NETGEAR AV Series Hardware Installation Manual page 29

Table 7. Fan operation properties per model
Fan Mode M4250-10G2F-PoE+
Off mode
Temp. ≤ 108F (42C)
sensor
PoE budget ≤ 80W
Load Full traffic load
Fan use Off
Quiet mode with fan use below 25%
Temp. < 97F (36C)
sensor
PoE budget ≤ 125W
Load Full traffic load
Fan use < 25%
Quiet mode with fan use from 25–100%
Temp. ≥ 97F (36C)
sensor
PoE budget ≤ 125W
Load Full traffic load
Fan use ≥ 25–100%
Cool mode
Fan use 100%
Note 1. The fans for this model can function in Off mode only if a maximum of eight
Ethernet port are operational (only four ports in the range from 1 to 8 but all ports in
the range from 9 to 12) and if no SFP+ ports are operational.
Note 2. The fans for this model can function in Off mode only if a maximum of eight
SFP+ ports are operational.
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 108F (42C) or the PoE budget exceeds
80W, the switch automatically places the fans in Quiet mode or Cool mode so that the
fans operate between 25 and 100 percent speed.
Hardware Overview
AV Line of Fully Managed Switches M4250 Series
M4250-10G2XF-PoE+
≤ 111F (44C)
≤ 90W
Full traffic load
Off
< 98F (37C)
≤ 240W
Full traffic load
< 25%
≥ 98F (37C)
≤ 240W
Full traffic load
≥ 25–100%
100%
M4250-10G2XF-PoE++ M4250-12M2XF
≤ 152F (67C) ≤ 147F (64C)
≤ 45W N/A
Full traffic load See Note 1
Off Off
< 120F (49C) < 136F (58C)
< 90W N/A
Full traffic load Full traffic load
< 25% < 25%
≥ 120F (49C) ≥ 136F (58C)
≤ 720W N/A
Full traffic load Full traffic load
≥ 25–100% ≥ 25–100%
100% 100%
29
M4250-16XF
≤ 172F (78C)
N/A
See Note 2
Off
< 152F (67C)
N/A
Full traffic load
< 25%
≥ 152F (67C)
N/A
Full traffic load
≥ 25–100%
100%
Hardware Installation Guide