Mdi Settings; Power Device Classification Values; Appendix A; A.2 P Ower D Evice C Lassification Values - Planet POE-1200 User Manual

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
1 Vport Negative
2 Vport Negative
3 Vport Positive
4
5
6 Vport Positive
7
8
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
0
1
2
3
4
Alternative B
Vport Positive
Vport Positive
Vport Negative
Vport Negative
PD Power – Operation Period
[mA]
0 – 4
9 – 12
17 -20
26 – 30
36 - 44
[W]
0.44 – 12.95
0.44 – 3.84
3.84 – 6.49
6.49 – 12.95
Future use

APPENDIX A

Note
Default
Optional
Optional
Optional
Future use
33