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ATXA guide

1. Introduction

ATXA is an ATX adapter borad to manage the power of your computer. The product includes two modules A-board and B-board. A-board is connected to the Raspberry Pi, B-board is connected to the computer's motherboard, and A-board is connected to B-board through a network cable.Join to the Discord Community Chat for news, questions and support!

ATXA_A ATXA_B
ATXA_A ATXA_B

2. A-board

A-board is connected to the Raspberry Pi. The following table is a typical connection method in PiKVM application.

A-board RPI4
GND GND
3V3 3V3
LED PWR GPIO24
LED HDD GPIO22
SW PWR GPIO23
SW RST GPIO27

2

A-board is connected to B-board through a network cable. The following table is the corresponding relationship between the pin status of A-board and B-board.

Pins on A-board Pins on B-board
LED PWR is HIGH LED PWR+ is HIGH, LED PWR- is LOW
LED PWR is LOW LED PWR+ is LOW, LED PWR- is LOW
LED HDD is HIGH LED HDD+ is HIGH, LED HDD- is LOW
LED HDD is LOW LED HDD+ is LOW, LED HDD- is LOW
SW PWR is HIGH BTN PWR+ and BTN PWR- connected, the power button is pressed
SW PWR is LOW BTN PWR+ and BTN PWR- disconnected, the power button is unpressed
SW RST is HIGH BTN RST+ and BTN RST- connected, the reset button is pressed
SW RST is LOW BTN RST+ and BTN RST- disconnected, the reset button is unpressed

3. B-board

The b-board has an adapted full-height and half-height metal PCI mounting plate, which can be installed on the computer case. The user connects the pins on the B-board to the ATX control interface on the computer motherboard using the color DuPont cables provided with the product.
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3.Mechanical Diagram

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4.Test video

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