RE: Backpan or backplane?

["Bill Darnall" <billdarnall -at- writingandtraining -dot- com>]

Here are two links to documents that use the word "backpan.

http://www.tescocontrols.com/pdf/rvss.pdf

http://city-council.cityofdavis.org/Media/Default/Documents/PDF/CityCouncil/
CouncilMeetings/Agendas/20081118/Packet/03B-SCADA-System-Upgrade.pdf


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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.

   > Chris

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
and
>    alleviate the need to install discrete interposing devices to the
> enclosure
>    *backpan*.
>
>
> 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
> backplane?
>
> 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
use
>> of "backpan" vs. "backplane." I think it's the latter, and can find
online
>> 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
>> and
>>     alleviate the need to install discrete interposing devices to the
>> enclosure
>>     *backpan*.
>>
>>     - <Model number> Card Chassis
>>     <Company name> 5 slot card chassis, including *backplane*:   1lb
>> 3.5oz.
>>     ( 552g )
>>     <Company name>  12 slot card chassis, including *backplane*:
>>
>>
>> What's your take?
>>
>> Thanks
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