Figure 128: M10I Router Power Supplies - Juniper M Series Monitoring And Troubleshooting Manual

Figure 128: M10i Router Power Supplies

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M20 Router Power Supplies
Copyright © 2012, Juniper Networks, Inc.
The DC power supplies are fully redundant. The DC power supplies in slots
can provide full power to the router. Likewise, the DC power supplies in slots
P/S 1
and P/S 3 can also provide full power. The DC power supplies in slots
jointly serve as the backup to the DC power supplies in slots
supplies must be present in slots
NOTE: AC and DC power supplies are required in slots
the router to operate.
The DC power supplies in slots
power feeds derived from feed A, and the DC power supplies in slots
and P/S 3 must be powered by dedicated power feeds derived from feed B.
This configuration provides the commonly deployed
for the system.
Checklist for Monitoring Power Supplies on page 273
Two load-sharing, isolated power supplies are located at the bottom rear of the M20
router chassis.The router uses either AC or DC power.
M20 router power supplies and where they are installed in the chassis.
When the power supplies are installed and operational, they automatically share the
electrical load. If a power supply stops functioning for any reason, the remaining power
supplies instantly begin providing all the power the router needs for normal functioning,
and can provide full power indefinitely.
Chapter 10: Monitoring Power Supplies
and for the router to operate.
P/S 0 P/S 1
and must be powered by dedicated
P/S 0 P/S 1
Figure 129 on page 280
and
P/S 0
P/S 2
P/S 2 and P/S 3
and . Power
P/S 0 P/S 1
and for
P/S 0 P/S 1
P/S 2
feed redundancy
A/B
shows the
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