INSTALLATIONS
J11: Keyboard / Mouse Connector
J11, a 10-pin header connector, has functions for both keyboard and
mouse. The following table shows the pin assignments of this connector.
Signal Name Pin # Pin # Signal Name
Protect pin 10 5 N.C.
KB clock 9 4 Mouse clock
KB data 8 3 Mouse data
Vcc 7 2 Vcc
Ground 6 1 Ground
J12: Power On & Reset Headers
Pin # Signal Name
1 PS_ON#
2 Ground
Pin # Signal Name
3 RESET#
4 Ground
SW1: Digital I/O Input Pin Switch
LED1: Digital IO Output LED
LED2: HDD / Power LED
Red: HDD LED
Green: Power LED
CN2, CN3, CN4, CN5: LAN Connectors
CN2: LAN1
CN3: LAN2
CN4: LAN3
CN5: LAN4
CN6: USB Connector
MB890 User’s Manual 17