Keyspan 19hs
- Thread starter PERSPOLIS
- Start date
bernie_carlton
Lifetime Supporting Member + Moderator
OK - one more time - no USB to Serial Port convertor works with the 1747-PIC.
The problem is that the protocol, DH485, requires the driver to be able to manipulate the serial port pins in a very time specific manner which the Windows drivers do not allow.
Even AB, with their USB device, is communicating to the device using a non-critical time dependent protocol, DF1. Inside the device the protocol is changed to DH485 and sent to an local serial device.
The problem is that the protocol, DH485, requires the driver to be able to manipulate the serial port pins in a very time specific manner which the Windows drivers do not allow.
Even AB, with their USB device, is communicating to the device using a non-critical time dependent protocol, DF1. Inside the device the protocol is changed to DH485 and sent to an local serial device.
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