Ptx10003 Chassis Airflow - Juniper PTX10003-80C Hardware Manual

Figure 13: PTX10003 Fan Module
Serial number
ID label
You remove and replace a fan module from the FRU end of the chassis. The router continues to operate
for a limited period of time (30 seconds) during the replacement of the fan module without thermal
shutdown.
NOTE: All fan modules must be installed for optimal operation of the router.
NOTE: If a fan module fails and the remaining fan modules are unable to keep the PTX10003
within the desired temperature thresholds, chassis alarms are raised and the PTX10003 might shut
down.
SEE ALSO
Maintaining the PTX10003 Fan Modules | 131

PTX10003 Chassis Airflow

In data center deployments, position the router in such a manner that the AIR OUT labels on router
components are next to the hot aisle. Figure 14 on page 48 shows the airflow through the chassis.
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