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Powering On the T4000 Router


To power on the DC-powered T4000 router:

  1. Verify that the power supplies are fully inserted in the chassis and that the captive screws on their faceplates are tightened.
  2. Verify that the source power cables are connected to the appropriate terminal: the positive (+) source cable to the return terminal (labeled RTN) and the negative (–) source cable to the input terminal (labeled –48V).
  3. Verify that an external management device is connected to one of the Routing Engine ports on the CIP (AUXILIARY, CONSOLE, or ETHERNET). Note

    If you are powering on the router for the first time, the AUXILIARY and ETHERNET ports do not function until after the initial configuration procedure.

  4. Turn on the power to the external management device.
  5. Switch on the dedicated customer site circuit breakers to provide power to the DC power cables. Follow your site’s procedures.
  6. Verify that the INPUT PRESENT LED for each input on the DC power supply faceplate is lit steadily green, indicating that the inputs are receiving power.
  7. Switch the power switch on the power supply to the ON position (). The DC OK LED blinks momentarily, then lights steadily.Note

    After a power supply is powered on, it can take up to 60 seconds for status indicators—such as the LEDs on the power supply, the command output displays, and messages on the LED display on the craft interface—to indicate that the power supply is functioning normally. Ignore error indicators that appear during the first 60 seconds.

  8. Verify that the DC OK LED on the DC power supply faceplate is lit steadily, indicating that power supply is correctly installed and functioning properly.
  9. On the external management device connected to the Routing Engine, monitor the startup process to verify that the router has booted properly.
  10. Repeat the procedure for the other power supply.
Figure 1: Six-Input DC Power Supply
Six-Input DC Power