Moxa Technologies 5400 Network Card User Manual


 
Configuring Windows Administrator
Select COM Setting to modify COM No., default setting, etc.
Select the COM No.
Those “In use,” “Assigned” COM ports will also be indicated in this dialog
window.
If you select multiple serial ports or multiple NPorts, remember to check the
“Auto Enumerating” function to use the COM No. you select to be the first
COM No.
Hi-performance mode is the default for Tx mode. If the driver
completes sending data out to the NPort, the driver will respond Tx
Empty to the program.
But, under "classical mode", the driver will not notify the user’s
program that Tx is completed until all Tx data has been sent out
from the NPort; this mode will cause lower throughput.
If you want to make sure all data is sent out before further
processing, classical mode is recommended.
Enable/Disable Tx/Rx FIFO. If disabled, NPort will send one byte
each time the Tx FIFO becomes empty; and Rx interrupt will be
generated for each incoming byte. This will cause faster response
and lower throughput. If you want to use XON/XOFF flow control,
we recommend setting FIFO to Disable.
NPort 5400 Series User’s Manual
6-15