Yup, that sounds like the one I use. Another nice feature is the cable length 
indicator, which is fairly accurate. But indeed, it is no Fluke.


--Matt Ross
Ephrata School District


----- Original Message -----
From: Ben Scott
[mailto:[email protected]]
To: NT System Admin Issues
[mailto:[email protected]]
Sent: Fri, 05 Jun 2009
14:03:17 -0700
Subject: Re: Cable tester suggestion


> On Fri, Jun 5, 2009 at 1:24 PM, Matthew W. Ross<[email protected]>
> wrote:
> > I used a tester from a company called Test-Um, which I just found out was
> purchased by JDSU.
> > The TestUm won't validate Cat-5e or Cat-6 ...
> 
>   If it's the same one I've got, it's just a glorified continuity
> tester and tone generator.  It will tell you if you're wired an
> 8-conductor straight-through cable properly, and identify the failure
> mode (open, short, miswire, split) and the bad wires if not.  All that
> is pretty good given the sub $100 price.  But it doesn't actually do
> performance testing/certification, which is what the OP is asking for.
> 
>   I know from hard experience that you can have a cable that's wired
> right but won't perform well due to impedance, selective frequency
> problems, propagation skew, or about 11 different kinds of crosstalk.
> Most common cause is the wire being physically stressed during
> installation.  With gig Ethernet, a sharp kink is all you need for a
> bad day.
> 
> -- Ben
> 
> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~
> ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~
> 

~ Finally, powerful endpoint security that ISN'T a resource hog! ~
~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/>  ~

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