SL-IoT-BOX-6ULL Datasheet and Pinout
From SomLabs Wiki
SL-IoT-BOX-6ULL Datasheet and Pinout
General description
The SL-IoT-BOX-6ULL is a industrial fanless computer. It is compact, energy-efficient computer dedicated for edge and PLC applications.
Powered by the NXP i.MX6ULL processor, it offers versatile connectivity with RS232, RS485, CAN-FD, USB, Ethernet, and optional WiFi/BLE with external antenna. It provides digital and relay I/O, expandable storage via eMMC or MicroSD, as well as development-friendly features like LED indicators, a console port, and RTC with battery backup.
Designed for reliability and flexibility, the SL-IoT-BOX-6ULL industrial fanless computer is an ideal platform for modern IoT and industrial solutions. By integrating OpenPLC software, industrial applications become more scalable, future-ready, and performance-driven.
At the core of the system, the powerful VisionSOM-6ULL module drives the performance of the computer.
The SL-IoT-BOX industrial fanless edge computer comes in a durable aluminum enclosure, rated IP40 for reliable protection.
Applications
- IoT Sensor Hubs
- Home Appliances
- IoT gateways
- Protocol converters
- Home Automation – Smart Home
- 2D barcode scanners and printers
- Smart grid infrastructure
- Outdoor equipment
Features
- Powered by industrial NXP i.MX 6ULL application processor
- Fanless design
- Core clock up to 900MHz
- Up to 1GB RAM DDR3L
- Up to 32GB eMMC
- Integrated Ethernet 10/100 Mb/s
- Integrated industrial 1xRS485, 1xCAN-FD, 2xRS232 and 4xUSB2.0
- Dual relay NC-C-NO outputs
- Digital inputs 4xIEC 61131-2
- Digital high-side outputs
- Integrated RTC with battery
- Integrated MicroSD card reader
- Optional Murata 802.11b/g/n Wi-Fi and Bluetooth v5.1 module
- Power-efficient and cost-optimized solution
- Integrated security features
- Alu case with IP40 protection
Pictures of SL-IoT-BOX-6ULL versions
| Version | Photo |
|---|---|
| With case |
|
| Exploded view |
 |
Ordering info
| SL | Product type SL-IOT-BOX - Industrial Single Board Computer |
| CpuType | CPU Type 6ULL - i.MX6 ULL Y2 |
| RamSize | DDR3 RAM Size 512R - 512MB |
| FlashSize | Flash Size Type and Density 08GE - 8GB eMMC |
| SF | Special Features 0SF - No Special Features 1WB - Built-in Murata 802.11b/g/n Wi-Fi/Bluetooth v5.1 |
| TEMP | Operating Temperature E - Extended: -25 to +70 C I - Industrial: -40 to +85 C |
Operating ranges
| Parameter | Value | Unit | Comment |
|---|---|---|---|
| Power Supply | - | ||
| Power Supply (USB)1 | Connected to USB console connectors | ||
| DI input H voltage (above) | In accordance with the standard IEC61131-2 | ||
| DI input L voltage (below) | In accordance with the standard IEC61131-2 | ||
| DO output current limit | Recommended max. output current up to 150 mA | ||
| Environment temperature2 | oC | Industrial range w/o WiFi module | |
| Industrial (extended) range with WiFi module |
Note:
1. Recommended only for services purposes
2. Maximum MPU junction temperature is +105oC (industrial version).
Electrical parameters
| SBC signal name |
Parameter | Value | Units | ||
|---|---|---|---|---|---|
| Min. | Typ. | Max. | |||
| +5V | SBC supply voltage1 | 4.85 | 5 | 5.15 | V |
| +3.3VO | Supply voltage for external peripherals | 3.2 | 3.3 | 3.35 | V |
| VGPIO | GPIO Input Voltage | 0 | 3.3 | 3.62 | V |
| I+5V | Total Supply Current | TBD | TBD | TBD | mA |
| I+3.3VO | Output current of 3.3V power supply for peripherals |
- | - | 0.1 | A |
| VBATT | RTC/SNVS Backup Battery Supply |
2.66 | - | 3.6 | V |
Notes:
1. The external voltage connected to pin 2 of J100 and/or J101 or MicroUSB.
Front LEDs and connectors
| Connector name | Default function | Note | ||
|---|---|---|---|---|
| Power Group | ||||
| M | Power reference ground | - | ||
| L+ | External power supply | Recommended voltage is 24 VDC | ||
| Group "Output Relays" (REL1, REL2) | ||||
| REL1 NC | REL1 normal connect contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| REL1 C | REL1 normal common contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| REL1 NO | REL1 normal open contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| REL2 NC | REL2 normal connect contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| REL2 C | REL2 normal common contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| REL2 NO | REL2 normal open contact | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F) | ||
| Group "Digital Outputs" (DQ)1 | ||||
| L+ | External power supply for digital outputs | We recommended connecting to L+ in Power Group | ||
| DQ1 | High-side output | max. recommended output current 100 mA | ||
| DQ2 | High-side output | max. recommended output current 100 mA | ||
| DQ3 | High-side output | max. recommended output current 100 mA | ||
| DQ4 | High-side output | max. recommended output current 100 mA | ||
| M | Power reference ground | Connected with M line in Power Group | ||
| Group "Digital Inputs" (DI) | ||||
| L+ | External power supply for digital inputs | We recommended connecting to L+ in Power Group | ||
| DI1 | Digital inputs | Compatible with IEC 61131-2 type 1 | ||
| DI2 | Digital inputs | Compatible with IEC 61131-2 type 1 | ||
| DI3 | Digital inputs | Compatible with IEC 61131-2 type 1 | ||
| DI4 | Digital inputs | Compatible with IEC 61131-2 type 1 | ||
| M | Power reference ground | Connected with M line in Power Group | ||
| Group "RS485/CAN Serial Interfaces" | ||||
| A1 RS4853 | A signal of half-duplex RS485 interface | Fail safe input | ||
| B1 RS4853 | B signal of half-duplex RS485 interface | Fail safe input | ||
| M | Power reference ground | Connected with M line in Power Group | ||
| L CAN3 | L signal of CAN-FD interface | - | ||
| H CAN3 | H signal of CAN-FD interface | - | ||
| M | Power reference ground | Connected with M line in Power Group | ||
| Group "Dual RS232 Serial Interfaces" | ||||
| T1 RS232 | Tx line of RS232-14 | - | ||
| R1 RS232 | Rx line of RS232-14 | - | ||
| M | Power reference ground | Connected with M line in Power Group | ||
| T2 RS232 | Tx line of RS232-25 | - | ||
| R2 RS232 | Rx line of RS232-25 | - | ||
| M | Power reference ground | Connected with M line in Power Group | ||
Note:
1. Each DQ is equipped with high-side electronic switch
2. RS485 is implemented on hardware UART5 of i.MX6ULL
3. CAN interface is implemented on hardware CAN1 of i.MX6ULL
4. RS232-1 is implemented on hardware UART4 of i.MX6ULL
5. RS232-2 is implemented on hardware UART8 of i.MX6ULL
| LED name | Default function | Note |
|---|---|---|
| SYS | The system heartbeat of user LED | Connected to GPIO1_IO08 of i.MX6ULL |
| PWR | Power supply monitoring | Connected premanently to internal power supply |
| A | User LED A | Connected to GPIO1_IO02 of i.MX6ULL |
| B | User LED B | Connected to GPIO1_IO09 of i.MX6ULL |
| C | User LED C | Connected to GPIO1_IO00 of i.MX6ULL |
| D | User LED D | Connected to GPIO1_IO01 of i.MX6ULL |
Back connectors
| Graphic Symbol | Default function | Note | ||
|---|---|---|---|---|
 |
+3,3VO | +3,3V power output (max. 100 mA) - paralelly connected to pin 1 of J101 |
Note:
1. WiFi radio module is connected to SDIO1 interface.
2. Power supply (5V) for SBC can be connected to pin 2 of J100 or 101 or MicroUSB connector.
Software loading - BOOT0 jumper
If BOOT0 jumper is open - MPU starts normally (software from MMC memory is loading).
If pins of BOOT0 jumper are connected to each other, bootloader starts (active on USB1).
RTC battery connection
Dimensions
