Reinstalling the Power Supply Modules After Installing the MX2020 Router
To reinstall the AC or DC PSMs, follow this procedure for each PSM (see Figure 116 on page 281 and
Figure 117 on page 282: which shows the installation of the AC or DC PSM.
1. Remove the PSM to be installed out of the ESD bag, and identify the slot where it will be installed; 0
through 8 bottom, or 9 through 17 top.
NOTE: The MX2020 PSMs can be installed in any order in the chassis.
2. For an AC-powered router, move the AC power switch on the PSMs to the off (O) position. For a
DC-powered router, move the DC power switch on the PSMs to the off (O) position.
3. While holding the handle, using both hands, slide the PSM straight in until the PSM is fully seated into
the chassis slot.
4. The PSM faceplate should be flush with adjacent PSMs.
Figure 116: Reinstalling an AC Power Supply Module
281
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