Table 32: Power Zone 2 Fault Tolerance - Juniper PTX5000 Hardware Manual

Table 31: Power Zone 1 Fault Tolerance (continued)
Nonredundant Configuration
If the nonredundant PSM in this zone fails, the
craft interface, host subsystems. CCGs, and
SIBs are powered off.

Table 32: Power Zone 2 Fault Tolerance

Number of Nonredundant
FPCs Configuration
Up to four FPCs One
PSM2
either PDU can provide
The PSMs must
nonredundant power.
be in different
PDUs for full and
PSM2
power
same PDU are
redundancy. nonredundant.
Five to eight Two PSMs, one in each
FPCs PDU can provide
nonredundant power.
and
PSM2
same PDU is
nonredundant.
CAUTION:
are nonredundant.
Related
Documentation
Copyright © 2017, Juniper Networks, Inc.
Redundant Configuration
PDU0
If in
PSM1 PDU0
CCGs, and SIBs are powered off.
Redundant Configuration
PDU0
or in Two PSMs in this zone are required for
PSM3
full power redundancy.
One or
PSM2
in the in and fully functional.
PSM3 PDU0
If PSM2 or PSM3
off or fails, the configuration becomes
nonredundant.
All four PSMs in this zone are required
for full power redundancy.
and
PSM2 PSM3
in the present and fully functional.
PSM3
If PSM2 or PSM3
off or fails, the configuration becomes
Three PSMs
nonredundant.
If all four PSMs in this zone fail, all FPCs are powered off.
PTX5000 Hardware Component Overview on page 5
PTX5000 Power Distribution Unit LEDs on page 56
PTX5000 Power Supply Module LEDs on page 66
Maintaining the PTX5000 Power System on page 492
Troubleshooting the PTX5000 Power System on page 535
Chapter 4: Power System Components and Descriptions
PDU1
and in both fail, the craft interface, host subsystems,
PSM1 PDU1
PDU1
Two PSMs in this zone are required for
full power redundancy.
must be installed One
PSM3
in
in PDU0 is powered If
or fails, the configuration becomes
nonredundant.
All four PSMs in this zone are required
for full power redundancy.
in must be
PDU0 PSM2
present and fully functional.
in PDU0 is powered If
off or fails, the configuration becomes
nonredundant.
or must be installed
PSM2 PSM3
and fully functional.
PDU1
PSM2 or PSM3 in PDU1 is powered off
and in must also be
PSM3 PDU1
PSM2 or PSM3 in PDU0 is powered
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