J15: Front Bezel Connector - TMC AI5TT User Manual

5.12 J15: Front Bezel Connector

The front bezel of the case has a control panel which provides light
indication of the computer activities and switches to change the
computer's status. J15 is a 20-pin header that provides interfaces for the
following functions.
Hard Disk Drive LED
Turbo LED Connector
Dual Function Power Button
Speaker
Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio
tone generation. An 8-ohm speaker is recommended.
Power LED and Keylock: Pins 11 - 15
The power LED indicates the status of the main power
switch. The keylock switch, when closed, will disable the
keyboard function.
AI5TT Pentium Baby AT Motherboard User's Manual
Chapter 5 Installation
Reset Switch
Not Defined
Power LED and Keylock
Pin # Signal Name
1 Speaker out
2 No connect
3 Ground
4 +5V
Pin # Signal Name
11 Power LED
12 No connect
13 Ground
14 Keylock
15 Ground
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