Cisco Systems CISCO7201 Manual De Usuario

When you plan the location and layout of your equipment rack or wiring closet, you need to consider 
how air flows through your router. The Cisco 7201 router draws cooling air in through the intake vents 
on the front of the chassis and moves the air across the internal components and out the exhaust vents 
on the rear of the chassis. 

 shows airflow through the router.

Temperature sensors on the system board monitor the internal air temperature and send warning 
messages when the internal air temperature approaches a specified threshold. If the internal temperature 
exceeds the specified threshold, the system environmental monitor shuts down all internal power to 
prevent equipment damage from excessive heat. (See the 

 for temperature threshold information.)

This section explains how to install a Cisco 7201 router in a general tabletop or workbench installation 
and in a rack, and how to attach I/O, port adapter, and power cables. This section contains the following 
topics:

The router should already be in the area where you will install it, and your installation location should 
already be determined. If not, see the 

and the 

When installing a Cisco 7201 router on a workbench or tabletop, ensure that the surface is clean and in 
a safe location and that you have considered the following:

The router requires at least 3 inches (7.62 cm) of clearance at the inlet and exhaust vents (the front 
and back sides of the router).

The router should be installed off the floor. (Dust that accumulates on the floor is drawn into the 
interior of the router by the cooling fans. Excessive dust inside the router can cause overtemperature 
conditions and component failures.)

There must be approximately 19 inches (48.26 cm) of clearance at the front and rear of the router 
for installing and replacing router parts—such as the port adapter, SFP module, USB module, or 
CompactFlash Disk—or accessing network cables or equipment. 

A port adapter blank panel is installed if a port adapter or service adapter is not in place.

The router will receive adequate ventilation (it is not being installed in an enclosed cabinet where 
ventilation is inadequate).

If you plan to install the cable-management bracket, unpack and have handy the cable-management 
bracket and one M4 x 20-mm screw.

An adequate chassis ground (earth) connection exists for your router chassis.