What Cable do I need

[Anonymous]

@FLC 

“It's obvious because those are the only pins present, so no need to worry about colours.”

How is it obvious?  A crossover is BT 2 to RJ11 4 plus BT 5 to RJ11 3.  A straight through is BT 2 to RJ11 3 plus BT 5 to RJ11 4.  It’s not obvious by looking at the pins.  You still need to look at the colours, or put a wire map tester on it, or put a multi-meter on it.

On the other-hand, your suggestion about just plugging the original cable into a  straight through extension lead is probably the best approach under the circumstances.

[joea2001]

https://amzn.eu/d/d5ZAl7K

I've ordered this a straight through extension will this work with the original wire 

[FLC]

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@Anonymous wrote:

@FLC 

How is it obvious? 

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If there are ONLY two pins present on the BT plug on 2 & 5, & ONLY two pins present on the RJ11 on 3 & 4, it's "obvious" how the cable is wired. So I said that IF the OP's Sky cable is the same, he will require a crossover.

[FLC]

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@joea2001 wrote:

https://amzn.eu/d/d5ZAl7K

I've ordered this a straight through extension will this work with the original wire 

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Should do, at least in the same socket you used originally.