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Joined: Jan 2002
Posts: 2,328
Moderator-Comdial
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Moderator-Comdial
Joined: Jan 2002
Posts: 2,328 |
Originally posted by EV607797:
DSL just "rides" along a copper cable pair. One side of the pair can actually be open and DSL will still work. The copper pair is more of an "antenna" as far as DSL is concerned. And it continues to amaze me to have NDT but DSL works fine!!!
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Joined: Feb 2007
Posts: 2,473
Member
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Member
Joined: Feb 2007
Posts: 2,473 |
Dial tone has nothing to do with DSL. Just need a one pair copper in good condition.
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Joined: Mar 2008
Posts: 78
Member
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Member
Joined: Mar 2008
Posts: 78 |
A dry loop (DSL line with no voice service) still has voltage on it, that is how the signal maintains its integrity. The DT just isn't there.
I was surprised the first time I toned on a dry loop and got a light on my toner (don't tone live lines, they tell me). They look the same as a normal line to a buttset voltage check too.
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Joined: Feb 2005
Posts: 12,354 Likes: 4
Member
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Member
Joined: Feb 2005
Posts: 12,354 Likes: 4 |
A dry loop (DSL line with no voice service) still has voltage on it, that is how the signal maintains its integrity.
Actually battery is there (so it's not a dry loop) so that the wire maintains it's integrity and also so that techs can know it's a working pair. Battery is not necessary for the DSL.
-Hal
CALIFORNIA PROPOSITION 65 WARNING: Some comments made by me are known to the State of California to cause irreversible brain damage and serious mental disorders leading to confinement.
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Joined: Dec 2004
Posts: 5,722
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Member
Joined: Dec 2004
Posts: 5,722 |
Yep, had a fax with DSL on it stop working...NDT but the DSL worked great...open HC in the CO...across the street. Who'd a thought???
:shrug:
Ken
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