NPort Express DE-311

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

	Datasheet Manual Drivers & Software
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Features

Specifications

Ordering Information

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 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.

• LAN Interface
Number of Ports	1
Speed	10/100 Mbps
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)	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-, RTS+, RTS-, CTS+, CTS-, GND
RS-485-4w	Tx+, Tx-, Rx+, Rx-, GND (DE-211 only)
RS-485-2w	Data+, Data-, GND

• Software
Network Protocols	DHCP, BootP, Telnet, , TCP, UDP, IP, ICMP, ARP
Driver Support	Windows Real COM driver (for Windows 95, 98, ME, NT, 2000, XP x86/x64, 2003 x86/x64, Vista x86/x64, 2008 x86/x64, Embedded CE 5.0/6.0, XP Embedded, Linux Real TTY driver (for 2.4.x, 2.6.x), Fixed TTY driver (for 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)
Configuration Options	Web Console, Serial Console, Telnet Console, Windows Utility

• Physical Characteristics
Enclosure	SECC sheet metal (1 mm), providing IP30 protection
Weight	720 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	-20 to 85°C (-4 to 185°F)