Ethernet Adaptor 01-103
Sparr Electronics Ltd., Bangalore
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Introduction
1.1
About Ethernet Adaptor (EAD01-103) - Overview
EAD01-103 is a Device that converts RS-232 serial data into TCP/IP protocol. It enables
remote gauging, managing and control of a Serial Device through the network based on
Ethernet and TCP/IP by connecting to the existing equipment with RS-232 serial
interface. In other words, EAD is a protocol converter that transmits the data sent by
Serial equipment as TCP/IP data type and converts back the TCP/IP data received
through the network into serial data to transmit back to the equipment. EAD01-103 also
supports UDP Protocol for Broadcast kind of application.
The EAD01-103 allows you to network-enable a variety of serial devices that were not
originally designed to be networked. This capability brings the advantages of remote
management and data accessibility to thousands of serial devices over the network.
The EAD01-103 is the low cost Serial RS 232 to Ethernet LAN 10/100 Mbps
connectivity system using the TCP/IP protocol and based on a cold fire high speed 32-bit
microprocessor. It is having built in web server. The EAD01-103 supports RS 232 serial
communication allowing virtually any asynchronous serial connectivity device to be
accessed over a network. Some models do Support RS 485 and RS 422 connectivity as
add-on feature.
As for the Internet connectivity, the EAD01-103 supports open network protocols such as
TCP/IP allowing Serial Devices to be accessed over broadband network or conventional
LAN (Local Area Network) environment.
The EAD01-103 provides the management console using Web Browser, Telnet and Serial
console port under the password protection support. The EAD was designed to
accommodate the unique requirements of the Retail POS, Security, Automation and
Medical marketplaces.
Parts of this manual assume the knowledge on concepts of the Internetworking protocols
and serial communications. If you are not familiar with these concepts, please refer to the
standards or the documentation on each subject.
1.2. Network Protocol
The EAD01-103 uses IP protocol for network communications. For network connections
to the Serial port TCP, UDP, ICMP, MAC, DHCP and Telnet protocols are used.
1.2.1. Ethernet Address or MAC Address
The Ethernet adaptors have what is known as Hardware address or MAC address. It has
its own addressing scheme based on a unique six-byte address. This is generally called
Media Access and Control (MAC) address.
One example of Ethernet Address is given below:
00-17-85-01-36-0C
or
00:17:85:01:36:0C
