Advantech EDG-4508, User Manual

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58 EDG-4508/4516 User's Manual
Server Properties-Transmission
The Transmission page allows the user to set the Transmission Mode
and Tx FIFO options for each of EDG-4508/4516 ’s ports.
Transmission Mode
Select Hi-Performance to use buffering technology to accelerate data
writing. This allows your communication software to reach maximum
data throughput when transmitting large amounts of data. The driver will
notify the user that the transmission is completed when the output data
length is lower than the LOW WATER setting.
Classical Mode lets the port behave like a generic COM port. Transmis-
sion of small data packets is more precise and reliable. In this case, the
driver will notify the user that the transmission is complete when all data
has been transmitted.
Tx FIFO
Set to Enable to the get the best performance from the board.
Set to Disable to avoid data loss when communicating with plain commu-
nication devices using S/W flow control. In this case only one byte will
be put into the UART when the FIFO is empty.