Abstract: E? Iink is a cheap, hassle-free and tight serial Ethernet program module. With the high advancement involving Intemet, folks might be in several spots with the Internet to swap information. Various smart tools in addition to equipment really should have your multilevel function, throughout the E? Link records tranny device, simply just have got a serial interface that will permit single handed access on the system of recent apparatus no for a longer time needed PC + greeting card + device interface card, special simply by E? IJink can without difficulty entry the Ethernet. Use involving low-cost "E? Link circle data transmission device", while using Internet for you to exchange the actual bus, and so an original Fieldbus handed out control procedure easily changed into Ethernet-based allocated control system. Keywords: Ethernet: E? Link: Serial Interface: Network: Data tranny system a single Introduction With the recognition connected with Internet as well as the super fast growth involving business automation. Network possesses in-depth homes, offices, factories, along with automation plus control. E? Link high-speed multi-level relationship control includes the microprocessor along with the Ethernet interface, serial gadget by which that Internet can be uncomplicated for you to implement into your handle program to talk about data resources, it can be connected Ethernet and serial gadgets bridge. Ethernet Ethernet interface circuit to do the actual level lOBaseT Communicate In this high-speed microprocessor C51 dialect authored to the inner TCP / IP protocol and various (RS-232, RS-485, CAN, etc.) Conversion Agreement. Therefore, throughout the E? Link Internet serial systems will be simple, isn't going to involve complex multilevel protocols, merely opportunities with E? Link for data exchange. 2 E? Link data transmitter Introduction 2.1 Features E? Link data transfer system is often a micro-Internet Access Module. Can be given a way serial machine or maybe different user's clever system access Internet, while using module's internal TCP / IP network protocol along with 10Base? T community program for connecting that will Ethernet, serial units effortlessly gain networking. E? Link information transmitter _ together with smaller dimension and decreased energy consumption, inexpensive plus relieve to be able to use. Serial devices could be self-operating assert along with functioning ranges for instance TCP, and also UDP data to offer packets to manipulate nobody can achieve real-time transmission with information. This method features the next characteristics: (1) No mileage as well as countrywide boundaries, so long seeing that Ethernet can certainly communicate; (2) the popular us going for network resources. No installing involving domain bus; (3) real-time transmission, substantial transfer rate. The serial rates approximately 115.2kb / s. E? Link files transmitter can be used inside connection s ystems, factory automation systems, banking and insurance systems, handy remote control associated with sent out devices, huge retail systems, building direction models and wise intelligent security plus Fire Linkage system. 2.2 Main technical listing MC [I to 16-bit AVR MEGA high-speed processor, crystal clear Oscillator The frequency is actually 14.745 6 MHz, this external recollection capacity connected with 32KB, the actual interior FLASH memory capacity: 128 KB. Can present 16MI / vertisements connected with calculating processing power. Support agreement: ARP, IP, UDP, TCP, IC MP, DHCP in addition to DNS. Network Interface: RJ45 (10BASE a T) Ethernet interface. Interface Type: RS232, RS422,. RS485, CAN bus. Serial rate: 300 b / s? 115 200 b / s. Maximum move rate: 300KB / s. Product Dimensions: 8.0 emXlO. O cm as well as less. Power supply: AC as well as DC power supply. Software Support: Windows XP. Windows 2000. WindowsNT, Windows95/98/ME. Unix Ware SVR4-2, UnixWare 7 SVR5, SCO Open Server, SCOUNIX, Linuxfixed tty for 2.0. x, 2.2. x in addition to I, inux serious tty for2. O-36, 2.2. x, 2.4. x (all owners come in the method TCP / IP Networks). Development mother board with 32 Switch Volume regarding two-way I / O handle and also eight 10-bit A / D converter. Development environment: when using the no cost AVR? GCCC language programming. Users will not should take into account to order pricey AVR-specific C terms compiler (such seeing that IARFORAVR, ImageCraftICCforAVR and also CodeVisonC, etc.), plus the development regarding the actual program is definitely FREE? WARE, might be fully in accordance with what's needed in the program of cutting, high effectiveness development.