---
lang: "en"
title: "MOXA NPort Express DE-311"
sku: "NPORT DE-311"
canonical_url: "https://shop.marcomweb.it/en/device-server/moxa-nport-express-de-311"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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MOXA DE-311: 1-port RS-232/422/485 serial device server

NPort DE-311 devices are 1-port serial servers supporting RS-232, RS-422, and 2 or 4-wire RS-485. 
 They support 10/100 Mbps Ethernet connections and feature a female DB9 connector for the serial port. 
 Ideal for applications such as information displays, PLCs, flow meters, gas meters, CNC machines, biometric and identification card readers.

## Technical Specifications

 

| Ethernet Interface | - 1x 10/100 Mbps port, auto MDI/MDIX
- Connector: 8-pin RJ45
- Magnetic Isolation: 1.5 KV built-in |
|---|---|
| Serial Interface | - 1x serial port: RS-232/422/485 (selectable with DIP Switch)
- Connector: DB9 female
- Protection: 15 KV ESD 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: 150 bps to 230.4 Kbps |
| Serial Signals | - RS-232: TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
- RS-422: Tx+, Tx-, Rx+, Rx-, RTS+, RTS-, CTS+, CTS-, GND
- RS-485-4w: Tx+, Tx-, Rx+, Rx-
- RS-485-2w: Data+, Data-, GND |
| Software | - Network Protocols: DHCP, BOOTP, Telnet, TCP, UDP, IP, ICMP, ARP
- Configuration Interfaces: 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 | - Metal casing, IP30
- Weight: 480 gr
- Dimensions: 90.2 x 100.4 x 22 mm |
| Power Supply | - 9 ~ 30 VDC
- Max consumption 300mA @ 9VDC |
| Environmental Conditions | - Operating Temperature: 0 ~ 55°C
- Humidity: 5 ~ 95% (non-condensing) |

 

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Source: https://shop.marcomweb.it/en/device-server/moxa-nport-express-de-311

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.