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From: techwr-l-bounces+billdarnall=writingandtraining -dot- com -at- lists -dot- techwr-l -dot- com
[mailto:techwr-l-bounces+billdarnall=writingandtraining -dot- com -at- lists -dot- techwr-l -dot- c
om] On Behalf Of Chris Morton
Sent: Sunday, March 22, 2015 1:24 PM
To: techwr-l -at- lists -dot- techwr-l -dot- com
Subject: Re: Backpan or backplane?
This might be, Rick, but I cannot find a definition for "backpan" anywhere.
"Backplane" makes much more sense to me and, from what I gather, others in
the know. But I'm open to being proven wrong, for I don't want to
(politely) challenge the engineer without having first done my homework.
On Sun, Mar 22, 2015 at 1:19 PM, Rick Stone <rstone75 -at- kc -dot- rr -dot- com> wrote:
> In looking at the context here:
> - These terminal boards provide excellent lightning/surge protection
> alleviate the need to install discrete interposing devices to the
> I'm finding myself wondering if "backpan" is something still relevant, but
> completely different than a backplane? From what I'm seeing, perhaps a
> backpan would be another device that would be installed behind the
> Just pondering out loud... Rick :)
> On 3/22/2015 12:14 PM, Chris Morton wrote:
>> I'm working on a user manual for a SCADA-driven programmable logic
>> controller (PLC). The unit accepts add-on cards, much like a desktop
>> personal computer.
>> Referring to the contextual samples below, my question pertains to the
>> of "backpan" vs. "backplane." I think it's the latter, and can find
>> support for this. The engineer who designed this unit, and its
>> predecessors, thinks it's the former. I can find no definition for this,
>> nor online support.
>> - These terminal boards provide excellent lightning/surge protection
>> alleviate the need to install discrete interposing devices to the
>> - <Model number> Card Chassis
>> <Company name> 5 slot card chassis, including *backplane*: 1lb
>> ( 552g )
>> <Company name> 12 slot card chassis, including *backplane*:
>> What's your take?
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