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SL-IoT-BOX-6ULL Datasheet and Pinout

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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 connectors

Connector name Default function Note
Power Group
M Power reference ground -
L+ External power supply Recommended voltage 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" (DQ)1
L+ External power supply for digital outputs We recommended connecting to L+ in Power Group
DI1 High-side output max. recommended output current 100 mA
DI2 High-side output max. recommended output current 100 mA
DI3 High-side output max. recommended output current 100 mA
DI4 High-side output max. recommended output current 100 mA
M Power reference ground Connected with M line in Power Group|}

Note:
1. Each DQ is equipped with high-side electronic switch

Back connectors


Connector pin number Default function GPIO Ball number BGA289 Notes
J100
1 +3,3VO +3,3V power output (max. 100 mA) - paralelly connected to pin 1 of J101
2 +5V External power supply (power source) 5V - paralelly connected to pin 2 of J101
3 UART8-RXD ENET2_TX_EN B15
4 GND
5 UART8-TXD ENET2_TX_DATA1 A16
6 UART3-TXD UART3_TX_DATA H17
7 PWM5 LED_DATA18 A13
8 UART3-RXD UART3_RX_DATA H16
9 GND
10 UART3-CTS UART3_CTS H15
11 UART4-RXD LCD_ENABLE B8
12 UART3-RTS UART3_RTS G14
13 UART4-TXD LCD_CLK A8
14 GND
15 I2C4-SDA LCD_DATA02 E10 In I2C mode external pull-up resistor is necessary (no any internal pull-up)
16 I2C3-SDA LCD_DATA00 B9 In I2C mode external pull-up resistor is necessary (no any internal pull-up)
17 I2C4-SCL LCD_DATA03 D10 In I2C mode external pull-up resistor is necessary (no any internal pull-up)
18 I2C3-SCL LCD_DATA01 A9 In I2C mode external pull-up resistor is necessary (no any internal pull-up)
19 ECSPI2-MOSI UART5_TX_DATA F17
20 UART7-RXD LCD_DATA16 C13
21 ECSPI2-MISO UART5_RX_DATA G13
22 UART7-TXD LCD_DATA17 B13
23 ECSPI2-SCLK UART4_TX_DATA G17
24 UART7-CTS LCD_DATA07 D11
25 ECSPI2-CS UART4_RX_DATA G16
26 UART7-RTS LCD_DATA06 A10
J101
1 +3,3VO +3,3V power output (max. 100 mA) - paralelly connected to pin 1 of J100
2 +5V External power supply (power source) 5V - paralelly connected to pin 2 of J100
3 USB1-DP Line connected to USB1 channel through MUX (output ENET2_RX_ER, ball D16 is USB1 connection selector).
Connected to USB1-DP MPU line if ENET2_RX_ER="0" (USB1-SEL), in another case USB1-DP MPU line is connected to MicroUSB connector (USB-OTG).
4 GND
5 USB1-DM Line connected to USB1 channel through MUX (output ENET2_RX_ER, ball D16 is USB1 connection selector).
Connected to USB1-DM MPU line if ENET2_RX_ER="0" (USB1-SEL), in another case USB1-DM MPU line is connected to MicroUSB connector (USB-OTG).
6 GPIO-6 GPIO1_IO06 K17
7 GPIO3.17 LCD_DATA12 C12
8 GPIO-7 GPIO1_IO07 L16
9 GND
10 GPIO-8 GPIO1_IO08 N17
11 CAN1-TX LCD_DATA08 B11
12 GPIO-9 GPIO1_IO09 M15
13 CAN1-RX LCD_DATA09 A11
14 GND
15 CAN2-TX LCD_DATA10 E12
16 GPIO3.2 LCD_HSYNC D9
17 CAN2-RX LCD_DATA11 D12
18 GPIO3.3 LCD_VSYNC C9
19 MQS-R LCD_DATA22 A14
20 UART2-RXD UART2_RX_DATA J16
21 MQS-L LCD_DATA23 B16
22 UART2-TXD UART2_TX_DATA J17
23 GPIO3.25 LCD_DATA20 C14
24 UART2-CTS UART2_CTS J15
25 GPIO3.26 LCD_DATA21 B14
26 UART2-RTS UART2_RTS H14
J102
1 UART1-TXD UART1_TX_DATA K14 TxD line of Linux console port (LV-TTL logic levels)
2 UART1-RXD UART1_RX_DATA K16 RxD line of Linux console port (LV-TTL logic levels)
3 GND
Another functions
BUZZER GPIO1_IO05 M17 Electromagnetic speaker control output (thru NPN driver)
SYSLED ENET2_TX_CLK D17 System or user LED control output (heartbeat by default, thru NPN driver)
USRLED LCD_DATA14 A12 User LED control output (thru NPN driver)
WDOG-B LCD_RESET E9 Used by system, do not modify default configuration
ENET-MDIO ENET2_RX_DATA0 C17
ENET-MDC ENET2_RX_DATA1 C16
ENET1-RST ENET2_RX_EN B17
ENET1-INT ENET2_TX_DATA0 A15
USB1-SEL ENET2_RX_ER D16
USB1-ID GPIO1_IO00 K13
USB1-VBUS-OC GPIO1_IO01 L15
USB1-VBUS-EN GPIO1_IO04 M16
USB2-VBUS-OC GPIO1_IO03 L17
USB2-VBUS-EN GPIO1_IO02 L14
WiFi and BLE module connection
BT-ENABLE CSI_MCLK F5
WLAN-HWAKE CSI_PIXCLK E5
BT-HWAKE CSI_VSYNC F2
BT-WAKE CSI_HSYNC F3
BT-RXD CSI_DATA00 E4 UART5
BT-TXD CSI_DATA01 E3 UART5
BT-RTS CSI_DATA02 E2 UART5
BT-RTS CSI_DATA03 E1 UART5
BT-PCM-SYNC CSI_DATA04 D4
BT-PCM-CLK CSI_DATA05 D3
BT-PCM-OUT CSI_DATA06 D2
BT-PCM-IN CSI_DATA07 D1
CLK32kHz JTAG_CTK M14 Clock output to 1DX radio module (WiFi/BLE)
JTAG_MOD JTAG_MOD P15 Permanently connected to GND
BOOT_MODE1 BOOT_MODE1 U10 Permanently connected to GND

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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