Table of Contents
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Chapter 2
Preparing for Installation
Temperature and Humidity Guidelines
Power Connection Guidelines
Caution
OL-13832-01
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.
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.
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.
Proper grounding is necessary to avoid damage from lightning and power surges.
See the
"NEBS Supplemental Unit Bonding and Grounding Guidelines" section
on page 2-18
for grounding requirements.
Site Requirement Guidelines
Cisco XR 12410 Router Installation Guide
2-13
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Troubleshooting
