RJ11 - Different types?

Soldato
Joined
19 Dec 2003
Posts
3,105
Location
UK
Hey folks, I am moving my ADSL router to the other side of the room, and ordered a 7M 'Adsl US' cable to connect my router to the ADSL faceplate as existing wire that came with the router was not long enough.

It fits no problem, but I did notice, the existing cable had '4' gold/copper connector parts when you look through the transparent plastic connector, whereas the new one only had 2.

As a test I have ran a few pings to various websites, and they are OK but with the occasion burst from 18ms up to 350ms etc.

Have I got the wrong cable? Speedtest ran OK results, but when I look at more cables, some are advertised as twisted 4 pairs and CAT6 RJ11 cable?

Thanks
 
You only have a single pair for a telephone/ADSL connection (2 wires) An extra 2 would just be redundant in ADSL but possibly applicable for other applications.
 
Provided the cable is a twisted pair and has the two spots filled everything is good. Flat untwisted cable should be avoided. Not all products marketed as ADSL are ideal for the actual ADSL signals, stange that.

The twisting really make a difference, even on just one pair. I installed a 15M flat untwisted extension from 1st floor to ground floor and after replacing it with a proper BT spec twisted pair due to line problems I saw a 3 dB drop in attenuation, which for me was a lot as I went from 11 dB to 8 dB.
 
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