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<div class=Section1>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Hi Ira,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>At the last
concall we had discussed making a point of the distinction between Power State
and Operational State. Certainly, power consumption will be a function of both
Power State and Operational State. And there will be some
restriction on allowable Operational State depending upon power state. It may
not be possible to define a clear or device-independent relationship between
the two types of states.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>As I reviewed the
power states in the MIB </span><span style='font-size:14.0pt;color:#1F497D'>(</span><span
style='font-size:14.0pt'>PowPowerStateTC), some questions come up on what states
are reportable and what are selectable, as well as what may be considered not power
states (although I understand that these states are derived from other
standards)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoListParagraph style='margin-left:.5in;mso-list:l2 level1 lfo5'><![if !supportLists]><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif"'><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I was assuming that any of the listed states could be a response,
but that only what have been elsewhere identified as “Stable”
states could be used in a request. This followed from an understanding that
the non-stable states were transition power states, and one would typically request
the desired end state, not a transition state. But one may want to
request how the desired end state is reached, so that requesting “off”,“offGraceful”,
“offHard”, or “offHardGraceful” would reasonable be desirable
different requests. Is it your understanding that any of the listed power
states could be used in a request (although I would wonder about resetNMI) ? </span><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:.5in;mso-list:l2 level1 lfo5'><![if !supportLists]><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif"'><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If this is so, then can the reset states be requested? One
may consider that the various resets are operational rather than power transition
states. That is, although there may be an effect upon power consumption by a
reset as there is when going from Idle to Busy, a reset would typically occur
for operational rather than for power purposes. Is the Power MIB to also expand
the capability for what are really operational resets?</span><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:.5in;mso-list:l2 level1 lfo5'><![if !supportLists]><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif"'><span
style='mso-list:Ignore'>3.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If, as it appears, the Power states other that the six “stable”
states are transitory but not transition states, what should be reported when the
device is in transition between two stable states? Or are we not concerned
with what would normally be a relatively short duration transition state?<o:p></o:p></span></p>
<p class=MsoListParagraph style='margin-left:.5in;mso-list:l2 level1 lfo5'><![if !supportLists]><span
style='font-size:14.0pt;font-family:"Calibri","sans-serif"'><span
style='mso-list:Ignore'>4.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The offHard state is defined as “mechanical unplug”,
which suggests that it cannot be either reported nor requested, rendering it
useless and eliminating the availability of a not-powered state (since “off”
is “flea power”) . I expect that offHard really means unpowered,
whether the disconnect is by pulling a plug, opening relay contacts or shutting
off a Triac. If so suggest that unpowered is preferable to mechanical
unplug. Similarly, associating the “off” state with “flea
power” is not very informative, particularly for non-English speakers. Is
the implication that enough of the unit powered so that a remote command (from
some source) can be accepted? (one would assume that, if the agent is
sufficiently powered to response to a status request, it is sufficiently
powered to accept a state-change request). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Again, I understand
that these states are inherited and should be supported for consistency.
However, I think that more explanation of how they apply to hardcopy equipment
may be appropriate to encourage consistency in implementation. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:14.0pt;color:#1F497D'>Bill Wagner<o:p></o:p></span></p>
</div>
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