Specifications

1-26 Chapter 1: Product introduction

15. Optical S/PDIF Out port. This port connects an external audio output device

via an optical S/PDIF cable.

16. USB 2.0 ports 5 and 6.

These two 4-pin Universal Serial Bus (USB) ports

are available for connecting USB 2.0 devices.

1.10.2 Internal connectors

1. Floppy disk drive connector (34-1 pin FLOPPY)

This connector is for the provided oppy 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.

M2N68-VM

Floppy Disk Drive Connector

Pin 5 on the connector is removed to prevent incorrect cable connection when

using an FDD cable with a covered Pin 5.

2. Chassis intrusion connector (4-1 pin CHASSIS)

This connector is for a chassis-mounted intrusion detection sensor or switch.

Connect one end of the chassis intrusion sensor or switch cable to this

connector. The chassis intrusion sensor or switch sends a high-level signal to

this connector when a chassis component is removed or replaced. The signal

is then generated as a chassis intrusion event.

By default, the pins labeled “Chassis Signal” and “Ground” are shorted with

a jumper cap. Remove the jumper caps only when you intend to use the

chassis intrusion detection feature.

M2N68-VM

Intrusion Connector

CHASSIS

+5VSB_MB

Chassis Signal

GND

(Default)