Skip navigation
Cisco Learning Home > CCNP R&S Study Group > Discussions
This Question is Not Answered 1 Correct Answer available (4 pts) 1 Helpful Answer available (2 pts)
16765 Views 8 Replies Latest reply: Nov 10, 2011 12:14 AM by James RSS

Currently Being Moderated

what use of patch panel

Nov 8, 2011 4:25 AM

jazzy 23 posts since
Jun 28, 2011

Hello

 

A little bit confused, what the need for a patch panel if you can connect end devices directly to switch. Any information will

be highly appreciated.

 

 

thanks

  • Luis Marquina 13 posts since
    Aug 25, 2008
    Currently Being Moderated
    1. Nov 8, 2011 4:48 AM (in response to jazzy)
    Re: what use of patch panel

    I had the same question at the beginning of my networking career, now I can't imagine a server room without patch panels, here is a good explanation :

     

    Why do we use Patch Panel?

     

    A patch panel provides a convenient place to terminate all of the cable runs coming from different rooms into the wiring closet. Of course, one could skip the patch panel and just connect all RJ-45 connectors directly into the hub, but one may miss the following advantages:

     

    You can label the patch panel so you know which room the cable run goes to. Putting the labels on the cables is tougher to read than labels on a patch panel and also there is risk of having the cable labels fall off. A patch panel is a step up from a punch-down block. It usually has a 110 style connectors on the back for the cable to run to the stations. Each of those connectors is wired to an RJ-45 on the front. The RJ-45 on the front provides a spot to plug in a patch cable that goes to the hub. The Type 110-style connectors are usually color-coded with 568A or 568B to match the color of the cable pairs.It is always essential that the style (568A or 568B ) on the patch panel matches the style of the wall plate.

     

    In a few words patch panels gives you a very good cabling organization.

     

    I hope this helps you.

     

    Regards

  • Albert 267 posts since
    Nov 22, 2010
    Currently Being Moderated
    2. Nov 8, 2011 4:49 AM (in response to jazzy)
    Re: what use of patch panel

    Patch panels are really useful. They offer much more flexibility than simply connecting devices. e.g.

     

    * Allow you to insert a data test set on wan circuits for the purposes of testing and verifcation

    * Allow you to change a network configuration without having to rearrange equipment and re-run cables

     

    HTH

  • Paul Stewart  -  CCIE Security, CCSI 6,993 posts since
    Jul 18, 2008
    Currently Being Moderated
    3. Nov 8, 2011 4:50 AM (in response to jazzy)
    Re: what use of patch panel

    It helps you keep things clean and neat. It is technically unnecessary, but is certainly recommended.

  • Keith Barker - CCIE RS/Security, CISSP 5,351 posts since
    Jul 3, 2009
    Currently Being Moderated
    4. Nov 8, 2011 4:51 AM (in response to jazzy)
    Re: what use of patch panel

    Hello Jazzy-

     

    patch-panel.jpg

     

    Having a patch panel in the wiring closet, or in the area in the data center makes it easier for moves, adds and changes to be done.   There is more room on the patch panel (possibly ) for labels that indicate which cube or office a connection goes to.  That is one of reasons.

     

    Keith

  • Conwyn 7,907 posts since
    Sep 10, 2008
    Currently Being Moderated
    5. Nov 8, 2011 5:08 AM (in response to jazzy)
    Re: what use of patch panel

    Hi Jazzy

     

    A patch panel is used to keep the cables tidy. So on the front you have RJ45 connectors and behind there will be 8*N wires which go off around the building.

     

    Regards Conwyn

  • Currently Being Moderated
    6. Nov 8, 2011 9:35 AM (in response to jazzy)
    Re: what use of patch panel

    Because 66 blocks just weren't cutting it anymore. 

     

     

    Seriously though, as many have mentioned, it helps in keeping things clean, you can label them with something useful to help identify drops between offices and the patch panel, and it stabilizes the wiring.  By terminating it on a fixed point like a patch panel, you can secure the cables.  If you ran a cable all the way back to the drop, through the wall, and out to the computer, you have a very "loose" and not very trustworthy infrastructure. 

     

    I've seen folks take the time to run the wire through the cieling, down a wall, just to cut a hole and run the cable straight to the back of the PC.  Over time that cable had to be re-pulled because with all the plugging and unplugging being done over the years when the PC had to be worked on, or the desk moved, etc - it wore it out.

     

    Now, had they terminated the run properly into an electrical box that was anchroed to a stud, which had a face plate on it, with the correct punchdown, that cable could have been ran back through the proper cable management, and then terminated securely on a patch panel.  In which case, over the years, you spend a few bucks on a patch cable instead of $500 to run a new cable and rip out the old one. 

  • soibcp 22 posts since
    Sep 18, 2010
    Currently Being Moderated
    7. Nov 8, 2011 3:22 PM (in response to jazzy)
    Re: what use of patch panel

    Everyone is talking about keeping cables titdy which is a valid point. But there's another really important point.

     

    Imagine a workplace without a patch panel or wall jacks. You would have to connect your laptop/desktop straight to the switch with a really long cable that would either be on the ground or behind the wall. So when you think of a wall jack, patch panel etc.. just think of it as an extension cord.

    The cable runs from your laptop to the wall jack. Then another cable from the wall jack to the patch panel (which is normally set during building construction. Then another cable from the patch panel to the switch/other device.

    The switch doesn't know/doesn't care about the seperate cables. It just thinks the laptop is plugged straight in to it.

    Patch panels will also give you the flexability to change ports around really easy.

  • James 584 posts since
    Jun 29, 2008
    Currently Being Moderated
    8. Nov 10, 2011 12:14 AM (in response to jazzy)
    Re: what use of patch panel

    Their are advanatges of each one and dis advantages. I have some sections that have patch panels and cables stright into a switch so I see both sides of the event. The main advantage of the patch panel is that they are usally a lot eaiser to read the information on them about where the cable comes from. You can always unplug and test to make sure the connection is good or you do not need it. But you also got to think that with the extra connections you have with the patch cord that you will need, that adds more equipment that can fail and takes up more room.

     

         Without the panel you can run cables into the switch and same some cost of putting in the patch panel and the cables, but if you want to pull or dis connect the cable it is a lot harder to do it. Unless you know that area will not be changing much if at all. So look at the areas that they will be going in and make the call for your area. 

Actions

More Like This

  • Retrieving data ...

Bookmarked By (0)