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Upgrading Hardware Components on the T640 or T1600 Router

 

The following components are supported on the T640 and T1600 router, and can be installed without powering off or rebooting the router.

You must proceed through the upgrade process in the following order:

  1. Preparing to Upgrade the T640 or T1600 Components

  2. Upgrade to the Six-Input DC Power Supplies

  3. Upgrade the Fan Trays

  4. Upgrading the Host Subsystem

  5. Removing Unsupported FPCs and PICs

  6. Verify That Components Supported by the T4000 Router Are Installed

Preparing to Upgrade the T640 or T1600 Components

  1. Unpack the upgrade components and verify the parts received.
  2. Gather the tools required to upgrade the T4000 router hardware components.

Upgrade to the Six-Input DC Power Supplies

To upgrade to the six-input DC power supply:

Note

This procedure does not apply to T640 or T1600 routers with AC power supplies. In that case, both AC power supplies must be powered off and removed before the DC power supplies are installed.

  1. Verify that the number of inputs that you plan to connect to the 6-input DC power supply provides sufficient power for your planned configuration for the T4000 router.Note

    For the Junos OS Release 12.1 and 12.2, a minimum of five inputs for each power supply is required. Connecting only four inputs to each DC power supply in a T4000 router is not currently supported.

  2. Remove one of the existing power supplies. For information about removing T640 or T1600 components, see the T640 Core Router Hardware Guide or T1600 Core Router Hardware Guide.
  3. Install one six-input DC power supply.
  4. Connect the DC power cables to the six-input DC power supply.
  5. Repeat the procedure for the other power supply.

Upgrade the Fan Trays

To upgrade the fan trays:

  1. Upgrade the front fan trays.
  2. Upgrade the rear fan tray, if needed. FAN-REAR-TXP-LCC rear fan tray is required. Install the FAN-REAR-TXP-LCC rear fan tray, if not already installed.

Upgrading the Host Subsystem

Upgrade the host subsystem, if needed. For information about upgrading the host subsystem, see the hardware guide for the T640 or T1600 router:

Note

Upgrading a Routing Engine or Control board requires that the host subsystem be taken offline. Upgrade the backup Routing Engine and control board first, bring them online, then upgrade the other Routing Engine and control board.

  1. Take the host subsystem offline.
  2. Upgrade the backup Routing Engine.
  3. Upgrade the backup control board.
  4. Verify that the two configuration switches on the faceplate of the LCC-CB are set correctly for a standalone T4000 router:

    • The M/S configuration switch must be set to S.

    • The CHASSIS ID configuration switch must be set to 0.

  5. Take the other host subsystem offline.
  6. Repeat the procedure for the other Routing Engine and control board.

Removing Unsupported FPCs and PICs

Note

Although you can choose to leave unsupported FPCs and PICs in the T640 or T1600 router, the FPCs and PICs installed in those FPCs will not come online in the T4000 router, and will not function.

To remove unsupported PICs and FPCs from the T640 or T1600 router:

  1. Determine the FPCs supported by the T4000 router for your Junos OS Release. For a list of the FPCs supported by the T4000 router, see T4000 FPCs Supported.
  2. Remove FPCs not supported by the T4000 router. . Install blanks in the FPC slots.
  3. Determine the PICs supported by the T4000 router for your Junos OS Release. For a list of PICs supported by the T4000 router, see the T4000 Core Router Interface Module Reference.
  4. Remove PICs not supported by the T4000 router.

Verify That Components Supported by the T4000 Router Are Installed

To verify that the hardware components supported by the T4000 router are installed on the T640 or T1600 router:

  1. Issue the show chassis hardware models command:
    user@host> show chassis hardware models
  2. Verify that the following hardware components have been installed:
    • Two PWR-T-6-60-DC

    • Two RE-DUO-C1800-8G or two RE-DUO-C1800-16G

    • Two CB-LCC

    • Two FANTRAY-T4000

    • One FAN-REAR-TXP-LCC

  3. Verify that unsupported PICs and FPCs have been removed. See the following documentation: