SE5908 SDK Series

8-Port Industrial Serial to Ethernet Embedded Computer

  • Ideal for IoT and IIoT applications
  • Wide -20°C~70°C temperature range for Industrial EMC Protection
  • 2 x 10/100Mbps Ethernet port
  • 3 kV optional isolation on the serial ports (supports RS-485/422 only)
  • SD Card slot
  • Customizable LCM matrix and keypad
  • Atop customized Linux SDK environment with reliable APIs
  • 100~240VAC or 24~48VDC power input; one Relay Output alarm
  • Rugged metal housing in 1U Rack-mount (rack-mount kit included)
SE5908 SDK Series
SE5908 SDK Series
SE5908 SDK Series
SE5908 SDK Series
SE5908 SDK Series
SE5908 SDK Series

Providing connectivity for the Internet of Things
ATOP's Industrial Embedded Computer is your ideal flexible Gateway to the Internet of Things. It provides Serial, Ethernet connectivity and interfaces that can unlock your potential. Based on your specific application, it allowing almost any serial device to be connected, providing and retrieving the data you need to and from the cloud, no matter what provider you’re using.


Write your customized application in C language and Run it on its powerful Industrial low-power 800MHz ARM Cortex A8 TI Sitara AM3354 CPU. Make flexible use of your peripherals, no matter storage, Serial, or USB are needed.
SE5908 is available as a SDK/BSP. The SDK development environment reserves the maximum flexibility. Bottom to top editable software architecture allowed easily to customize or add the IoT applications for different using scenarios. Included Linux kernel source extend the capability of the kernel layer. Changeable WEB pages allowed to easily customize proprietary style. With the SE5908/16, it will extend your possibility while building your IoT applications.


Rugged and flexible for advanced developments
SE5908 embeds high EMC protection, wide temperature operation, programming and installation flexibility in one device. The device is available in two power input options (100~240VAC or 24~48VDC) and provides one additional relay output.


SE5908 (SDK) block diagram


The IoT (Internet of Things) or IIoT (Industrial Internet of Things) is a trending topic these days. It’s all about bringing devices, sensors, actuators, data and commands to the cloud, with the ultimate goal to improve the quality of life, the services Smart Cities can offer, saving energy or saving money. This requires two things: to vehiculate the collected data to the cloud in a format that can be recognized and processed and to process, compute and analyze all this amount of data in real time.
It is not a concept far from reality. Imagine you’d like to bridge a Modbus Sensor to the cloud. And you’d like to have the application running on the cloud to be able to process multiple sensors’ data, and to trigger some event in some specific stations along the network. You may also have the need to override the cloud control and manage the application locally. Any application has its story.


Here at ATOP, we understand these different needs and we are providing you different working models, based on what your needs are.


Use the Standard SDK, programmable embedded computer if:

  • You are familiar with Linux OS
  • You have ANSI C programming skills
  • Your application is strictly time/ performance sensitive
  • Your application has very critical exception handling requirements

Our SDK products provide:

  • Ported, proven and tested peripherals (such as I/Os, Ethernet, Serial, Relays) and integrated drivers
  • ATOP customized Linux Kernel and network protocols
  • Ported, debugged and proven third party applications
  • Utilities and APIs to control the hardware in an easy and effective way
  • Opened software architecture to create your own system image
  • Linux source code to extend the kernel capability
  • Modifiable WEB contents to customize proprietary WEB style
  • Example of source code





Hardware Specifications 
CPUTexas Instruments Sitara ARM Cortex A8 AM3352 1000MHz
Flash32 MB NOR Flash (customizable upon request up to 128 MB)
RAM256 MB DDR3 (customizable upon request up to 1 GB)
Real Time Clock (RTC)Yes - with external chip
Console portYes - on-board connector
Reset ButtonYes
Network Interface 
StandardsIEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X)
Ethernet Ports2x 10/100 BASE-T(X) RJ45
Serial Interface 
ConnectorRJ45 Connector
PortsSE5908: 8 ports (RS-232/RS-422/RS-485, RS-422/RS-485 on Isolation vers.)
SE5916: 16 ports (RS-232/RS-422/RS-485, RS-422/RS-485 on Isolation vers.)
Serial Console1x Serial Console port (RJ45)
Serial Port Isolation2.5 kV (SiS version only) - Isolation version supports only RS-422/RS-485
Pull-high / Pull-low /Term. resistorsSoftware Selectable
Baud Rate50 ~ 921,600bps
Data Bits5, 6, 7, 8
Stop Bits1, 2
Flow ControlNone, Xon/Xoff, RTS/CTS (RS-232 only)
Other interfaces 
USB ports1 x USB A Type (USB 2.0) - internal 1-port High-Speed OTG + power
LCM MatrixProgrammable LCM Matrix with 5-buttons
SD CardSD card slot (internal)
Relay Output1x 1A@30VDC (Normal open)
BootloaderU-boot 2014.07
Linux kernelLinux 3.14.26
Linux toolchainLinux 32 bits toolchain gcc (C/C++ PC cross compiler), glibc
Linux sample codeRS232, RS485, RTC, watchdog, LED, Buzzer, Button, network socket
Rated Supply VoltageDC version: 24-48VDC; US-EU version: 100-240 VAC (EU or US Plug)
Input Voltage RangeDC version: 24-48VDC; US-EU version: 90-264 VAC (EU or US Plug)
Input CurrentDC version: 0.54 A @24VDC; US-EU version: 0.21A@100VAC
Power ConsumptionApproximately 21 W (Max)
ConnectorDC version: 5.08mm 3-pin Lockable Terminal Block
EU-US version: IEC 60320-1 C14 AC Power Inlet
Power RedundancyNo
Reverse Polarity ProtectionYes (DC version only)
Operating Temperature-20°C~70°C (-4°F~158°F)
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95% (Non-condensin
HousingIP30 protection, SPCC metal housing
Dimensions(W x H x D)436 mm x 43.5 mm x 200 mm
Installation19’’ Rack-Mount (Kit included)
Weight3,000g (8-port version); 3,200 g (16-port version)
Reset ButtonYes
SafetyEN60950-1:2006; EN62368-1
EMCFCC Part 15, Subpart B, Class A

EN 55032, Class B, EN 61000-3-2, EN 61000-3-3, EN 55024
EN 55032, Class B, EN 61000-3-2, EN 61000-3-3, EN 55024
IEC 61000-4-2ESDContact Discharge±8kV (For AC Version)4
IEC 61000-4-2ESDAir Discharge±15kV (For AC Version)4
IEC 61000-4-2ESDContact Discharge±6kV (For DC Version)3
IEC 61000-4-2ESDAir Discharge±8kV (For DC Version)3
IEC 61000-4-3RSRadiated (enclosure)10 V/m3
IEC 61000-4-4EFTAC Power Port±4.0kV4
IEC 61000-4-4EFTDC Power Port±4.0kV4
IEC 61000-4-4EFTSignal Port±2.0KV3
IEC 61000-4-5SurgeAC Power Port (L-2-L)±2.0KV4
IEC 61000-4-5SurgeAC Power Port (L-2-E)±4.0KV4
IEC 61000-4-5SurgeDC Power Port (L-2-L)±1.0KV3
IEC 61000-4-5SurgeDC Power Port (L-2-E)±2.0KV3
IEC 61000-4-5SurgeSignal Port (L-2-L)±2.0KV4
IEC 61000-4-6CSAC Power Port10 V rms3
IEC 61000-4-6CSDC Power Port10 V rms3
IEC 61000-4-6CSSignal Port10 V rms3
IEC 61000-4-8PFMFEnclosure1 A/m3
IEC 61000-4-11DIPAC Power Port30% Reduction (Voltage Dips),
25/30 Cycle
>95% Reduction (Voltage Dips),
0.5 period

100% Reduction (Voltage Inter-
ruption): 250/300 Cycle
ShockMIL-STD-810G Method 516.7
DropMIL-STD-810G Method 516.7
VibrationMIL-STD-810G Method 514.7
Warranty5 Years
MTBFSE5908-DC: 22.74 years; MB5916-US/EU: 13.95 years;
SE5908-SiS-DC: 19.00 years; MB5908-SiS-US/EU: 19.03 years
SE5916-SiS-DC: 13.38 years; MB5916-SiS-US/EU: 13.38 years
MB5908-DC: 22.74 years; MB5916-US/EU: 13.95 years;
MB5908-SiS-DC: 19.00 years; MB5908-SiS-US/EU: 19.03 years
MB5916-SiS-DC: 13.38 years; MB5916-SiS-US/EU: 13.38 years


SE5908-DCContact Headquarter8XRS232/422/485, DC
SE5908-SiS-DCContact Headquarter8XRS422/485, Isolation, DC
SE5908-EUContact Headquarter8XRS232/422/485, AC, EU
SE5908-USContact Headquarter8XRS232/422/485, AC, US
SE5908-SiS-EUContact Headquarter8XRS422/485,Isolation, AC, EU
SE5908-SiS-USContact Headquarter8X RS422/485,Isolation, AC, US
Please note the following
suffixes to be added to he
chosen model name:
SDK version: (SDK)
SDR-75-2450500752240001G75W/3.2A DIN-Rail 24VDC power supply with 88~264VAC / 124~370VDC input
AD17-24C (US-Y)50500151240002GY-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, US plug
AD17-24D (EU-Y)50500151240012GY-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, EU plug
GDC-12059906861G120mm copper woven grounding cable
CBL-RJ45(8P)-DB9(M)-9050891781GRJ45 to DB9 Male Cable, 90cm
CBL-RJ45(8P)-DB9(M)-20050891951GRJ45 to DB9 Male Cable, 200cm
CBL-RJ45(8P)-DB9(F)-9050891791GRJ45 to DB9 Female Cable, 90cm
CBL-RJ45(8P)-DB9(F)-90-C50891971GRJ45 to DB9 Female Cross Over Cable, 90cm
CBL-RJ45(8)-DB9(F)-200-C50891961GRJ45 to DB9 Female Cross Over Cable, 200cm
RMK-718-Black70100000000040GRack Mount Mounting-Kit, Black
Power Cable (US)50801041G6 feet Power Cable, US
Power Cable (EU)50801051G6 feet Power Cable, EU


Version Name Time Size Download
v1.0 Linux Driver_x64 2021-03-29 210.16 KB


Version Name Time Size Download
v2.01 SE5908 Firmware 2021-03-29 10.28 MB


Version Name Time Size Download
v1.1 Datasheet EN 2024-03-21 404.16 KB
v1.0 Datasheet EN 2023-11-01 353.85 KB
v0.9 Datasheet EN 2022-11-04 395.6 KB
v0.8 Datasheet EN 2021-03-03 474.27 KB
v0.5 Datasheet EN 2020-07-31 722.27 KB
v0.4 Datasheet EN 2018-08-24 680.75 KB
v0.3 Datasheet EN 2018-05-29 668.91 KB
v0.2 Datasheet EN 2017-11-10 576.53 KB


Version Name Time Size Download
v1.2 SE59XX SDK User Manual 2018-05-02 2.25 MB
v.1.1 SE59XX SDK User Manual 2018-02-05 2.41 MB
v1.4 SE59XX Node-RED User Manual 2019-04-22 5.72 MB
v0.1 AWS Getting started guide 2021-08-12 907.53 KB
v0.5 SE59XX SDK User Manual 2021-04-13 2.55 MB
v1.2 SE59XX Node-RED User Manual 2018-08-24 5.59 MB

Hardware Installation Guide

Version Name Time Size Download
v2.0 SE5908/MB5908/PG5908 Hardware Installation Guide 2019-06-06 1.87 MB

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