C Onfiguration - Black Box LPB2910A User Manual

2-­‐ 1 3 P oE
PoE i s a n a cronym f or P ower O ver E thernet.
Power Over Ethernet is used to transmit electrical power to remote devices over standard Ethernet
cable. I t c ould, f or e xample, b e u sed f or p owering I P t elephones, w ireless L AN a ccess p oints a nd o ther
equipment, where it would be difficult or expensive to connect the equipment to a main power
supply.
The P oE d etect f unction i s d escribed i n t he t able b elow.
Stage
Detection PSE d etects i f t he P D h as t he c orrect
signature r esistance o f 1 9–26.5 k Ω
Classification PSE d etects r esistor i ndicating p ower
range
Mark 1 Signals P SE i s 8 02.3at c apable. P D
presents a 0 .25–4 m A l oad.
Class 2 PSE o utputs c lassification v oltage a gain
to i ndicate 8 02.3at c apability
Mark 2 Signals P SE i s 8 02.3at c apable. P D
presents a 0 .25–4 m A l oad.
Startup Startup v oltage
Normal Supply p ower t o d evice
operation
Class Usage
0 Default
1 Optional
2 Optional
3 Optional
4 Valid f or 8 02.3at ( Type 2 )
devices, n ot a llowed f or
802.3af d evices
2-­‐ 1 3.1 C onfiguration
This page allows the user to inspect and configure the current PoE port settings and show all PoE
Supply W .
Web I nterface
To c onfigure P ower O ver E thernet i n t he w eb i nterface:
1. Click c onfiguration, P oE, a nd c onfiguration.
Stages o f P owering u p a P oE L ink
Action
Power l evels a vailable
Power r ange
[Watt]
15.4
4
7
15.4
30
139
Volts s pecified
[V]
802.3af
2.7-­‐10.1
14.5-­‐20.5
─
─
─
>42
37-­‐45
Class d escription
Classification
unimplemented
Very L ow p ower
Low p ower
Mid p ower
High p ower
Publication date: Sept, 2015
802.3at
7-­‐10
14.5-­‐20.5
7-­‐10
>42
42.5-­‐57
Revision A1