User's Manual

User manual Version 1.0
ABLELink Serial-Ethernet Server
GW51W-MAXI
Copyright © 2003 Atop Technologies, Inc.
All rights reserved. Designed in Taiwan.
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4.5 Virtual COM Mode
Virtual COM driver mode for windows converts COM data to LAN data to control the RS-232C port on a
GW51W-MAXI via the LAN. By creating Virtual COM ports on the PC, Atop Virtual COM redirects the
communications from the Virtual COM ports to an IP address and port number on a GW51W-MAXI that
connects the serial line device to the network. The following figure is Atop Virtual COM connection
diagram.
Physical COM1
Physical COM2
COM3
(Virtual COM Port)
COM4
(Virtual COM Port)
COM5
(Virtual COM Port)
COM6
(Virtual COM Port)
OS Driver Level
COM256
(Virtual COM Port)
PC
:
:
HUB
TCP/IP Network
Serial Line
Serial Device 1
Serial Line
Serial Device 2
Serial Line
Serial Device 3
Serial Line
Serial Device 4
GW51W-MAXI
4.5.1 Setup of a Virtual COM driver
Correspondence OS
Atop Virtual COM driver can be used on Windows XP, Windows 2000, Windows NT 4.0 SP5 or later,
Windows Me or Windows 98, Microsoft NT/2000 Terminal Server.
Cautions on Use
Atop Virtual COM supports firmware AP v3.4 and above of ABLELink Serial-Ethernet Servers.
Limitation
Atop Virtual COM driver provides user to select two COM ports as Virtual COM ports in a monitoring
PC. User can select them from a list of COM ports, which is from COM1 up to COM256.
Installation
Make sure you have turned off all anti-virus software before beginning the installation. Run
AtopVcom.exe program included in the CD to install Atop Virtual COM for your operating system.
In the end of the installation, please select one or two COM ports to become the Virtual COM ports.