In what situation.

Do you mean the splitter for an ADSL line to the router or something else.

Please clarify your question.

Are you looking for a minimum distance, maximum distance or anything in between? Ideal is relative.

I agree with Curlyben. We need more information!

If you're referring to an ADSL Splitter and having one go to phone and the other to modem/router then chek out the following link:

Length of cable from ADSL splitter to modem effects speed!
(although I have 25' from my jack to my modem)

However this link says 75' max
WeetHet - ADSL - Common MXStream problems ...

If you're referring to cable splitter so one goes to TV or cable box and the other to a cable modem/router everything I read said a max of 50'


Not sure if this is correct. I am sure someone knows!