Re: Ethernet serial servers... Re: USB to serial

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Re: Ethernet serial servers... Re: USB to serial

Lu Romero - W4LT
I will also vouch for the quality and reliability of
Lantronix Serial servers.  Solid but expensive from a hobby
budget point of view.  But if you want the best, you cant go
wrong with them.

In a former job, I designed a system that ran an entire
complement of broadcast master control devices remotely from
a central facility in Miami to television station master
control rooms in Briminham Alabama and Raleigh North
Carolina.  My employer's "experts"  told me it couldnt be
done, but the sales manager let me try (He was a greedy
soul, God bless him!).  It worked perfectly for over a year,
with no real latency (I still have the latency measurements
in a PowerPoint somewhere) and extremely reliably as well.
A caveat:  The IP remote connectivity ran over a rather
large, dedicated Fiber WAN and not on the public internet.

Larry, N8LP, uses these for his remote station operation
package design.  I think that the new "GlenTek" radio remote
controller product is a customized Lantronix web configured
unit, although I am not completely sure (the config screens
sure look familiar!).

-lu-W4LT-


 


Date: Tue, 16 Mar 2010 08:19:01 -0700 (PDT)
From: Lee Buller <[hidden email]>
Subject: Re: [Elecraft] Ethernet serial servers... Re:  USB
to serial
    angst
To: Elecraft Reflector <[hidden email]>
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=us-ascii


I have had experience with Lantronix products and the
Ethernet to
Serial device.  Lantronix does know both areas...serial and
ethernet.  I used these
devices connecting Laboratory devices (chemistry - Blood
Analyzers, and a host of other critical hospital laboratory
devices) to
the network which were them access via the software running
on the
server.  The program could read and write to the medical
equipment very
well and worked in critical applications all through an IP
address on the
network.  

These were critical systems....information that were
sent to Docs to treat patients.  It went perfectly.  I would
think that
these devices would be perfect to controlling a rig on a
network.  In
the medical field, we were not worried about timing latency
because it was not
"super-real-time" as it would be in sending Code or
Voice.  We were sending chunks of data.  So, your mileage
may vary.  I
do have a lot of confidence in the Lantronix products and
customer
support was superb.  

Lee - K0WA
 Ham Radio Operators:  Kansas QSO Party is August 28-29,
2010.  See
http://www.ksqsoparty.org for details

In our day and age it seems that Common Sense is in short
supply.  If you don't have
any Common Sense - get some Common Sense and use it.  If you
can't find any Common
Sense, ask for help from somebody who has some Common Sense.
 Is Common Sense
divine?

Common Sense is the image of the Creator expressing revealed
truth in my mind. -  J.
Wolf

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Re: Ethernet serial servers... Re: USB to serial

N8LP
Yes, I have been using the Lantronix servers for remote access of my rig, rotor, relays, etc. for years. I can access my K3 from the shack or family room, or even the shop where I do software development for LP-PAN. I wrote an article for QST about this about 7 years ago. I find them very reliable and handy. They even have wireless versions available now.

Another interesting product is the ZigBee based wireless serial ports that Green Heron markets. We had a wireless link between their booth and the TelePost booth at Dayton last year, and they were able to remotely control and monitor an LP-100A at our booth with no problem.  

73,
Larry N8LP