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

  • 15KV 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.


Connector RJ-45
Compliance IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
Port(s) 2
Transmission Rate 10/100 Mbps
Connector DB9 (MB5404D-X)
3.81mm 5-pin Lockable Terminal Block (MB5404D-Sis-X)
Mode RS-232 / 422 / 485 (MB5404D-X)
RS-422 / 485 (MB5404D-X)
Isolation For SE5404D-Sis-X
Port(s) 4
Baud rate 300bps~230kbps
Parity None, Odd, Even, Mark, Space
Data bits 7,8
Stop Bit 1,2
Flow Control None, Xon/Xoff, RTS/CTS (MB5404D-X)
None, Xon/Xoff (MB5404D-Sis-X)
Connector 5.08mm 7-pin Lockable Terminal Block
Input Voltage 9-48 VDC
Input Current 0.65A
Power Consumption 5.85W max.
Reverse Polarity Protection Yes
Redundancy Yes
EMC FCC Class A, CE Class A
EMS ESD Level 3, RS Level 3, EFT Level 3, Surge Level 2, CS Level 3, PFMF Level 1, DIP.
Safety EN 60950-1
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6
MTBF 21 years
Operating -40~80?(-40~176°F)
Storage -40°~85°C (-40°~185°F)
Humidity 5~95%RH(Non-condensing)
(W x H x D) 53.4mm x 145.7mm x 119.9mm
Material Metal
Installation Wall mount, DIN Rail (optional)
Reset Button Yes
Weight 900g
Main Feature ID Mapping, Modbus Caching, Modbus Routing
Configuration Serial Manager / Web UI / Telnet
Virtual COM Windows / Linux driver
Supported Protocol IPv4, ICMP, TCP, UDP, DHCP Client, SNMP, HTTP, Telnet, RFC2217, NTP, DNS, SMTP, Syslog
Link Mode
TCP Server 32 Modbus TCP Master/Slave Connections (shared by all COM ports), Virtual COM
Warranty 5 years

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