Datasheet

P a g e | 3
GAC2500 Power Consumption Technical Bulletin
2. PD Power Classification
Table 2: PD Power Classification (IEEE 802.3af)
Class
Usage
Max Power Range used by the PD (phone)
0
Default
0.44 to 12.95W
1
Optional
0.44 to 3.84W
2
Optional
3.84 to 6.49W
3
Optional
6.49 to 12.95W
4
Not Allowed
Reserved for future use
(for example: IEEE802.3at)
Table 3: PD Power Classification (IEEE 802.3at)
Class
Usage
Max Power Range used by the PD (phone)
0
Default
0.44 to 12.95W
1
Optional
0.44 to 3.84W
2
Optional
3.84 to 6.49W
3
Optional
6.49 to 12.95W
4
Optional
12.95 to 25.5W