Site Planning Checklist; Environmental Requirements; Airflow Guidelines - Cisco NCS 540 Prepare For Installation

Site Planning Checklist

Site Planning Checklist
Use the following checklist to carry out all site planning tasks:
• The site meets environmental requirements.
• The site's air conditioning system can compensate for the heat dissipation of the chassis.
• The floor space that the chassis occupies can support the weight of the system.
• Electrical service to the site complies with the safety with electricity requirements.
• The electrical circuit servicing the chassis complies with the power supply requirements.
• Console port wiring and cabling limitations have been considered in accordance to TIA/EIA-232F.
• The chassis Ethernet cabling distances are within prescribed limits.
• The equipment rack where the chassis is to be installed complies with prescribed requirements.
• The following factors have been carefully considered when selecting rack: location, safety, ease of

Environmental Requirements

Environmental monitoring of the chassis protects the system and components from damage due to excessive
voltage and temperature conditions. To ensure normal operation and avoid unnecessary maintenance, plan
and prepare your site configuration before installation. After installation, ensure that the environmental
characteristics continue to be met.
For an outside plant installation (cell site cabinet, hut, and so on), you're required to protect the chassis against
airborne contaminants, dust, moisture, insects, pests, corrosive gases, polluted air, or other reactive elements.
We recommend that you install the unit in a fully sealed enclosure or cabinet. Examples of such cabinets
include IP65 cabinets with heat exchanger complying with Telcordia GR487. Temperature must be maintained
within –40ºC to 65ºC. This is applicable to Cisco N540X-6Z18G-SYS-A/D, N540X-8Z16G-SYS-A/D, and
N540X-4Z14G2Q-A/D router variants.
Cisco N540-6Z18G-SYS-A/D router supports operational temperature of 0 to 50ºC.
Place the device inside a space that is protected from direct weather and environmental stresses by an enclosure.

Airflow Guidelines

Cool air is circulated through the router by fans that are located along the left side of the router. The internal
fans maintain acceptable operating temperatures for the internal components by drawing in cool air through
the vents, and circulating the air through the router.
To ensure adequate airflow, we recommend that you always maintain this minimum clearance distance as
mentioned in the following figure.
• Front clearance—5 inches (12.7 centimeters)
• Rear clearance—0.5 inches (1.27 centimeters)
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maintenance, and proper airflow.
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