ECS A740GM-M Manual page 23

CD_IN: Analog audio input connector
Pin Signal Name
1
CD_L
2
GND
3
GND
4
CD_R
SPDIFO: SPDIF out header
This is an optional header that provides an S/PDIF (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
Pin Signal Name
1
SPDIF
2
+5VA
3
Key
4
GND
IR: Infrared header
The motherboard supports an Infrared (IR) data port. Infrared ports allow the wire-
less exchange of information between your computer and similarly equipped devices
such as printers, laptops, Personal Digital Assistants (PDAs), and other computers.
Pin Signal Name
1
NC
2
Key
3
+5V
4
GND
5
IRTX
6
IRRX
Installing the Motherboard
Function
Left CD-in signal
Ground
Ground
Right CD-in signal
Function
SPDIF digital output
5V analog Power
No pin
Ground
19