Planet Technology POE-1200 Manual de usuario descargar pdf (Pagina 36)

APPENDIX A

A.1 MDI Settings

The Medium-Dependant Interface (MDI or RJ-45) serves as the data/power interface between Ethernet elements. As such,

it has two optional connection methods, to carry the power. named Alternative A & B. Table 1 details the two power feeding

alternatives.

Pin Alternative A Alternative B

1 Vport Negative

2 Vport Negative

3 Vport Positive

4 Vport Positive

5 Vport Positive

6 Vport Positive

7 Vport Negative

8 Vport Negative

Table -1 Alternative Table

Delivering power through an RJ-45 connector’s center tap (“Phantom Feeding”) guarantees that bi-directional data flow is

maintained, regardless of a module’s power status.

A.2 Power Device Classification values

Class PD Current – Classification Period

[mA]

PD Power – Operation Period

[W]

Note

0 0 – 4 0.44 – 12.95 Default

1 9 – 12 0.44 – 3.84 Optional

2 17 -20 3.84 – 6.49 Optional

3 26 – 30 6.49 – 12.95 Optional

4 36 - 44 Future use Future use

1 2 ... 31 32 33 34 35 36 37 38 39 40 41

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Planet Technology POE-1200 Manual de usuario Pagina 36