In message <(E-Mail Removed)>, Tiscali Tim
<(E-Mail Removed)> writes
>In an earlier contribution to this discussion,
>Mike Kingston <(E-Mail Removed)> wrote:
>
>> My Clarity RJ45 extension socket bears a label marked 568B showing the
>> layout for cable attachment, but to confuse matters there is enclosed
>> in the packing a similar label marked 568A with a different layout.
>> Could use socket as-is, i.e 568B, I guess, but I'd like to get it
>> right first time. Enough other things to go wrong - new broadband
>> connection.
>>
>> Not clear to me from Clarity web site on how to decide which to use.
>> Search on 568A 568B reveals a paper from Able Cables Pty Ltd with
>> useful technical info and the conclusion "All new installations
>> should be carried out using the 568A standard and cables only to be
>> terminated to 568B specification on existing systems". But that's Oz,
>> not local advice!
>>
>> E-mailed Clarity who responded automatically of a warning of a delayed
>> response.
>>
>> Advice on which way to go would be appreciated (if by e-mail, note
>> address fudge in signature)
>
>
>
>Are you using this for a digital extension for ADSL - with the other end of
>the cable wired into a Clarity modified faceplate?
>
Yes, exactly that. Neat wiring up the stairs thereby.
>If so, forget about 568A/B - you only need one pair - which uses the middle
>2 conductors - i.e. pins 4 and 5 of an 8-pin RJ45.
>
>If you look at http://www.tcswnc.com/RJ11%20and%20R...Connectors.htm
>you'll see that Pair 1 is wired the same on A or B variations.
Clears up my uncertainty. Thank you. The info is (I see now) in the
Clarity documentation, but I was confused by all the new (to me)
terminology.
I lifted the 568B label and disclosed the pin numbers, which fills in
the gap in my knowledge. Catching up .....
--
Michael J Kingston - Researching Family History
News of surname DIGWEED always welcomed
< Remove my initials from the "To:" address field when replying >