SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series
SE5904D Series

SE5904D Series

4-Port Industrial Secure Wide-Temperature Serial Device Server

  • Remotely monitor, manage, and control industrial field devices
  • Industrial EMC protection, wide temperature operation, -40°C~85°C
  • Fast-Ethernet ports or 2x 100/1000 SFP slots with RSTP Redundancy
  • 4 Software-selectable RS-232/RS-485/RS-422 serial ports, up to 921kbps
  • TCP Server/Client, UDP, Virtual COM and Tunneling modes supported
  • Embedded security with PPTP, IPsec or OpenVPN client/server
  • Isolated Redundant 12~48 VDC Power Inputs or powered (PoE models) through through the Ethernet cable (802.3af)
  • Configuration via Web Browser/ Serial Console/ Telnet/ Windows Utility
  • Rugged metal case with wall or DIN-Rail mount

Make Serial Devices Ready to the Network
The Industrial Serial Device Server SE5904D is a cost effective gateway for Ethernet (TCP/IP) and serial signal communications; allowing almost any serial device to be connected to a new or existing Ethernet network. By encapsulating serial data and transporting it over Ethernet, SE5904D offers full-duplex and bi-directional data seamlessly between the four serial ports and the Ethernet network, through 2x 10/100 Ethernet ports or 2x 100/1000 SFP Fiber slots.

Advanced embedded security
SE5904D embeds OpenVPN and IPsec VPN, that allows you to tunnel your data securely throught the internet and prevent unauthorized control of your Serial Devices by malicious people. The integrated Rapid Spanning Tree Protocol (RSTP), allows you to add a backup Ethernet link in the event the primary one fails.

Easy to Use
Flexible configuration options enable this unit to be setup over Ethernet by Telnet, Web Browser, Serial Console, or our Windows Utility. Packed in a rugged metal housing for wall or DIN-Rail mount with redundant 12-48 VDC wide range power input and one relay output, SE5904D is ideal for almost any industrial and manufacturing automation process. Atop Virtual COM software provides a virtual environment for applications when accessing SE5904D through TCP.

Specially Designed for Automation Fields and Harsh Environments
In industrial and manufacturing automation fields, SE5904D is used as a field device to connect the Ethernet through TCP/IP protocol directly. It is also specially designed for conjunction with PLCs, HMIs, Barcode Scanners, Data Terminals, and much more. Its design protects it from very harsh EMC and environmental conditions, making it a cost-effective choice for advanced applications.

Rugged and flexible for advanced developments
SE5904D embeds high EMC protection, wide temperature operation, programming and installation flexibility in one device. PoE versions can be powered through Power-over-Ethernet (PoE 802.3af), without additional cabling and power supply. SDK versions allow you to make use of the powerful hardware and develop your own applications on top of Atop’s reliable SDK.

Network Interface
SpeedIEEE 802.3 10BaseT
IEEE 802.3u 100BaseT(X)
IEEE 802.3u for 100Base-X (SFP version only)
IEEE 802.3z for 1000Base-X (SFP version only)
PoE standard supportedIEEE 802.3 af (-PoE version only)
LAN ModeDual Subnets or Network Redundancy
Connector ports2x 10/100BASE-T(X) RJ-45 or
2x 100/1000 Base-X SFP Slots (SFP version)
Serial Interface
Connector1x2 5 pin 3.81mm Terminal Block, or D-sub9 connector
ModeRS-232/422/485, software selectable
Baud Rate1,200~921,600 bps
ParityNone, Odd, Even
Data Bits7,8
Stop Bits1,2
Isolation3 KV
Other Interfaces
USB Ports1
SpeedUSB 2.0
ConnectorUSB A Type
ProtocolsIPv4, ICMP, TCP, UDP, DHCP Client, SNMPv1,v2c,v3, HTTP, HTTPS, Telnet, SMTP/TLS, RFC2217, 802.1D-2004 RSTP, Security through OpenVPN (client/server) or IPsec (host-to-host or host-to-side) with up to 37.9Mbps VPN throughput, and PPTP
ConfigurationAtop Management Utility, Web UI, Telnet, Serial Console
VirtualCOMWindows/Linux redirection software
Link Modes - TCP ClientSingle destination or VirtualCOM
Link Modes - TCP Server4 Connections; VirtualCOM or reverse Telnet
Link Modes - UDPUp to 4 Ranges IP
Input VoltageDual 12 - 48VDC (non-PoE Models); or through Ethernet Cable (PoE versions)
Input Current (@ 12VDC)0.65 A @ 12 VDC
Power ConsumptionApproximately 8 W (Max)
Connector7-Pin 5.08mm Lockable Terminal Block
Power RedundancyYes
Reverse Polarity ProtectionYes
Relay Output1A @ 30 VDC (normal open)
Physical CharacteristicsValue
HousingIP30 SPCC housing
Dimension (W x H x D)55 x 145 x 113 mm
InstallationDIN-Rail , Wall mount (optional kit)
Reset ButtonYes
Environmental Limits
Operating Temperature-40°C~85°C (-40°F~185°F)
Storage Temperature-40°C~85°C (-40°F~185°F)
Ambient Relative Humidity5%~95%, 55°C (Non-condensing)
SafetyIEC/EN 61010-1, IEC/EN61010-2-201, UL61010-1, UL61010-2-201
EMCFCC Part 15, Subpart B, Class A
EN 55032, EN 61000-3-2, EN 61000-3-3, EN 55024, EN 61000-6-2, EN 61000-6-4
IEC 61000-4-2ESDContact Discharge±6kV3
IEC 61000-4-2ESDAir Discharge±8kV3
IEC 61000-4-3RS80-1000MHz10 V/m3
IEC 61000-4-3RS1.4-2.0GHz3 V/m2
IEC 61000-4-3RS2.0-2.7GHz1 V/m1
IEC 61000-4-4EFTAC Power Port±2.0kV3
IEC 61000-4-4EFTDC Power Port±2.0kV3
IEC 61000-4-4EFTSignal Port±1.0KV3
IEC 61000-4-5SurgeAC Power PortLine-to Line±2.0KV4
IEC 61000-4-5SurgeAC Power PortLine-to Earth±2.0KV3
IEC 61000-4-5SurgeDC Power PortLine-to Line±1.0KV3
IEC 61000-4-5SurgeDC Power PortLine-to Earth±1.0KV2
IEC 61000-4-5SurgeSignal PortLine-to Earth±2.0K3
IEC 61000-4-6CS0.15-80MHz10 Vrms3
IEC 61000-4-8PFMF0.15-80MHz30 A/m4
IEC 61000-4-11DIPAC Power Port--
ShockIEC 60068-2-27
DropIEC 60068-2-32
VibrationIEC 60068-2-64
MTBF14.56 Years (according to MIL-HDBK-217F)
Warranty5 Years
SE5904D-4P-DB1P1SE5904D0004GInd. 4-Port Serial Device Server, 10/100BASET(X), DB92 (RJ45)4 (DB9)
SE5904D-4P-TB1P1SE5904D0005GInd. 4-Port Serial Device Server, 10/100BASET(X), TB52 (RJ45)4 (TB5)
SE5904D-4P-Sis1P1SE5904D0006GInd. 4-Port Ser. Dev. Serv,10/100BASET(X), 3kV Isolated2 (RJ45)4 (TB5)
SE5904D-4P-PoE-DBContact HeadquarterInd. 4-Port Ser. Dev. Serv, 10/100BASET(X)with PoE, DB92 (RJ45)4 (DB9)
SE5904D-4P-PoE-TBContact HeadquarterInd. 4-Port Ser. Dev. Serv, 10/100BASET(X)with PoE, TB52 (RJ45)4 (TB5)
SE5904D-4P-PoE-SisContact HeadquarterInd. 4-Port Ser. Dev. Serv, RJ45, PoE, 3kV Isolated2 (RJ45)4 (TB5)
SE5904D-4P-G-DB-SFP1P1SE5904DG001GInd. 4-Port Ser. Device Server, 100/1000BASEX SFF, DB92 (SFP)4 (DB9)
SE5904D-4P-G-TB-SFP1P1SE5904DG002GInd. 4-Port Serial Device Server, 100/1000BASEX SFP, TB52 (SFP)4 (TB5)
SE5904D-4P-G-Sis-SFP1P1SE5904DG003GInd. 4-Port Serial Serv,100/1000BASEX SFP,3kV Isolated2 (SFP)4 (TB5)
SDK versionContact HeadquarterSDK programmable version available upon request24
SDR-75-2450500752240001G75W/3.2A DIN-Rail 24VDC power supply with 88~264VAC / 124~370VDC input
CBL-RJ45(8P)-DB9(F)-90-C50891971G8-pin RJ45-DB9 debug cable, 90cm
ADP-DB9(F)-TB559906231GFemale DB9 to Female 3.81 TB5 Converter
GDC-12059906861G120mm copper woven grounding cable
WMK-450-Black70100000000052GAluminum wall mount kit
LM28-C3S-TI-N50708031GSFP Transceiver, 1250Mbps, 850nmVCSEL, Multi-mode, 550m, 3.3V, -20~85°C
LM38-C3S-TI-N50709411GSFP Transceiver, 1250Mbps, 1310nmFP, Multi-mode, 2km, 3.3V, -40~85°C
LS38-C3S-TI-N50709391GSFP Transceiver, 1250Mbps, 1310nmFP, Single-mode, 10km, 3.3V, -40~85°C
LS38-C3L-TI-N50709441GSFP Transceiver, 1250Mbps, 1310nmDFB, Single-mode, 30km, 3.3V, -40~85°C


v1.0Linux_Driver_x642021-03-29210.16 KB
v5.60Management Utility for Windows2021-01-1823.65 MB
v5.20Management Utility for Windows2016-10-2816.21 MB


v1.51SE59XX Firmware2020-08-0617.53 MB
v1.46SE59XX Firmware2020-01-1517.31 MB
v1.40SE59XX Firmware2019-06-060 B
v1.32SE59XX Firmware2018-12-050 B
v1.18SE59XX Firmware2018-05-0412.7 MB
v1.10SE59XX Firmware2017-11-2411.68 MB


v0.9Datasheet EN2020-07-10607.66 KB
v0.8Datasheet EN2018-05-18506.18 KB
v0.7Datasheet EN2018-05-02512.78 KB


v1.8SE59XX User Manual2021-03-195.23 MB
v1.6SE59XX User Manual2019-08-224.89 MB
v1.5SE59XX User Manual2019-07-234.52 MB
v1.4SE59XX User Manual2019-01-304.54 MB
v1.3SE59XX User Manual2018-12-054.57 MB
v1.2SE59XX User Manual2018-04-264.25 MB

Hardware Installation Guide

v1.1SE5904D/MB5904D/PG5904D Hardware Installation Guide2016-03-233.81 MB

Test reports

v1.0SE-MB-PG5904D Certifications CE_FCC2019-11-203.59 MB
v1.0SE-MB-PG5904D Certifications EN61000-6-2&42019-11-206.11 MB
v1.0SE-MB-PG5904D Certifications Environmental2019-11-204.6 MB
v1.0SE-MB-PG5904D Certifications LVD2019-11-203.62 MB
v1.0SE-MB-PG5904D Certifications UL2019-11-20157.83 KB