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Chapter 1 Hardware Installation 21
Step 9 Attach Cables, Continued
J12 Keyboard Connector The keyboard connector is a 6-pin DIN socket. The pinout is shown
below.
Pin Assignments
1 Keyboard clock
2 Keyboard data
3, 6 Not used
4 Ground
5 VCC
Connect Mouse Cable The mouse connector (J2) is a 10-pin berg. The mouse cable is the same as
the serial cable in the motherboard. Two serial cables are shipped with the
motherboard. Use one of these cables for the mouse, or make your own cable.
The pinout is:
Pin Description Pin Description
1 Mouse Clock 2 N/C
3 N/C 4 N/C
5 N/C 6 VCC
7 N/C 8 Mouse Data
9 Ground 10 N/C
J29 Chassis Door Intrusion J29 is a 2-pin berg that can be used to attach a wire to the chassis
door intrusion connector, if the chassis has this feature. The logic must be set
so that Pin 1 and Pin 2 are shorted when the chassis door is closed and open
when the chassis door is opened.
J18 External SMI J18 is a 3-pin berg. An external SMI (System Management Interrupt) source
can be connected to J18. When an external SMI needs to generate an SMI to
the system, Pin 1 must be shorted to Pin 2 (as a pulse).
Cont’d