Locating for Easy Maintenance
Keep at least 3 feet of clear space in front of and behind the rack. This space ensures that you can remove the
Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router components and perform routine maintenance
and upgrades easily.
Avoid installing the Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router in a congested rack and
consider how the routing of cables from other pieces of equipment in the same rack might affect access to the
routers cards.
The front and top of the chassis must remain unobstructed to ensure adequate airflow and prevent overheating
inside the chassis.
Allow the following clearances for normal system maintenance:
•
At the top of the chassis
—
At least 3 in. (7.6 cm)
•
In front of the chassis
—
3 to 4 ft (91.44 cm to 121.92 cm)
To avoid problems during installation and ongoing operation, follow these general precautions when you plan
the equipment locations and connections:
•
Use the
show environment all
and the
show facility-alarm status
commands regularly to check the
internal system status. The environmental monitor continually checks the interior chassis environment;
it provides warnings for high temperature and creates reports on any occurrences. If warning messages
are displayed, take immediate action to identify the cause and correct the problem. For more information
on these commands, see the "
Environmental Monitoring and Reporting Functions
" section.
•
Keep the Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router off the floor and out of the areas
that collect dust.
•
Follow ESD-prevention procedures to avoid damage to equipment. Damage from static discharge can
cause immediate or intermittent equipment failure.
Locating for Proper Airflow
Ensure that the location of the Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router has enough
airflow to keep the system operating within the environmental characteristics, and the air temperature is
sufficient to compensate for the heat dissipated by the system.
Avoid locating the Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router in a location in which the
chassis air intake vents could draw in the exhaust air from adjacent equipment. Consider how the air flows
through the router. The airflow direction is front to back with ambient air drawn in from the venting located
on the chassis
’
front sides.
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) damage occurs when electronic cards or components are improperly handled
resulting in complete or intermittent failures. Static electricity can harm delicate components inside your
system. To prevent static damage, discharge static electricity from your body before you touch any of your
system components, such as a microprocessor. As you continue to work on your system, periodically touch
an unpainted metal surface on the computer chassis.
The following are guidelines for preventing ESD damage:
Cisco ASR 1001-HX Router and Cisco ASR 1002-HX Router Hardware Installation Guide
43
Preparing Your Site for Installation
Preventing Electrostatic Discharge Damage
