Lindy RS-422/485 - Manual (Page 21)

Click the “Advanced” button to set more advanced features.
(3) Configure the “Enable Auto CTS/RTS Flow Control ”,“ 16/32 bytes FIFO
length and Receive/Transmit Buffer trigger level if you want to change these
settings
(The 128K software FIFO adjustment only supports Microsoft Windows 2000
/ XP / 2003 OS. You can change the FIFO size and COM port Number as
you need.)
The window below would be shown under Windows 2000/XP/2003.
The window to the right would be
shown under Windows 95/98SE/ME.
*Enable Auto CTS/RTS Flow Control
means the CTS/RTS flow control is
controlled by hardware automatically.
The system will be more stable if the
function is enabled.
*Setting the Receive/Transmit Buffer to a higher value will get faster
performance because the CPU interrupts will be reduced, but the time for
interrupt service routine will become shorter. If the system is not stable, reset
the lower value to solve problem.
- 19 -