Analog Devices DC2911A, Демонстрационное руководство

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6
DEMO MANUAL DC2911A
Rev. 0
QUICK START PROCEDURE
Table 4. Interoperability ( T2P Response*, PSE Allocated Power, Number of Class/Mark Events)
PD REQUESTED CLASS
(PD REQUESTED POWER)
PSE TYPE, CLASS (POWER)
AUXILIARY
POWER
SOURCE**
IEEE 802.3
TYPE 1
IEEE 802.3
TYPE 2
IEEE 802.3
TYPE 3
IEEE 802.3
TYPE 4 LTPoE++
CLASS 3
(13W)
CLASS 4
(25.5W)
CLASS 4
(25.5W)
CLASS 5
(40W)
CLASS 6
(51W)
CLASS 7
(62W)
CLASS 8
(71.3W) (38.7W) (52.7W) (70W) (90W)
CLASS 0−3
(Up to 13W)
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Hi-Z
Up to 13W
1-Event
Low-Z
Aux. Power
N/A
CLASS 4
(25.5W)
Hi-Z
13W
1-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
2-Event
Low-Z
Aux. Power
N/A
CLASS 5
(40W)
Hi-Z
13W
1-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
3-Event
50%
40W
4-Event
50%
40W
4-Event
50%
40W
4-Event
50%
40W
4-Event
75%
38.7W
3-Event
75%
38.7W
3-Event
75%
38.7W
3-Event
75%
38.7W
3-Event
75%
Aux. Power
N/A
CLASS 6
(51W)
Hi-Z
13W
1-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
50%
51W
4-Event
50%
51W
4-Event
50%
51W
4-Event
DENIED
75%
52.7W
3-Event
75%
52.7W
3-Event
75%
52.7W
3-Event
75%
Aux. Power
N/A
CLASS 7
(62W)
Hi-Z
13W
1-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
50%
51W
4-Event
25%
62W
5-Event
25%
62W
5-Event
DENIED DENIED
75%
70W
3-Event
75%
70W
3-Event
75%
Aux. Power
N/A
CLASS 8
(71.3W)
Hi-Z
13W
1-Event
Low-Z
25.5W
2-Event
Low-Z
25.5W
3-Event
Low-Z
25.5W
3-Event
50%
51W
4-Event
50%
51W
4-Event
25%
71.3W
5-Event
DENIED DENIED DENIED
75%
90W
3-Event
75%
Aux. Power
N/A
↓
T2P Response*
→
PSE Allocated Power
→
Number of Classification Events
→
75%
90W
3-Event
Note 1. Shade of blue indicates the PD has been demoted or denied power.
* Specified as the percentage of the period which
T2P is low impedance with respect to GND.
** Auxiliary Power Supply must be sized to provide PD Requested Power.