ADLINK MXE-5400 - Manual (Page 71)

PRELIMINARY
BIOS Setup 59
MXE-5400
Onboard Device Configuration
COM1 Control
Select COM1 mode from among RS232, RS422 or RS485.
COM2 Control
Select COM2 mode from among RS232, RS422 or RS485.
LAN #1 (Intel I217)
Enables/disables onboard Intel I217 LAN controller.
Launch PXE OpROM
Enables/Disables execution of LAN boot-rom to add boot
option for legacy network devices.
LAN #2 (Intel 210)
Enables/Disables onboard Intel 210 LAN controller.