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ACX7332 Fan Tray Maintenance

SUMMARY Maintaining the ACX7332 router includes removing and installing fan trays.

The ACX7332 router has four independent, field-replaceable fan trays installed on the rear of the chassis. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU), which means that you can remove and replace the fan trays while the router is running. You remove and replace the fan trays without turning off power to the router or disrupting routing functions.

Remove a Fan Tray from the ACX7332 Router

Before you remove a fan tray:

  • Ensure that you understand how to prevent ESD damage.

  • Ensure that you have the following parts and tools available to remove a fan tray from the ACX7332 router:

    • Electrostatic discharge (ESD) grounding strap

    • Replacement fan tray

CAUTION:

Do not remove the fan tray unless you have a replacement fan tray available.

The fan tray on an ACX7332 router can be accessed from the front or the rear of the chassis.

Remove a Fan Tray from the Rear of the Chassis

To remove a fan tray from the rear of the chassis:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to one of the ESD points on the chassis.
  2. Press the button on the fan tray ejector handle to unlock the fan tray. Pull down the ejector handle and pull the fan tray completely out of the chassis. See Figure 1.
    Figure 1: Remove a Fan Tray from an ACX7332 Router Remove a Fan Tray from an ACX7332 Router
  3. Place the fan tray in a antistatic bag or on a antistatic mat placed on a flat, stable surface.

Remove a Fan Tray from the Front of the Chassis

To remove a fan tray from the front of the chassis:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to one of the ESD points on the chassis.
  2. Loosen the thumb screws and completely pull out the chassis.
    Note:

    You must provide enough slack on the optical cables when you pull the chassis forward.
  3. Press the button on the fan tray ejector handle to unlock the fan tray. Pull down the ejector handle and pull the fan tray completely out of the chassis.
    Figure 2: Remove the Fan Tray Remove the Fan Tray
  4. Place the fan tray in a antistatic bag or on a antistatic mat placed on a flat, stable surface.
    Note:

    The fan tray LED will turn off when a fan tray is removed.

Install a Fan Tray in the ACX7332 Router

Before you begin to install a fan tray:

  • Ensure that you understand how to prevent ESD damage.

  • Ensure that you have the following parts and tools available to install a fan tray in an ACX7332 router:

    • Electrostatic discharge (ESD) grounding strap

    • A replacement fan tray

To install an ACX7332 fan tray:

  1. Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to one of the ESD points on the chassis.
  2. Rest the bottom edge of the fan tray in the slot and slide the fan tray into place so it is fully seated.
  3. Push the ejector handle upwards until it snaps in place. See Figure 3.
    Note:

    The fan tray LED will glow green when a fan tray is inserted.
Figure 3: Install a Fan Tray in an ACX7332 Router Install a Fan Tray in an ACX7332 Router