---
title: "NORVI X-BXO – DATASHEET"
description: "The NORVI X-BXO is a GPIO expansion module for the NORVI X industrial controller, providing access to 14 general-purpose input/output lines. It extends the controller’s I/O capabilities and provides flexible digital interfacing for various industrial devices and peripherals. ## Product…"
url: "https://norvi.io/docs/norvi-x-bxo-datasheet/"
updated: "2026-10-20"
category: "NORVI X-BXO"
---

# NORVI X-BXO – DATASHEET

The NORVI X-BXO is a GPIO expansion module for the NORVI X industrial controller, providing access to 14 general-purpose input/output lines. It extends the controller’s I/O capabilities and provides flexible digital interfacing for various industrial devices and peripherals.

## Product Features

- 14 × Input/Output (I/O) Terminals
- Flexible Digital I/O Configuration
- Direct Access to Controller GPIOs
- UART, USB, I²C, and SPI Interface Access
- Digital Sensor and Device Interfacing
- Suitable for Custom I/O Applications
- Expanded I/O Capability for NORVI X Controllers
- Industrial Automation and Control Support

## Applications

- Industrial automation and control
- Digital sensor interfacing
- Switch and push-button monitoring
- Actuator and device control
- Relay and signal control
- Machine I/O expansion
- Custom digital I/O applications
- General-purpose GPIO interfacing

![](https://norvi.io/wp-content/uploads/2026/10/NORVI-X-BKO-FRONT-FACE.jpg)

## Product Block Diagram

![](https://norvi.io/wp-content/uploads/2026/10/NORVI-X-BKO-Summary-Image.jpg)

## Main

| Range of Product | NORVI X |
| --- | --- |
| Product type | Expansion Module for NORVI X Series |
| Certifications | EN 61131-2:2007 EN 61010-1:2010+A1:2019 EN IEC 61010-2-201:2018 2014/30/EU- Electromagnetic Compatibility (EMC) Annex III, Part B, Module C |
| Rated supply voltage | 24V DC |

## Complementary

| Product Part Numbers | NORVI X-BKO |
| --- | --- |

## Mechanical Properties

| Enclosure | NORVI X-N1 |
| --- | --- |
| Mounting / Installation Method | DIN RAIL |
| Terminal Type | Push-in terminal |
| Terminal Arrangement | Front |
| Length | 81.00 mm |
| Height | 104.00 mm |
| Width | 23.00 mm |

![](https://norvi.io/wp-content/uploads/2026/10/Measurements_NORVI-X-BKO.jpg)

## Environment

| IP degree of protection | IP20 |
| --- | --- |
| Operating altitude | 0 - 2000 meters |
| Operating Temperature | - –40 … +85° C (-40...185 °F) |
| Storage altitude | 0 - 3000 meters |
| Shock resistance | 15 gn for 11ms |
| Resistance to electrostatic discharge | 4kV on contact 8kV on air |
| Resistance to electromagnetic fields | 10 V/m (80 MHz ...... 1GHz) 3 V/m (1.4 MHz ...... 2 GHz) 1 V/m (2 MHz ...... 3 GHz) |

## Electrical Characteristics

*Grid Powered Devices*

| Rated Supply Voltage (V) | 24V DC |
| --- | --- |
| Current Consumption (mA) | Application-dependent |

## I/O Specifications

The NORVI X-BKO provides access to 14 I/O terminals connected to ESP32-S3 GPIOs. These terminals can be routed through internal circuitry or sensors, depending on the application, to interface with external devices.

### Terminal Configuration

| No. | Terminal | Description |
| --- | --- | --- |
| 1 | CN1 | Connector Terminal 1 |
| 2 | CN2 | Connector Terminal 2 |
| 3 | CN3 | Connector Terminal 3 |
| 4 | CN4 | Connector Terminal 4 |
| 5 | CN5 | Connector Terminal 5 |
| 6 | CN6 | Connector Terminal 6 |
| 7 | CN7 | Connector Terminal 7 |
| 8 | CN8 | Connector Terminal 8 |
| 9 | CN9 | Connector Terminal 9 |
| 10 | CN10 | Connector Terminal 10 |
| 11 | CN11 | Connector Terminal 11 |
| 12 | CN12 | Connector Terminal 12 |
| 13 | CN13 | Connector Terminal 13 |
| 14 | CN14 | Connector Terminal 14 |
| 15 | GND | Ground |
| 16 | GND | Ground |
| 17 | GND | Ground |
| 18 | GND | Ground |

## Expansion Port

| PIN INDEX | Purpose | GPIO | SOURCE |
| --- | --- | --- | --- |
| 1 | MOSI | IO11 | ESP32-S3 |
| 2 | MISO | IO13 |  |
| 3 | SCLK | IO12 |  |
| 4 | GND | ---- |  |
| 5 | SCL | IO9 |  |
| 6 | SDA | IO8 |  |
| 7 | GND | ---- |  |
| 8 | RX1 | IO18 |  |
| 9 | TX1 | IO17 |  |
| 10 | GND | ---- |  |
| 11 | D+ | ---- |  |
| 12 | D- | ---- |  |
| 13 | GND | ---- |  |
| 14 | CS1 | P1_0 | PCA9539 I2C Address 0x75 |
| 15 | CS2 | P0_7 |  |
| 16 | CS3 | P0_6 |  |
| 17 | CS4 | P0_5 |  |
| 18 | IO1 | IO1 | ESP32-S3 |
| 19 | IO2 | IO2 |  |
| 20 | IO4 | IO4 |  |
| 21 | IO5 | IO5 |  |
| 22 | IO6 | IO6 |  |
| 23 | IO7 | IO7 |  |
| 24 | IO10 | IO10 |  |
| 25 | IO11 | IO35 |  |
| 26 | IO12 | IO41 |  |
| 27 | IO13 | IO37 |  |
| 28 | IO14 | IO14 |  |
| 29 | RS485_TX | IO15 |  |
| 30 | GND | ---- |  |
| 31 | GND | ---- |  |
| 32 | RS485_RX | IO16 |  |
| 33 | P1_1 | P1_1 | PCA9539 I2C Address 0x75 |
| 34 | P1_2 | P1_2 |  |
| 35 | IO21 | IO21 | ESP32-S3 |
| 36 | GND | ---- |  |
| 37 | GND | ---- |  |
| 38 | P1_3 | P1_3 | PCA9539 I2C Address 0x75 |
| 39 | P1_4 | P1_4 |  |
| 40 | P1_5 | P1_5 |  |
| 41 | IO39 | IO39 | ESP32-S3 |
| 42 | IO40 | IO40 |  |
| 43 | NC | ---- |  |
| 44 | NC | ---- |  |
| 45 | NC | ---- |  |
| 46 | GND | ---- |  |
| 47 | 5V | 5V |  |
| 48 | GND | GND |  |
| 49 | 24V | 24V |  |
| 50 | 24V | 24V |  |