NPort DE-211/311

1-port RS-232/422/485 serial device servers

The Moxa NPort® DE-211 and DE-311 are 1-port serial device servers that support RS-232, RS-422, 4-wire RS-485, and 2-wire RS-485. The DE-211 supports 10 Mbps Ethernet connections and has a DB25 female connector for the serial port. The DE-311 supports 10/100 Mbps Ethernet connections and has a DB9 female connector for the serial port.

Both device servers are ideal for applications that involve information display boards, PLCs, flow meters, gas meters, CNC machines, and biometric identification card readers.

  • 3-in-1 serial port: RS-232, RS-422, or RS-485
  • Versatile operation modes including TCP Server, TCP Client, UDP, Ethernet Modem, and Pair Connection
  • Real COM/TTY drivers for Windows and Linux
  • 10M and 100M Ethernet speeds detected automatically
  • 2-wire RS-485 with patented Automatic Data Direction Control (ADDC®)
  • Built-in 15 KV ESD protection for all serial signals
  • 5 Years Warranty
  • Ordering Options
    Manuf. Part No  Part Description 
    DE-211  1-port RS-232/422/485 device server with 10 Mbps Ethernet connection
    DE-311  1-port RS-232/422/485 device server with 10/100 Mbps Ethernet connection

    Manuf. Part No  Part Description 
    TB-M9  DB9 male DIN rail wiring terminal
    NP21103   DB25 terminal block kit for RS-422/485
    NP21102  Male DB25 to male DB9 RS-232 cable; 30 cm
    NP21101  DB25(M) to DB9(F) RS-232 Cable, 30 cm
    DK35A  DIN-Rail Mounting Kit (35 mm)
    Zubehör // Accessories to TOP

    TB-M9 DB9(M) DIN-Rail Wiring Terminal DB9(M) DIN-Rail Wiring Terminal
    The MOXA Wiring Terminal Series comes with easy to wire screw terminals designed for signal wiring in industrial applications ... more
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