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Re: More modem problems with kernel 2.4.18



* Paul Johnson (baloo@ursine.dyndns.org) [020620 23:28]:
> On Thu, Jun 20, 2002 at 11:24:50PM -0700, Vineet Kumar wrote:
> > You should be able to find a surge protector with RJ11 jacks on it for
> > around $9.95 at circuit city...
> 
> These tend to introduce a considerable amount of line noise and you end
> up plugging your modem into two things that can get hit by lightning...

Really? I've actually found that surge protectors generally decrease
line noise, but that's speaking of home stereo equipment. I've never
done any testing on phone lines through it.

You've also lost me on how this is adding any points of potential
lightning. Sans surge protector, you'd have:

[CPU]--serial-cable--[modem]--phone-line--wall
 |                      |
 |                  power cord
 |                      |
 +-[surge protector]---wall

With a surge protector, you have this:

[CPU]--serial-cable--[modem]--phone-line-+
  |                     |                |
  |		    power cord           |
  |		        |                |
  |                     +------[surge protector]--wall
  |                              |       |
  +-------power-cord-------------+       |
		                         |
					wall


In either case, lightning comes in from the wall, but in the second
case, you're protected wherever it comes from.

Where's the misunderstanding?

good times,
Vineet
-- 
http://www.doorstop.net/
-- 
http://www.aclu.org/

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