We use USB-RS232 cables extensively and have had nothing but problems
with all of the consumer-grade products. We found these:
http://www.moxa.com/product/usb_to_serial_converter.htm
We tested a couple of the single & octal port versions for awhile and
found zero problems. Zero. They work flawlessly up to 921kBaud. We
recently made an order for about 20 single port, 25 quad port, and 2
of the 32 port Ethernet to Serial products. When they came in we
handed them out and gathered up all the FTDI & Prolific-based consumer
cables and threw them in the trash.
Moxa uses their own hardware & writes their own drivers. This stuff
is industrial grade and just *works*. You can bind a physical port to
a COM port address on your host so it doesn't change if you move the
device to a different USB port. The single port UPort 1110 is priced
around $65, the quads around $400..
Scott Ribe wrote:
Can anyone point me to a source for purchasing a small quantity of
USB->serial converters based on the FTDI chip? I thought I had
located one,
and purchased samples of FTDI & Prolific ones, but they're all Prolific.
(The buy online link on FTDI's site is... not useful...)
Why, you ask? Well, I've been having hideous problems with USB
drivers under
Snow Leopard (for a fax server, first with MultiTech USB modem, then
with
KeySpan USB->serial drivers), so I wanted to install both and stress
test
both at the same time, possibly doubling my chances of finding a
reliable
one in the near future ;-)
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Usb mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden
