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

Revision as of 08:05, 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

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	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 +105^oC (industrial version).

Electrical parameters

SBC signal name	Parameter	Value			Units
SBC signal name	Parameter	Min.	Typ.	Max.	Units
+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
V_BATT	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)
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

Note:

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

@@ Line 273: / Line 273: @@
 ! style="vertical-align:middle;" | Note
 |- style="text-align:center;"
-| colspan="5" style="vertical-align:middle;" | Group power
+| colspan="5" style="vertical-align:middle;" | Power group
 |-
 | style="vertical-align:middle;" | M
@@ Line 313: / Line 313: @@
 |-
 | style="vertical-align:middle;" | L+
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | External power supply for digital outputs
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | We recommended connecting to L+ in Power Group
 |-
 | style="vertical-align:middle;" | DQ1
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | High-side output
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | max. recommended output current 100 mA
 |-
 | style="vertical-align:middle;" | DQ2
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | High-side output
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | max. recommended output current 100 mA
 |-
 | style="vertical-align:middle;" | DQ3
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | High-side output
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | max. recommended output current 100 mA
 |-
 | style="vertical-align:middle;" | DQ4
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | High-side output
-| style="vertical-align:middle;" |
+| style="vertical-align:middle;" | max. recommended output current 100 mA
 |-
 | style="vertical-align:middle;" | M

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