![background image](http://html2.mh-extra.com/html/ibase-technology/mb880/mb880_user-manual_3267963024.webp)
INSTALLATIONS
20
MB880 User’s Manual
J13: System Function Connector
J13 provides connectors for system indicators that provide light
indication of the computer activities and switches to change the
computer status.
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: Pins 11 - 13
The power LED indicates the status of the main power
switch.
Pin #
Signal Name
11
Power LED
12
No connect
13
Ground
Keyboard Locked: Pin 14-15
To use keyboard lock, set pin14/15 to short/closed
Pin #
Signal Name
14
Keyboard lock
15
Ground
Summary of Contents for MB880
Page 4: ...iv MB880 User s Manual This page is intentionally left blank...
Page 8: ...INSTALLATIONS 4 MB880 User s Manual Board Dimensions...
Page 32: ...INSTALLATIONS 28 MB880 User s Manual This page is intentionally left blank...
Page 65: ...DRIVERS INSTALLATION MB880 User s Manual 61 This page is intentionally left blank...