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Replace Fan Trays in the PTX10002-60MR

Maintaining the cooling system in the PTX10002-60MR includes removing and installing the fan trays.

We ship the router with 2+1 redundant fan modules preinstalled in the rear panel. Fan modules in the PTX10002-60MR are hot-removable and hot-insertable field-replaceable units (FRUs) installed on the rear panel of the chassis. You can remove and replace the fan modules without powering off the PTX10002-60MR or disrupting the device functions.

Remove a Fan Module from the PTX10002-60MR

Before you remove a fan module, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available:

  • An ESD grounding strap—not provided

  • An antistatic bag or an antistatic mat—not provided

  • A Phillips (+) screwdriver, number 1—not provided

  • A replacement fan module

CAUTION:

Replace the fan module within the time specified below to prevent components in the chassis from overheating and shutting down:

  • Device with 800 Gbps optics -

    • replace within 40 seconds at 40° C, Sea Level

    • replace within 90 minutes at 25° C, Sea Level

  • Device with 400 Gbps optics -

    • replace within 60 seconds at 40° C, Sea Level

    • replace within 90 minutes at 25° C, Sea Level

  • Device with 100 Gbps optics -

    • replace within 10 minutes at 40° C, Sea Level

    • replace within 90 minutes at 25° C, Sea Level

If you replace a fan module when the ambient temperature is below 96.8° F (36° C) and the power drawn by each transceiver installed in the router is below 25 W, none of the transceivers would shut down due to overheating. Before removing the fan module, ensure you have a replacement fan module available.

To remove a fan module:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  2. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  3. Using the Phillips screwdriver, loosen the locking screw (3 or 4 turns to the left).
    Figure 1: Remove a Fan Module Remove a Fan Module
  4. Grasp the handle on the fan module and squeeze the outside of the handle to release the module.
    Warning:

    To avoid injury, do not touch the fan with your hands or any tools as you slide the fan module out of the chassis—the fan might still be running.
  5. Pull firmly to slide the fan module halfway out of the chassis.
  6. When the fan stops spinning, slide the fan module completely out of the chassis.
  7. Place the fan module in the antistatic bag or on the antistatic mat.
Note:

When a fan module is removed, the CLI message Fan/Blower is Absent is logged in the system log, and the system raises a major alarm.

Install a Fan Module in the PTX10002-60MR

Before you install a fan module, ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).

Ensure that you have the following parts and tools available:

  • An ESD grounding strap—not provided

  • A Phillips (+) screwdriver, number 1—not provided

To install a fan module:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to a site ESD point.
  2. Taking care not to touch the connectors, remove the fan module from its bag.
  3. Align the module with the empty fan module slot on the rear panel of the router and slide it in until it is fully seated.
    Figure 2: Install a Fan Module Install a Fan Module
  4. Using the Phillips screwdriver, tighten the locking screw (3 or 4 turns to the right).