Direct POE connection into ether2?

[Dougal]

Guys, I don't think anyone has asked this question b4 from the searching I've done, but, my situation is this: I have a dead ether1, link light ok, but no traffic. I'm also powering up via this, which is fine.

Now, thing is, I want to use an ethernet connection to the WAR, but I don't want to run a second cat5 down from where the box is, beacuse it's very difficult to get at.

So my question simply is, can I swap over the poe from ether 1 to ether 2 and leave ether 1 unused?

Thanks!

[tony]

Our initial WAR systems had the ability to be powered (and give power) via the second Ethernet port. This has since been changed in our current revisions as some switches do not like DC running over the CAT5.

Depending on your WAR revision, you may be in luck. All you can really do is give it a try, and if your board powers up, you are in luck. If it does not, you will cause no harm to your system, but that also means you need to power your system through other means.

FYI: The default IP on the second Ethernet is 192.168.2.1.

[Dougal]

Thanks for that Tony, I'll give it a try. I can't tell what revision my WAR is from the login screen, maybe there's a sticker on the pcb, but I won't be able to see that easily. It's a WAR4 in any case.

I'll report back on the outcome.

Thanks!

[tony]

If it's a WAR4, there is a good chance it has this ability.

Thanks!

[go.fast]

Guys, I don't think anyone has asked this question b4 from the searching I've done, but, my situation is this: I have a dead ether1, link light ok, but no traffic. I'm also powering up via this, which is fine.

Now, thing is, I want to use an ethernet connection to the WAR, but I don't want to run a second cat5 down from where the box is, beacuse it's very difficult to get at.

So my question simply is, can I swap over the poe from ether 1 to ether 2 and leave ether 1 unused?

Thanks!

I've worked around this issue before.
Hopefully you have some room to work with in the enclosure that holds the war.

Here's what you do.
Instead of having one punch down cat 5 jack in the enclosure with all 8 wires punched, you will need to break out the green pair and the orange pair from the 1st ethernet jack and punch them down to a 2nd ethernet jack.
Thus you will have 2 ethernet jacks. The 1st one with the blue and brown pairs going to ether1 to give power and the 2nd with green and orange going to ether 2 for your ethernet connectivity.

[Dougal]

Gees thats a brilliant idea! So either way I'm covered! Any solution beats running a second cable down, it took me days to route the first one!
Thanks guys!

[Dougal]

Hey Guys, I tried powering up on ether2 at the weekend, and everything is great again! Worked perfectly. Thanks for all your replies.

Dougal

[tony]

Thank you for the update.

I am pleased to hear you are up and running again.

[David L. Vrablic]

[quote=tony;41707]Our initial WAR systems had the ability to be powered (and give power) via the second Ethernet port. This has since been changed in our current revisions as some switches do not like DC running over the CAT5.
-----------------------

And just as I read this post and said to myself .
"I have never had any problems with the power on eth 2.
It happened! I installed a box on Friday tested it fully, plugged the customer into the eth2 port and went on my way.
Over the weekend they terminated the other end of the cable and plugged it into a Dell server.
Down it went, I got onsite this morning and thought strange no output out of the 24v wall wart.
Must be infant mortality, I replaced it the lights came back on, everything was fine.
I got involved in a conversation with the IT guys and thought I would check it once more before I left.
Lights out again, no power from the replacement power module.
I dug out a third module and installed it only this time I installed a POE injector backwards.
POE port to the eth 2 jack.
Plugged the customer into the LAN side.
Covered up the power port with tape and all is well.
Lesson learned :
"Never take a chance that POE on the customer cable will not give you a problem"