 Re: Increasing the number of Serial ports
Organization: Jet Propulsion Laboratory
Lines: 33
Distribution: world
NNTP-Posting-Host: mac4.jpl.nasa.gov

In article <>,   wrote:
> 
> Does anyone know if there are any devices available for the Mac which
> will increase the number of serial ports available for use
> simultaneously?  I would like to connect up to 8 serial devices to my
> Mac for an application I am working on. I must be able to access each
> one of the independently.
> 
> If such a device exists, are there are any limits to the number of
> serial devices I can use?
> 
> Any information is appreciated.
> 
> Steven Langlois
> 

The Quadralink by AE is a possibly problematical solution to your needs.
I've used one for the last 4  years on my personal system, but a fatal
bug has crept into their more recent s/w. The bug only shows up during
heavy serial traffic but completely crashes the system .

AE told me in January that they were aware of and working on fixing the bug
which I described to them. Since then they have not answered any of my
faxes asking them for a status of the bug-fix.

The QL has been great, but for now I have mine sidelined. If you are only
going to be using 2400 Baud or less, then you may have no, or very
infrequent problems,


-Sven
