Romain KUNTZ kuntz(at)sfc.wide.ad.jp
Nautilus6 Working Group http://www.nautilus6.org
Last update 2005-04-26
[http://www.nautilus6.org]



Transform a hub ELECOM Laneed LD-PSW08N/AT and LD-LSW08N/AT into a PoE hub

We will explain how to transform a hub ELECOM Laneed LD-PSW08N/AT and LD-LSW08N/AT into a Power over Ethernet (PoE) hub. We are not responsible of the damages that such an alter could do, then DO IT AT YOUR OWN RISK!!
There are two different models of the LD-PSW08N/AT hub (the board is a little bit different although the hub reference is the same). They are not sold anymore and the LD-LSW08N/AT replaces it. We will explain how to perform the operations on each model.
We advice you to not do more than 4 PoE ports on the hub. Be careful, model 1 and 2 (LD-PSW08N/AT) can get 24 Volts as maximum input, but model 3 (LD-LSW08N/AT) can only get 12 Volts as maximum input.


Model 01 (LD-PSW08N/AT 24 Volts max.)

An HOWTO is available on this page.
Here are some additional pictures that may help you (click to enlarge the pictures):
Connections to get PoE on ports #7 and #8
Connections to get PoE on ports #7 and #8
Connections to get PoE on ports #5, #6, #7 and #8


Model 02 (LD-PSW08N/AT 24 Volts max.)

If your board does not look like the one presented above, then it may be as this one. Some of the resistances are not at the same place than on model 01. You can follow the instructions of model 01 (here), and take a look at those pictures (click to enlarge them) to help you:
Here is the board BEFORE the operations
You have to remove the resistances circled in red (R10 and R11 for port 8, R12 and R13 for port 7 etc.
Here are the connections you need for 4 PoE ports (#5-6-7-8)


Model 03 (LD-LSW08N/AT 12 Volts max.)

The model Laneed LD-PSW08N/AT is not sold anymore. But the new model LD-LSW08N/AT can also be modified to act as a PoE hub. Look at the picture below: remove the resistances circled in blue, and connect the pins as shown in the picture.

Here is the model 3 board BEFORE the operations
Here are the operations to perform to transform the board and get PoE on port 1 and 2.


PoE hub in action

This hub has 2 PoE ports (#7 and #8), is powered with 8 ZR6 cells (1.5V each), thus the hub is powered with 12V. We have plugged a PoE device on port 7. (Click to enlarge picture)