GVC KR632, User Manual, Page: 23 / 56

23
Front Panel connectors:
Speaker Connector or Onboard Buzzer (J20, 4-pin)
It is used to drive a chassis-mounted speaker.
This header can select between the chassis
speaker or internal buzzer by installing a cap over
pin1&2. When the chassis mounted speaker is
needed the jumper should be removed.
Reset Switch Connector (J21, 2-pin)
This connector supports the front panel case-
mounted reset button. It is advised that the reset
switch be used for rebooting the system in order to
extend the life of the system’s power supply.
Power LED/Sleep/Message Waiting (J22, 3-
pin)
This header can be connected to an LED that will
light when the computer is powered on.
LED Status Description
Light Off Power Off
Light On Power On
Flash Sleep
3. INSTALLATION
S p e a k e r R e s e t P w r L E D H D L E D I r D A S l e e p P w r
J 2 0 J 2 1 J 2 2 J 2 3 J 2 4 J 2 5 J 2 6
Speaker
J20
SpkrDat
Buzzer/Speaker Sel
Logic Ground
Reset J21
Ground
Reset
P w r L E D J 2 2
LED +
LED -