manually controlling the fans, see the following manuals, which you can download by
visiting netgear.com/support/download:
•
Audio-video user manual
•
CLI reference manual
If the fans are functioning in Off mode (which you only can set manually and only on
certain models) or in Quiet mode, the switch automatically manages the fans and turns
on the fans or gradually increases the speed of the fans under the following conditions:
•
PoE+ and PoE++ models: Either the temperature detected by the temperature
sensor or sensors exceeds its threshold or a PoE budget is exceeded.
•
LED tiles model (M4250-12M2XF): Either the temperature detected by the
temperature sensor exceeds its threshold or the switch processes a full traffic load.
•
Aggregation model (M4250-16XF): Either the temperature detected by the
temperature sensor exceeds its threshold or the switch processes a full traffic load.
Fans for the 8-port PoE+ and PoE++ models
The following table describes the thresholds and operational properties of the fans for
the 8-port PoE+ and PoE++ models. (The temperatures in Fahrenheit are rounded
down.)
Table 9. Fan operation properties for the 8-port PoE+ and PoE++ models
M4250-10G2XF-PoE++M4250-10G2XF-PoE+M4250-10G2F-PoE+Fan Mode
Off mode
≤ 100F (38C)≤ 93F (34C)≤ 93F (34C)Temp. sensor
≤ 45W≤ 90W≤ 80WPoE budget
Full traffic loadFull traffic loadFull traffic loadLoad
OffOffOffFan use
Quiet mode with fan use below 25% (20% for model M4250-10G2XF-PoE++)
< 100F (38C)< 93F (34C)< 93F (34C)Temp. sensor
≤ 200W≤ 240W≤ 125WPoE budget
Full traffic loadFull traffic loadFull traffic loadLoad
< 20%< 25%< 25%Fan use
Hardware Installation Guide39Hardware Overview
AV Line of Fully Managed Switches M4250 Series