TYAN TITAN VX AT User Manual page 11

I/O Port Setting: J10 and J11
Speaker Connector: J41
Turbo Switch: J42
Non-Turbo mode
not supported by chipset.
HDD LED: J12
Infra Red Interface: Con11 and Con12
S1470-001-01 http://www.tyan.com
Default For Serial Port 1-2
For IR Port
Pinout Assignments
1 Speaker out
2 NC
3 Ground
4 + 5V
Open for Turbo
Close for Non-Turbo
Pinout Assignments
1 Cathode
2 Anode
3 Anode
4 Cathode
Pinout Assignment
1 Signal In
2 Gnd
3 Signal Out
4 VCC
11
J10 J11
1-2
2-3 2-3