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Revision as of 09:03, 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.

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

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

Location of BOOT0 jumper (bottom view)


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

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