NETGEAR M4250-10G2XF-PoE++ Hardware Installation Manual page 44

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 14. Fan operation messages recorded in the log and action if a critical temperature level is exceeded
Message and Action
Warning
Temp. sensor 1 or
Temp. sensor 2
Critical
Temp. sensor 1 or
Temp. sensor 2
Shutdown
Temp. sensor 1 or
Temp. sensor 2
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
M4250-40G8F-PoE+
≥ 125F (52C)
≥ 140F (60C)
≥ 132F (56C)
≥ 147F (64C)
≥ 140F (60C)
≥ 154F (68C)
PoE is disabled.
The fans are placed in
Cool mode.
M4250-40G8XF-PoE+
≥ 120F (49C)
≥ 138F (59C)
≥ 125F (52C)
≥ 141F (61C)
≥ 131F (55C)
≥ 145F (63C)
PoE is disabled.
The fans are placed in
Cool mode.
44
M4250-40G8XF-PoE++
≥ 122F (50C)
≥ 134F (57C)
≥ 125F (52C)
≥ 136F (58C)
≥ 129F (54C)
≥ 140F (60C)
PoE is disabled.
The fans are placed in
Cool mode.
Hardware Installation Guide