Chapter 2 Preparing for Installation
Site Requirement Guidelines
•Unrestricted air flow—Allow sufficient air flow by maintaining a minimum of 6 inches (15.24 cm) of clearance at both the inlet and exhaust openings on the chassis and the power modules. If the air flow is blocked or restricted, or if the inlet air is too warm, an overtemperature condition can occur within the router. Under extreme conditions, the environmental monitoring system powers off the router to protect the components.
Temperature and Humidity Guidelines
The operating and nonoperating environmental site requirements are listed in Table A-4 on page A-5. The router normally operates within the ranges listed in Table A-4, however, if a temperature measurement is approaching a minimum or maximum parameter it indicates a potential problem. Maintain normal operation by anticipating and correcting environmental anomalies before they approach critical values by properly planning and preparing your site before you install the router.
Power Connection Guidelines
You can configure the router with either an AC-input or DC-input power subsystem, so the site power source requirements differ depending on the power subsystem in your router. Ensure all power connection wiring conforms to the rules and regulations in the National Electrical Code (NEC), as well as local codes.
Caution Proper grounding is necessary to avoid damage from lightning and power surges. See the “NEBS Supplemental Unit Bonding and Grounding Guidelines” section on page 2-18for grounding requirements.
| | Cisco XR 12410 Router Installation Guide | | |
| | |
| OL-13832-01 | | | 2-13 |
| | |
