Field-Replaceable Units In Acx5400 Routers - Juniper ACX5448-D Hardware Manual

Table 5: ACX5448-M Router Model Numbers and Description (continued)
Model Number
ACX5448-M-DC-AFO
CAUTION:
different airflow modules (AFI and AFO) in the same chassis.

Field-Replaceable Units in ACX5400 Routers

Field-replaceable units (FRUs) are components that you can replace at your site. The ACX5400 FRUs are
hot-insertable and hot-removable: you can remove and replace them without powering off the router or
disrupting the routing function.
The following are the ACX5400 FRUs:
Power supply modules (PSMs)
Fan modules
Optical transceivers
CAUTION:
prevent chassis overheating. The router continues to operate with only one PSM
running. Replace a failed fan module with a new fan module within one minute of
removal to prevent chassis overheating. Do not operate the router with missing FRUs
for longer than one minute.
NOTE: If you have a Juniper J-Care service contract, register any addition, change, or upgrade
of hardware components at
https://www.juniper.net/customers/csc/management/updateinstallbase.jsp. Failure to do so
can result in significant delays if you need replacement parts. This note does not apply if you
replace existing components with the same type of component.
Do not mix different types (AC and DC) of power supply modules and
Replace a failed PSM with a new PSM within one minute of removal to
Power Supply Airflow
DC Airflow out (front-to-back)
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