Compact 1-Port Semi-Industrial Serial Device Server, Field-Mount

  • 1 x software-selectable RS-232/485/422 port
  • 1 x 10/100Mbps RJ45 Fast Ethernet port
  • Supports TCP server/client, UDP, Virtual COM and Tunneling modes
  • Configuration via Web Server page, Telnet Console, and Windows Utility
  • Upgradable firmware via Ethernet from a remote-PC
  • Rugged metal casing; semi-industrial EMC protection
  • Optional DIN-Rail mounting

Despite Ethernet having become the new backbone standard of Industrial Automation, Serial devices still remain highly relevant today, with numerous devices installed on sites worldwide. So with ATOP’s SE5201C Series, you can transform any serial device into an Ethernet-capable one, allowing you to control and monitor your legacy serial devices via your LAN or WAN – or even over the internet.

With such connectivity, the amount of time required to configure or troubleshoot a serial device located on a factory floor or in a remote location is eliminated. And with such Ethernet-based connectivity, serial devices can be integrated into modern practices such as Industry 4.0 and IIoT, allowing you to extend their lifetime and avoid wholesale device upgrades in the near future.

Featuring 1 x software-selectable Serial Port and 1 x RJ45 Port, the SE5201C Series is a simple-to-install device, with easy configurations options such as  Telnet, Web browser, or other Windows utilities. And using the VirtualCOM software, Windows-based applications can access serial devices by mapping the virtual com ports to the SE5201C serial server series.

Encased in a rugged metal housing offering semi-industrial EMC protection,  the SE5201C Series is ideal for semi-industrial environments where reliability is a must, such as Warehouses, Barcode Scanners, Data Terminals, Electronic  Kanbans, Shop Floor Control Systems, and Pick-to-Light Systems.

Network Interface
SpeedIEEE 802.3 10BaseT
IEEE 802.3u 100BaseT(X)
Auto MDI/MDI-XPresent
Connector portsRJ45 x 1
Serial Interface
Connector9-Pin D-Sub9 connector(Male, -DB version) or 5-Pin Terminal block (-TB version)
ModeRS-232/RS-485(2 and 4 wire)/RS-422, software selectable
Baud Rate1200~230,400 bps
ParityNone, Odd, Even, Space, Mark
Data Bits7, 8
Stop Bits1, 2
Flow ControlNone, Xon/Xoff, RTS/CTS (RS-232 only)
Input VoltageDC Jack, 5 VDC
Power Consumption<2W
Power RedundancyNo
ConnectorDC Jack, 5 VDC
Reverse Polarity ProtectionYes
Physical CharacteristicsValue
Dimension (W x H x D)65mm x 78mm x 28mm (without wall-mount part)
SE5201C-TB: 88.5 x 78.3 x 27.8mm (with wall-mount part)
SE5201C-DB: 88.5 x 84 x 27.8mm (with wall-mount part and DB9 connector)
InstallationWall mount, DIN-Rail (optional)
Reset ButtonYes
Environmental Limits
Operating Temperature-40°C ~ 70°C (-40°F ~ 158°F)
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95%, (Non-condensing)
EMCFCC Part 15, Subpart B, Class A
EN 55032, EN 61000-3-2, EN 61000-3-3, EN 55024
RoHS 2Yes
StandardItemTest pointValueLevel
IEC 61000-4-2Electrostatic DischargeContact Discharge±4kV2
IEC 61000-4-2Electrostatic DischargeAir Discharge±8kV3
IEC 61000-4-3Radiated Susceptibility80-1000MHz3(V/m)2
IEC 61000-4-4EFTAC Power Port±1.0kV2
IEC 61000-4-4EFTSignal Port±0.5kV2
IEC 61000-4-5SurgeAC Power PortLine-to Line±1.0kV3
IEC 61000-4-5SurgeAC Power PortLine-to Earth±2.0kV3
IEC 61000-4-5SurgeSignal PortLine-to Earth±1.0kV2
IEC 61000-4-6Conducted Susceptibility0.15-80MHz3 Vrms2
IEC 61000-4-8PFMFEnclosure1A/m2
IEC 61000-4-11DIPAC Power Port1. >95%,Reduction,0.5period
2. 30%, Reduction,25 period
3. >95%,Reduction,250 period
ShockMIL-STD-810F Method 516.5
DropMIL-STD-810F Method 516.5
VibrationMIL-STD-810F Method 514.5 C-1 & C-2
Warranty5 Years
MTBF54.58 years according to MIL-HDBK-217F, 25 degrees C
ProtectionIEC/EN60529 - IP30


SE5201C-DB1P1SE5201C0001GSemi-Industrial Serial Device Server, 10/100BASE-T(X), RS232/422/485 DB9
SE5201C-TB1P1SE5201C0002GSemi-Industrial Serial Device Server, 10/100BASE-T(X), RS232/422/485 TB5
UV305-0510(US-DC)50500051500003GDC jack (3.5/1.35/7.5 mm) power adapter, 100~240VAC input, 1.0A @ 5 VDC output, US plug, LV6
UVE305-0510 (EU-DC)50500051500013GDC jack (3.5/1.35/7.5 mm) power adapter, 100~240VAC input, 1.0A @ 5 VDC output, EU plug, LV6
UVE305-0510(UK-DC)50500051500023GDC jack (3.5/1.35/7.5 mm) power adapter, 100~240VAC input,
1.0A @ 5 VDC output, UK plug, LV6
ADP-DB9(F)-TB559906231GFemale DB9 to Female 3.81mm TB5 Converter
ADP-DB9(M)-DB9(F)59901411GSE_MB52XX DB9 Pin assignment to SE_MB50XX DB9 Pin assignment
DK-2530200000000022GPlastic DIN Rail Kit


Version Name Time Size Download
v1.0 Linux_Driver_x64 2021-04-06 210.16 KB
v5.60 Management Utility for Windows 2021-01-18 23.65 MB
v5.20 Management Utility for Windows 2016-10-28 16.21 MB


Version Name Time Size Download
v1.17 SE52XX Firmware 2021-07-02 9.97 MB
v1.14 SE52XX Firmware 2020-11-17 9.98 MB
v1.13 SE52XX Firmware 2020-08-25 9.98 MB
v1.10 SE52XX Firmware 2020-05-06 9.71 MB
v1.08 SE52XX Firmware 2019-08-23 0 B
v1.03 SE52XX Firmware 2018-10-30 0 B


Version Name Time Size Download
v0.7 Datasheet EN 2023-11-01 173.53 KB
v0.6 Datasheet EN 2020-09-26 224.28 KB
v0.5 Datasheet EN 2020-06-15 224.3 KB
v0.4 Datasheet EN 2019-12-11 243.58 KB
v0.3 Datasheet EN 2019-01-14 243.69 KB


Version Name Time Size Download
v1.4 SE52XX User Manual 2021-03-19 1.96 MB
v1.1 SE52XX User Manual 2019-06-03 2.51 MB
v1.2 SE52XX User Manual 2019-08-22 2.65 MB

Hardware Installation Guide

Version Name Time Size Download
v1.1 SE5201-SE5201C Series Hardware Installation Guide 2019-01-14 7.16 MB

Test reports

Version Name Time Size Download
SE5201C Declarations of Conformity 2023-03-09 292.46 KB
v1.0 SE5201C Certification CE_FCC 2019-11-20 3.6 MB
v1.0 SE5201C Certification LVD 2019-11-20 2.4 MB

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