RE: TTL converter advice req

["Kevin Hawkins" <lists@xxxxxxx>]

It would be helpful if you knew if the alarm used hardware handshaking -
because you may need these lines and also have to level convert them too.
It
may use XON/XOFF which is a software handshaking alternative or indeed no
handshaking at all.
Kevin

> -----Original Message-----
> From: Justin [mailto:justin@xxxxxxx]
> Sent: 08 March 2002 11:20
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] TTL converter advice req
>
>
> Turns out Maxim is opposite the place where I got my alarm, 5
> mins from my
> house!
> I'll pop round there later, what else shall I try & blag? :-)
>
> Mark,
> yep, it's the Powermax. According to wireless-alarms.co.uk it
> is TTL (look
> under pricing for Powermax software).
> I don't know the pinouts, but I'm going to try and find out
> (or guess!)
>
> Ant,
> It's a poor man's Comfort ;-)
>
> Thanks,
>
> Justin.
>
> -----Original Message-----
> From: Steve Morgan [mailto:wormpurple@xxxxxxx]
> Sent: 08 March 2002 10:37 AM
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] TTL converter advice req
>
>
> Alternatively, contact Maxim and get two free MAX233 samples.
> This required
> no external components whatsoever.
>
> Steve
>
> > -----Original Message-----
> > From: ant skelton [mailto:ant@xxxxxxx]
> > Sent: 08 March 2002 09:23
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] TTL converter advice req
> >
> >
> > On Friday 08 March 2002 09:14, you wrote:
> >
> > > My question is, is an RS232 TTL converter a standard thing?
> > i.e could I buy
> > > one off the shelf and knock something up for less than 63?
> >
> > Yep, see the recent thread on barcode scanners. You can knock up
a
> > ttl<->serial convertor for about 2 quid. It consists of a
> > single chip (a
> > max232 or equivalent) and about 5 capacitors. It's a no brainer.
> >
> > 63 quid? Must be Comfort ;)
>
>
>
>
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