SEE ALSO
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PTX1000 Hardware Component Overview
The PTX1000 supports the components in Table 4 on page 21 listed in alphabetic order. See “PTX1000
Physical Specifications” on page 55 for the dimensions and weight of the PTX1000.
Table 4: PTX1000 Hardware Components
DescriptionCLI Output
Spare Juniper Model
NumberComponent
“PTX1000 Packet Transport Router
Description” on page 17
PTX1000PTX1000-72Q-CHAS-SChassis
“PTX1000 Cooling System Description”
on page 36
PTX1000 Fan TrayPTX1000-FAN-SFan module
“PTX1000 AC Power Supply
Description” on page 40
AC AFO 1600W PSUJPSU-1600W-AC-AFOPower supplies
“PTX1000 DC Power Supply
Description” on page 41
DC AFO 1600W PSUJPSU-1600W-DC-AFO
PTX1000 Component Redundancy
The following hardware components provide redundancy on PTX1000 models:
•
Cooling system—The PTX1000 has three fan modules. Each fan module is a redundant unit containing
two fans. If a fan module fails and the remaining fan modules are unable to keep the PTX1000 within
the desired temperature thresholds, chassis alarms are raised and the PTX1000 might shut down.
•
Power supplies—The PTX1000 is shipped with four power supplies. A PTX1000 provides for twice the
number of power supplies needed to power all the components in the router, which is known as 2N
redundancy. If one power supply fails or is removed, the remaining power supplies balance the electrical
load without interruption and still provide N + 1 redundancy while the failing power supply is replaced.
21
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