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    <title>topic Power, BTU, &amp; MTBF Information for the SecureStacks in FAQs</title>
    <link>https://community.extremenetworks.com/t5/faqs/power-btu-mtbf-information-for-the-securestacks/m-p/46877#M423</link>
    <description>Article ID: 5418 &lt;BR /&gt;
&lt;BR /&gt;
&lt;B&gt;Products&lt;/B&gt;&lt;BR /&gt;
SecureStack A2&lt;BR /&gt;
SecureStack B2&lt;BR /&gt;
SecureStack B3&lt;BR /&gt;
SecureStack C2&lt;BR /&gt;
SecureStack C3 &lt;BR /&gt;
&lt;BR /&gt;
&lt;B&gt;Solution&lt;/B&gt;&lt;BR /&gt;
&lt;U&gt;SecureStack A2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
A2H123-24   24 10/100 &amp;amp; 2 100FX  .29    56.54    .559     31.60     108    121,739&lt;BR /&gt;
A2H124-24   24 Port 10/100       .27    50.49    .570     28.70      98    124,279&lt;BR /&gt;
A2H124-24P  24 Port 10/100 PoE  4.04   444.95    .998    444.00     166    201,377&lt;BR /&gt;
A2H124-24FX 24 Port 100FX        .54   107.47    .549     59.00     201     53,501&lt;BR /&gt;
A2H124-48   48 Port 10/100       .46    89.76    .554     49.70     170    115,219&lt;BR /&gt;
A2H124-48P  48 Port 10/100 PoE  4.20   464.20    .996    462.00     284    169,150&lt;BR /&gt;
A2H254-16    8 FX + 8 TX Ports   .33    61.60    .569     35.05     120    105,790&lt;BR /&gt;
&lt;U&gt;SecureStack B2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
B2G124-24   24 Port Gig          .41    80.63    .549     44.26     151    142,600&lt;BR /&gt;
B2G124-48   48 Port Gig         1.18   129.03   1.000    129.50     442    105,191&lt;BR /&gt;
B2G124-48P  48 Port Gig PoE     5.31   596.20    .978    583.10     550     80,331&lt;BR /&gt;
B2H124-48   48 Port 10/100       .72    79.24    .997     79.00     270    138,741&lt;BR /&gt;
B2H124-48P  48 Port 10/100 PoE  4.87   617.87    .952    534.70     384    115,872&lt;BR /&gt;
&lt;U&gt;SecureStack B3&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
B3G124-24   24 Port Gig          .58    63.47    .997     63.30     216    162,308&lt;BR /&gt;
B3G124-24P  24 Port Gig PoE     4.38   481.00   1.000    481.00     284    115,324&lt;BR /&gt;
B3G124-48   48 Port Gig         1.19   132.44    .989    131.00     447    110,509&lt;BR /&gt;
B3G124-48P  48 Port Gig PoE     5.16   579.70    .979    567.50     561     81,176&lt;BR /&gt;
&lt;U&gt;SecureStack C2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C2G124-24   24 Port Gig          .41    80.63    .549     44.26     151    142,600&lt;BR /&gt;
C2G124-48   48 Port Gig         1.18   129.03   1.000    129.50     442    105,191&lt;BR /&gt;
C2G124-48P  48 Port Gig PoE     5.31   596.20    .978    583.10     550     80,331&lt;BR /&gt;
C2G134-24P  24 Gig RJ21 PoE     4.65   536.80    .952    511.27     304    145,462&lt;BR /&gt;
C2G170-24   24 SFP/MGBIC slots   .27    51.70    .569     29.42     100    157,413&lt;BR /&gt;
C2H124-48   48 Port 10/100       .72    75.13    .997     79.00     270    138,741&lt;BR /&gt;
C2H124-48P  48 Port 10/100 PoE  4.87   617.87    .952    534.70     384    115,872&lt;BR /&gt;
C2K122-24   24 Port Gig + 10G    .83    91.96    .989     90.95     310    147,132&lt;BR /&gt;
&lt;U&gt;SecureStack C3&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C3G124-24   24 Port Gig          .58    63.50    .997     63.30     216    160,505&lt;BR /&gt;
C3G124-24P  24 Port Gig PoE     4.38   481.00   1.000    481.00     284    114,280&lt;BR /&gt;
C3G124-48   48 Port Gig         1.20   132.46    .989    131.00     447    106,916&lt;BR /&gt;
C3G124-48P  48 Port Gig PoE     5.16   579.68    .979    567.50     561     79,905&lt;BR /&gt;
C3K122-24   24 Port Gig + 10G    .87    99.80    .957     95.50     326    134,714&lt;BR /&gt;
C3K122-24P  24 Gig + 10G PoE    5.05   559.58    .992    555.10     394     98,759&lt;BR /&gt;
C3K172-24   24 Port SFP + 10G    .60    65.00   1.000     65.00     223    166,032&lt;BR /&gt;
&lt;U&gt;Uplinks&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C3K-2XFP    Dual-XFP uplink     n/a     n/a       n/a     16.80      57    694,710&lt;BR /&gt;
&lt;BR /&gt;
10GBASE-xx-XFP 10G uplink       n/a     n/a       n/a     16.40      56     90,982&lt;BR /&gt;
&lt;U&gt;Redundant Power System&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C2RPS-PSM   Single RPS PSM      &amp;lt;2      n/a       n/a     &amp;lt;200     &amp;lt;683    300,000&lt;BR /&gt;
C2RPS-POE   RPS PoE            &amp;lt;10      n/a       n/a     &amp;lt;666    &amp;lt;2273    589,644&lt;BR /&gt;
Each PoE switch unit (model number ending with "P") can provide a total of 370 Watts (With f/w 6.03.01.0008 and higher, 375 Watts) of 48-Volt power that may be distributed to PoE clients over the normally used ethernet pairs 1,2,3, &amp;amp; 6. Any individual port can provide up to the maximum 15.4W specified in the IEEE 802.3af standard, if the power is not being demanded by other ports. If all ports require Power over Ethernet, then either the maximum 15.4W (24-port models) or the maximum 7.5W required by a Class 2 device (48-port models) may be delivered simultaneously to all ports. To accommodate power demands that exceed 370 (or 375) Watts, it is possible to prioritize which ports receive their full allotment of requested power - and special powershedding support enforces this priority at the expense of lower-priority ports. &lt;BR /&gt;
&lt;BR /&gt;
As additional information is made available, it will be added to this document. &lt;BR /&gt;
&lt;BR /&gt;
See also:&lt;UL&gt; 
&lt;LI&gt;Discussion of Watts, Volt-Amps, Power Consumption, and BTUs: &lt;A href="http://bit.ly/1pOV93L" target="_blank" rel="nofollow noreferrer noopener"&gt;2404&lt;/A&gt; 
&lt;/LI&gt;&lt;LI&gt;Functionality of the SecureStack RPS Systems: &lt;A href="http://bit.ly/IAFEZg" target="_blank" rel="nofollow noreferrer noopener"&gt;5741&lt;/A&gt; 
&lt;/LI&gt;&lt;LI&gt;Installation Guides/MTBF/Datasheets: &lt;A href="https://extranet.enterasys.com/downloads/pages/A2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;A2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/B2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;B2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/B3.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;B3&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/C2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;C2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/C3.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;C3&lt;/A&gt; Note: What is stated in this document are typical usage numbers that should be used when sizing HVAC, Power, and UPS for switch infrastructure. In the event that information sources disagree, for the stated purpose this document should be given preference over an Installation Guide, which should be given preference over the MTBF Page, which should be given preference over a Datasheet.&lt;/LI&gt;&lt;/UL&gt;</description>
    <pubDate>Tue, 03 Dec 2013 01:03:00 GMT</pubDate>
    <dc:creator>FAQ_User</dc:creator>
    <dc:date>2013-12-03T01:03:00Z</dc:date>
    <item>
      <title>Power, BTU, &amp; MTBF Information for the SecureStacks</title>
      <link>https://community.extremenetworks.com/t5/faqs/power-btu-mtbf-information-for-the-securestacks/m-p/46877#M423</link>
      <description>Article ID: 5418 &lt;BR /&gt;
&lt;BR /&gt;
&lt;B&gt;Products&lt;/B&gt;&lt;BR /&gt;
SecureStack A2&lt;BR /&gt;
SecureStack B2&lt;BR /&gt;
SecureStack B3&lt;BR /&gt;
SecureStack C2&lt;BR /&gt;
SecureStack C3 &lt;BR /&gt;
&lt;BR /&gt;
&lt;B&gt;Solution&lt;/B&gt;&lt;BR /&gt;
&lt;U&gt;SecureStack A2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
A2H123-24   24 10/100 &amp;amp; 2 100FX  .29    56.54    .559     31.60     108    121,739&lt;BR /&gt;
A2H124-24   24 Port 10/100       .27    50.49    .570     28.70      98    124,279&lt;BR /&gt;
A2H124-24P  24 Port 10/100 PoE  4.04   444.95    .998    444.00     166    201,377&lt;BR /&gt;
A2H124-24FX 24 Port 100FX        .54   107.47    .549     59.00     201     53,501&lt;BR /&gt;
A2H124-48   48 Port 10/100       .46    89.76    .554     49.70     170    115,219&lt;BR /&gt;
A2H124-48P  48 Port 10/100 PoE  4.20   464.20    .996    462.00     284    169,150&lt;BR /&gt;
A2H254-16    8 FX + 8 TX Ports   .33    61.60    .569     35.05     120    105,790&lt;BR /&gt;
&lt;U&gt;SecureStack B2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
B2G124-24   24 Port Gig          .41    80.63    .549     44.26     151    142,600&lt;BR /&gt;
B2G124-48   48 Port Gig         1.18   129.03   1.000    129.50     442    105,191&lt;BR /&gt;
B2G124-48P  48 Port Gig PoE     5.31   596.20    .978    583.10     550     80,331&lt;BR /&gt;
B2H124-48   48 Port 10/100       .72    79.24    .997     79.00     270    138,741&lt;BR /&gt;
B2H124-48P  48 Port 10/100 PoE  4.87   617.87    .952    534.70     384    115,872&lt;BR /&gt;
&lt;U&gt;SecureStack B3&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
B3G124-24   24 Port Gig          .58    63.47    .997     63.30     216    162,308&lt;BR /&gt;
B3G124-24P  24 Port Gig PoE     4.38   481.00   1.000    481.00     284    115,324&lt;BR /&gt;
B3G124-48   48 Port Gig         1.19   132.44    .989    131.00     447    110,509&lt;BR /&gt;
B3G124-48P  48 Port Gig PoE     5.16   579.70    .979    567.50     561     81,176&lt;BR /&gt;
&lt;U&gt;SecureStack C2&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C2G124-24   24 Port Gig          .41    80.63    .549     44.26     151    142,600&lt;BR /&gt;
C2G124-48   48 Port Gig         1.18   129.03   1.000    129.50     442    105,191&lt;BR /&gt;
C2G124-48P  48 Port Gig PoE     5.31   596.20    .978    583.10     550     80,331&lt;BR /&gt;
C2G134-24P  24 Gig RJ21 PoE     4.65   536.80    .952    511.27     304    145,462&lt;BR /&gt;
C2G170-24   24 SFP/MGBIC slots   .27    51.70    .569     29.42     100    157,413&lt;BR /&gt;
C2H124-48   48 Port 10/100       .72    75.13    .997     79.00     270    138,741&lt;BR /&gt;
C2H124-48P  48 Port 10/100 PoE  4.87   617.87    .952    534.70     384    115,872&lt;BR /&gt;
C2K122-24   24 Port Gig + 10G    .83    91.96    .989     90.95     310    147,132&lt;BR /&gt;
&lt;U&gt;SecureStack C3&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C3G124-24   24 Port Gig          .58    63.50    .997     63.30     216    160,505&lt;BR /&gt;
C3G124-24P  24 Port Gig PoE     4.38   481.00   1.000    481.00     284    114,280&lt;BR /&gt;
C3G124-48   48 Port Gig         1.20   132.46    .989    131.00     447    106,916&lt;BR /&gt;
C3G124-48P  48 Port Gig PoE     5.16   579.68    .979    567.50     561     79,905&lt;BR /&gt;
C3K122-24   24 Port Gig + 10G    .87    99.80    .957     95.50     326    134,714&lt;BR /&gt;
C3K122-24P  24 Gig + 10G PoE    5.05   559.58    .992    555.10     394     98,759&lt;BR /&gt;
C3K172-24   24 Port SFP + 10G    .60    65.00   1.000     65.00     223    166,032&lt;BR /&gt;
&lt;U&gt;Uplinks&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C3K-2XFP    Dual-XFP uplink     n/a     n/a       n/a     16.80      57    694,710&lt;BR /&gt;
&lt;BR /&gt;
10GBASE-xx-XFP 10G uplink       n/a     n/a       n/a     16.40      56     90,982&lt;BR /&gt;
&lt;U&gt;Redundant Power System&lt;/U&gt; &lt;BR /&gt;
 Product    Description         Amps  Volt-Amps  Power    Watts   BTU/hr   MTBF hrs&lt;BR /&gt;
                              &lt;B&gt;@110V&lt;/B&gt;             Factor&lt;BR /&gt;
C2RPS-PSM   Single RPS PSM      &amp;lt;2      n/a       n/a     &amp;lt;200     &amp;lt;683    300,000&lt;BR /&gt;
C2RPS-POE   RPS PoE            &amp;lt;10      n/a       n/a     &amp;lt;666    &amp;lt;2273    589,644&lt;BR /&gt;
Each PoE switch unit (model number ending with "P") can provide a total of 370 Watts (With f/w 6.03.01.0008 and higher, 375 Watts) of 48-Volt power that may be distributed to PoE clients over the normally used ethernet pairs 1,2,3, &amp;amp; 6. Any individual port can provide up to the maximum 15.4W specified in the IEEE 802.3af standard, if the power is not being demanded by other ports. If all ports require Power over Ethernet, then either the maximum 15.4W (24-port models) or the maximum 7.5W required by a Class 2 device (48-port models) may be delivered simultaneously to all ports. To accommodate power demands that exceed 370 (or 375) Watts, it is possible to prioritize which ports receive their full allotment of requested power - and special powershedding support enforces this priority at the expense of lower-priority ports. &lt;BR /&gt;
&lt;BR /&gt;
As additional information is made available, it will be added to this document. &lt;BR /&gt;
&lt;BR /&gt;
See also:&lt;UL&gt; 
&lt;LI&gt;Discussion of Watts, Volt-Amps, Power Consumption, and BTUs: &lt;A href="http://bit.ly/1pOV93L" target="_blank" rel="nofollow noreferrer noopener"&gt;2404&lt;/A&gt; 
&lt;/LI&gt;&lt;LI&gt;Functionality of the SecureStack RPS Systems: &lt;A href="http://bit.ly/IAFEZg" target="_blank" rel="nofollow noreferrer noopener"&gt;5741&lt;/A&gt; 
&lt;/LI&gt;&lt;LI&gt;Installation Guides/MTBF/Datasheets: &lt;A href="https://extranet.enterasys.com/downloads/pages/A2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;A2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/B2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;B2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/B3.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;B3&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/C2.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;C2&lt;/A&gt;/&lt;A href="https://extranet.enterasys.com/downloads/pages/C3.aspx" target="_blank" rel="nofollow noreferrer noopener"&gt;C3&lt;/A&gt; Note: What is stated in this document are typical usage numbers that should be used when sizing HVAC, Power, and UPS for switch infrastructure. In the event that information sources disagree, for the stated purpose this document should be given preference over an Installation Guide, which should be given preference over the MTBF Page, which should be given preference over a Datasheet.&lt;/LI&gt;&lt;/UL&gt;</description>
      <pubDate>Tue, 03 Dec 2013 01:03:00 GMT</pubDate>
      <guid>https://community.extremenetworks.com/t5/faqs/power-btu-mtbf-information-for-the-securestacks/m-p/46877#M423</guid>
      <dc:creator>FAQ_User</dc:creator>
      <dc:date>2013-12-03T01:03:00Z</dc:date>
    </item>
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