Posted by Rob  - AK9G in the HRD forum...

The Keyspan 4 Port USB to Serial Adapter allows you to connect up to four (4) High Speed 230 Kbps serial devices (RS-232) to a single USB port. The model is: USA-49WLC and it's available from many computer suppliers. I got mine for $129 from www.PCConnection.com. The unit works great with HRD and the control software's a breeze! See http://www.Keyspan.com/products/usb/USA49w/ for further information. They also sell a USB to Serial cable if only one serial port is required.

At first, I didn't think I needed four (4) serial ports. But, now that HRD supports rotator control, I've got my rig connected to one com port; my HRD controlled rotator connected to another com port; with another com port for programming code plugs into my various HTs; and one still available on the Keyspan adapter.

Although, Keyspan is very well known in the industrial and commercial computer marketplace, apparently, the brand is not well known in the HAM realm as I was the first to create a review category and post a description and review of the item on eham.net: http://www.eham.net/reviews/detail/5395

I haven't had a single problem with the unit.
_________________
Very 73,

Rob - AK9G
(prev. K6RSG)

Relayed by José F5JD

Jim Lux a écrit :
Folks,
I've got a need to have more than one RS232 hooked up to the "legacy free" 
laptop I now have. Bad enough to have the sound interface, the webcam, the 
parallel, etc.  but I'm running out of USB hubs..

Any experiences good/bad with any of the 2 or 4 port USB<>serial 
widgets.  Likewise for parallel (although I confess I've never seen any of 
those with multiple outputs, but never hurts to ask)



James Lux, P.E.
Spacecraft Radio Frequency Subsystems Group
Flight Communications Systems Section
Jet Propulsion Laboratory, Mail Stop 161-213
4800 Oak Grove Drive
Pasadena CA 91109
tel: (818)354-2075
fax: (818)393-6875



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