AT-x230-10GT, AT-x230-10GP, AT-x230-18GT, AT-x230-18GP, AT-x230-28GT and AT-x230-28GP Switch Installation Guide
29
Powered device
classes
Powered devices are grouped into the five classes listed in Table 2 on
page 29. The classes are based on the amount of power the devices
require. The x230 Series PoE switches support all five classes.
Cable
requirements
Cable requirements for ports operating at 10 or 100Mbps are in Table 3.
Cable requirements for ports operating at 1000Mbps are in Table 4.
T
ABLE
2. IEEE
POWERED
DEVICE
CLASSES
Class
Maximum power output
from a switch port
PD power range
Margin of cable loss
0
15.4W
0.44W to 12.95W
0.8W
1
4.0W
0.44W to 3.84W
0.2W
2
7.0W
3.84W to 6.49W
0.4W
3
15.4W
6.49W to 12.95W
0.8W
4
30.0W
12.95W to 25.5W
1.2W
T
ABLE
3. T
WISTED
PAIR
CABLE
REQUIREMENTS
FOR
THE
10BASE-T
AND
100BASE-TX
PORTS
AT
10
OR
100M
BPS
Cable type
10Mbps 100Mbps
Non
PoE
PoE PoE+
Non
PoE
PoE PoE+
Cat 3: Standard TIA/EIA 568-B-compliant
Category 3 shielded or unshielded cabling
with 100 ohm impedance and a frequency of
16 MHz
Yes
Yes
No
Yes
Yes
No
Cat 5: Standard TIA/EIA 568-A-compliant
Category 5 shielded or unshielded cabling
with 100 ohm impedance and a frequency of
100 MHz
Yes
Yes
No
Yes
Yes
No
Cat 5e: Standard TIA/EIA 568-B-compliant
Enhanced Category 5 (Cat 5e) shielded or
unshielded cabling with 100 ohm
impedance and a frequency of 100 MHz
Yes
Yes
Yes
Yes
Yes
Yes
Cat 6 or 6a: Standard TIA/EIA 568-B-
compliant Category 6 or 6a shielded cabling
Yes
Yes
Yes
Yes
Yes
Yes
