
 Area: R-USR 
  Msg#: 7501                                         Date: 09-19-94  16:20
  From: Bill Garfield                                Read: Yes    Replied: No 
    To: Lee Bosch                                    Mark:                     
  Subj: I can't believe it!

 -=> Quoting Bill Garfield to Lee Bosch <=-

 LB>   I finally figured out what my problem with hooking to the H****
 
 LB>   MY BLOODY PHONE WIRING POLARITY WAS REVERSED!!!

 BG> Lee, if reversing polarity of the phone wires "fixed" your problem,
 BG> then I rather suspect that the problem was actually either:

 BG> 1.  A loose or corroded connection at the NI which you of course fixed
 BG> by mere accident in the course of making the wiring changes there,
 BG> or 
 BG> 2.  A polarity-sensitive phone device *other than* your modem which
 BG> was -causing- line loading or impedance problems.  This is why we
 BG> suggest disconnecting **everything**  when hunting for these
 BG> ghosts. 
 BG> Often times the most obvious area of concern is the one frequently
 BG> overlooked.  This is the overvoltage/spike protector built into
 BG> many of the A/C line conditioning units, uninterruptible power
 BG> supplies, PC master switch control units, and the plug-in phone line
 BG> protectors from Rat Shack.  -START- by disconnecting these.

 BG> I don't know where or how this polarity myth got going, but it's
 BG> nothing more than an old wive's tale.  The USR Courier modems are not
 BG> polarity sensitive, period. <-- Please note the period.

 BG> If reversing line polarity shows demonstrable, repeatable, conclusive,
 BG> and measurable performance differences, then there is indeed a
 BG> problem. Such problems would of course include the distinct possibility
 BG> of a damaged/defective modem.
 BG> ~~~~~~~ ~~~~~~~~~


 BG> * OLX 3.0 * HANGING: Bungee-jumping in beta trials


