Re: XTB-II Options

["Dennis" <djr-google.djrlar@xxxxxxxx>]

Jeff,

I am still trying to understand why you don't offer an XTB that can
amplify any X10 signal on the line as apposed to being limited to only
those plugged into it. I'm honestly not criticizing, but here's my
reasoning:

1. Yes, there are current amplifiers, but they are low power units.
2. Since I would have several sources of X10 signals, HA controller,
CM11, RF receivers, etc, all of which need amplification, but could not
be located in a central location for practical operational purposes,
the current design of the XTB would require multiple units.

Is there some technical/legal reason why you couldn't produce a unit
like the new XTB II unit that received, amplified, and retransmitted
the amplified signals from either leg of the power system?

This to me would be the ideal design.

This would be a unique, and superior, product  and not just another
me-to in the X10 amplifier market.

Thanks
Dennis
Jeff Volp wrote:
> I finished initial schematic capture for the XTB-II.  It will not be a
> replacement for the present XTB, which will remain the convenient plug-in
> booster for just about any X10 transmitter.
>
> The basic XTB-II will include two output coupling networks to drive both
> sides of a 240V distribution panel.  It will be in a larger case with a
> terminal strip to connect to the AC line.  The receive amplifier and AC
> filter network will be able to drive several X10 transmitters connected to
> its X10 input receptacle.  This version will cost about $20 more in
> components than the present XTB.
>
> The printed circuit board will also accept optional components for the
> XTB-II to emulate a TW523 interface.  This will add about $30 in components
> to the present XTB cost.
>
> A 240V version for the European market will just require a few component
> changes.  There will be plenty of room for the higher voltage capacitors.
> The terminal strip should make it easy to install whatever line connection
> is necessary for that particular country.
>
> Fully populated, the XTB-II has almost double the number of components that
> are in the present XTB.  The European version will be offered strictly as a
> kit.
>
> I will be working on the layout over the next week.  Most axial-lead
> components will again mount vertical to keep overall size down.  A DIP
> version of the op-amp will be used this time, and the PIC for TW523
> emulation will be socketed.  Suggestions anyone?
>
> Jeff