Installing An Mx2020 Ac Power Supply Module; Figure 140: Removing An Ac Power Supply Module From The Mx2020 Router - Juniper MX2020 Hardware Manual
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Copyright © 2013, Juniper Networks, Inc.
Figure 140: Removing an AC Power Supply Module from the MX2020
Router
Installing an MX2020 AC Power Supply Module
Before you install a PSM, be aware of the following:
NOTE:
The AC PSM is hot-swappable when a minimum number of PSMs
installed and operational.
WARNING:
The AC PSMs have no circuit breakers that can physically
disconnect AC line from the router. After AC feeds have been connected to
the PDM, the AC 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.
Chapter 13: Replacing MX2020 Router Hardware Components
303
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