Site Selection Guidelines
The Cisco ASR 903 Router requires specific environmental operating conditions. Temperature, humidity,
altitude, and vibration can affect the performance and reliability of the router. The following sections provide
specific information to help you plan for the proper operating environment.
The Cisco ASR 903 Router is designed to meet the industry EMC, safety, and environmental standards
described in the Regulatory, Safety, and Compliance Information for the Cisco ASR 903 Router.
Environmental Requirements
The Cisco ASR 903 Router is Telcordia GR-3108-CORE Class-1 or GR-63-Core Indoor compliant.
Environmental monitoring in the Cisco ASR 903 Router 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 Cisco ASR 900 Series Aggregation Services
Routers Data Sheet.
For an outside plant installation (cell site cabinet, hut etc.), it is required that the Cisco ASR 903 Router 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 –40ºC to 65ºC
(depending upon which generation of RSP is used).
Physical Characteristics
Be familiar with the physical characteristics of the Cisco ASR 903 Router to assist you in placing the system
in the proper location. For more information, see the Cisco ASR 900 Series Aggregation Services Routers
Data Sheet.
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
64
Preparing for Installation
Site Selection Guidelines
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