RE: Re: Dwindling serial ports

["Ian B" <Ian@xxxxxxx>]

I have just received a USB to serial device costing £30. Two points to note
though. The serial connector is solder contacts and the unit outputs ttl
voltages not true serial voltages. The best answer here is to add a Maxim
converter chip to get the +- 12 volts from the 5 and 0 of the unit. I can
help with the connections if anyone wants. Sometimes you can get away with
ttl voltages, trial and error. The devices are from www.ftdichip.com and
come uncased. Look under evaluation kits to find them. They come with
royalty free drivers to make the port appear as a com port.

Ian

-----Original Message-----
From: paulgwa [mailto:paulgwa@xxxxxxx]
Sent: 15 January 2002 17:03
To: ukha_d@xxxxxxx
Subject: [ukha_d] Re: Dwindling serial ports


Does anybody know where I can source Serial card suitable to go
inside a slim line case (NEC PowerMate ML3) alternatively any USB to
RS232 adapters out there?

Paul

--- In ukha_d@y..., "Justin" <justin@g...> wrote:
> Startech 2 port PCI card on Ebay. I got one back in Nov for £8.50.
IIRC they
> are about $70
> The guy is still selling them:
> http://cgi.ebay.co.uk/aw-cgi/eBayISAPI.dll?ViewItem&item=1319819923
>
> Justin.



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