User manual

Chapter 2
16
A55F2-M3 USER MANUAL
4. COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a serial port to your
system.
This is an optional header that provides an SPDIFO (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
5. SPDIFO: SPDIF out header