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Upgrading to the T1600 Quiet Fan Trays

 
  1. Upgrading the Standard Lower Front Fan Tray to a Quiet Lower Front Fan Tray

  2. Removing the Standard Upper Front Fan Tray

  3. Removing the Craft Interface

  4. Installing the Air Deflector and Craft Interface

  5. Installing the Quiet Upper Front Fan Tray

  6. Upgrading the Standard Rear Fan Tray to a Quiet Rear Fan Tray

Upgrading the Standard Lower Front Fan Tray to a Quiet Lower Front Fan Tray

Each standard front fan tray weighs about  18.6 lb (8.4 kg). Each quiet front fan tray weighs about 17.8 lb (8.1 kg).

  1. Attach an electrostatic discharge (ESD) grounding strap to your wrist, and connect the strap to one of the ESD points on the chassis.
  2. Unwrap any PIC cables from the spools on the front cable management system and remove the cables from the tray. Arrange the cables so that they do not block the front cable management system and tray, and secure them with temporary fasteners so that they are not supporting their own weight as they hang from the connector.Caution

    Do not let fiber-optic cable hang free from the connector. Do not allow fastened loops of cable to dangle, which stresses the cable at the fastening point.

  3. Simultaneously pull the two releases on the front cable management system. Lift it up and outward to lock it in place to access the lower fan tray.
  4. Rearrange the PIC cables in the front cable management system. For more information about proper cable arrangement, see Maintaining T1600 PICs and PIC Cables.
  5. Loosen the captive screws on the corners of the standard lower front fan tray faceplate.
  6. Grasp the handles and pull the standard lower front fan tray halfway out of the chassis.Warning

    To avoid injury, keep tools and your fingers away from the fans as you slide the fan tray out of the chassis. The fans might still be spinning.

  7. Wait for the fans to stop spinning.
  8. After the fans stop spinning, place one hand under the standard lower front fan tray to support it and pull the fan tray completely out of the chassis.
  9. Locate the fan tray labeled FAN-T-FBOT-S LOWER FANTRAY.
  10. Press the two latches located on each side of the quiet lower front fan tray up, and insert the quiet lower front fan tray straight into the lower front fan tray slot. See Figure 1
  11. Tighten the captive screws on each side of the quiet lower front fan tray faceplate to secure it in the chassis.
  12. Unlock the front cable management system and lower it to the fully lowered position.
  13. Rearrange the PIC cables in the front cable management system. For more information about proper cable arrangement, see Maintaining T1600 PICs and PIC Cables.
Figure 1: Installing a Quiet Lower Front Fan Tray
Installing a Quiet Lower Front Fan Tray

Removing the Standard Upper Front Fan Tray

The upper front fan tray is located above the FPC card cage. Each standard front fan tray weighs about  18.6 lb (8.4 kg). The fan trays are hot-removable.

To remove a standard upper front fan tray (see Figure 2):

  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. Loosen the captive screws on the corners of the fan tray faceplate.
  3. Grasp the handles and pull the fan tray halfway out of the chassis.Warning

    To avoid injury, keep tools and your fingers away from the fans as you slide the fan tray out of the chassis. The fans might still be spinning.

  4. Wait for the fans to stop spinning.
  5. After the fans stop spinning, place one hand under the fan tray to support it and pull the fan tray completely out of the chassis.
Figure 2: Removing a Standard Upper Front Fan Tray
Removing
a Standard Upper Front Fan Tray

Removing the Craft Interface

The craft interface is located on the front of the chassis above the FPC card cage. The craft interface is hot-removable. To remove the craft interface (see Figure 3):

  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. Completely loosen the screws at the four corners of the craft interface.
  3. Insert the blade of a flat-blade screwdriver into the slot on one side of the craft interface, then gently pry that side out from the chassis.
  4. Insert the blade of a flat-blade screwdriver into the slot on the other side of the craft interface, then gently pry that side out from the chassis.
  5. Grasp the craft interface by the top and bottom edges and carefully pull it straight out of the chassis.
  6. Remove the Craft Interface Panel by loosening the four fasteners.
Figure 3: Removing the Craft Interface
Removing the Craft
Interface

Installing the Air Deflector and Craft Interface

Note

If an air deflector is already installed, installing another air deflector is not required.

To install the T1600 air deflector:

  1. Slide in the air deflector. See Figure 4 for proper orientation of air deflector. Four holes align with the four standoffs used for mounting the craft interface.
  2. Replace the craft interface and secure with the four fasteners.
    Figure 4: Installing the Air Deflector
    Installing the Air Deflector

Installing the Quiet Upper Front Fan Tray

The upper front fan tray is located above the FPC card cage. Each quiet front fan tray weighs about 17.8 lb (8.1 kg). The fan trays are hot-insertable. The quiet upper and lower fan trays are not interchangeable with each other. The quiet upper front fan tray is labeled FAN-T-FTOP-S UPPER FANTRAY.

To install a quiet upper front fan tray (see Figure 5):

  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. Locate the fan tray labeled FAN-T-FTOP-S UPPER FANTRAY.
  3. Press the two latches located on each side of the quiet upper front fan tray up, and insert the quiet upper front fan tray straight into the upper front fan tray slot.
  4. Tighten the captive screws on each side of the fan tray faceplate to secure it in the chassis.
Figure 5: Installing the Quiet Upper Front Fan Tray
Installing the Quiet
Upper Front Fan Tray

Upgrading the Standard Rear Fan Tray to a Quiet Rear Fan Tray

Caution

To maintain proper cooling, do not operate the router with the rear fan tray removed for more than 1 minute.

To upgrade the rear fan tray (see Figure 6) and Figure 7:

  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. Loosen the captive screws on the top and bottom of the standard fan tray faceplate.
  3. Grasp the handles on the faceplate, and pull the standard rear fan tray halfway out of the chassis.Warning

    To avoid injury, keep tools and your fingers away from the fans as you slide the fan tray out of the chassis. The fans might still be spinning.

  4. After the fans stop spinning, place one hand under the fan tray to support it, and pull the standard fan tray completely out of the chassis.
  5. Locate the quiet rear fan tray labeled REAR FANTRAY FAN-R-S.
  6. Grasp the quiet rear fan tray by its handles and insert it straight into the chassis.
  7. Tighten the captive screws on the quiet rear fan tray faceplate to secure it in the chassis, using a Phillips (+) screwdriver, number 2.
Figure 6: Removing the Standard Rear Fan Tray
Removing the
Standard Rear Fan Tray
Figure 7: Installing the Quiet Rear Fan Tray
Installing
the Quiet Rear Fan Tray