Site Selection Guidelines; Environmental Requirements; Physical Characteristics; Air Flow Guidelines - Cisco NCS 4201 Hardware Installation Manual

Site Selection Guidelines

• The electrical circuit servicing the Cisco NCS 4201 complies with the requirements.
• Consideration has been given to the console port wiring and limitations of the cabling involved, according
• The Cisco NCS 4201 Ethernet cabling distances are within the prescribed limitations.
• The equipment rack in which you plan to install the Cisco NCS 4201 complies with prescribed
• When selecting the location of the rack, careful consideration must be given to safety, ease of maintenance,
Site Selection Guidelines
The Cisco NCS 4201 require specific environmental operating conditions. Temperature, humidity, altitude,
and vibration can affect the performance and reliability of the chassis. The following sections provide specific
information to help you plan for the proper operating environment.
The Cisco NCS 4201 are designed to meet the industry EMC, safety, and environmental standards described
in the Regulatory Compliance and Safety Information for the Cisco NCS 4200 Series document.

Environmental Requirements

Environmental monitoring of the Cisco NCS 4201 protects the system and components from damage caused
by excessive voltage and temperature conditions. To ensure normal operation and avoid unnecessary
maintenance, plan and prepare your site configuration before installation. After installation, make sure that
the site maintains the environmental characteristics described in table Cisco NCS 4201 Specifications.
For an outside plant installation (cell site cabinet, hut etc.), it is required that the Cisco NCS 4201 be protected
against airborne contaminants, dust, moisture, insects, pests, corrosive gases, polluted air or other reactive
elements present in the outside air. To achieve this level of protection, we recommend that the unit be installed
in a fully sealed enclosure or cabinet. Examples of such cabinets include IP65 cabinets with heat exchanger
complying with Telecordia GR487. Temperature must be maintained within –40 C to 70 C.
The equipment shall be placed inside a space protected from direct outside weather and environmental stresses
by an enclosure, and where the operating climate, as defined by Class 2 of GR-3108-CORE, is between
• -40C (-40 F) and 70 C (158 F)
• 5 and 85% RH.

Physical Characteristics

Be familiar with the physical characteristics of the Cisco NCS 4201 to assist you in placing the system in the
proper location. For more information, see table Cisco NCS 4201 Specifications.

Air Flow Guidelines

Cool air is circulated through the Cisco NCS 4201 by fans located along the back side of the chassis.
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 chassis.
The direction of air flow is from front-to-back.
The figure below shows the direction of the air flow through the Cisco NCS 4201.
Cisco NCS 4201 Hardware Installation Guide
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to TIA/EIA-232F.
requirements.
and proper airflow.
Preparing for Installation