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Powering On the DC-Powered MX2010 Router

To power on a DC-powered MX2010 router:

  1. Verify that an external management device is connected to one of the Routing Engine ports on the Control Board and Routing Engine (CB-RE) (AUX, CONSOLE, or MGMT).
  2. Turn on power to the external management device.
  3. Verify that the PDMs are fully inserted in the chassis.
  4. Verify that the source power cables are connected to the appropriate terminal on the PDMs: the positive (+) source cable to the return terminal labeled (RTN) and the negative (–) source cable to the input terminal labeled (–48V).
  5. Switch on the dedicated customer-site circuit breakers to provide power to the DC power cables. Follow your site’s procedures.
  6. Check that the input labeled (–48V) LEDs are lit green steadily, indicating that the PDMs are installed and functioning normally.

    Nine input LEDs indicate proper voltage level and polarity of input feeds.

  7. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  8. For each of the DC PDMs installed, move the DC circuit breaker at the power source to the (ON) position.
  9. On each of the DC PSMs, move the switch to the on (|) position.
  10. Verify that the PWR OK LED is lit green steadily, indicating that the PSM is correctly installed and functioning normally.

    After a PSM is powered on, it can take up to 60 seconds for status indicators—such as the status LEDs on the PSM and the show chassis command display—to indicate that the PSM is functioning normally. Ignore error indicators that appear during the first 60 seconds.

    If any of the status LEDs indicates that the PSM is not functioning normally, repeat the installation and cabling procedures.

  11. Verify that the INP0 or INP1 LEDs on the PSM are lit green steadily if using two feeds.

    The DIP switches 0 and 1 must be set to the ON position for a two-feed installation.

  12. On the external management device connected to the CB-RE, monitor the startup process to verify that the system has booted properly.

    If the system is completely powered off when you power on the PSM, the Routing Engine boots as the PSM completes its startup sequence. Normally, the router boots from the Junos OS on the CompactFlash card.

    To power off the system after the Routing Engine finishes booting, see Powering Off the DC-Powered or DC-Powered (240 V China) MX2000 Router.

  13. Verify the MX2010 router power up, system initialization, and status (see Initially Configuring the MX2010 Router).