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PoE and Network Cabling Guide

Power over Ethernet (PoE) enables power to be delivered over Ethernet network cables to power devices like VoIP phones, wireless access points, and IP security cameras. The IEEE 802.3af and 802.3at standards define the specifications for PoE, including the pin assignments and power levels delivered by Power Sourcing Equipment to Powered Devices. NETSCOUT network testers validate and troubleshoot PoE networks to ensure power and data are delivered correctly.

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501 views1 page

PoE and Network Cabling Guide

Power over Ethernet (PoE) enables power to be delivered over Ethernet network cables to power devices like VoIP phones, wireless access points, and IP security cameras. The IEEE 802.3af and 802.3at standards define the specifications for PoE, including the pin assignments and power levels delivered by Power Sourcing Equipment to Powered Devices. NETSCOUT network testers validate and troubleshoot PoE networks to ensure power and data are delivered correctly.

Uploaded by

najummunir
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Power Over Ethernet

PoE
http://enterprise.netscout.com/poe

802.3af/at Standards A and B — Power Sourcing Equipment (PSE)


VoIP Phones | Internet Appliances | WLAN | Security Cameras | Access Points

IEEE Standard PoE Pin/Data Assignment


Pin 10/100 10/100 1000 (1 gigabit) 1000 (1 gigabit)
TIA/EIA-568 TIA/EIA-568
at Mode B Mode A Mode B Mode A
T568B Termination T568A Termination
switch DC on Spares Mixed DC and Data DC and Bi-Data DC and Bi-Data

1 Rx+ Rx+ DC+ TxRx A+ TxRx A+ DC+


White/Orange White/Green

2 Rx- Rx- DC+ TxRx A- TxRx A- DC+


Orange Green

3 Tx+ Tx+ DC- TxRx B+ TxRx B+ DC-


White/Green White/Orange
Not Not
4 DC+ TxRx C+ DC+ TxRx C+
Blue Blue Used Used
Not Not
5 DC+ TxRx C- DC+ TxRx C-
White/Blue White/Blue Used Used

6 Tx- Tx- DC- TxRx B- TxRx B- DC-


Green Orange
Not Not
7 DC- TxRx D+ DC- TxRx D+
White/Brown White/Brown Used Used
Not Not
8 DC- TxRx D- DC- TxRx D-
Brown Brown Used Used

IEEE Standard PoE Power Parameters


Power over Ethernet (PoE) enables
802.3af 802.3at
Property power to be delivered to an IP device
(802.3at Type1) Type 2
via its data cable.
Power available at
12.95 W 25.50 W
powered device (PD) NETSCOUT Network testers validate
Maximum power delivered by and troubleshoot PoE as well as overall
15.40 W 30.00 W 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
power sourcing equipment (PSE) T568B T568A
Voltage range (at PD) 37.0 — 57 V 42.5 — 57 V and Wi-Fi networks depending on model.
All network testers support automated

Voltage range (at PSE) 44.0 — 57 V upload of test results to the Link-Live
50.0 — 57 V
results management database.

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