Re: Smarthome PowerLinc 1132B frequent failures

["random735" <random735@xxxxxxxxx>]

makes sense.  sounds like it was just a coincidence then, I guess it's
time to invest in
TW523.  Are there any theories on why the XTB might interfere w/ 1132B
plc reception, but not TW523 plc reception?  (i know, now i'm thread
jacking, sorry)


> "random735" <random735@xxxxxxxxx> wrote in message
> news:1165774288.726201.102770@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > not sure if i was one of the two or not (can't remember what i posted
> > re: this problem) but I did also have a 1132B fail on me, after it had
> > been hooked up to an XTB for some period of time.  I have no way of
> > knowing if the XTB had anything to do with it or not.  got it replaced
> > under warranty by smarthome but since then i haven't hooked up the new
> > one up to my XTB out of fear something about the signal boosting was
> > harming the module.
>
> I do have your order, but can't find any report from you regarding the
> 1132B.
>
> Actually, the XTB-II pretty much isolates the X10 transmitter from the
> powerline.  AC coming into the XTB is clamped by a MOV, and is provided to
> the X10 input recepacle through a damped low-pass filter.  That should
> prevent any transients from getting through.  The return signal amplifier is
> clamped with schottky diodes to less than 1 Vpp, so that certainly couldn't
> be a problem.  The XTB does put about a 25 ohm load on the transmitter at
> 120 KHz, but the TW523 spec says it tested with a 5 ohm load.  The XTB
> should be a very benign load to whatever is plugged into the X10 input
> receptacle.
>
> The only reason I suggest not pairing the XTB and 1132B is that two people
> did report commands were not getting through.  However the 1132B did work
> when plugged directly into the wall.  The XTB worked fine when they
> substituted the standard X10 interface for the 1132B.  I never heard
> anything else from either of these people.
>
> Jeff