Mx960 Dc Power Supply; Figure 36: Dc Power Supply; Table 57: Minimum Required Number Of Dc Power Supplies - Juniper MX960 Hardware Manual

MX960 3D Universal Edge Router Hardware Guide

MX960 DC Power Supply

Table 57: Minimum Required Number of DC Power Supplies

Router Model Configuration
MX960 High-capacity DC
MX960 Normal-capacity DC
104
In the DC power configuration, the router contains either two or four DC power supplies
(see Figure 36 on page 104), located at the lower rear of the chassis in slots
through (left to right). You can upgrade your DC power system from two to four
PEM3
power supplies. The DC power supplies in slots
lower fan tray, DPC slots
6
slots and provide power to the upper fan tray, DPC slots
PEM1 PEM3
SCB slot 0 .
Four power supplies provide full redundancy. If a DC power supply fails, its redundant
power supply takes over without interruption.
For existing power supplies, each DC power supply has a single DC input (–48 VDC and
return). For high-capacity power supplies, each DC power supply has two DC inputs (–48
VDC and return).
The minimum number of power supplies must be present in the router at all times. See
Table 57 on page 104 for the minimum required number of power supplies.
Minimum Required Number of Power
Supplies
One per zone x two zones = 2 power
supplies
2

Figure 36: DC Power Supply

PEM0
through , and SCB slots
11 1
PEM0
and PEM2 provide power to the
and . The DC power supplies in
2
through
0 5
Model Number
PWR-MX960-4100-DC
PWR-MX960-DC
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