USB485 Converter

[Mohan V]

Hello All,

I have a PROMAG USB485 converter. When I connected it to my PC having 
Redhat 9, the device gets recognised and a device node (ttyUSB0) is 
created. I want to check the data communication between 2 such USB485 
converters. So, I connected the USB485 devices to 2 PCs, running
Redhat 9. I am able to open minicom on the created device nodes on both 
PCs. But when I send some data from one PC, it is not received at the 
other PC. I have tried with linux-2.6.11 and linux-2.4.31 also on
Redhat 9. I also tried using PCs with Fedora Core 3. But I am not able 
to exchange data.
I tried the same thing with 2 PCs having Mandrake 10 and it works 
perfectly fine. So, I wanted to know what might be the problem.

Thanks for your time.

Regards,
Mohan V.