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Pegasus PCI Motherboard User’s Guide
16
Step 9 Attach Cables, Continued
J10 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 (J1) 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
J23 Chassis Door Intrusion J23 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.
J30 External SMI J30 is a 2-pin berg. An external SMI (System Management Interrupt)
source can be connected to J30. 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