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IOLAN Device Server User’s Guide, Version 1.0 17
Introduction Chapter 1
1
About the IOLAN Device Server
The Device Server is an ethernet communications/terminal server that allows serial devices to be
connected directly to LANs. The Device Server can connect to a wide range of devices including:
z Terminals for multi-user UNIX systems
z Data acquisition equipment (manufacturing, laboratory, scanners, etc.)
z Retail point-of-sale equipment (bar coding, registers, etc.)
z PCs using terminal emulation
z Modems for remote access and Internet access
z ISDN adapters for branch remote access and Internet access
z All types of serial printers
The performance and flexibility of the Device Server allows you to use a wide range of high speed
devices in complex application environments. The Device Server will work in any server
environment running TCP/UDP/IP.
Device Server Features
The Device Server is a communications server with 1 port for making serial network connections. It
attaches to your TCP/IP network and allows serial devices such as modems, terminals, or printers to
access the LAN.
Hardware
The Device Server hardware features include:
z Auto sensing 10/100 RJ45 interface.
z Universal, software-selectable EAI-232/422/485 interface.
z Full modem control using DTR, DSR, CTS, RTS and DCD.
z Tx and Rx activity indicators.
z External AC power supply or power over serial.
z LEDs for diagnostic testing.
z Self-test on power-up.
z Reset switch.