
3 Windows Driver
Automatic Hardware Flow Control by DTR/DSR
Figure 20: Auto DTR/DSR
This panel selects the function of DTR/DSR Hardware Flow control. This function of the UART
offers more options.
Control kind How DTR is intended to operate.
Disabled: No Flow control for receive.
Triggered: Flow control similar to RTS Enable.
RS485 Low Active: This can be used to control a converter RS232RS485, see below. DTR
is low while data is transmitted.
RS485 High Active: This can be used to control a converter RS232RS485, see below. DTR
is high while data is transmitted.
DTR on Compare the slider of RTS on.
February 2010 VScom PCIex Card User Manual 30
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