Air 486PH, User Manual, Page: 17 / 48

Power LED and Keyboard Lock Connector
The Power LED and Keyboard Lock connector (KLOCK) is 5-
pin keyed BERG strip. It is used to c5 VDC power to
the power indicator LED at the front panel and connect security
keyboard lock to the keyboard controller. This allows you to
switch off the keyboard and so provide limited security against
casual intruders. The pin assignments are indicated below:
Pin Description
1 Power LED
2 Key (No Connection)
3 Ground
4 Keyboard Lock
5 Ground
Speaker Connector
The Speaker connector (SPKR) is a 4-pin keyed BERG strip. It
is used to connect an external 2-inch, 8-ohm speaker to the
system board to provide sound capability. The pin assignments
are defined below:
Pin Description
1 Speaker Data Out
2 Key (No Connection)
3 Ground
4 +5 VDC