John:
You state: "We saw these as superior to using a PC with an emulator
for reliability reasons"
What are your reasons for thinking that X-Terminals are superior?
It has been my experience; being a Foxboro Field Service Engineer
and speaking on my own behalf (this is not Foxboro's official response); I
think that X-terminals are a pain in the butt. They always add over head to
software upgrade jobs. I don't see the difference between an X-Terminal and
a PC with emulator software.
I would prefer if my customers just bought a PC (cost the same as a
Xterminal)and put Windows/ExCeed on it. This lets you use the PC for other
Windows apps (though that may not be desirable) Alternatively you could load
the PC (or even buy an old Sparc5, Your spare parts WP/AW or other SUN
WorkStation) up with Solaris Operating System which has X-Windows part of
the OS. Note/ that Solaris is available for both Sparc and Intel processors.
All the software using off-platform method would not need to be upgraded on
software updates (ie/ dayZero) because the remote stations boot up with
their own hard drive. Less time to install and trouble-shoot your AW/WP.
Less of a burden on your AW/WP as they don't have to boot-host Xterminals.
The only way I would suggest Xterminal is if you were placing the box in an
environment that had high vibration or very dirty location. (ie/ any type of
environment that could shorten the life of a hard drive)
Peter
----------
From: John Katz
Sent: Thursday, March 29, 2001 6:13 PM
To: [EMAIL PROTECTED]
Subject: X-Terminals
Hi all,
We've been using NCD ExploraPro and later the NCD Explora 400 units
as
x-terminals on our I/A system. NCD has advised that they are no
longer
manufacturing the Explora line, so I've got to find a replacement.
We are using these NCD Exploras as x-terminals because of their
small size,
no moving parts and high mtbf rating -- excellent performance in
grungy
environments. NCDware software made installing these almost as easy
as
plug-n-play. We saw these as superior to using a PC with an
emulator for
reliability reasons and superior to extra WPs for more obvious ($)
reasons.
I'd welcome any info on what others are using for x-terminals or
other
alternatives.
Regards,
John Katz
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