Moxa Technologies C104H/PCI Series - Manual (Page 35)

Software Installation
Smartio C104H/PCI Series User’s Manual 3-21
7. Select a Tx FIFO Size from Tx FIFO Size pull-down list.
Tx FIFO sizes from 1 to 16 bytes are available, and the default value is 16
bytes.
8. Check Set the change to all ports check-box then the if desire to apply Tx
FIFO Size just defined to all ports.
9. Click [OK] button in Port X dialog box to confirm the port setting.
10. Click [OK] button in Property dialog box to complete the port setting.