plop at redbrick.dcu.ie
Sat Sep 9 21:54:28 IST 2000
In reply to Niall O Broin's flatulent wordings,
> On Sat, Sep 09, 2000 at 09:52:44AM +0100, Smelly Pooh wrote:
> > Serial port TAs don't usually cost over 300... well depends on what make/model
> > and where you buy them I suppose but I've rarely seen them that expensive.
> Last time I looked (quite some time ago) they were that kind of price. I
> just had a quick look at Scan - 3Com's TA is ~ £300 but they have an Asus
> for about £100, and as I was quoting the price of the Asus internal . . .
3com aren't exactly known for selling cheap hardware (although a web search
says it costs closer to the 200 mark), it's hardly fare quoting the prices of
the upper range of external TAs against the lower range of internals (I don't
think I've ever seen internal TAs for as low as 30 quid, but I have seen a lot
that cost over 50)
> > that most serial ports have then you should also consider that most internal
> > TAs are also restricted to 112KBPS.
> Where did you get this from ? An internal TA is on the ISA/PCI bus and
> accordingly can receive data as fast as the bus can send it and it can take
> it. Why should it be restricted to 112KBPS ?
Actually, now that you mention it, I don't know why I said that. I remember
reading many moons ago that internal TAs used UART 16550 chip for some obscure
reason or other, I wasn't fully convinced back then either
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