Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.


Can you plug non PoE devices into a PoE Switch?

Can you plug non PoE devices into a PoE Switch?

Hi Everybody,

Quick question,

Can I plug a non-PoE device into a PoE enabled switch?

Can the PoE switch be enabled/disabled per port? or are they all "lit-up" at the same time?

Any damage to non-PoE equipment if I use this switch? I would hate to waste a 24 port switch with only 2 or 3 devices.


RE: Can you plug non PoE devices into a PoE Switch?

Yes you can connect a non-poe device to a poe switch with no problems.  I once had a great site that explained it really well, but basically a device that can accept power from the switch has a certain resistance value across a pair of the wires in the cable.  If the switch detects that resistance, than power is applied.  Otherwise, it's not.

Also, you can disable power on a per port basis.  Use the "no power inline" command to disable power.

RE: Can you plug non PoE devices into a PoE Switch?

  think the command is "power inline never" to disable POE.  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!


Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close