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Activexpert send messages from one server across LAN to another server that has Wavecom SMS modem connected to its Com1

Posted on 2013-06-06
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Last Modified: 2013-06-16
Refer to the 2 attachments that show the top view &
bottom view of an SMS modem that currently connects
to our physical management server's DB9 serial port.

It has 1 serial cable to a DB9 port on our mgmt server
& an RJ11 phone line into it.

We plan to virtualize this mgmt server so that Activexpert
move into VM while we'll connect up this modem to another
physical server.

Pls give step by step instruction on how I can route
Activexpert messages to another physical server that
this modem is connected to
wavecomodem1.jpg
wavecomodem2.jpg
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Question by:sunhux
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by:kode99
kode99 earned 500 total points
ID: 39228166
Two fairly easy routes to go,

First would be to use a serial to ethernet program that lets you share a com port from one system to another over the network.  The first system has a virtual com port setup that talks to the shared port on the 2nd server where you have the SMS unit connected.

Here's an example,
http://www.eltima.com/products/serial-over-ethernet/

The second route is to buy a serial device server.  These are small units that let you put serial devices on your network without the need for a computer to attach the serial device to.  It works similarly in that again you have a virtual com port on first system that talks to the device server which has the sms module connected to it.

Here's an example unit,
http://www.perle.com/products/IOLAN-DS-Terminal-Server.shtml

There are a number of different manufacturer's of serial device servers,  normally all required software/drivers comes with a device server.  The linked perle unit is around $160.  I've used some Perle units in the past and their tech support was very helpful.

The first option is a bit cheaper (and there are a few options out there as well - even likely a open source/no cost GPL software route).  The linked software is $99.
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Author Comment

by:sunhux
ID: 39229759
Could you suggest a few opensource freeware for the 1st option
(that could run on Win 2003 & Win 2008 R2 ) ?
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by:
kode99 earned 500 total points
ID: 39230036
Take a look at com0com its a current project,

http://com0com.sourceforge.net/

and this how to pdf shows how to use it to connect through tcp networking,

http://com0com.sourceforge.net/doc/UsingCom0com.pdf

We tested com0com a while back and it did work well but did not have all the features we needed for the application.

Because the serial stuff is generally more commercial/industrial these days the cost for any commercial software to work with it is fairly expensive.  The Etima software has a nice interface and works well,  their price is for 2 computers,  some other outfits are charging that per computer.
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