86
Model
PI
quantity
PI power
Maximum PSE power
Maximum number of
PSEs for each switch
model
LSQ1GV40PSC
0
40
0 to 15.4 W
616 W
•
7502:
2
•
7503:
3
•
7506:
6
•
7506-V:
6
•
7510:
10
NOTE:
•
The PoE power consumption is 0 if the switch does not supply PoE.
•
The maximum PoE power consumption of the 7510 switch is 10000 W.
•
For more information about PoE power supply, see "Installing FRUs."
Heat dissipation
Heat dissipation is measured in BTU/h, and 1 W equals 3.4121BTU/h.
The heat dissipation of a switch depends on its power consumption. To calculate heat dissipation of
the switch, assume 90% power consumption is converted to heat, and the efficiency of the power
supply is 90%. Heat dissipation/hour of the switch is 0.9 × (total power consumption of the modules
plus power consumption of the fan tray)/0.9 × 3.4121.
shows the heat dissipation for each switch model.
Table 29 Heat dissipation
Model
Heat dissipation (BTU/h)
7502 1024
7503-S 1190
7503 1870
7506 3200
7506-V 3200
7510 4900
For the power consumption of the modules and fan trays of the 7500 switches, see "
."
Noise
The switch uses fan trays that can adjust the fan speed automatically based on the device
temperature. The sound pressure levels vary by fan speed. For more information, see
.
Table 30 Sound pressure levels
Model
Sound pressure level
when the fan tray
operates at low speed
Sound pressure level
when the fan tray
operates at middle speed
Sound pressure level
when the fan tray
operates at full speed
7502
49.8 dBA
51.6 dBA
56.7 dBA
7503-S N/A
N/A
56.7
dBA
