IBM CI5VGM Series, Руководство пользователя

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Chapter 2 Installations
CI5VGM User’s Manual 31
J8: 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
status. J8 is a 20-pin header that provides interfaces for the following
functions.
Hard Disk Drive LED
Reset Switch
Turbo LED Connector
ATX Power On Switch
Not Defined
Power LED and Keylock
Speaker
Speaker: Pins 1 - 4
This connector provides an interface to a speaker for audio
tone generation. An 8-ohm speaker is recommended.
Pin # Signal Name
1 Speaker out
2 No connect
3 Ground
4 +5V
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.
Pin # Signal Name
11 Power LED
12 No connect
13 Ground
14 Keylock
15 Ground