TYAN S1572 ATX User Manual page 12

I/O Port Setting: J15 and J16
Speaker Connector: J8 pins 24-27
HDD LED: J8 pins 13-14 and pins 15-16
Infra Red Interface: J8 pins 8-11 and J2
S1572-001-01 http://www.tyan.com
J15
For Serial Port 1-2
For IR Port 2-3
Pinout Assignments
1 Speaker out
2 Ground
3 NC
4 + 5V
Pinout Assignments
13 Anode
14 Cathode
15 Anode
16 Cathode
Pinout Assignments
1(8) Signal In
2(9) Gnd
3(10) Signal Out
4(11) VCC
12
J16
1-2
2-3