Floor Loading Considerations; Site Power Guidelines - Cisco NCS 540 Installation Manual

Small density passive cooled routers

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Floor Loading Considerations

• In the vertical mounting orientation, 60% rack space must be open at top of the product, while sides must

• If any port (RJ-45, SFP, or USB) is not used, it is recommended that such ports be covered by using the

Figure 4: Dust Caps

Floor Loading Considerations

Ensure that the floor under the rack supporting the routers is capable of supporting the combined weight of

the rack and all the other installed equipment.

To assess the weight of a fully configured routers, see the Cisco Network Convergence System 540 Small

Density Passive Cooled Routers Datasheet.

For additional information about floor loading requirements, see the GR-63-CORE, Network Equipment

Building System (NEBS) Requirements: Physical Protection document (www.telecom-info.telcordia.com).

The router has specific power and electrical wiring requirements. Adhering to these requirements ensures

reliable operation of the system. Follow these precautions and recommendations when planning your site

power for the router:

• The redundant power option provides a second, identical power supply to ensure that power to the chassis

• Connect each of the two power supplies to a separate input power source. If you fail to do this, your

• To prevent a loss of input power, be sure that the total maximum load on each circuit supplying the power

• Check the power at your site before installation, and periodically after installation to ensure that you are

Cisco Network Convergence System 540 Passive Cooled Small Density Routers Hardware Installation Guide

be free from any airflow obstructions.

dust caps that came with the product.

continues uninterrupted if one power supply fails or input power on one line fails.

system might be susceptible to total power failure due to a fault in the external wiring or a tripped circuit

breaker.

supplies is within the current ratings of the wiring and the breakers.

receiving clean power. Install a power conditioner, if necessary.

Preparing for Installation

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