X hits on this document

Powerpoint document

Power of Ethernet Direct PoE Product Line Overview - page 7 / 20

76 views

0 shares

0 downloads

0 comments

7 / 20

What is PoE – What is PD

PD – Powered Device

A PD is a device that is either drawing power or requesting power from PSE.

The Power Class of PD:

Once a PD is discovered, a PSE may optionally perform PD classification by applying a DC voltage and current to the port, allocated power is subtracted from total power budget.

Any unclassified PD is considered to be a class 0 device.

Class 3 is similar to Class 0 in that it also requests full power, but a Class 3 PD will always draw at least 7W according to the standard, whereas a Class 0 device could draw anything up to full power

Reserved for Future Use

Reserved

4

6.49 to 12.95

Optional

3

3.84 to 6.49

Optional

2

0.44 to 3.84

Optional

1

0.44 to 12.94

Default

0

Maximum Power Levels at Input of Powered Device

Usage

Class

The Power Class of PD

PD Device is referring to the device like:

PoE IP-Cam (5~12W), PoE IP-Phone (3~6W), PoE Wi-Fi access point (4~11W), PoE RFID Reader, PoE door controller, PoE printer server….etc

Document info
Document views76
Page views76
Page last viewedSat Dec 10 05:46:41 UTC 2016
Pages20
Paragraphs281
Words1552

Comments