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Re: In line surge supression

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  • wuhu_software
    Bob, You can do that if you can pick up a ground near the console. Not sure the toroid traps would help with EM energy from a lightning strike. ... As ...
    Message 1 of 6 , Jun 21, 2008
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      Bob,

      You can do that if you can pick up a ground near the console.

      Not sure the toroid traps would help with EM energy from a lightning
      strike.


      --- In wuhu_software_group@yahoogroups.com, "RS Moreland"
      <bobmoreland@...> wrote:
      >
      > If I understand you correctly, that the surge protector would only
      > protect after the devise, then why not put one in front of the
      > console? that way you would be protecting the console and com port.
      As
      > far as the hydro/themo sensor is concerned, perhaps a toroid trap on
      > each line from the wind and rain sensor might cover it ($6.00 at
      Radio
      > Shack). Total $30.+
      > Bob
      >
      >
      > --- In wuhu_software_group@yahoogroups.com, "wuhu_software"
      > <wuhu_software@> wrote:
      > >
      > >
      > > Bob,
      > >
      > > You are correct that the surge supressors designed for use with
      > > telephones are designed to work with AC voltages (40-150V)
      whereas
      > > the serial lines on the PC are DC (+ / - 12V).
      > >
      > > I am not sure, but my guess is that in the event of a surge, the
      > > protector basically channels the energy to ground at the surge
      > > device. When this happens, the device that is "upstream" from the
      > > protector will probably be damaged from the surge.
      > >
      > > For example, if you have an inline serial port protector (like
      the
      > > one at buy.com), the PC will be spared from damage, the console
      will
      > > be damaged. This scenario happened to me.
      > >
      > > If you add a protector between the console and the remote thermo,
      the
      > > remote thermo will probably suffer the damage.
      > >
      > > It would have been a smart idea for La Crosse (and other wired
      > > stations) to have integrated the protection in the weather
      station
      > > and sensors. This would have only added to their cost a tiny
      amount
      > > (avalanche diodes are the key).
      > >
      > > The cost of adding these surge protectors to existing stations
      > > becomes prohibitive at some point. Since you can purhase the
      station
      > > for $80, I doubt you would want to buy $80 worth of surge
      supressors
      > > to protect the entire system. That would be like buying insurance
      > > that costs 100% of what it is you are trying to protect and
      paying it
      > > upfront.
      > >
      > > My suggestion is to save your PC from damage. Although most lose
      > > their serial ports, my guess is that the motherboard could easily
      > > become damaged as well. That could cost you quite a bit depending
      on
      > > the age of the computer, let alone the value of the data on the
      hard
      > > drives.
      > >
      > >
      > > --- In wuhu_software_group@yahoogroups.com, "RS Moreland"
      > > <bobmoreland@> wrote:
      > > >
      > > > Mr WUHU,
      > > >
      > > > Thanks for the ideas' and links. I've done some research and
      it's
      > > not
      > > > fun nor informative in some cases.
      > > >
      > > > Serial data signal levels seems to be the problem. Most have
      RJ45
      > > > connections, the others with RJ11's refer to phone/fax
      protection. I
      > > > emailed tech support at Cyber Power and the answer was theirs
      only
      > > > protects the middle two wires for a single phone line. I did
      not get
      > > > the details on protection levels which I understand are at much
      > > lower
      > > > voltages.
      > > >
      > > > Still no answers but for now I will protect all the equipment
      with a
      > > > 120v surge protector.
      > > >
      > > > Regards, Bob
      > > >
      > > >
      > > > --- In wuhu_software_group@yahoogroups.com, "wuhu_software"
      > > > <wuhu_software@> wrote:
      > > > >
      > > > >
      > > > > Bob,
      > > > >
      > > > > Although it might be possible to use multiple surge
      supressors, I
      > > would
      > > > > make protecting the PC the priority. The below surge
      protection
      > > can be
      > > > > used with the Inspeed wind sensor for those who have added it
      as
      > > an
      > > > > option.
      > > > >
      > > > > Here is an inline serial port protector that goes between
      your PC
      > > and
      > > > > the console:
      > > > >
      > > > > Inline DB9 Serial Port Surge Supressor at Buy.com
      > > > >
      > > > <http://www.buy.com/prod/network-dataline-db9-inline-serial-
      port-
      > > protect\
      > > > > or-rs-232/q/loc/101/201643269.html>
      > > > >
      > > > > You might be able to use other surge supressors between the
      > > console and
      > > > > the remote thermo although I was told that the supressor must
      be
      > > located
      > > > > near the device it is protecting and that a connection to
      ground
      > > should
      > > > > be close by as well. Whether you could run a ground wire to
      the
      > > > > supressor I do not know. My guess is that it would not be
      > > recommended.
      > > > > Perhaps you could run a wire a few feet to the PC case.
      > > > >
      > > > > Here is one that is for serial data signal levels that will
      take
      > > RJ-11s.
      > > > > You might be able to use this device between the console and
      the
      > > remote
      > > > > thermo. It has a separate lead that must be connected to
      ground.
      > > > >
      > > > > The model # is SP105 and can be seen on this page:
      > > > >
      > > > > http://www.qvs.com/dataline-default.asp
      > > > > <http://www.qvs.com/dataline-default.asp>
      > > > >
      > > > > At roughly $20 per surge protector, it does not take long
      before
      > > you are
      > > > > spending as much to protect the device (weather station), as
      a
      > > new unit
      > > > > would cost ($80).
      > > > >
      > > > >
      > > > > --- In wuhu_software_group@yahoogroups.com, "RS Moreland"
      > > > > <bobmoreland@> wrote:
      > > > > >
      > > > > > Greetings all,
      > > > > >
      > > > > > My LaCrosse 2310 running wireless has been losing signals a
      lot
      > > > > > lately, also staying off for hours in some cases. Have
      tried
      > > all the
      > > > > > fixes I can think of to no resolution. The station has been
      > > fine for
      > > > > > the last 3 days with the usual missed updates 969/1052.
      > > > > >
      > > > > > So, I'm thinking about going back to running wired with the
      > > cat5e
      > > > > > cable I've already made up.
      > > > > >
      > > > > > The question is, how do I setup a line supression system?
      or
      > > device?
      > > > > > In-line between temp/humid sensor and console? Console to
      PC?
      > > Both?
      > > > > >
      > > > > > All ideas are appreciated.
      > > > > > Thanks, Bob
      > > > > >
      > > > >
      > > >
      > >
      >
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