You have to power down a port before unplugging the cable?!?

DOWNLOAD THE LATEST FIRMWARE HERE
User avatar
sirhc
Employee
Employee
 
Posts: 7415
Joined: Tue Apr 08, 2014 3:48 pm
Location: Lancaster, PA
Has thanked: 1608 times
Been thanked: 1325 times

Re: You have to power down a port before unplugging the cabl

Sat Nov 07, 2015 10:53 am

IntL-Daniel wrote:Thanks for reply. Could you be more specific about "It is "suggested" to not plug and unplug active POE ports especially VH ports."? Is there any other reason except a "avoiding not plug shorted cable"?


It is suggested not to because one should get in the habit of not doing so as it is a risky approach.

It is always a good thing to un-power any electrical circuit when working on it, that is just basic safety.

I am not sure what you want from me, we suggest you not do this for many reasons:
1) You get in the habit of doing it this way and if you plug in a device with a bad cable you get a short. I tell my WISP guys to NEVER do this so procedure is to not do it this way.

2) You can plug in a connector at an angle and cause a short from pins on the connector being mis-aligned and it arcs a short.

3) If the user is plugging in live cables and gets contact and loses contact and gets contact several times in a short period (ms) then the in-rush of current is experienced in succession.

4) Applying power and removing power and applying power in rapid succession to electronics sometimes will factory default them, I have seen this happen.

It is just not a good thing to do.
Support is handled on the Forums not in Emails and PMs.
Before you ask a question use the Search function to see it has been answered before.
To do an Advanced Search click the magnifying glass in the Search Box.
To upload pictures click the Upload attachment link below the BLUE SUBMIT BUTTON.

IntL-Daniel
Experienced Member
 
Posts: 170
Joined: Mon Nov 02, 2015 5:07 pm
Location: Czech Republic
Has thanked: 7 times
Been thanked: 9 times

Re: You have to power down a port before unplugging the cabl

Sat Nov 07, 2015 11:01 am

OK thanks, I understand enough. The "MAIN" reason is still to avoid short from any reason. I was thinking about some other reasons like static electricity or some electric overload of the switch etc.

Previous
Return to Hardware and software issues

Who is online

Users browsing this forum: No registered users and 33 guests