Installing The Air Filter; Removing And Replacing The Fan Tray Assembly - Cisco 12404 Installation And Configuration Manual

Removing and Replacing the Fan Tray Assembly

Installing the Air Filter

Step 1
Timesaver
Step 2
Caution

Removing and Replacing the Fan Tray Assembly

Caution
Cisco 12404 Internet Router Installation and Configuration Guide
5-28
Instructions for installing the air filter in the air filter housing, at the left rear side
of the chassis, are presented in the following steps. Use
for installing the air filter.
Attach an ESD-preventive strap to your wrist or ankle; and attach the ESD clip to
the chassis or to a bare metal surface.
The arrows on the top edge of the air filter note the direction of air flow. Insert the
air filter into its housing with the arrows pointing toward the card cage.
Slide the air filter completely into the air filter housing.
Do not damage the air filter. Damage to the air filter can restrict the airflow, cause
an overtemperature condition in the router and degrade EMI performance.
The fan tray assembly supports online insertion and removal (OIR), so you can
remove and install the fan tray assembly while the system remains powered on
without presenting an electrical hazard or damage to the system. This feature lets
you replace the fan tray assembly while the system maintains all routing
information and ensures session preservation.
Although the fan tray assembly supports OIR and can be replaced without
interruption to system operation, do not operate the system without the fan tray
assembly for more than a few minutes to prevent overheating.
Chapter 5 Maintaining the Cisco 12404 Internet Router
Figure 5-15 as a reference
OL-11636-01