Industrial-Grade 4-Port Serial Device Server, 2 Fast-Ethernet RJ45 ports, dual power inputs, optional isolation

  • 8KV ESD protection for serial signals
  • Dual 10/100Mbps Fast Ethernet for redundancy with full duplex auto negotiation
  • 4-port RS-232/RS-422/RS-485, baud rate up to 460.8 Kbps
  • Rigid IP30 Metal housing, DIN-Rail and wall mount support
  • Support RAW TCP Server/ TCP Client / UDP / Virtual COM / Tunneling Modes
  • Configuration: Built-in Web Server /Serial Console/ Telnet / Windows-based Utility
  • Monitor, manage and control industrial field devices remotely

Make Serial Devices Ready to the Network 

The Industrial Serial Server SE5404D is a 4-port gateway between Ethernet (TCP/IP) and serial signal communications. It allows almost any serial device to be connected to a new or existing Ethernet network. 

By encapsulating serial data and transporting it over to Ethernet, SE5404D offers full-duplex, bi-directional data transmission transparent between serial port and Ethernet network. 

Easy to Use 

Flexible configuration options enable this unit to be setup over Ethernet by Telnet, Web browser, Serial Console, or other utilities. Packed in a rugged metal housing for DIN rail or wall mount with 9~48VDC wide power input range, SE5404D is ideal for almost any industrial and manufacturing automation. Atop Virtual COM software provides existing Windows based applications to access a serial device by mapping to a remote serial server via Ethernet. 

Specially Designed for Automation Fields 

In industrial and manufacturing automation fields, SE5404D is used as a field device to connect Ethernet through TCP/IP protocol directly. It is also specially designed for conjunction with PLCs, HMIs, Barcode Scanners, Data Terminals, Electronic Kanbans, Shop Floor Control Systems, and Pick-to- Light Systems. 

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CPU32-bit 266MHz RISC Processor with MMU
Flash2+8 MB (2MB for Bootloader)
RAM32 Mbytes DDR
WatchdogHardware build-in
Compliance IEEE802.3
Port 2
Transmission Rate 10/100 Mbps Auto-detection
Connector RJ-45
Auto MDI/MDI-X Yes
Link Mode
TCP Server Up to 4 connections or Virtual COM / Reverse Telnet modes
TCP Client Up to 2 destination or Virtual COM mode
UDP Up to 8 Ranges of IPs
Interface RS-232/422/485 Software selectable(SE5404D/SE5404D-TB)
RS-422/485 Software selectable(SE5404D-Sis)
Ports 4 Ports
Baud Rate 50bps~460.8kbps (SE5404D/SE5404D-TB)
300bps~460.8kbps (SE5404D-Sis)
Parity None, Odd, Even, Mark, Space
Data bits 5, 6, 7, 8
Stop Bit 1,2
Flow Control None, Software:Xon/Xoff,Hardware:RTS/CTS
Protection 8KV ESD / 2KV Magnetic Isolation (SE5404D-Sis only)
Connector 9-pin D-Sub / 5-Pin 3.81mm lockable Terminal Block
Input 9-48DCV, 0.65A max
Consumption Max. 5.85W
Connector 7-pin 5.08mm connector for redundant power input
Indicator COM, LAN, RUN
Operating -40°C~80°C(-40°F~176°F)
Storage -40°C~85°C(-40°F ~185°F)
Humidity 5%~95% Non-condensing
W x H x D 53.4mm x 145.7mm x 119.9mm
Weight 900g
Installation DIN-Rail / Wall mount (Optional)
Warranty 5 years
Preceding 188251 hours / 21.5 years (MIL-HDBK-217F)
Configuration Web Page / Telnet / Serial console / Windows Utility
Virtual COM Windows & Linux port redirection software
Supported Protocol ICMP, TCP (UDP)/IP, DHCP Client, NTP,DNS, SNMP, SMTP, HTTP,Telnet
Safety EN 60950-1:2011
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6
MTBF 21 years
Regulatory Approvals
EMCFCC Class A, CE Class A
IEC 61000-4-2ESDEnclosure Contact6 kV3A
Enclosure Air8 kV3A
IEC 61000-4-3RSEnclosure Ports10 V/m3A
IEC 61000-4-4EFTSignal Ports1 kV3A
Power Ports2 kV3A
IEC 61000-4-5SurgeSignal Ports2 kV line-to-earth3A
Power Ports0.5 kV line-to-earth2A
IEC 61000-4-6CSSignal Ports10 V3A
Power Ports10 V3A
IEC 61000-4-8PFMFEnclosure Ports1 A/m continuous1A
4-Port Serial Device Server, DIN-Rail, D-Sub
4-Port Serial Device Server, DIN-Rail, Terminal Block
4-Port Serial Device Server, DIN-Rail, Terminal Block, 2KV Magnetic Isolation
Power Adapter
US315-12 (US-Y)
US315-12 (US-Y) P/N:50500151120009G
Y-Type power adapter, 100-240VAC input,
1.25A @ 12VDC output, US plug
USE315-12 (EU-Y) P/N:50500151120019G
Y-Type power adapter, 100-240VAC input,
1.25A @ 12VDC output, EU plug
7-pin Terminal Block P/N:50707871G
Lockable 7-pin 5.08mm Pitch Terminal Block with 180˚ Angle
7-pin Terminal Block P/N:50707741G
Lockable 7-pin 5.08mm Pitch Terminal Block with 90˚ Angle
Wall Mount KitP/N:202EH731000003G
Black metal wall mount kit
Console CableP/N:50891971G
90cm RJ-45 to DB9 female console cable
Grounding CableP/N:59906861G
120mm copper woven grounding cable
DB9 to TB5converterP/N:59906231G
Female DB9 to Female 3.81mm TB5 Converter
Conductive DIN-RailKitP/N:201EH731000005G
Conductive silver metal DIN-Rail Kit

End of Life Notice

Download PDF


Virtual COM driver for Linux version 2.31MB

Products Brochure

V5 CA_SE5404D 2.85MB


V1.4 SE5404D User Manual 3.11MB

Quick Start Guide

V1.1 SE5404D Hardware Installation 0.24MB


V4.54 SE5404D F/W 4.26MB

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