Archived from groups: microsoft.public.windowsxp.hardware (More info?)
Hi all,
Have tried three different brands in two different XP machines, and have
the same problem on all.
Problem is:
PCI cards install fine, and appear to be correct in DevMgr.
Using Hyperterminal, connect from onboard com port (COM1) to PCI serial
card com port (COM3 or COM4) using a crossed serial cable.
Transmit from COM1 to COM3/4 works just fine. Characters received.
Transmit from COM3/4 to COM1, and we get no characters.
Have tried swapping the cable around, and same result.
Have tried installing Win2k, and it works in both directions!!
I'm really stuck on this one. It appears to be caused by WinXP, because:
1. It works under Win2k.
2. All three different brand PCI serial cards have the same problem.
3. Same problem exists on DELL Dimension PC, and Commell PC board.
Greg
Hi all,
Have tried three different brands in two different XP machines, and have
the same problem on all.
Problem is:
PCI cards install fine, and appear to be correct in DevMgr.
Using Hyperterminal, connect from onboard com port (COM1) to PCI serial
card com port (COM3 or COM4) using a crossed serial cable.
Transmit from COM1 to COM3/4 works just fine. Characters received.
Transmit from COM3/4 to COM1, and we get no characters.
Have tried swapping the cable around, and same result.
Have tried installing Win2k, and it works in both directions!!
I'm really stuck on this one. It appears to be caused by WinXP, because:
1. It works under Win2k.
2. All three different brand PCI serial cards have the same problem.
3. Same problem exists on DELL Dimension PC, and Commell PC board.
Greg
Pci Multiport Serial Controller Driver Update
The other device's hardware ID decodes to a Quatech DSC-100 PCI Two-Port RS-232 Serial Adapter. I have zipped up and attached the driver you need from the manufacturer's website (Under Attachments below).