ERX 8.0.x Hardware Guide
Verify the operation of all telephone circuits, digital services, and T1 facilities required for installation.
Ensure that all IP environment requirements are met, such as IP addresses, subnet masks, and any specific routing protocol information.
Environmental Requirements
See “System Specifications” on page 119 for complete environmental specifications.
Choose a location for the router that is dry, relatively dust free, well ventilated, and air conditioned. If you install equipment in a rack, be sure that the floor is capable of supporting the combined weight of the rack and the installed equipment. Place the router in a location with sufficient access to power and network cables.
Like other network devices, the router generates a significant amount of heat. You must provide a balanced environment so that the router performs properly and safely. See “System Specifications” on page 119 for acceptable ranges of temperature and humidity.
Be sure to allow enough space around the router for adequate ventilation.
Inadequate ventilation can cause the system to overheat.
CAUTION: Do not block the air vents on the routers. Otherwise, the router might overheat.
Regulatory Compliances
See “System Specifications” on page 119, for a complete list of regulatory compliance requirements, including safety, EMC, and telecommunications.
Safety Guidelines
For your safety, before installing the system, review all safety warnings in this section.
WARNING: The recommended maximum ambient temperature is 50° C (122° F). For safe operation, take into consideration the internal temperature of the rack.
WARNING: Install equipment in the rack from the bottom upward. Doing this helps maintain the stability of the rack and reduces the chance of the rack tipping over.
130 
Safety Guidelines
