H8DCE User's Manual Power LED/Keylock/Speaker On the JF2 header, pins 2, 4 and 6 are for the power LED, pins 8 and 10 are for the keylock and pins 1, 3, 5 and 7 are for the speaker (there is no pin 9). See the tables on the right for pin defi nitions and below right for pin locations Note: The speaker connector pins are for use with an external speaker. If you wish to use the onboard speaker, you should close pins 5 and 7 with a jumper. Toward speaker JF2 Pinout 1 2 3 4 5 6 7 8 9 10 Toward end of board ATX PS/2 Keyboard and PS/2 Mouse Ports The ATX PS/2 keyboard and the PS/2 mouse ports are located at J3. The mouse is the top (green) port. See the table on the right for pin defi nitions.
Chassis Intrusion A Chassis Intrusion header is located at JL1. Attach the appropriate cable to inform you of a chassis intrusion. 2-12 Speaker Connector Pin Defi nitions (JF2) Pin# Defi nition 1 Red wire, speaker data 3 NC 5 Buzzer signal 7 Speaker data Pwr LED/Keylock Connector Pin Defi nitions (JF2) Pin# Defi nition 2 +Vcc 4 -Vcc 6 -Vcc 8 Keylock 10 Keylock PS/2 Keyboard and Mouse Port Pin Defi nitions (J3) Pin# Defi nition 1 Data 2 NC 3 Ground 4 VCC 5 Clock 6 NC Chassis Intrusion Pin Defi nitions (JL1) Pin# Defi nition 1 Intrusion Input 2 Ground