====== Yealink Power Poe Requirements And Consumption ======
All Yealink phones can be powered via PoE or through power cords. They support 802.3af for PoE, and have various powercord strengths for different models. 

===== Details =====
==== New Models ====
^  Model  ^  Power Supply                   ||^  PoE                      ||^ 802.3af Class  ^
| :::     ^ Standby        ^ Typical  ^ Max   ^ Standby  ^ Typical  ^ Max   | :::            |
| T40P    |  1.0           |  1.1     |  1.3  |  1.4     |  n/a     |  3.2  | Class 2        |
| T41S    |  1.3           |  1.9     |  3.0  |  1.7     |  2.5     |  3.8  | Class 2        |
| T42S    |  1.7           |  2.2     |  3.2  |  2.5     |  3.1     |  4.7  | Class 2        |
| T46S    |  1.9           |  2.5     |  4.0  |  2.7     |  3.4     |  5.5  | Class 3        |
| T48S    |  2.2           |  3.5     |  4.9  |  3.2     |  5.4     |  7.5  | Class 3        |
|  T54W   |  1.7           |  3.0     |  4.3  |  2.2     |  3.9     |  5.5  | Class 3        |

==== Old Models ====
{{:images:yealink-poe.png?nolink|}}

===== PoE Classifications =====
^ IEEE Class  ^ Minimum Required at Power On  ^ Maximum Required during Use  ^
| 0           | 15.4W                         | 0.44 to 12.95W               |
| 1           | 4.0W                          | 0.44 to 3.84W                |
| 2           | 7.0W                          | 3.84 to 6.49W                |
| 3           | 15.4W                         | 6.49 to 12.95W               |
  
===== Related Articles =====
{{topic>yealink poe power}}

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