Figure 22: Fan Controller JNP10008-FTC2
WARNING: Do not mix the fan tray controller models. Use only the supported fan model
for each fan tray controller.
The system continually monitors the temperature of critical parts across the chassis and adjusts the chassis
fan speed according to the temperature.
Software controls the fan speed. Under normal operating conditions, the fans in the fan tray run at less
than full speed. If one fan tray controller fails or appears missing (such as when a SIB is being replaced)
the other fan tray controller sets the fans to full speed. This allows the router to continue to operate
normally as long as the remaining fans cool the chassis sufficiently. Use the show chassis fan command
to see the status of individual fans and fan speed. The following example shows the fan status for a system
running JNP1008-FAN and JNP10008-FAN-CTRL:
user@system> show chassis fan
Item Status RPM Measurement
Fan Tray 0 Fan 0 OK 6300 Spinning at normal speed
Fan Tray 0 Fan 1 OK 6150 Spinning at normal speed
Fan Tray 0 Fan 2 OK 6300 Spinning at normal speed
Fan Tray 0 Fan 3 OK 6300 Spinning at normal speed
Fan Tray 0 Fan 4 OK 6150 Spinning at normal speed
Fan Tray 0 Fan 5 OK 6000 Spinning at normal speed
Fan Tray 0 Fan 6 OK 6150 Spinning at normal speed
Fan Tray 0 Fan 7 OK 6150 Spinning at normal speed
Fan Tray 0 Fan 8 OK 6150 Spinning at normal speed
Fan Tray 0 Fan 9 OK 6300 Spinning at normal speed
Fan Tray 0 Fan 10 OK 6300 Spinning at normal speed
Fan Tray 1 Fan 0 OK 6300 Spinning at normal speed
Fan Tray 1 Fan 1 OK 6150 Spinning at normal speed
Fan Tray 1 Fan 2 OK 6300 Spinning at normal speed
Fan Tray 1 Fan 3 OK 6150 Spinning at normal speed
Fan Tray 1 Fan 4 OK 6300 Spinning at normal speed
Fan Tray 1 Fan 5 OK 6300 Spinning at normal speed
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