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SL-IoT-BOX-6ULL Datasheet and Pinout: Difference between revisions

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1. The external voltage connected to pin 2 of J100 and/or J101 or MicroUSB.<br />
1. The external voltage connected to pin 2 of J100 and/or J101 or MicroUSB.<br />


== Front LEDs and connectors ==
== MPU subsystem ==
[[File:SL-IOT-BOX-6ULL-front-panel.jpg|center]]
The SL-IoT-BOX computer’s microprocessor system is based on a VisionSOM-6ULL family module, which is equipped with an industrial NXP i.MX6ULL microprocessor. Two variants of Linux operating systems are available for the computer, based on Debian and Yocto.
{| class="wikitable"
|- style="font-weight:bold; text-align:center;"
! style="vertical-align:middle;" | Connector name
! style="vertical-align:middle;" | Default function
! style="vertical-align:middle;" | Note
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Power Group
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | L+
| style="vertical-align:middle;" | External power supply
| style="vertical-align:middle;" | Recommended voltage is 24 VDC
 
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Group "Output Relays" (REL1, REL2)
|-
| style="vertical-align:middle;" | REL1 NC
| style="vertical-align:middle;" | REL1 normal connect contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|-
| style="vertical-align:middle;" | REL1 C
| style="vertical-align:middle;" | REL1 normal common contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|-
| style="vertical-align:middle;" | REL1 NO
| style="vertical-align:middle;" | REL1 normal open contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|-
| style="vertical-align:middle;" | REL2 NC
| style="vertical-align:middle;" | REL2 normal connect contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|-
| style="vertical-align:middle;" | REL2 C
| style="vertical-align:middle;" | REL2 normal common contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|-
| style="vertical-align:middle;" | REL2 NO
| style="vertical-align:middle;" | REL2 normal open contact
| style="vertical-align:middle;" | max. resistance load 6A/250VAC or 6A/30 VDC (relay family HF41F)
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Group "Digital Outputs" (DQ)<sup>1</sup>
|-
| style="vertical-align:middle;" | L+
| style="vertical-align:middle;" | External power supply for digital outputs
| style="vertical-align:middle;" | We recommended connecting to L+ in Power Group
|-
| style="vertical-align:middle;" | DQ1
| style="vertical-align:middle;" | High-side output
| style="vertical-align:middle;" | max. recommended output current 100 mA
|-
| style="vertical-align:middle;" | DQ2
| style="vertical-align:middle;" | High-side output
| style="vertical-align:middle;" | max. recommended output current 100 mA
|-
| style="vertical-align:middle;" | DQ3
| style="vertical-align:middle;" | High-side output
| style="vertical-align:middle;" | max. recommended output current 100 mA
|-
| style="vertical-align:middle;" | DQ4
| style="vertical-align:middle;" | High-side output
| style="vertical-align:middle;" | max. recommended output current 100 mA
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Group "Digital Inputs" (DI)
|-
| style="vertical-align:middle;" | L+
| style="vertical-align:middle;" | External power supply for digital inputs
| style="vertical-align:middle;" | We recommended connecting to L+ in Power Group
|-
| style="vertical-align:middle;" | DI1
| style="vertical-align:middle;" | Digital inputs
| style="vertical-align:middle;" | Compatible with IEC 61131-2 type 1
|-
| style="vertical-align:middle;" | DI2
| style="vertical-align:middle;" | Digital inputs
| style="vertical-align:middle;" | Compatible with IEC 61131-2 type 1
|-
| style="vertical-align:middle;" | DI3
| style="vertical-align:middle;" | Digital inputs
| style="vertical-align:middle;" | Compatible with IEC 61131-2 type 1
|-
| style="vertical-align:middle;" | DI4
| style="vertical-align:middle;" | Digital inputs
| style="vertical-align:middle;" | Compatible with IEC 61131-2 type 1
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Group "RS485/CAN Serial Interfaces"
|-
| style="vertical-align:middle;" | A1 RS485<sup>3</sup>
| style="vertical-align:middle;" | A signal of half-duplex RS485 interface
| style="vertical-align:middle;" | Fail safe input
|-
| style="vertical-align:middle;" | B1 RS485<sup>3</sup>
| style="vertical-align:middle;" | B signal of half-duplex RS485 interface
| style="vertical-align:middle;" | Fail safe input
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|-
| style="vertical-align:middle;" | L CAN<sup>3</sup>
| style="vertical-align:middle;" | L signal of CAN-FD interface
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | H CAN<sup>3</sup>
| style="vertical-align:middle;" | H signal of CAN-FD interface
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|- style="text-align:center;"
| colspan="5" style="vertical-align:middle;" | Group "Dual RS232 Serial Interfaces"
|-
| style="vertical-align:middle;" | T1 RS232
| style="vertical-align:middle;" | Tx line of RS232-1<sup>4</sup>
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | R1 RS232
| style="vertical-align:middle;" | Rx line of RS232-1<sup>4</sup>
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|-
| style="vertical-align:middle;" | T2 RS232
| style="vertical-align:middle;" | Tx line of RS232-2<sup>5</sup>
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | R2 RS232
| style="vertical-align:middle;" | Rx line of RS232-2<sup>5</sup>
| style="vertical-align:middle;" | -
|-
| style="vertical-align:middle;" | M
| style="vertical-align:middle;" | Power reference ground
| style="vertical-align:middle;" | Connected with M line in Power Group
|}
 
Note:<br>
1. Each DQ is equipped with high-side electronic switch <br>
2. RS485 is implemented on hardware UART5 of i.MX6ULL <br>
3. CAN interface is implemented on hardware CAN1 of i.MX6ULL<br>
4. RS232-1 is implemented on hardware UART4 of i.MX6ULL<br>
5. RS232-2 is implemented on hardware UART8 of i.MX6ULL<br><br>
 
{| class="wikitable"
|- style="font-weight:bold; text-align:center;"
! style="vertical-align:middle;" | LED name
! style="vertical-align:middle;" | Default function
! style="vertical-align:middle;" | Note
|-
| style="vertical-align:middle;" | SYS
| style="vertical-align:middle;" | The system heartbeat of user LED
| style="vertical-align:middle;" | Connected to GPIO1_IO08 of i.MX6ULL
|-
| style="vertical-align:middle;" | PWR
| style="vertical-align:middle;" | Power supply monitoring
| style="vertical-align:middle;" | Connected premanently to internal power supply
|-
| style="vertical-align:middle;" | A
| style="vertical-align:middle;" | User LED A
| style="vertical-align:middle;" | Connected to GPIO1_IO02 of i.MX6ULL
|-
| style="vertical-align:middle;" | B
| style="vertical-align:middle;" | User LED B
| style="vertical-align:middle;" | Connected to GPIO1_IO09 of i.MX6ULL
|-
| style="vertical-align:middle;" | C
| style="vertical-align:middle;" | User LED C
| style="vertical-align:middle;" | Connected to GPIO1_IO00 of i.MX6ULL
|-
| style="vertical-align:middle;" | D
| style="vertical-align:middle;" | User LED D
| style="vertical-align:middle;" | Connected to GPIO1_IO01 of i.MX6ULL
 
|}


== Back connectors ==
== Back connectors ==

Revision as of 10:46, 22 September 2025

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_CpuType_RamSize_FlashSize_SF_TEMP
SLProduct type
SL-IOT-BOX - Industrial Single Board Computer
CpuTypeCPU Type
6ULL - i.MX6 ULL Y2
RamSizeDDR3 RAM Size
512R - 512MB
FlashSizeFlash Size Type and Density
08GE - 8GB eMMC
SFSpecial Features
0SF - No Special Features
1WB - Built-in Murata 802.11b/g/n Wi-Fi/Bluetooth v5.1
TEMPOperating Temperature
E - Extended: -25 to +70 C
I - Industrial: -40 to +85 C

Operating ranges

Parameter Value Unit Comment
Power Supply
24
V
 -
Power Supply (USB)1
5
V
 Connected to USB console connectors
DI input H voltage (above)
5
V
 In accordance with the standard IEC61131-2
DI input L voltage (below)
15
V
 In accordance with the standard IEC61131-2
DO output current limit
2
A
 Recommended max. output current up to 150 mA
Environment temperature2
-40…+85
 oC Industrial range w/o WiFi module
-25…+70
 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.

MPU subsystem

The SL-IoT-BOX computer’s microprocessor system is based on a VisionSOM-6ULL family module, which is equipped with an industrial NXP i.MX6ULL microprocessor. Two variants of Linux operating systems are available for the computer, based on Debian and Yocto.

Back connectors


Graphic Symbol Default function Note
Ethernet 10/100Mb/s connector Ethernet 1 interface connected to ETH1 of MPU
MicroSD card slot Connected to USB with protocol converter
USB 2.0 host connectors x4 Ports supported by MTT hub USB connected to USB2 of MPU
MicroUSB console connector Console is connected to UART1 of MPU
MicroUSB OTG connector Used as user USB-OTG or service USB port for eMMC image downloading.
Connected to USB1 of MPU.
WiFi and BLE 2.4GHz antenna RP-SMA type connector
RES System reset switch -
REC Recovery mode enable -

RTC battery connection

GPIOs assignments

Description MPU peripheral block Note
RTC
Communication interface I2C1 on default UART4 SDA, SCL
RTC interrupt GPIO1_IO25 -
Console UART
Communication interface UART1 TxD, RxD
RS232
Channel RS232-1 UART4 TxD, RxD
Channel RS232-2 UART8 TxD, RxD
RS485
RS485 interface UART5 TxD, RxD - communication
UART5_CTS - RS485 direction of data transfer
CAN
CAN communication interface CAN1 TX -LCD_DATA08, RX - LCD_DATA09
CAN control interface GPIO3_IO10 LCD_DATA5
User LEDs
User LED A GPIO1_IO02 -
User LED B GPIO1_IO09 -
User LED C GPIO1_IO00 -
User LED D GPIO1_IO01 -
SYS GPIO1_IO08 By default system heartbeat LED
Relays
REL1 GPIO1_IO15 JTAG-NRST
REL2 GPIO1_IO11 JTAG-TMS
Digital inputs
DI1 GPIO3_IO5 LCD_DATA0
DI2 GPIO3_I11 LCD_DATA6
DI3 GPIO3_IO4 LCD_RESET
DI4 GPIO3_IO6 LCD_DATA1
Digital outputs
DQ1 GPIO1_IO14 JTAG-TCK
DQ2 GPIO1_IO27 UART3-CTS
DQ3 GPIO1_IO22 UART2-CTS
DQ4 GPIO1_IO12 JTAG-TDO
USB-OTG
ID (USB1) GPIO1_IO24 UART3_TX
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