> 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/ux402-installation-guide/port-pinouts.md).
# Port Pinouts
## Port Pinouts
This section contains port pinout tables for UX302 and UX402.
### USB A
{% columns %}
{% column %}
**Connector**
{% endcolumn %}
{% column %}
**PIN**
1
2
3
4
{% endcolumn %}
{% column %}
**Function**
+5 V
DATA-
DATA+
GND
{% endcolumn %}
{% column %}
**Description**
5 V USB Power (500 mA)
USB Host Signal -
USB Host Signal +
USB ID pin/Ground
{% endcolumn %}
{% endcolumns %}
### RJ45 CTLS (UX302 to UX402)
{% columns %}
{% column %}
**Connector**
{% endcolumn %}
{% column %}
**PIN**
1
2
3
4
5
6
7
8
9
10
{% endcolumn %}
{% column %}
**Function**
Buzzer
5V0
3V3
0V
Proximity
SDA
SCL
SCL
SDA
0V
{% endcolumn %}
{% column %}
**Description**
PWM
Power
Power
GND
User detect wake
CTLS
CTLS
Proximity
Proximity
GND
{% endcolumn %}
{% endcolumns %}
### SMA RF CTLS Antenna
{% columns %}
{% column width="25%" %}
**Connector**
{% endcolumn %}
{% column width="41.66666666666666%" %}
**PIN**
1
2
{% endcolumn %}
{% column %}
**Function**
Signal
0V
{% endcolumn %}
{% endcolumns %}
### USB C
{% columns %}
{% column %}
**Connector**
{% endcolumn %}
{% column %}
**PIN**
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
{% endcolumn %}
{% column %}
**Description**
GND
TX1+
TX1-
VBUS
CC1
D+
D-
SBU1
VBUS
RX2-
RX2+
GND
{% endcolumn %}
{% column %}
**PIN**
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
{% endcolumn %}
{% endcolumns %}
### Power Port
{% columns %}
{% column %}
**Connector**
{% endcolumn %}
{% column %}
**PIN**
1
2
3
4
{% endcolumn %}
{% column %}
**Function**
9 V to 43 V
GND
Wake\_MDB\_Module
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**
{% endcolumn %}
{% column %}
**PIN**
1
2
3
4, 5
6
7, 8
{% endcolumn %}
{% column %}
**Function**
TXD+
TXD-
RXD+
75 Ohms
RXD-
75 Ohms
{% endcolumn %}
{% column %}
**Description**
Transmit data +
Transmit data -
Receive data +
AC coupled to GND
Receive data -
AC coupled to GND
{% endcolumn %}
{% endcolumns %}
---
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