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NE-4120S
10/100M Ethernet Network Enabler for RS-232 Devices

Overview

NE-4120S offers a complete Ethernet connection solution (TCP Server, TCP Client, UDP) to network-enable your serial devices—only 57 x 40 mm, or less than half the size of your credit card—you can easily integrate NE-4110S into your serial device to make the device 10/100M Ethernet-ready.

Industrial-proven, built-in TCP/IP stack

NE-4120S’s industrial-proven, built-in TCP/IP stack makes it easy for your R&D engineers to network-enable your serial device since they won’t need to put a lot of effort into TCP/IP programming. The 10/100M Ethernet auto-sensing interface lets you enjoy the higher 100M speed when available. In addition, NE-4120S's 4 GPIO pins provide ample design flexibility, giving you the freedom to develop the features your customers need. The NE-4120S 5V design is better suited for today's equipment, and R&D engineers can spend less effort implementing the power circuit.

User-friendly configuration options
	Configuration is done with a user-friendly Windows utility, Web browser, telnet console, or serial console. In addition, a Windows-based NECI (Network Enabler Configuration Interface) Library is available to help you develop your own Windows utilities.

Shorter time to market
	The ready to go design of NE-4120S allows you to get your legacy serial device Ethernet-ready easily without modifying the circuit, and get your product to market in no time.

Programmable version meets your customization needs

A C-programmable version is also available upon request (please call for availability) for customized applications such as protocol conversion and front-end data processing. The NE-4120S Software Development Kit (SDK) includes a Turbo C compiler and more than 100 Application Program Interface (API) functions for socket command and serial port control, and self-explanatory example programs are available to reduce your software developing time.

An NE-4120S-ST Starter Kit that includes everything you need to develop your application is also available. The Starter Kit includes an evaluation board, SDK, documentation, cables, and accessories.

Click here to view the NE-4120S System Block Diagram

Features
	RS-232 to 10/100M auto-sensing Ethernet mini card for embedded device networking Compact size (57 x 40 mm) Ready-to-use TCP/IP firmware for fast integration TCP Server, TCP Client, UDP, Real COM driver operation modes Easy configuration with Web browser, serial console, or Windows utility Low power consumption (1.5W) Dedicated 4 GPIO for user's configuration Programmable version available

Much smaller than a credit card >>

Applications
	Industrial Automation (PLC, metering devices) Medical/Healthcare (ECG, ultrasonic monitoring, blood testing devices) Building Automation (HVAC, fire alarms) Security/Surveillance (card readers, biometric identification devices) Information Appliances (UPS monitor modules)

Specifications

LAN

Ethernet	10/100 Mbps auto-sensing
Protection	Built-in transformer with 1.5 KV magnetic isolation
Pins	ETx+, ETx-, RTx+, RTx-

Serial

Interface	RS-232 x 1, TTL x 1
Signals	TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND (RS-232)

Serial Communication Parameters

Parity	None, Even, Odd, Mark, Space
Data Bits	5, 6, 7, 8
Stop Bits	1, 2
Flow Control	RTS/CTS, XON/XOFF
Speed	50 bps to 115.2 Kbps

GPIO

GPIO	Programmable x 4, PIO

Software Features

Protocols	ICMP, ARP, IP, TCP, UDP, DHCP, Telnet, HTTP, SNMP, SMTP
Operation Modes	TCP Server, TCP Client, UDP, Real COM
Utilities	Administration utility for Windows 95/98/ME/NT/2000/XP
Management	Web browser, serial console, Telnet console, or Windows utility
Configuration Interface	NECI library for developing your own utility