Re: IrDA Repeater / Pace NTL Box

["paulgwa" <paulgwa@xxxxxxx>]

Forgot to mention that Agilent also have some info on using IrDA
modules for Sharp ASK Remote Control, take a look at the below URL if
interested

http://literature.agilent.com/litweb/pdf/5966-3967E.pdf

Regards

Paul


--- In ukha_d@y..., "paulgwa" <paulgwa@y...> wrote:
> Hi All,
>
> Newbies first post to the group, although have been reading with
> interest over the last couple of weeks and learning a great deal on
> HA.
>
> Just thought I would add my two penneth worth on the Ir discussions
> that are going on, this has probably already been covered somewhere
> in history.
>
> Graham Kiff posted some pictures of the inside of his Pace box
10/1,
> in the pic panel_front_left.jpg, the IR receiver is visible
> surrounded by a metal housing, my guess is that should you remove
the
> housing you will see the rest of an IrDA transceiver from someone
> like Agilent Technologies, Vishay or Infineon which has been
mounted
> vertically. They have blanked the transmitter side of the module
with
> the metal shield as they appear to be using two higher power T1 3/4
> (5mm) IR LED's to get a decent distance.
>
> Digressing a little there are four standard for IrDa:-
> IrDa1.0 115.2kbps link distance 1M
> IrDa1.1 4Mbps link distance 1M
> IrDa1.2 115.2kbps link distance 20/30cm
> IrDa1.3 1.15Mbps link distance >1.5M
>
> Given that this is only for bidirectional remote control I assume
> they are only using the 115.2Kbps solutions.
>
> The below URL is on the Agilent website and is a reference on IrDa
> design, including a section on distance extension, giving distances
> acheivable etc.
> http://literature.agilent.com/litweb/pdf/5988-1772EN.pdf
>
> Extended Systemes have some software libraries etc and also
finished
> products that may be of interest if you are going to use a PC as
the
> hub of the distribution system.
>
http://www.extendedsystems.com/ESI/Solutions/Wireless+Connectivity+Sol
> utions/default.htm.
>
> I haven't found any messages on how you are looking to do the
> distribution of these signals once you have them in the electrical
> domain but would be interested to learn more.
>
> If you have any problems sourcing small quantities of the IR
> transceivers,discrete LED's or 3/16 Endecs (This function is built
> into the Max chips you are looking at) for prototyping let me know
> and I will see what I can lay my hands on.
>
> Regards
>
> Paul