Ampro Corporation P5X Switch Descriptions (S1 S4)

1–10
J6 — Power
If you connect J5 on the I/O board to J16 on the Little Board, you can use J6 to conne ct -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 conne ct 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.