4.Serial port connector
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
COM1
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PIN 1 | DCD TXD GND RTS RI | |||
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The COM module is purchased separately.
5.Digital audio connector
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.
+5V | SPDIFOUT GND |
SPDIF_OUT
Ensure that the audio device of Sound playback is Realtek High Definition Audio (the name may be different based on the OS). Go to Start > Control Panel > Sounds and Audio Devices > Sound Playback to configure the setting.
The S/PDIF module is purchased separately.
Chapter 1