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Old 03-03-2014, 06:51 PM   #1
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RHEL - Windows Serial communication + serial to USB adapters

So... I have a RHEL 5.8 running on a Dell's PowerEdge R720, and i need to use two USB to serial adapters on both machines, I need to send and receive text messages between this machines.

On Windows 7, I'm using the Hercules serial terminal, configured to 9600 baud, 8 data size, no parity, and no handshake.

When i plug in the USB to serial adapter on the RHEL machine, ttyUSB0 shows up, this makes me think that the Kernel recognize the adapter, and the same for windows, a COM# port becomes available.

On RHEL, i'm using cat /dev/ttyUSB0 9600 cs8 -cstopb -parenb and echo "This is my message" >/dev/ttyUSB0 commands trying to send and receive messages but nothing show up.. so.. Thanks in advance
Old 03-03-2014, 11:51 PM   #2
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It would be easier if you used an terminal application like minicom instead of cat.

Make sure you use a NULL MODEM serial cable when connecting two PCs.
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Old 03-04-2014, 10:03 AM   #3
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Agree with michaelk totally...a null-modem is probably the culprit here. That's something that would snakebite people a LOT years ago.


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