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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">CESG Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Following up from the spring 2016 CESG meeting notes, I have the action “EB to distribute TN”. The TN referred to here is the Functional Resources Model which
is now one of the key “pillars” for standards being developed in the CSS Area. It can be viewed as the next logical layer down from the Cross Support Architecture documents. You may recall at the last CESG meeting I noted that it will be good to have CESG
review and comment on this. As this can also be viewed as the abstract “wiring” diagram for cross-support component at the link level, I believe it will be of particular interest for the SLS Area as we believe these are the experts that will really know if
the wiring makes sense. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Here are some notes/background to help guide you in reading through this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">a)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In general, the Cross Support Services Area has the job of developing recommended standards to facilitate cross support between agencies between the
various agency ground station networks and the various spacecraft. This means that we are faced with the problem of identifying the various components that render the various cross support services without discussing these in terms of specific equipment implementation
details. The functional resource model represents our current best understanding of the various service resources required in the cross support setting but at an abstract level.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">b)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In general, the cross support services area recommendations have to allow for extensibility. For example, as optical communication becomes more and
more of a reality, presumably we do not want to have the cross support services recommendations being redeveloped from scratch to address the management of optical space links versus the more traditional radio frequency space links. The functional resource
model supports such an extensible capability.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">c)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Please ignore the editorial comments in the document – these are essentially status notes from the technical note author and are indications for the
work that we in the cross support services area need to do on the functional resource model. However the main body of the technical note is sufficiently intact that I believe it is more beneficial to take a look now rather than waiting for the updates to be
performed.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><span style="mso-list:Ignore">d)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">If you are pressed for time and/or to gain some basic familiarity my suggestion is to look at figures/diagrams 2-1 through 2-4.
<o:p></o:p></span></p>
<p class="MsoListParagraph"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I realize this is a rather substantial technical note (it is sufficiently substantial that it may one day be put on a normative document track), but any comments
you may have by the time of the Rome meetings will be appreciated. Given the non-trivial nature of this I think we can also consider more discussions at the San Antonio meetings as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">-Erik<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0in"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> cesg-bounces@mailman.ccsds.org [mailto:cesg-bounces@mailman.ccsds.org]
<b>On Behalf Of </b>Nestor.Peccia@esa.int<br>
<b>Sent:</b> Monday, April 11, 2016 4:15 PM<br>
<b>To:</b> CESG -- CCSDS-Engineering SteeringGroup(cesg@mailman.ccsds.org)(cesg@mailman.ccsds.org) <cesg@mailman.ccsds.org><br>
<b>Subject:</b> [CESG] CESG Meeting on 11th April 2016 : Draft Motes<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Dear all,</span>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">draft notes attached</span>
<br>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Comments by Friday 15th April 2016 cob</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">ciao</span> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">nestor</span><o:p></o:p></p>
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