M120 Dc Power Supply Description; Figure 15: M120 Dc Power Supply - Juniper M120 Hardware Manual

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M120 DC Power Supply Description

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Copyright © 2010, Juniper Networks, Inc.
M120 Router Power Requirements on page 237
Connecting Power to an AC-Powered M120 Router on page 89
Maintaining the M120 Power Supplies on page 115
Replacing an M120 AC Power Supply on page 173
M120 AC Power, Connection, and Power Cord Specifications on page 231
In the DC power configuration, the router contains two DC power supplies (see Figure 15
on page 31), located in the right rear of the chassis in slots
A single DC power supply provides sufficient power for a fully configured router.
Two DC power supplies share power almost equally within a fully populated system. If
either power supply fails, the remaining power supply takes over without interruption.
Each DC power supply has a single DC input (–48 VDC and return) that requires a
dedicated 60 A (–48 VDC) circuit breaker for the maximum router hardware configuration.
.

Figure 15: M120 DC Power Supply

M120 DC Power Supply LEDs on page 32
M120 Router Power Requirements on page 237
Connecting Power to a DC-Powered M120 Router on page 91
Maintaining the M120 Power Supplies on page 115
Replacing an M120 DC Power Supply on page 177
M120 DC Power, Connection, and Cable Specifications on page 234
Chapter 2: M120 Hardware Components
and (left to right).
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