Ampro Corporation P5X manual Switch Descriptions S1 S4, J6 Power, J6 Pin Signal, J7 Keyboard

J6 — Power

If you connect J5 on the I/O board to J16 on the Little Board, you can use J6 to connect -5V and - 12V power supplies to the Little Board. Table 1– 2 shows J6 wiring.

J6 Pin	Signal
1	-12 Volts
3	-5 Volts
2, 4	Ground

Table 1– 2. J6 Power Wiring

J7 — Keyboard

If you connect J5 on the I/O board to J16 on the Little Board, you can use J7 to connect a PS/2 keyboard. J7 is a standard 5-pin DIN connector.

Switch Descriptions (S1 – S4)

There are four switches on the I/O Development Board. They are identified by silkscreen designations S1, S2, S3, and S4. Table 1– 3 describes each switch function.

Switch	Name	Description
S1*	Lid	Power management input: causes an SMI to simulate a laptop lid
		closure.
S2*	Pwr	Power management input (push-button switch): when pushed for 6
		seconds, it powers down the board. When pressed again, the
		board powers up.
S3*	Lo-Pwr	Power management input: causes an SMI to simulate a low-
		battery condition.
S4	Reset	Standard Reset signal to the Little Board

* For information about implementing S1, S2, and S3 functionality, contact Ampro Technical Support.

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