Cisco Systems ASR1000 Manual De Usuario

 is provided to help you perform and account for all the site planning tasks presented in this 

appendix.

Electrostatic discharge (ESD) damage, occurs when electronic cards or components are improperly 
handled and can result in complete or intermittent failures. The performance routing engine (PRE), and 
all line cards consist of a printed circuit card that is fixed in a metal carrier. Electromagnetic interference 
(EMI) shielding and connectors are integral components of the carrier. Although the metal carrier helps 
to protect the cards from ESD, use an antistatic strap each time you handle the modules. Handle the 
carriers by the edges only; never touch the cards or connector pins.

Always tighten the captive installation screws on all system components when you are installing them. 
These screws prevent accidental removal of the module, provide proper grounding for the system, and 
help to ensure that the bus connectors are properly seated in the backplane.

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 an 
microprocessor. As you continue to work on your system, periodically touch an unpainted metal surface 
on the computer chassis. 

Following are guidelines for preventing ESD damage:

Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. 
Before removing a card from the chassis, connect the equipment end of the strap to the ESD plug at 
the bottom of the chassis below the power entry modules (

The site meets the environmental requirements. 

The site’s air conditioning system can compensate for the heat dissipation of the Cisco ASR 
1000 Series. 

The floor space that the Cisco ASR 1000 Series Routers occupy can support the weight of 
the system).

Electrical service to the site complies with the requirements.

The electrical circuit servicing the Cisco ASR 1000 Series complies with the requirements).

Consideration has been given to the console port wiring, and limitations of the cabling 
involved, according to TIA/EIA-232F. 

The Cisco 1000 Series Router Ethernet cabling distances are within limitations. 

The equipment rack in which you plan to install the Cisco ASR 1000 Series chassis complies 
with requirements. 

Careful consideration has be given to safety, ease of maintenance, and proper airflow in 
selecting the location of the rack.