American Megatrends Merlin DP, Руководство пользователя, Страница: 19 / 69

Chapter 1 Hardware Installation
Step 5 Attach Cables,
Continued
J11 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 (J7 ) 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
PS/2 Mouse IRQ
J23 is a three – pin berg that enables the PS/2 mouse interrupt (IRQ12). Short
Pins 1 – 2 of J23 to enable IRQ12 as the PS/2 mouse interrupt. You should
always short Pins 1 – 2 of J23 to enable the PS/2 mouse interrupt. The only
reason you would ever have to short Pins 2 – 3 of J23 is if you wanted an
adapter card on the ISA bus to use IRQ12. You would then have to set the
Mouse Support option in Advanced Setup to Disabled.
J23 Pins 1-2 Shorted
IRQ12 used for PS/2 Mouse
Cont’d