> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/hardware-products/hardware/engage-devices/ux1-3-4xx-series/ux4xx/ux412-installation-guide/pinouts.md).

# Pinouts

## Port Pinouts

This section contains port pinout tables for UX412 and UX402.

## Power Port

{% columns %}
{% column %}
**Connector**

![](/files/e3VYBnH3ttbgEB01wKwS)
{% endcolumn %}

{% column %}
**PIN**

1

2

3

4
{% endcolumn %}

{% column %}
**Function**

+DC 9-43 V

GND

DC\_WAKE

NC
{% endcolumn %}

{% column %}
**Description**

External power from cable

Power ground

Low active wake up signal

No connection
{% endcolumn %}
{% endcolumns %}

## Ethernet Port (LAN)

{% columns %}
{% column %}
**Connector**

![](/files/n9rdB93bQ9zOh9oWNaSY)
{% endcolumn %}

{% column %}
**PIN**

1

2

3

4

5

6

7

8
{% endcolumn %}

{% column %}
**Function**

TXD+

TXD-

RXD+

NC

NC

RXD-

NC

NC
{% endcolumn %}

{% column %}
**Description**

Transmit data +

Transmit data -

Receive data +

No connection

No connection

Receive data -

No connection

No connection
{% endcolumn %}
{% endcolumns %}

## USB Pinout (Host Port)

{% columns %}
{% column %}
**Connector**

![](/files/sOrrrgSpF6xuKlGv2u1m)
{% endcolumn %}

{% column %}
**PIN**

1

2

3

4
{% endcolumn %}

{% column %}
**Function**

+5 V

DATA-

DATA+

GND
{% endcolumn %}

{% column %}
**Description**

5 V USB Power (500mA)

USB Host Signal -

USB Host Signal +

USB ID pin/Ground
{% endcolumn %}
{% endcolumns %}

## UX402 (Data Port)

{% columns %}
{% column %}
**Connector**

![](/files/4FOAE6yPZGpFhbYQeSAb)
{% endcolumn %}

{% column %}
**PIN**

1

2

3

4

5

6

7

8

9

10
{% endcolumn %}

{% column %}
**Function**

Buzzer

+5 V DC, 0.1 A

+3.3V DC

GND

IRQ

SDA

SCL

SCLM

SDAM

GND
{% endcolumn %}

{% column %}
**Description**

Signal

Power

Standby Power

Power GND

Motion detector IRQ

I2c LED driver

I2c LED driver

I2c Motion detector

I2c Motion detector

Power GND
{% endcolumn %}
{% endcolumns %}


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