NETGEAR GSM4248PX Hardware Installation Manual page 40

Table 9. Fan operation properties for the 8-port PoE+ and PoE++ models (Continued)
Fan Mode
Quiet mode with fan use from 25 – 100% (20 – 100% for model M4250-10G2XF-PoE++)
Temp. sensor
PoE budget
Load
Fan use
Cool mode with maximum cooling
Fan use
Example of intelligent fan operation:
If the fans of model M4250-10G2F-PoE+ operate in Off mode and either the temperature
detected by the temperature sensor exceeds 93F (34C) or the PoE budget exceeds
80W, the switch automatically places the fans in Quiet mode.
Note: In Quiet mode, the fans can temporarily operate at 100 percent speed.
The following table describes the fan operation messages that the switch records in its
logs if a temperature threshold is exceeded and the action that occurs if a critical
temperature level is exceeded. (The temperatures in Fahrenheit are rounded down.)
Table 10. Fan operation messages recorded in the log and action if a critical temperature level is exceeded
Message and Action
Warning
Critical
Shutdown
Temporary shutdown action
Note: A shutdown action does not shut down the switch but limits the operation of the
switch. PoE is disabled and the fans are placed in Cool mode. To return the switch to
normal operation, you must restart the switch.
Hardware Overview
AV Line of Fully Managed Switches M4250 Series
M4250-10G2F-PoE+
≥ 93F (34C)
≤ 125W
Full traffic load
≥ 25 – 100%
100%
M4250-10G2F-PoE+
≥ 113F (45C)
≥ 118F (48C)
≥ 127F (53C)
PoE is disabled.
The fans are placed in
Cool mode.
M4250-10G2XF-PoE+
≥ 93F (34C)
≤ 240W
Full traffic load
≥ 25 – 100%
100%
M4250-10G2XF-PoE+
≥ 114F (46C)
≥ 120F (49C)
≥ 127F (53C)
PoE is disabled.
The fans are placed in
Cool mode.
40
M4250-10G2XF-PoE++
≥ 100F (38C)
200W – 720W
Full traffic load
≥ 20 – 100%
100%
M4250-10G2XF-PoE++
≥ 141F (61C)
≥ 145F (63C)
≥ 156F (69C)
PoE is disabled.
The fans are placed in
Cool mode.
Hardware Installation Guide