Re: Monitoring RS-232

From: Brannon Wilson Smith (azrael@wam.umd.edu)
Date: 07/27/02 

Date: Fri, 26 Jul 2002 20:42:04 -0400 (EDT)
From: Brannon Wilson Smith <azrael@wam.umd.edu>
To: Ferry van Steen <ferry.van.steen@InfoPart.nl>

Why don't you splice the wire and run a dupe of transmissions to a
passively listening computer? Of course, this would be one to one, so you
probably wouldn't like it (and you might need an amplifier, now that I
think about it). How much data are we talking? I can think of custom
"black box" solutions, but they would be cost-prohibitive if you're
cataloguing tons of data.

--Brannon

On Thu, 25 Jul 2002, Ferry van Steen wrote:

> Hey there,
>
> I'm looking for a device that can monitor RS-232 without interrupting the
> existing communications. To be exact, our customer has some cash registers
> connected to PC's over RS-232. I know there are software solutions to
> monitor the RS-232, but the problem is the cash software already has the COM
> port open so it won't run. We need to monitor it so we can check against
> cash register fraude (i.e. employees stealing money by selling items to
> customers and then back up the sale). So what we're looking for is some sort
> of device that can be hung between the PC and the cash register and that
> sort of dupes the traffic to either a second RS-232 or on to a LAN
> connection (100baseT). Ofcourse this device shouldn't allow the second
> RS-232/LAN connection to interfear with the data between cash register and
> PC. Been searching on the web for a while now and e-mailed some companies
> that produce RS-232 stuff I've never heard of but I haven't been succesful
> in finding anything that does what we want and I was hoping some of you know
> where we can get it.
>
> TIA
>
> Kind regards,
>
> Ferry van Steen
> InfoPart Automatisering B.V.
> Beeksestraat 24
> 4841 GC Prinsenbeek
> The Netherlands
> Phone: +31 (0)76 - 5 44 04 11
> Fax: +31 (0)76 - 5 41 83 51
> Mobile: +31 (0)6 - 28 46 47 45
> E-Mail (business): ferry.van.steen@infopart.nl
> E-Mail (private): freaky@bananateam.nl
> MSN Messenger: freaky@freaky2000.dyndns.org
> ICQ (UIN (seldom used)): 191458
>
>
>
>

Relevant Pages

  • RE : Monitoring RS-232
    ... source to multiple display pannel. ... monitor the RS-232, but the problem is the cash software already has the COM ... cash register fraude (i.e. employees stealing money by selling items to ... connection. ...
    (Security-Basics)
  • RE : Monitoring RS-232
    ... monitor the RS-232, but the problem is the cash software already has the COM ... cash register fraude (i.e. employees stealing money by selling items to ... sort of dupes the traffic to either a second RS-232 or on to a LAN ... connection. ...
    (Security-Basics)
  • RE: Monitoring RS-232
    ... the RD pin on the duplicating receiving port. ... monitor the RS-232, but the problem is the cash software already has the COM ... cash register fraude (i.e. employees stealing money by selling items to ... connection. ...
    (Security-Basics)
  • RE: Monitoring RS-232
    ... I'm looking for a device that can monitor RS-232 without interrupting ... we can check against cash register fraude (i.e. employees stealing money ... the cash register and that sort of dupes the traffic to either a second ... RS-232 or on to a LAN connection. ...
    (Security-Basics)
  • Re: Monitoring RS-232
    ... >monitor the RS-232, but the problem is the cash software already has the COM ... >cash register fraude (i.e. employees stealing money by selling items to ... >sort of dupes the traffic to either a second RS-232 or on to a LAN ... >connection. ...
    (Security-Basics)