Juniper JRR200, Руководство по оборудованию

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JRR200 Route Reflector Air Flow and Cooling System
The cooling system for the JRR200 Route Reflector consists of four fan trays located at
the rear of the chassis. Each fan tray contains two fans, so there are a total of eight fans.
The fans draw cool air through vents on the front of the chassis and exhaust the air
through the back of the chassis. See
Figure 5 on page 22 . The airflow produced by the
fans keeps device components within the acceptable temperature range.
If any one of the four fan trays fails, the JRR200 route reflector generates a warning but
keeps the system running. If the temperature keeps rising, the JRR200 route reflector
lowers the power consumption by reducing the performance or shutting down some of
the chassis components. However, if the ambient maximum temperature exceeds the
warning level and the system cannot be adequately cooled, then the JRR200 route
reflector shuts down the system and hardware components completely.
The fan tray is a field-replaceable unit (FRU)and you can install it without powering off
the JRR200 route reflector or disrupting the route reflector function.
Figure 5: Airflow Through the Chassis
JRR200 Power System
•
JRR200 Route Reflector AC Power Supply on page 23
• JRR200 Route Reflector AC Power Supply Specifications on page 24
• JRR200 Route Reflector AC Power Cord Specifications on page 25
•
JRR200 Route Reflector DC Power Supply on page 26
•
JRR200 Route Reflector DC Power Supply Specifications on page 27
Copyright © 2018, Juniper Networks, Inc. 22
JRR200 Route Reflector Hardware Guide