 Router By Using a Mechanical Lift

Because of the router's size and weight—up to 128 lb (58.1 kg) depending on the configuration—we strongly recommend that you install the router using a mechanical lift. To make the router light enough to install with a lift, you must first remove most components from the chassis.

CAUTION:

Before front mounting the router in a rack, have a qualified technician verify that the rack is strong enough to support the router's weight and is adequately supported at the installation site.

To install the router using a lift (see Figure 8):

  1. Ensure that the rack is in its permanent location and is secured to the building. Ensure that the installation site allows adequate clearance for both airflow and maintenance.
  2. Load the router onto the lift, making sure it rests securely on the lift platform.
  3. Using the lift, position the router in front of the rack or cabinet, centering it in front of the mounting shelf.
  4. Lift the chassis approximately 0.75 in. above the surface of the mounting shelf and position it as close as possible to the shelf.
  5. Carefully slide the router onto the mounting shelf so that the bottom of the chassis and the mounting shelf overlap by approximately two inches.
  6. Slide the router onto the mounting shelf until the mounting brackets contact the rack rails. The shelf ensures that the holes in the mounting brackets of the chassis align with the holes in the rack rails.
  7. Move the lift away from the rack.
  8. Install a mounting screw into each of the open mounting holes aligned with the rack, starting from the bottom.
  9. Visually inspect the alignment of the router. If the router is installed properly in the rack, all the mounting screws on one side of the rack should be aligned with the mounting screws on the opposite side and the router should be level.
Figure 8: Installing the Router in the RackInstalling the Router in the Rack
Note:

This illustration depicts the router being installed in an open-frame rack. For an illustration of the mounting hardware required for a four-post open rack or open cabinet, see Installing the MX240 Router Mounting Hardware for a Rack or Cabinet.

Reinstalling Components in the MX240 Router After Installing it with a Lift

After the router is installed in the rack, you reinstall the removed components before booting and configuring the router. The following procedures describe how to reinstall components in the chassis, first in the rear and then in the front:

Reinstalling the Power Supplies After Installing the MX240 Router with a Lift

Reinstall the rightmost power supply first and then work your way to the left. To reinstall the AC or DC power supplies (see Figure 9, which shows the installation of the DC power supplies):

  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.
  2. For an AC-powered router, switch the AC input switch on the power supply to the off (O) position. For a DC-powered router, switch the circuit breaker on the power supply to the off (O) position.

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

  3. Using both hands, slide the power supply straight into the chassis until the power supply is fully seated in the chassis slot. The power supply faceplate should be flush with any adjacent power supply faceplate or blank installed in the power supply slot.
  4. Tighten the captive screws.
Figure 9: Reinstalling a Power SupplyReinstalling a Power Supply

Reinstalling the Fan Tray After Installing the MX240 Router with a Lift

To reinstall the fan tray (see Figure 10):

  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.
  2. Grasp the fan tray on each side and insert it straight into the chassis. Note the correct orientation by the "this side up" label on the top surface of the fan tray.
  3. Tighten the captive screws on the fan tray faceplate to secure it in the chassis.
Figure 10: Reinstalling a Fan TrayReinstalling a Fan Tray

Reinstalling the SCBs After Installing the MX240 Router with a Lift

To reinstall an SCB (see Figure 11):

CAUTION:

Before removing or replacing an SCB, ensure that the ejector handles are stored vertically and pressed toward the center of the SCB.

  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.
  2. Carefully align the sides of the SCB with the guides inside the chassis.
  3. Slide the SCB into the chassis until you feel resistance, carefully ensuring that it is correctly aligned.
  4. Grasp both ejector handles and rotate them simultaneously clockwise until the SCB is fully seated.
  5. Place the ejector handles in their proper position, horizontally and toward the center of the board. To avoid blocking the visibility of the LEDs position the ejectors over the PARK icon.
Figure 11: Reinstalling an SCBReinstalling an SCB

Reinstalling the DPCs After Installing the MX240 Router with a Lift

To reinstall a DPC (see Figure 12):

  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.
  2. Place the DPC on an antistatic mat or remove it from its electrostatic bag.
  3. Identify the slot on the router where it will be installed.
  4. Verify that each fiber-optic transceiver is covered by a rubber safety cap. If it does not, cover the transceiver with a safety cap.
  5. Orient the DPC so that the faceplate faces you.
  6. Lift the DPC into place and carefully align the sides of the DPC with the guides inside the card cage.
  7. Slide the DPC all the way into the card cage until you feel resistance.
  8. Grasp both ejector handles and rotate them clockwise simultaneously until the DPC is fully seated.
Figure 12: Reinstalling a DPCReinstalling a DPC

Reinstalling the FPCs After Installing the MX240 Router with a Lift

To reinstall a DPC (see Figure 13):

  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.
  2. Place the FPC on an antistatic mat or remove it from its electrostatic bag.
  3. Identify the two DPC slots on the router where the FPC will be installed.
  4. Verify that each fiber-optic transceiver on the PIC is covered by a rubber safety cap. If it does not, cover the transceiver with a safety cap.
  5. Orient the FPC so that the faceplate faces you.
  6. Lift the FPC into place and carefully align the sides of the FPC with the guides inside the card cage.
  7. Slide the FPC all the way into the card cage until you feel resistance.
  8. Grasp both ejector handles and rotate them clockwise simultaneously until the FPC is fully seated.
Figure 13: Reinstalling an FPCReinstalling an FPC

See Also

Tools Required to Install the MX240 Router without a Mechanical Lift

To install the router, you need the following tools and parts:

  • Phillips (+) screwdrivers, numbers 1 and 2

  • 7/16-in. nut driver

  • ESD grounding wrist strap

Removing Components from the MX240 Router Before Installing it without a Lift

To make the router light enough to install manually, you first remove most components from the chassis. The procedures in this section for removing components from the chassis are for initial installation only, and assume that you have not connected power cables to the router. The following procedures describe how to remove components from the chassis, first from the rear and then from the front:

Removing the Power Supplies Before Installing the MX240 Router without a Lift

Remove the leftmost power supply first and then work your way to the right. To remove the AC or DC power supplies (see Figure 14):

  1. Attach an ESD grounding strap to your bare wrist, and connect the other end of the strap to an approved site ESD grounding point. See the instructions for your site.
  2. For an AC-powered router, switch the AC input switch on the power supply to the off (O) position. For a DC-powered router, switch the DC circuit breaker on the power supply to the off (O) position.

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

  3. Pull the power supply straight out of the chassis.
Figure 14: Removing a Power Supply Before Installing the RouterRemoving a Power Supply Before Installing the Router

Removing the Fan Tray Before Installing the MX240 Router without a Lift

To remove the fan tray (see Figure 15 ):

  1. Attach an ESD grounding strap to your bare wrist, and connect the other end of the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Loosen the captive screws on the fan tray faceplate.
  3. Grasp the fan tray handle, and pull it out approximately 1 to 3 inches.
  4. Press the latch located on the inside of the fan tray to release it from the chassis.
  5. Place one hand under the fan tray to support it, and pull the fan tray completely out of the chassis.
Figure 15: Removing the Fan TrayRemoving the Fan Tray

Removing the SCBs Before Installing the MX240 Router without a Lift

To remove the SCBs (see Figure 16):

  1. Place an electrostatic bag or antistatic mat on a flat, stable surface.
  2. Attach an ESD grounding strap to your bare wrist, and connect the other end of the strap to an approved site ESD grounding point. See the instructions for your site.
  3. Rotate the ejector handles simultaneously counterclockwise to unseat the SCB.
  4. Grasp the ejector handles, and slide the SCB about halfway out of the chassis.
  5. Place one hand underneath the SCB to support it, and slide it completely out of the chassis. Place it on the antistatic mat.
    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 SCB.
Figure 16: Removing an SCBRemoving an SCB

Removing the DPCs Before Installing the MX240 Router without a Lift

To remove a DPC (see Figure 17):

  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 ESD grounding strap to your bare wrist, and connect the other end of 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:

    The weight of the DPC is concentrated in the back end. Be prepared 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 17: Removing a DPCRemoving a DPC

Removing the FPC Before Installing the MX240 Router without a Lift

To remove an FPC (see Figure 18):

  1. Attach an ESD grounding strap to your bare wrist, and connect the other end of the strap to an approved site ESD grounding point. See the instructions for your site.
  2. Simultaneously turn both the ejector handles counterclockwise to unseat the FPC.
  3. Grasp the handles and slide the FPC straight out of the card cage halfway.
  4. Place one hand around the front of the FPC and the other hand under it to support it. Slide the FPC completely out of the chassis, and place it on the antistatic mat or in the electrostatic bag.
    CAUTION:

    The weight of the FPC is concentrated in the back end. Be prepared to accept the full weight—up to 18 lb (8.2 kg)—as you slide the FPC out of the chassis.

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

Figure 18: Removing an FPCRemoving an FPC

Installing the MX240 Chassis in the Rack Manually

To install the router in the rack (see Figure 19):

CAUTION:

If you are installing more than one router in a rack, install the lowest one first. Installing a router in an upper position in a rack or cabinet requires a lift.

CAUTION:

Before front mounting the router in a rack, have a qualified technician verify that the rack is strong enough to support the router's weight and is adequately supported at the installation site.

CAUTION:

Lifting the chassis and mounting it in a rack requires two people. The empty chassis weighs approximately 52.0 lb (23.6 kg).

  1. Ensure that the rack is in its permanent location and is secured to the building. Ensure that the installation site allows adequate clearance for both airflow and maintenance.
  2. Position the router in front of the rack or cabinet, centering it in front of the mounting shelf. Use a pallet jack if one is available.
  3. With one person on each side, hold onto the bottom of the chassis and carefully lift it onto the mounting shelf.
    Warning:

    To prevent injury, keep your back straight and lift with your legs, not your back. Avoid twisting your body as you lift. Balance the load evenly and be sure that your footing is solid.

  4. Slide the router onto the mounting shelf until the mounting brackets contact the rack rails. The shelf ensures that the holes in the mounting brackets of the chassis align with the holes in the rack rails.
  5. Install a mounting screw into each of the open mounting holes aligned with the rack, starting from the bottom.
  6. Visually inspect the alignment of the router. If the router is installed properly in the rack, all the mounting screws on one side of the rack should be aligned with the mounting screws on the opposite side and the router should be level.
Figure 19: Installing the Router in the RackInstalling the Router in the Rack
Note:

This illustration depicts the router being installed in an open-frame rack. For an illustration of the mounting hardware required for a four-post rack or cabinet, see Installing the MX240 Router Mounting Hardware for a Rack or Cabinet.

Reinstalling Components in the MX240 Router After Installing it without a Lift

After the router is installed in the rack, you reinstall the removed components before booting and configuring the router. The following procedures describe how to reinstall components in the chassis, first in the rear and then in the front:

Reinstalling the Power Supplies After Installing the MX240 Router without a Lift

Reinstall the rightmost power supply first and then work your way to the left. To reinstall the AC or DC power supplies (see Figure 20, which shows the installation of the DC power supplies):

  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.
  2. For an AC-powered router, switch the AC input switch on the power supply to the off (O) position. For a DC-powered router, switch the circuit breaker on the power supply to the off (O) position.

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

  3. Using both hands, slide the power supply straight into the chassis until the power supply is fully seated in the chassis slot. The power supply faceplate should be flush with any adjacent power supply faceplate or blank installed in the power supply slot.
  4. Tighten the captive screws.
Figure 20: Reinstalling a Power SupplyReinstalling a Power Supply

Reinstalling the Fan Tray After Installing the MX240 Router without a Lift

To reinstall the fan tray (see Figure 21):

  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.
  2. Grasp the fan tray on each side and insert it straight into the chassis. Note the correct orientation by the "this side up" label on the top surface of the fan tray.
  3. Tighten the captive screws on the fan tray faceplate to secure it in the chassis.
Figure 21: Reinstalling a Fan TrayReinstalling a Fan Tray

Reinstalling the SCBs After Installing the MX240 Router without a Lift

To reinstall an SCB (see Figure 22):

CAUTION:

Before removing or replacing an SCB, ensure that the ejector handles are stored vertically and pressed toward the center of the SCB.

  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.
  2. Carefully align the sides of the SCB with the guides inside the chassis.
  3. Slide the SCB into the chassis until you feel resistance, carefully ensuring that it is correctly aligned.
  4. Grasp both ejector handles and rotate them simultaneously clockwise until the SCB is fully seated.
  5. Place the ejector handles in their proper position, horizontally and toward the center of the board. To avoid blocking the visibility of the LEDs position the ejectors over the PARK icon.
Figure 22: Reinstalling an SCBReinstalling an SCB

Reinstalling the DPCs After Installing the MX240 Router without a Lift

To reinstall a DPC (see Figure 23):

  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.
  2. Place the DPC on an antistatic mat or remove it from its electrostatic bag.
  3. Identify the slot on the router where it will be installed.
  4. Verify that each fiber-optic transceiver is covered by a rubber safety cap. If it does not, cover the transceiver with a safety cap.
  5. Orient the DPC so that the faceplate faces you.
  6. Lift the DPC into place and carefully align the sides of the DPC with the guides inside the card cage.
  7. Slide the DPC all the way into the card cage until you feel resistance.
  8. Grasp both ejector handles and rotate them clockwise simultaneously until the DPC is fully seated.
Figure 23: Reinstalling a DPCReinstalling a DPC

Reinstalling the FPCs After Installing the MX240 Router without a Lift

To reinstall a DPC (see Figure 24):

  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.
  2. Place the FPC on an antistatic mat or remove it from its electrostatic bag.
  3. Identify the two DPC slots on the router where the FPC will be installed.
  4. Verify that each fiber-optic transceiver on the PIC is covered by a rubber safety cap. If it does not, cover the transceiver with a safety cap.
  5. Orient the FPC so that the faceplate faces you.
  6. Lift the FPC into place and carefully align the sides of the FPC with the guides inside the card cage.
  7. Slide the FPC all the way into the card cage until you feel resistance.
  8. Grasp both ejector handles and rotate them clockwise simultaneously until the FPC is fully seated.
Figure 24: Reinstalling an FPCReinstalling an FPC

See Also