User guide

7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
8. USB 2.0 ports 3 and 4.
These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
9. COM port.
This 9-pin COM1 port is for pointing devices or other serial devices.
10. PS/2 keyboard port. This port is for a PS/2 keyboard.
1.10.2 Internal connectors
1. Floppy disk drive connector (34-1 pin FLOPPY)
This connector is for a Floppy Disk Drive (FDD) signal cable. Insert one end of the
cable to this connector, then connect the other end to the signal connector at the back
of the oppy disk drive.
• Pin 5 on the connector is removed to prevent incorrect cable connection when using an
FDD cable with a covered Pin 5.
• The Floppy Disk Drive singal cable is purchased separately.
M2N68 SE
M2N68 SE Floppy disk drive connector
FLOPPY
NOTE:Orient the red markings
on the floppy ribbon cable to PIN 1.
PIN1
2. Speaker connector (4- pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
M2N68 SE
+5V GND GND Speaker Out
SPEAKER
PIN 1
M2N68 SE Speaker Out Connector
Chapter 1: Product introduction 1-19