8-Port Rack Mountable Serial Device Server with RJ45 Serial connectors, 2.5 KV Isolation, 2 Fast-Ethernet RJ45 Ports

  • Standard 19-inch rack-mount high metal housing
  • Industrial EMC protection
  • TCP Server/Client, UDP, Virtual COM and Tunneling modes
  • Dual 10/100Mbps Ethernet for networking redundancy
  • Remotely monitor, manage, and control industrial
    field devices
  • Configuration via Web Browser / Serial Console / Telnet Console / Windows Utility 
  • Relay out indicator for Network link-status
  • LCM display with 4-key touch pad for configuration
  • Remote firmware upgrade
  • Isolation (for SE5408A / SE5416A)
  • Adjustable termination & pull high/low resistors

Make Serial Devices Ready to the Network 

The Industrial Serial Device Server is a gateway between 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, the Serial Device Server offers full-duplex and bi-directional data seamlessly between the serial ports and the Ethernet network. 

Easy to Use 

Flexible configuration options enable this unit to be setup over Ethernet by Telnet, Web browser, Serial Console, or our Windows utilities. Packed in a rugged metal housing with 19-inch rack mount and 100~240VAC or 24-48VDC power input range. 

The LAN port 1 and LAN port 2 can be assigned to different subnets. This feature gives the user flexible network manageability. Alternatively, the LAN port 1 and LAN port 2 can be assigned to the same IP network. It will enable the network to recover rapidly from failure and fault, so that the failures and faults will be bypassed. 

Specially Designed for Automation Fields 

In industrial and manufacturing automation fields, The Serial Device Server 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, Electronic Kanbans, Shop Floor Control Systems, and Pick-to-Light Systems. 

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ComplianceIEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
Transmission Rate10/100 Mbps
ModeRS-232 or RS-422/RS-485
Baud rate50bps~921kbps
ParityNone, Odd, Even, Mark, Space
Data bits5,6,7,8
Stop Bit1,2
Flow ControlNone, Xon/Xoff, RTS/CTS (RS-232 only)
ConnectorIEC 60320-1 C14 AC Power Inlet (AC models) / 5.08mm 3-pin Lockable Terminal Block (DC models)
Input Voltage100~240 VAC (AC models) / 24-48 VDC (DC models)
Input Current0.21A (AC models) / 0.54A (DC models)
Power Consumption21W (AC models) / 13W (DC models)
Reverse Polarity ProtectionYes
EMCFCC Class A, CE Class A
EMSESD Level 4, RS Level 3, EFT Level 3, Surge Level 2, CS Level 3, PFMF Level 3, DIP. 
SafetyEN 60950-1
ShockIEC 60068-2-27
FreefallIEC 60068-2-32
VibrationIEC 60068-2-6
Operating-20°C~70°C (-4°F~158°F)
Storage-40°C~85°C (-40°F~185°F)
(W x H x D)436 mm x 43.5 mm x 200 mm
Installation19” Rack Mount
Reset ButtonYes
ConfigurationSerial Manager / Web UI / Telnet / Serial Console
Virtual COMWindows / Linux driver
Supported ProtocolIPv4, ICMP, TCP, UDP, DHCP Client, SNMP, HTTP, Telnet, RFC2217, NTP, DNS, SMTP, Syslog
Link Mode
TCP Server4 Connections, Virtual COM, Reverse Telnet
TCP ClientDual Destinations or Virtual COM
UDP8 Ranges of IPs​
Warranty5 years

Model NameP/NDescription
SE5408A-DC1P1SE5408A0002G8-Port Industrial Serial Device Server, RS-232, DC TB3, Rack Mount

Model NameP/NDescription
Power Adapter 
AD17-24C (US-Y)
50500151240002GY-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, US plug
Power Adapter
AD17-24D (EU-Y)
50500151240012GY-Type power adaptor,100-240VAC input, 0.6A @ 24VDC output, EU plug
ADP-DB9(F)-TB559906231GFemale DB9 to Female 3.81mm TB5 Converter
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)-90​50891791GRJ45 to DB9 Female Cable, 90cm
CBL-RJ45(8P)-DB9(F)-90-C50891971GRJ45 to DB9 Female Cross Over Cable, 90cm
CBL-RJ45(8P)-DB9(F)-200-C50891961GRJ45 to DB9 Female Cross Over Cable, 90cm
RMK-718-Black70100000000040GRack Mount Mounting-Kit, Black
Power Cable (US)50801041G6 feet Power Cable, US
Power Cable (EU)50801051G6 feet Power Cable, EU
Fuse59907561G250V, 2A, 20mm (length) * 5mm (diameter)​

End of Life Notice

Download PDF


Virtual COM Driver for Windows V 2.31MB
Virtual COM driver for Linux version 2.31MB

Products Brochure

SE5408A/SE5416A 0.75MB


V1.1 SE54XX User Manual 2.64MB

Quick Start Guide

V1.1 SE5408/16A Quick Start Guide 0.23MB


V4.54 SE54XX F/W 4.27MB

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