691.2kbps RS485 PC interface?

[Dand]

I haven't been able to find a 691.2kbps PC interface card, like a PCI card.
They only seem to support the 250k 500k 960k etc. To hook up the device im
working with they want 2k$ for a 4 port 691.2k pci interface card.....

 

[MC]

Dand wrote:

I haven't been able to find a 691.2kbps PC interface card, like a PCI
card.
They only seem to support the 250k 500k 960k etc. To hook up the
device im
working with they want 2k$ for a 4 port 691.2k pci interface card.....

One reason could be is that 691.2kbps needs an uncommon baudrate
frequency if you don't want a lot of data errors.

 

[Jasen Betts]

On 2005-11-23, Dand <dand@dand.net.au> wrote:

I haven't been able to find a 691.2kbps PC interface card, like a PCI card.
They only seem to support the 250k 500k 960k etc. To hook up the device im
working with they want 2k$ for a 4 port 691.2k pci interface card.....

If you get the 960K model if it can't handle the rate natively it can
probably be modified by changing the crystal.

Bye.
Jasen