Cisco ASR 9000 Series Manuel de référence rapide - Page 7

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Cisco ASR 9000 Series

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Grounding

Corrosion

Grounding

Ensure that all equipment racks are grounded to the building. Otherwise, it can pose a serious safety risk to personnel.

Additionally, an electrical current can cause operational deficiencies or expose the networking equipment to the risk of permanent

failure due to ESD risks.

Verify the effectiveness of a good ground connection using a multimeter. The multimeter readings should display less than 1 Ohm

for good point-to-point resistivity.

For more details on grounding, click here.

Corrosion

Over a period of time, corrosion can degrade the performance of the components. It leads to blocked currents, brittle connection

points, and overheated electrical systems. As chemical reactions continue, the corrosion by-products form insulating layers on

circuits, and they usually cause electronic failure, short circuits, pitting, and metal loss. Therefore, ensure that the maximum

concentration of contaminants for indoor installation does not exceed the prescribed limit.

Avoid touching contacts on modules and protect the equipment from extreme temperatures and moist, salty environments. Monitor

the environmental factors that impact the corrosion rate: ambient pressure, humidity, and temperature. Whenever possible, ensure

that the installation site is fully air conditioned to ensure that the environmental factors are under control.

Install real-time corrosion measurement systems. Corrosion monitors enable you to take preventive action before serious

damage occurs.

The use of HEPA filters is advised to maintain clean air circulation systems.

Avoid using direct air cooling on the product (network equipment).

Maintenance Best Practices