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Maintain the PTX10016 Cooling System Components

The PTX10016 router has two independent, field-replaceable fan trays and fan tray controllers. To install or remove the fan trays and fan tray controllers, read the following sections.

Install a Fan Tray in the PTX10016 Router

Before you install a fan tray:

  • Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available:

    • Electrostatic discharge (ESD) grounding strap (provided in the accessory kit)

    • Optional—A Phillips (+) screwdriver, number 1 or 2

Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the router is running without turning off power to the router or disrupting routing functions. There are two models of the fan tray (part numbers: JNP10016-FAN and JNP10016-FAN2).

Each fan tray is installed vertically on the rear, or FRU side, of the chassis.

To install a 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. An ESD point is located next to the protective grounding terminal and below PSU 9 on the rear of the PTX10016 chassis (see Figure 1).
    Figure 1: ESD Point on the Rear of the PTX10016 Chassis ESD Point on the Rear of the PTX10016 Chassis
      1
    ESD point
     
  2. Grasp the top and bottom fan tray handles and align the bottom of the fan tray with the bottom of the fan tray slot.
  3. Rest the bottom edge of the fan tray in the slot and slide the fan tray into place so it is fully seated.
  4. Tighten the captive screws until the screws are finger tight. See Figure 2 and Figure 3.
Figure 2: Installing the JNP10016-FAN Fan Tray in the PTX10016 RouterInstalling the JNP10016-FAN Fan Tray in the PTX10016 Router
Figure 3: Installing the JNP10016-FAN2 Fan Tray in the PTX10016 RouterInstalling the JNP10016-FAN2 Fan Tray in the PTX10016 Router

Remove a Fan Tray from the PTX10016 Router

The PTX10016 chassis has two independent, field-replaceable fan trays. Each fan tray is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace the fan tray while the router is running without turning off power to the router or disrupting routing functions. There are two models of fan tray for the PTX10016 (JNP10016-FAN and JNP10016-FAN2).

Each fan tray is installed vertically on the rear, or FRU-side, of the chassis.

Before you remove a fan tray:

  • Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available:

    • Electrostatic discharge (ESD) grounding strap (provided in the accessory kit)

    • Replacement fan tray

    • An antistatic bag or antistatic mat

    • Optional—A Phillips (+) screwdriver, number 1 or 2

Note:

If you are replacing the fans at 40° C chassis ambient temperature, run the fans at 100% speed for at least 10 minutes before you start the repalcement procedure.

If Junos OS is installed in your router, use the test chassis fan tray 0 speed full-speed and test chassis fan tray 1 speed full-speed commands to configure the fans to operate at 100% speed.

If Junos OS Evolved is installed in your router, use the request chassis fan tray 0 speed 100 and request chassis fan tray 1 speed 100 commands to configure the fans to operate at 100% speed.

After you replace the fan tray, you must configure the fan trays to operate at the normal speed. If Junos OS is installed in your router, use the test chassis fan tray 0 speed normal and test chassis fan tray 1 speed normal commands to configure the fan trays to operate at the normal speed.

If Junos OS Evolved is installed in your router, use the request chassis fan tray 0 speed normal and request chassis fan tray 1 speed normal commands to configure the fan trays to operate at the normal speed.

You must replace the fan tray within the time mentioned in Table 1 of removing the fan tray to prevent overheating of the chassis. If you are removing a JNP10016-FAN2 fan tray to access a JNP10016-SF3 Switch Interface Board (SIB), we recommend that you either perform the necessary work during a maintenance window or reinstall the fan tray within time mentioned in Table 1.

Table 1: Replacement Duration for the Fan Tray

Chassis Ambient Temperature

Duration

20° C

5 minutes

30° C

3 minutes

40° C

1.3 minutes

To remove a PTX10016 fan tray:

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. 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. An ESD point is located next to the protective grounding terminal and below PSU 9 on the rear of the PTX10016 chassis (see Figure 4).
    Figure 4: ESD Point on the Rear of the PTX10016 Chassis ESD Point on the Rear of the PTX10016 Chassis
      1
    ESD point
     
  3. Loosen the four captive screws either by unscrewing with your thumb and forefinger or with a Phillips screwdriver.
  4. Grasp the top and bottom handles and pull the fan tray out about 3 in. (7.6 cm). See Figure 5 and Figure 6.
    Figure 5: Remove the JNP10016-FAN Fan Tray from the PTX10016 Router Remove the JNP10016-FAN Fan Tray from the PTX10016 Router
    Figure 6: Remove the JNP10016-FAN2 Fan Tray from the PTX10016 Router Remove the JNP10016-FAN2 Fan Tray from the PTX10016 Router
  5. Tilt the top of the fan tray forward.
  6. Using both hands, lift the fan tray out of the slot and rest it in the antistatic bag or on the antistatic mat with the handles to the side.

Install a Fan Tray Controller in the PTX10016 Router

For each of the two fan trays, there is a fan tray controller. Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace one fan tray controller while the router is running without turning off power to the router or disrupting routing functions. There are two models of fan tray controller for the PTX10016:

  • JNP10016-FAN-CTRL, which supports the fan tray with part number JNP10016-FAN

  • JNP10016-FTC2, which supports the fan tray with part number JNP10016-FAN2

See Figure 7 and Figure 8.

Figure 7: JNP10016-FAN-CTRL Fan Tray Controller JNP10016-FAN-CTRL Fan Tray Controller
Figure 8: JNP10016-FTC2 Fan Tray Controller JNP10016-FTC2 Fan Tray Controller

With the fan tray removed, the fan tray controller is installed horizontally above the Switch Interface Boards (SIBs) at the top of the chassis.

Before you install a fan tray controller:

To install a fan tray controller:

  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. An ESD point is located next to the protective grounding terminal and below PSU 9 on the rear of the PTX10016 chassis (see Figure 9).
    Figure 9: ESD Point on the Rear of the PTX10016 Chassis ESD Point on the Rear of the PTX10016 Chassis
      1
    ESD point
     
  2. Remove the replacement fan tray controller from the antistatic bag.
  3. Carefully slide the fan tray controller into the fan tray controller slot until it is flush with the mounting holes. See Figure 10 for the JNP10016-FAN-CTRL fan tray controller and Figure 11 for the JNP10016-FTC2 fan tray controller.
    Figure 10: Install a JNP10016-FAN-CTRL Fan Tray Controller Install a JNP10016-FAN-CTRL Fan Tray Controller
    Figure 11: Install a JNP10016-FTC2 Fan Tray Controller Install a JNP10016-FTC2 Fan Tray Controller
  4. By using a Phillips screwdriver, tighten the captive screws for the fan tray controller.
  5. Replace the fan tray. See Install a Fan Tray in the PTX10016 Router.

Remove a Fan Tray Controller from the PTX10016 Router

For each of the two fan trays, there is a fan tray controller. Each controller is a hot-removable and hot-insertable field-replaceable unit (FRU); you can remove and replace one fan tray controller while the router is running without turning off power to the router or disrupting routing functions. There are two models of fan tray controllers for the PTX10016 routers:

  • JNP10016-FAN-CTRL, which supports the fan tray with part number JNP10016-FAN

  • JNP10016-FTC2, which supports the fan tray with part number JNP10016-FAN2

See Figure 12 for the JNP10016-FAN-CTRL fan tray controller and Figure 13 for the JNP10016-FTC2 fan tray controller.

Figure 12: JNP10016-FAN-CTRL Fan Tray Controller JNP10016-FAN-CTRL Fan Tray Controller
Figure 13: JNP10016-FTC2 Fan Tray Controller JNP10016-FTC2 Fan Tray Controller
CAUTION:

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

To access a fan tray controller, you must first remove the fan tray. With the fan tray removed, the fan tray controller is installed horizontally above the switch interface boards (SIBs) at the top of the chassis.

Before you remove a fan tray controller:

  • Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

  • Ensure that you have the following parts and tools available:

    • Electrostatic discharge (ESD) grounding strap (provided in the accessory kit)

    • An antistatic bag or an antistatic mat

    • Replacement fan tray controller (part number: JNP10016-FAN-CTRL or JNP10016-FTC2)

    • A Phillips (+) screwdriver, number 1, for the captive screws

  1. Remove the fan tray. See Remove a Fan Tray from the PTX10016 Router.
  2. Loosen the two captive screws on each side of the fan tray controller by using the screwdriver.
  3. Grasp the fan tray controller and pull it straight out of the slot. See Figure 14 for the JNP10016-FAN-CTRL fan tray controller and Figure 15 for the JNP10016-FTC2 fan tray controller.
    Figure 14: Remove the JNP10016-FAN-CTRL Fan Tray Controller Remove the JNP10016-FAN-CTRL Fan Tray Controller
    Figure 15: Remove the JNP10016-FTC2 Fan Tray Controller Remove the JNP10016-FTC2 Fan Tray Controller
  4. Place the fan tray controller in an antistatic bag or on an antistatic mat.