User Guide

Overview AXIS 2490 User’s Manual
4
Overview
The old way of installing serial devices was by connecting them to PCs, either directly with
serial cables or by using modems. This often required a lot of PCs, long cables, etc.
The AXIS 2490 Serial Server makes it possible to connect serial devices directly to a
network without using a PC, thus providing applications with convenient remote access to
these resources via HTTP and TCP/IP. The illustration below shows the following physical
setups:
❶ to ❸ The PC application uses a network socket or a COM-Port redirector to
communicate.
❷ to ❹ PC to Serial Server to network. This can be used if you have an old application that
uses the serial port and when you can’t use a COM-port redirector.
❸ to ❹ Two serial devices connected to each other via a "virtual extension cable".
For more information, please refer to The AXIS 2490 in Your Application, on page 9.
❷
❶
❸
❹