Powered Device Classes; Cable Requirements; Table 2: Ieee Powered Device Classes; Table 3: Twisted Pair Cable Requirements For The 10/100Base-Tx Ports At 10 Or 100Mbps - Allied Telesis AT-GS924MX Installation Manual

Powered Device
Classes
Cable
Requirements
Table 3. Twisted Pair Cable Requirements for the 10/100Base-TX Ports at 10 or 100Mbps
Cable Type
Standard TIA/EIA 568-B-
compliant Category 3 shielded
or unshielded cabling with 100
ohm impedance and a
frequency of 16 MHz.
Standard TIA/EIA 568-A-
compliant Category 5 shielded
or unshielded cabling with 100
ohm impedance and a
frequency of 100 MHz.
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.
Powered devices are grouped into the five classes listed in Table 2. The
classes are based on the amount of power the devices require. The
switches support all five classes.
Table 2. IEEE Powered Device Classes
Class Output from a Switch
0 15.4W
1 4.0W
2 7.0W
3 15.4W
4 30.0W
The cable requirements for ports operating at 10 or 100Mbps are given in
Table 3.
Non-
PoE
Yes
Yes
Yes
AT-GS900MX Series Installation Guide for Stand-alone Switches
Maximum Power
Port
10Mbps
PoE PoE+
No No Yes
Yes No Yes
Yes Yes Yes
PD Power Range
0.44W to 12.95W
0.44W to 3.84W
3.84W to 6.49W
6.49W to 12.95W
12.95W to 25.5W
100Mbps
Non-
PoE PoE+
PoE
No No
Yes No
Yes Yes
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