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Replacing an MX2010 DC Power Supply Module (-48 V)

Removing an MX2010 DC Power Supply Module (-48 V)

Before you remove a PSM, be aware of the following:

CAUTION:

To maintain proper cooling and prevent thermal shutdown of the operating PSM, each PSM slot must contain either a PSM or a blank panel. If you remove a PSM, you must install a replacement PSM or a blank panel shortly after the removal.

Note:

After powering off a PSM, wait at least 60 seconds before turning it back on.

To remove a DC PSM (see Figure 1):

Note:

The DC PSM is hot-swappable, with a minimum number of PSMs installed.

  1. With one PSM installed and operational, remove any additional PSM by turning the power switch to the off (O) position.
  2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  3. Loosen the two captive screws on the PSM faceplate.
  4. While grasping the handle on the PSM faceplate with one hand, use your other hand to guide the PSM away from the chassis.
  5. Pull the PSM straight out of the chassis.
    Warning:

    Do not touch the power connectors on back of the PSM. They can get damaged.

  6. Place the PSM module into an antistatic bag.
    Note:

    Each PSM slot not occupied by a DC PSM must be covered by a PSM blank panel.

Figure 1: Removing a DC Power Supply Module from the MX2010 RouterRemoving a DC Power Supply Module from the MX2010 Router

See Also

Installing an MX2010 DC Power Supply Module (-48 V)

Before you install a PSM, be aware of the following:

Note:

The DC PSM is hot-swappable when a minimum number of PSMs installed and operational.

Warning:

The DC PSMs have no circuit breakers that can physically disconnect DC line from the router. After DC feeds have been connected to the PDM, the DC voltage is always present on the power midplane and is distributed to the PSM connectors on the power midplane.

CAUTION:

To maintain proper cooling and prevent thermal shutdown of the operating PSM, each PSM slot must contain either a PSM or a blank panel. If you remove a PSM, you must install a replacement PSM or a blank panel shortly after the removal.

Note:

After powering on a PSM, wait at least 60 seconds before turning it back off.

To install a DC PSM (see Figure 2):

  1. With one PSM installed and operational, install an additional PSM with the power supply switch in the off (O) or in the on (|) position.
    CAUTION:

    If there is only one PSM installed and operational, the power supply switch must be placed in the off (O) position.

  2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  3. While grasping the handle on the PSM faceplate with one hand, use your other hand to guide the power supply module into the chassis.
  4. Tighten the captive screws on the PSM faceplate.
  5. Turn on the power switch to the on (|) position.
  6. Verify that the PWR OK LED is lit steadily green.
Figure 2: Installing a DC Power Supply ModuleInstalling a DC Power Supply Module

See Also

Related Documentation