[178772] in North American Network Operators' Group

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RE: optical gear cooling requirements

daemon@ATHENA.MIT.EDU (Naslund, Steve)
Wed Mar 4 16:38:03 2015

X-Original-To: nanog@nanog.org
From: "Naslund, Steve" <SNaslund@medline.com>
To: "nanog@nanog.org" <nanog@nanog.org>
Date: Wed, 4 Mar 2015 21:37:58 +0000
In-Reply-To: <op.xuzrhvd6tfhldh@rbeam.xactional.com>
Errors-To: nanog-bounces@nanog.org

I remember that there was an Ascend DSLAM built on the same chassis and it =
was collocated by someone into Ameritech central offices.  Ameritech shut t=
hem all down saying that there was no way, no how that the device could be =
NEBS compliant.  I don't know how that fight ever turned out, they were not=
 ours.  Side to side airflow is really bad news.  Even with vertical you co=
uld at least mount some kind of baffles and lose a few Us. With side to sid=
e it is really hard to find a way to redirect air with the flanges in the w=
ay.

Steven Naslund
Chicago IL

> Remember the Ascend MAX TNT and the sideways left-right airflow?
>...


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