Juniper JUNOS - NETWORK OPERATION GUIDE REV1 - Page 283

Getting Power Supply Hardware Information ! 247
Chapter 18: Monitoring Power Supplies
Figure 100 shows the location of the AC power supply serial number ID label for an
M40e router. The label is located at the upper center of the faceplate.
Figure 100: M40e Router AC Power Supply Serial Number ID Label
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Serial number ID label