J3 — Misc.

This connector contains miscellaneous Power Management signals and the TTL serial.

Table 1-3. Miscellaneous Power Management and TTL Wiring

Pin #

Signal

Pin #

Signal

 

 

 

 

1

TTL_TX3

2

TTL_RX1

 

 

 

 

3

TTL_RX3

4

TTL_TX1

 

 

 

 

5

TTL_GND

6

SMBALRT

 

 

 

 

7

TTL_TX4

8

SMBDATA

 

 

 

 

9

TTL_RX4

10

SMBCLK

 

 

 

 

J4 — Keyboard

You can use J4 to connect a PS/2 keyboard. J4 is a standard 5-pin DIN connector.

J5 — Mouse

You can use J5 to connect a PS/2 mouse. J5 is a standard 6-pin mini-DIN connector.

Switch Descriptions (S1 – S5)

There are five switches on the I/O Development Board. They’re described in Table 1-4.

 

 

Table 1-4. I/O Development Board Switches

 

 

 

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 BAT

Power management input: causes an SMI to simulate a low-battery

 

 

condition.

S4

RESET

Standard Reset signal to the Little Board

 

 

 

S5

RI

Ring Indicator: causes an SMI to simulate a laptop modem ring.

 

 

 

1-8

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Ampro Corporation 5001451A manual Switch Descriptions S1 S5, J3 Misc, J4 Keyboard, J5 Mouse

5001451A specifications

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