Glossary
15
Models 2211 & 2232 Getting Started Guide
1 • Overview
The device servers provides a management console, by using Telnet and the serial console port, which is under
password protection. The device servers also provide a management function with the use of the EtherBITS
Manager Software Utility.
The device servers accommodate the requirements of the Retail POS, Security, Automation and
Medical marketplaces.
Note
This manual assumes user knowledge of Internetworking protocols and
serial communications
Glossary
This section defines commonly used terms in this manual. These terms are related to Internetworking, and
defined in regards to their use with device server.
MAC address
On a local area network or other network, the MAC (Media Access Control) address is the computer’s unique
hardware number. (On an Ethernet LAN, it is the same as the Ethernet address.)
It is a unique 12-digit hardware number, which is composed of 6-digit OUI (Organization Unique Identifier)
number and 6-digit hardware identifier number. The MAC address can be found on the bottom of the
original package.
Host
A user’s computer connected to the network
Internet protocol specifications define host as any computer that has full two-way access to other computers on
the Internet. A host will have a specific local or host number that, together with the network number, forms its
unique IP address.
Session
A series of interactions between two communication end points that occur during the span of a
single connection
Typically, one end point requests a connection with another specified end point. If the specified end point
replies, and agrees to the connection, the end points then take turns exchanging commands and data (talking to
each other). The session begins when the connection is established at both ends and terminates when the con-
nection is ended.
Client/Server
Client/server describes the relationship between two computer programs in which one program, the client,
makes a service request from another program, the server, which fulfills the request.
A server is a computer program that provides services to other computer programs on one or many computers.
The client is the requesting program or user in a client/server relationship. For example, the user of a Web
browser is effectively making client requests for pages from servers all over the Web. The browser itself is a cli-
ent in its relationship with the computer that is getting and returning the requested HTML file. The computer
handling the request and sending back the HTML file is a server.
