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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hey all, sorry I did mean to say ASR1001 (an X model to be exact). The 4 post mounting they show in a hardware mounting doc uses front and back ears, which I’ve never done:<br><a href="https://www.cisco.com/c/en/us/td/docs/routers/asr1000/install/guide/asr1routers/asr-1000-series-hig/asr-hig-1001.html#task_1205646">https://www.cisco.com/c/en/us/td/docs/routers/asr1000/install/guide/asr1routers/asr-1000-series-hig/asr-hig-1001.html#task_1205646</a><br>see figure 16 slightly down from there. <br><br>I do see some generic rails from TrippLite that probably would work, as well as shelves. I was hoping a standard depth that most vendors honored for 4 post existed, but it doesn’t seem likely. We’ll have a variety of PaloAlto, Cisco, Checkpoint, and others co-habiting.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Chuck<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> NANOG <nanog-bounces+chuckchurch=gmail.com@nanog.org> <b>On Behalf Of </b>Mark Stevens<br><b>Sent:</b> Thursday, April 27, 2023 11:17 AM<br><b>To:</b> nanog@nanog.org<br><b>Subject:</b> Re: Standard DC rack rail distance, front to back question<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Lucky you with a 19" data rack. All I have are 23" telco racks but I will say, the 23" extension ears from Cisco are serious and my router chassis' don't sag.<br><br>Mark<br><br>On 4/27/2023 10:04 AM, Chris Marget wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>On Thu, Apr 27, 2023 at 9:53 AM Chuck Church <<a href="mailto:chuckchurch@gmail.com">chuckchurch@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>for a Cisco ASA1001, there aren’t rails, but rather front and back ‘ears’ you use to hit both front and back posts.<o:p></o:p></p></div></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Front *and* back ears? I'm not sure what an ASA 1001 is (ASR?) but my experience with these boxes is that they have a single pair of ears which can be mounted front OR back.<br><br>The heavier / deeper 1RU devices do tend to sag alarmingly.<o:p></o:p></p></div><div><p class=MsoNormal> <o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> Is there a ‘standard’ distance between front and back rails that devices usually adhere to?<o:p></o:p></p></div></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If you're thinking of setting the front/back distance to accommodate a specific device, table 2 might be of some interest:<o:p></o:p></p></div><div><p class=MsoNormal><a href="https://i.dell.com/sites/doccontent/business/solutions/engineering-docs/en/Documents/rail-rack-matrix.pdf">https://i.dell.com/sites/doccontent/business/solutions/engineering-docs/en/Documents/rail-rack-matrix.pdf</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>