SOYO SY-P4-645DX DRAGON Ultra User Manual page 26

Hardware Installation
When connecting an external device, use the following figure to locate and
identify which back panel connector to plug the device to.
1. Onboard Serial Ports COM1/COM2
External peripherals that use serial transmission scheme include:
- serial mouse
- modem
Plug the serial device cables directly into the COM1/COM2 9-pin male
connectors located at the rear panel of the motherboard.
2. Parallel Port PRT
This parallel port is used to connect the printer or other parallel devices.
Plug the parallel device cable into the 25-pin female connector located at the
rear panel of the motherboard.
3. PS/2 Keyboard
Plug the keyboard jack directly into the 6-pin female PS/2 keyboard
connector located at the rear panel of the motherboard.
4. PS/2 Mouse
Similarly, plug the mouse jack directly into the 6-pin female PS/2 mouse
connector.
Pin6
NC
Pin4
VCC
Pin2
NC
Pin6
NC
Pin4
VCC
Pin2
Mouse DATA
NC
SY-P4-645DX DRAGON Ultra
Pin5
KBD Clock
Pin3
GND
Pin1
KBD DATA
Pin5
Mouse Clock
Pin3
GND
Pin1
22