NPort Express Series
1-port entry-level RS-232/422/485 serial device servers

Features and Benefits
- 3-in-1 serial port: RS-232, RS-422, or RS-485
- Variety of operation modes, including TCP Server, TCP Client, UDP, Ethernet Modem, and Pair Connection
- Real COM/TTY drivers for Windows and Linux
- 2-wire RS-485 with Automatic Data Direction Control (ADDC)
Certifications
- UL Listed
- CE
- FCC
Introduction
The NPort® DE-211 and DE-311 are 1-port serial device servers that support RS-232, RS-422, 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.
Models in this series (2)
| — | DE-211 | DE-311 | — | — |
| Ethernet Port Speed | 10 Mbps | 10/100 Mbps | ||
| Serial Connector | DB25 female | DB9 female | ||
| Power Input | 12 to 30 VDC | 9 to 30 VDC | ||
| Medical Certifications | – | EN 60601-1-2 Class B, EN 55011 | ||
| — | Add to Quote View Bag Buy from distributors (for USA only) | Add to Quote View Bag Buy from distributors (for USA only) |
Specifications
Shown for DE-211. Per-model differences are listed in the selection grid above.
Ethernet Interface
- No. of Ports
- 1
- Magnetic Isolation Protection
- 1.5 kV (built-in)
- 10BaseT(X) Ports, RJ45 Connector
- Auto MDI/MDI-X connection
Ethernet Software Features
- Configuration Options
- Windows Utility, Telnet Console, Serial Console
- Management
- ARP, BOOTP, DHCP Client, IPv4, TCP/IP, Telnet, UDP, ICMP
- Linux Real TTY Drivers
- Kernel versions: 2.4.x, 2.6.x, 3.x, 4.x, and 5.x
- Fixed TTY Drivers
- SCO UNIX, SCO OpenServer, UnixWare 7, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i, Mac OS X
- Android API
- Android 3.1.x and later
- Windows Real COM Drivers
- Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10/11 (x86/x64), Windows 2008 R2/2012/2012 R2/2016/2019 (x64), Windows Server 2022, Windows Embedded CE 5.0/6.0, Windows XP Embedded
Serial Interface
- Connector
- DB25 female
- Serial Standards
- RS-232, RS-422, RS-485
- No. of Ports
- 1
- Baudrate
- Supports standard baudrates (unit=bps): 50, 75, 110, 134, 150, 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 19200, 38400, 57600, 115200, 230.4k
- Data Bits
- 5, 6, 7, 8
- Stop Bits
- 1, 1.5, 2
- Parity
- None, Even, Odd, Space, Mark
- Flow Control
- None, RTS/CTS, XON/XOFF
- RS-485 Data Direction Control
- ADDC (automatic data direction control)
Serial Signals
- RS-232
- TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
- RS-422
- Tx+, Tx-, Rx+, Rx-, RTS+, RTS-, CTS+, CTS-, GND
- RS-485-2w
- Data+, Data-, GND
Power Parameters
- Input Current
- 180 mA @ 12 VDC 100 mA @ 24 VDC
- Input Voltage
- 12 to 30 VDC
Reliability
- Alert Tools
- Built-in buzzer and RTC (real-time clock)
Physical Characteristics
- Housing
- Metal
- Dimensions (with ears)
- 90.2 x 100.4 x 22 mm (3.55 x 3.95 x 0.87 in)
- Dimensions (without ears)
- 67 x 100.4 x 22 mm (2.64 x 3.95 x 0.87 in)
- Weight
- 480 g (1.06 lb)
Environmental Limits
- Operating Temperature
- 0 to 55°C (32 to 131°F)
- Storage Temperature (package included)
- -40 to 75°C (-40 to 167°F)
- Ambient Relative Humidity
- 5 to 95% (non-condensing)
Standards and Certifications
- EMC
- EN 55032/35
- EMI
- CISPR 32, FCC Part 15B Class B
- EMS
- IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV IEC 61000-4-5 Surge: Power: 1 kV IEC 61000-4-5 Surge: Power: 1 kV; Signal: 1 kV IEC 61000-4-6 CS: 150 kHz to 80 MHz: 10 V/m; Signal: 10 V/m IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m IEC 61000-4-11
- Safety
- UL 60950-1
Declaration
- Green Product
- RoHS, CRoHS, WEEE
MTBF
- Time
- 347,822 hrs
- Standards
- MIL-HDBK-217F
Warranty
- Warranty Period
- 5 years
- Details
- See www.moxa.com/warranty
Resources
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