Moxa - DE-311 3 in 1 Port Serial Device Server
![]() |
|
|
|
Features and Benefits
- 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
Overview
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 Moxa 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.
| • LAN Interface | |
| Number of Ports | 1 |
| Speed | NPort DE-211: 10 Mbps, auto MDI/MDIX NPort DE-311: 10/100 Mbps, auto MDI/MDIX |
| Connector(s) | 8-pin RJ45 |
| Magnetic Isolation Protection | 1.5 KV built-in |
| • Serial Interface | |
| Serial Standards | RS-232/422/485 (selectable by DIP Switch) |
| Number of Ports | 1 |
| Connector(s) | NPort DE-211: DB25 female NPort DE-311: DB9 female |
| Serial Line Protection | 15 KV ESD protection for all signals |
| RS-485 Data Direction Control | ADDC® (automatic data direction control) |
| • Serial Communication Parameters | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Even, Odd, Space, Mark |
| Flow Control | RTS/CTS, XON/XOFF |
| Baudrate | 50 bps to 230.4 Kbps |
| • Serial Signals | |
| RS-232 | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| RS-422 | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-4w | Tx+, Tx-, Rx+, Rx-, GND |
| RS-485-2w | Data+, Data-, GND |
| • Software | |
| Network Protocols | DHCP, BootP, Telnet, , TCP, UDP, IP, ICMP, ARP |
| Configuration Options | Serial Console, Telnet Console, Windows Utility |
| Windows Real COM Drivers | Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008 x86/x64, Embedded CE 5.0/6.0, XP Embedded |
| Fixed TTY Drivers | SCO Unix, SCO OpenServer, UnixWare 7, UnixWare 2.1, SVR 4.2, QNX 4.25, QNX 6, Solaris 10, FreeBSD, AIX 5.x, HP-UX 11i |
| Linux Real TTY Drivers | Linux kernel 2.4.x, 2.6.x |
| • Physical Characteristics | |
| Housing | Metal, IP30 protection |
| Weight | 480 g |
| Dimensions | Without ears: 67 x 100.4 x 22 mm (2.64 x 3.95 x 0.87 in) With ears: 90.2 x 100.4 x 22 mm (3.55 x 3.95 x 0.87 in) |
| • Environmental Limits | |
| Operating Temperature | 0 to 55°C (32 to 131°F) |
| Operating Humidity | 5 to 95% RH |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| • Power Requirements | |
| Input Voltage | DE-211: 12 to 30 VDC DE-311: 9 to 30 VDC |
| Power Consumption | NPort DE-211: 180 mA @ 12 V, 100 mA @ 24 V NPort DE-311: 300 mA @ 9 V, 150 mA @ 24 V |
| • standard and certifications |
|
| Safety |
UL 60950-1, EN 60950-1 |
| EMC | CE, FCC |
| EMI | EN 55022 Class A, FCC Part 15 Subpart B Class A |
| EMS | EN 55024 |
| Medical | EN 60601-1-2 Class B, EN 55011 (DE-311 only) |
| • reliability |
|
| MTBF (mean time between failures) | NPort DE-211: 347,822 hrs NPort DE-311: 225,529 hrs |
| • Warranty | |
| Warranty Period | 5 years |
| Details | See www.moxa.com/warranty |
External Device Servers
| Ordering Info | Model No. | Description |
| Click here to order |
NPort® DE-311 |
1-port RS-232/422/485 device server with 10/100 Mbps Ethernet connection |
DIN-Rail Mounting Kit
| Ordering Info | Model No. | Descritpion |
| Click here to order | DIN-Rail Mounting Kit (35 mm) |



