optical gear cooling requirements

[jfbeam at gmail.com (Ricky Beam)]

On Tue, 03 Mar 2015 20:52:44 -0500, Martin Hannigan <hannigan at gmail.com>  
wrote:
> Remember the Ascend MAX TNT and the sideways left-right airflow?
...

Indeed I do. I see you've heard the story of PSINet melting components as  
well.

We used USR(3Com) TotalControl hardware: vertical venting. The chimney  
effect was impressive. (65F in, 100+ -- sometimes 120 -- out.)

(I've complained for over a decade about $DAYJOB building crap with  
side-to-side venting.)

--Ricky