CHAPTER 5
Cooling System Description
•
SRX650 Services Gateway Cooling System on page 31
SRX650 Services Gateway Cooling System
The fan controller is the cooling system component provided in the SRX650 Services
Gateway to keep all components within the acceptable temperature range.
The services gateway has a single fan tray that contains four 80 mm fans.
The fan controller constantly monitors the temperature of the services gateway and all
modules (SRE or GPIMs) installed in the device at any given time. Under normal operating
conditions, the fans function at lower than full speed.
If any one of the four fans fails, the services gateway generates a warning but keeps the
system running. If the temperature keeps rising, the services gateway lowers the power
consumption by reducing the performance or shutting down some of the chassis
components. However, if the ambient maximum temperature specification exceeds the
warning limit and the system cannot be adequately cooled, then the services gateway
shuts down the system and hardware components completely.
Related
Documentation
• SRX650 Services Gateway Chassis on page 17
• SRX650 Services Gateway Front Panel on page 18
• SRX650 Services Gateway Back Panel on page 24
• SRX650 Services Gateway Power Supply on page 33
31Copyright © 2018, Juniper Networks, Inc.
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