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Industrial serial connectivity

Industrial 4-port RS232/422/485 to 2-port 10/100TX Device Server (-35°C ~ 75°C)

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SKU: Industrial 4-port RS232/422/485 to 2-port 10/100TX Device Server (-35°C ~ 75°C) Category:


  • Redundant Dual Ethernet Ports: Recovery Time < 10ms
  • Switch Mode Support: Daisy Chain to Reduce Usage of Switch Ports
  • NAT-Pass Through: Users Can Manage Through NAT Router
  • Redundant Power Inputs: 12 ~ 48VDC on Terminal Block
  • Redundant Multiple Host Devices:
  • 5 Simultaneous in Virtual COM, TCP Server, TCP Client Mode, UDP
  • Secured Management by HTTPS and SSH
  • Event Warning by Syslog, Email, SNMP Trap, and Beeper
  • 5-Year Warranty

The STE-604C is an innovative 4 port RS232/422/485 to 2 port LAN (TCP/IP) redundant device server. To assure the agility and security of critical data, the STE-604C offers many powerful features for HW & SW redundant functions. When the connection between the master-link and LAN fails, the STE-604C can automatically switch to another LAN port within 10ms and still guarantee a non-stop connection. The STE-604C also supports switch mode. Users can Daisy Chain to reduce the usage of Ethernet switch ports. Secondly, the STE-604C can simultaneously transfer data into 5 host PCs. This feature can assure all critical data is saved in different host PCs to avoid Ethernet break or host PC failure. Thirdly, the STE-604C provides dual redundant power inputs on the DC power jack and terminal block. The unit provides a NAT pass through function so that users are able to manage their STE-604C inside or outside the NAT router. It is also easy for different IP domain users to use the STE-604C. The STE-604C is one of the best communication redundant solutions for any serial RS232, RS422 or RS485 device application.

Led Displays PWR 1(2)/Ready, Link/ACT, Serial TX/RX
Power Dual DC Inputs
12 ~ 48VDC in 6-pin Terminal Block
Power Consumption 5.5 Watts
Data Rate 110 bps to 460.8 Kbps
Overload Current Protection Present
Reverse Polarity Protection Present
Operating Temperature -30° C to 70° C (-22° F to 158° F)
Storage Temperature -40° C to 85° C (-40° F to 185° F)
Operating Humidity 5% to 95% (Non-Condensing)
Casing Enclosure IP30 Protection
Serial Connector 4 x DB9
Dimensions 52 x 144 x 106 mm (2.05 x 5.67 x 4.17 inches)
Parity Odd, Even, None, Mark, Space
Weight 678 g
Stop Bits 1, 1.5, 2
Approvals EMI: FCC Part 15, CISPR (EN55022) Class A
EMS: CE EN61000-4-2/3/4/5/6/8/11
Shock: IEC60068-2-27
Free Fall: IEC60068-2-32
Vibration: IEC60068-2-6
Safety: EN60950
Network Interface 2 x 10/100BaseT(X) Ports in RJ-45 Auto MDI/MDI-X
Serial Interface RS-232/422/485
Warranty 5-year Warranty
Data Bits 5, 6, 7, 8
Pins RS_422 Tx+, Tx-, Rx+, Rx-, GND
Pins RS_485 4-Wire: Tx+, Tx-, Rx+, Rx-, GND
2-Wire: Data+, Data-, GND
Pins RS_232 TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND