Quick Extension Cabling Question

Evening,

Real quick question about extension cabling. I'm doing some work for my parents and need to install an extension socket (no big deal). I have a spool of CW1724 cable which I understand is basically 2 pair CAT5e cable..

The extension run is about 45ft and the router (VDSL 80/20Mbps) will be plugged into the extension.

Question: Is there any benefit to using the orange pair in the CW1724 cable (which has tighter twists) over the blue pair to connect the extension to the master socket?

Thanks,

Are you wanting to install an extension phone socket for BT 431A plug or an extension RJ45 socket?

Why not experiement ... Try it with the Orange pair, record line stats, attenuation, SNR &c up and down, then try with the Blue pair.

My gues would be there will e some minor differences, but which will be better - no idea.


And yes, CW1724 is Cat5e - you can get 2 & 4 pair versions.

I doubt there would be any noticeable difference. The reason behind the different number of twists between pairs is to reduce crosstalk but if you're only using one pair then there wouldn't be any. But I'd be interested to see the stats for both.

In case you weren’t aware …

fitting an extension from the extension terminals within the NTE will create an issue known as a bridge tap, this will cause varying degrees of FEC errors, and will usually cause DLM to intervene … intermittent sync loss and speed caps.

If the router is at the far end of the extension as the OP has stated it would not be a bridge tap, just a slightly longer incoming line.

@aquilla You need to use the unfiltered extension terminals if have the NTE5C master socket.
A filtered phone extension will not have any Broadband signal on it.

I wouldn't be putting labour into installing phone cable at this point, run an actual Cat5e or Cat6 cable and just use one pair for now, then in the future you can change the ends if you need data.

CW1724 is Cat5e

Not very helpful when it only has two pairs in

Cat5e can have 2 pairs, 4 pairs or lots more.