Allied Telesis x530L Series, Installation Manual

Page: 43 / 228

x530L Series Installation Guide for Virtual Chassis Stacking
43
Powered Device
Classes
Powered devices are grouped into the nine classes listed in Table 14. The
classes are based on the amount of power the devices require. The
x530L-28GPX and x530L-52GPX switches support classes 0 to 4. The
x530L-10GHXm and x530L-18GHXm switches support classes 0 to 8.
Caution
When hot-swapping PoE PD Classes 5-8, the IC device can be
damaged when the Ethernet cable is removed while supplying PoE
power. To avoid damage, disable the port with the CLI or power off
the unit before removing the cable.

E133
Power Budget
The x530L-28GPX and x530L-52GPX switches have two power supplies.
Each power supply provides 370W for a total PoE of 740W. This is the
total maximum amount of power that the switch can supply to powered
devices on the 24/48 PoE+ twisted pair ports. The number of powered
devices that the switches can support at one time will depend on their
power requirements. For instance, under normal operating conditions, the
switches can support up to 24 Class 4 powered devices with the maximum
25.5W.
The x530L-10GHXm switch has one power supply. It can supply 500W of
PoE power. This is the total maximum amount of power that the switch can
supply to powered devices on the eight PoE++ twisted pair ports. The
number of powered devices that the switch can support at one time will
depend on their power requirements. For instance, under normal operating
Table 14. IEEE Powered Device Classes
Class
Maximum Power Output
from a Switch Port
PD Power Range
0 15.4W 0.44W to 12.94W
1 4.0W 0.44W to 3.84W
2 7.0W 3.84W to 6.49W
3 15.4W 6.49W to 12.94W
4 30.0W 12.94W to 25.5W
5 45.0W 40.0W (4-pair)
6 60.0W 51.3W (4-pair)
7 75.0W 62.0W (4-pair)
8 90.0W 71.3W (4-pair)