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{| class="wikitable" style="text-align: left;"
{| class="wikitable" style="text-align: left;"
|+<b>802.3af/at Alternative B</b>:
|+<b>802.3af/at Alternative A</b>:
| style="width: 50px;" | <b>Pins at switch</b>
| style="width: 50px;" | <b>Pins at switch</b>
| style="width: 150px;" | <b>T568A Color</b>
| style="width: 150px;" | <b>T568A Color</b>
| style="width: 150px;" | <b>T568B Color</b>
| style="width: 150px;" | <b>T568B Color</b>
| colspan="2" | <b>10/100 mode B, DC on spares</b>
| colspan="2" | <b>10/100 Alternative A, mixed DC & data</b>
| colspan="2" | <b>1000 (1 gigabit) mode B, DC & bi-data</b>
| colspan="2" | <b>1000 (1 gigabit) Alternative A, DC & bi-data</b>
|-
|-
| Pin 1
| Pin 1
| [[File:Poe white orange stripe.png|75px]]<br>white/orange stripe
| [[File:Poe white orange stripe.png|75px]]<br>white/orange stripe
| style="width: 50px;" | Rx +
| style="width: 50px;" | Rx +
| style="width: 50px;" |
| style="width: 50px;" | DC +
| style="width: 60px;" | TxRx A +
| style="width: 60px;" | TxRx A +
| style="width: 50px;" |
| style="width: 50px;" | DC +
|-
|-
| Pin 2
| Pin 2
| [[File:Poe solid orange.png|75px]]<br>orange solid
| [[File:Poe solid orange.png|75px]]<br>orange solid
| Rx −
| Rx −
|
| DC +
| TxRx A −
| TxRx A −
|
| DC +
|-
|-
| Pin 3
| Pin 3
| [[File:Poe white green stripe.png|75px]]<br>white/green stripe
| [[File:Poe white green stripe.png|75px]]<br>white/green stripe
| Tx +
| Tx +
|
| DC −
| TxRx B +
| TxRx B +
|
| DC −
|-
|-
| Pin 4
| Pin 4
| [[File:Poe solid blue.png|75px]]<br>blue solid
| [[File:Poe solid blue.png|75px]]<br>blue solid
| [[File:Poe solid blue.png|75px]]<br>blue solid
| [[File:Poe solid blue.png|75px]]<br>blue solid
|
| Unused
| DC +
| Unused
| TxRx C +
| TxRx C +
| DC +
|
|-
|-
| Pin 5
| Pin 5
| [[File:Poe white blue stripe.png|75px]]<br>white/blue stripe
| [[File:Poe white blue stripe.png|75px]]<br>white/blue stripe
| [[File:Poe white blue stripe.png|75px]]<br>white/blue stripe
| [[File:Poe white blue stripe.png|75px]]<br>white/blue stripe
|
| Unused
| DC +
| Unused
| TxRx C -
| TxRx C -
| DC +
|
|-
|-
| Pin 6
| Pin 6
| [[File:Poe solid green.png|75px]]<br>green solid
| [[File:Poe solid green.png|75px]]<br>green solid
| Tx −
| Tx −
|
| DC −
| TxRx B −
| TxRx B −
|
| DC −
|-
|-
| Pin 7
| Pin 7
| [[File:Poe white brown stripe.png|75px]]<br>white/brown stripe
| [[File:Poe white brown stripe.png|75px]]<br>white/brown stripe
| [[File:Poe white brown stripe.png|75px]]<br>white/brown stripe
| [[File:Poe white brown stripe.png|75px]]<br>white/brown stripe
|
| Unused
| DC −
| Unused
| TxRx D +
| TxRx D +
| DC −
|
|-
|-
| Pin 8
| Pin 8
| [[File:Poe solid brown.png|75px]]<br>brown solid
| [[File:Poe solid brown.png|75px]]<br>brown solid
| [[File:Poe solid brown.png|75px]]<br>brown solid
| [[File:Poe solid brown.png|75px]]<br>brown solid
|
| Unused
| DC −
| Unused
| TxRx D -
| TxRx D -
| DC −
|
|-
|-
|}
|}