Feature Design Details
78-4025112-01 Rev H0
153
Feature Design Details
When Smart Fan Control changes to "Enable" there will be a 30 second delay before
changing the FAN Speed to avoid any FAN related alarms.
Disabling the Smart Fan Control will make all fans operate at full speed
immediately.
This feature flag is unit specific and will not be carried forward to other units when
using the backup configuration file.
Based on the temperature, the fan control settings will vary from 150<->175<->255.
GUI logs indicate these changes.
Fan Control Settings
Highest Temperature (in Centigrade)
150
< 65
175
> = 65 and < 74
255
> = 74
During RFGW-1 boot up, the fan will run at full speed (setting 255) for at least 5
minutes. This allows the boot process to be complete and the RFGW-1 to be
configured completely.
Temperature readings are taken every 10 seconds from various measuring points.
Out of these readings, the highest temperature will be recorded.
If temperature increases, the fan speed will increase immediately to the specified
setting (see above).
Lowering the fan speed will be applied after 10 minutes from the point of increase in
fan speed. This design is intended to reduce toggling of the fan speed thereby
increasing the life of the fan.
Alarms will be raised based on the speed/rpm out of tolerance (existing design)
When there is any fan failure or fan running at a very low speed, the software will
kick start all the fans at full speed (255).
There are fail safe mechanisms in place when the software fails/hangs.
Summary of Contents for RF Gateway 1 Modules
Page 1: ...78 4025112 01 R ev H0 Cisco RF Gateway 1 Configuration Guide ...
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Page 10: ...Contents viii 78 4025112 01 Rev H0 Electrical GbE SFP Transceiver 254 Glossary 255 Index 259 ...
Page 20: ...Important Safety Instructions xviii 78 4025112 01 Rev H0 ...
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