daisychain POTS phone wiring and DSL filters?
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Posted by Al Dykes on February 16, 2006, 11:08 am
Please log in for more thread options Can I insert a plain DSL filter at the house POE if the phones the filter is supposed to isolate from the DSL signal are daisychained along one cable? -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. | ||||||||||||||||||||||||||||||||||
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Posted by Robert Redelmeier on February 16, 2006, 1:18 pm
Please log in for more thread options Yes, although the phones may draw too much current for a single filter. You are better off with a purpose-made splitter. The daisy-chaining harms nothing downstream of the filter. -- Robert | ||||||||||||||||||||||||||||||||||
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Posted by Al Dykes on February 16, 2006, 1:57 pm
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>> Can I insert a plain DSL filter at the house POE if the
>> phones the filter is supposed to isolate from the DSL signal >> are daisychained along one cable? >
>Yes, although the phones may draw too much current for >a single filter. You are better off with a purpose-made splitter. can you give me a make/model or a URL for a POE DSL/POTS device? -- a d y k e s @ p a n i x . c o m Don't blame me. I voted for Gore. | ||||||||||||||||||||||||||||||||||
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Posted by DecaturTxCowboy on February 16, 2006, 2:50 pm
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Robert Redelmeier wrote: > Yes, although the phones may draw too much current for
> a single filter. You are better off with a purpose-made splitter. Since the central office lines are current limited, I don't think you'd even come near burning out any filter. Much less having more than 2 or 3 phones off hook at the same time. | ||||||||||||||||||||||||||||||||||
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Posted by Robert Redelmeier on February 16, 2006, 4:18 pm
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> Robert Redelmeier wrote:
>> Yes, although the phones may draw too much current for
>> a single filter. You are better off with a purpose-made splitter. >
> Since the central office lines are current limited, I don't > think you'd even come near burning out any filter. Much less > having more than 2 or 3 phones off hook at the same time. I'd tend to agree, but I wouldn't be so sure about ringing current. There is nothing stopping those filters being made very cheaply, although I suspect there not much more than a simple low-pass filter. There may be a resistor on the thru leg that could fry. -- Robert | ||||||||||||||||||||||||||||||||||
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> phones the filter is supposed to isolate from the DSL signal
> are daisychained along one cable?