Fans For The 24-Port Poe+ And Poe++ Models - NETGEAR GSM4248PX Hardware Installation Manual

Fans for the 24-port PoE+ and PoE++ models

The following table describes the thresholds and operational properties of the fans for
the 24-port PoE+ and PoE++ models. (The temperatures in Fahrenheit are rounded
down.)
Table 11. Fan operation properties for the 24-port PoE+ and PoE++ models
Fan Mode
Off mode
Temp. sensor 1 or
Temp. sensor 2
PoE budget
Load
Fan use
Quiet mode with fan use below 30%
Temp. sensor 1 or
Temp. sensor 2
PoE budget
Load
Fan use
Quiet mode with fan use from 30–100%
Temp. sensor 1 or
Temp. sensor 2
PoE budget
Load
Fan use
Cool mode with maximum cooling
Fan use
Example of intelligent fan operation:
If the fans of model M4250-26G4F-PoE+ operate in Off mode and either the temperature
detected by the temperature sensor 2 exceeds 116F (47C) or the PoE budget exceeds
45W, the switch automatically places the fans in Quiet mode.
Hardware Overview
AV Line of Fully Managed Switches M4250 Series
M4250-26G4F-PoE+
≤ 109F (43C)
≤ 116F (47C)
≤ 45W
Maximum 8 Ethernet ports
active. SFP ports not
active.
Off
< 111F (44C)
< 118F (48C)
≤ 300W
Full traffic load
< 30%
111F (44C) – 123F (51C)
118F (48C) – 125F (52C)
≤ 300W
Full traffic load
≥ 30 – 100%
100%
M4250-26G4XF-PoE+
≤ 105F (41C)
≤ 114F (46C)
≤ 45W
Maximum 8 Ethernet ports
active. SFP+ ports not
active.
Off
< 107F (42C)
< 116F (47C)
≤ 480W
Full traffic load
< 30%
107F (42C) – 118F (48C)
116F (47C) – 123F (51C)
≤ 480W
Full traffic load
≥ 30 – 100%
100%
41
M4250-26G4F-PoE++
Off mode is not supported
< 102F (39C)
< 105F (41C)
≤ 420W
Full traffic load
< 30%
102F (39C) – 123F (51C)
105F (41C) – 127F (53C)
420W – 1440W with both
power supplies active.
Full traffic load
≥ 30 – 100%
100%
Hardware Installation Guide