Juniper PTX5000 Hardware Manual page 202

Table 67: Components Powered by Each Zone
Zone PSM Component
1 1 The craft interface and the following components installed in the rear card cage: Routing Engines,
Control Boards, CCGs, and SIBs.
•
Channel 1: Routing Engines and Control Boards
•
Channel 2: SIBs, CCGs, and craft interface
2 2 Any four FPCs in slots FPC0 through FPC7
3 Any four FPCs in slots FPC0 through FPC7
Table 68: Power Zone 0 Fault Tolerance
Nonredundant Configuration
One PSM0 in either PDU can
provide power to all fan trays.
If the nonredundant PSM in this
zone is not powered on, the fan
trays are not powered on, and the
PTX5000 will not be powered on.
If the nonredundant PSM in this
zone fails, the fan trays are not
powered on, which will cause the
PTX5000 to be powered off.
(Continued)
Redundant Configuration
PDU0
PSM0 is required for full power
redundancy.
If PSM0 in PDU0 is powered off or
fails, the configuration becomes
nonredundant.
If neither PSM in this zone is powered on, the fan trays are not powered on,
and the PTX5000 will not be powered on.
If both PSMs in this zone fail, the fan trays are not powered on, which will
cause the PTX5000 to be powered off.
PDU1
PSM0 is required for full power
redundancy.
If PSM0 in PDU1 is powered off or
fails, the configuration becomes
nonredundant.
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