[Rack] Mode-S receiver down

Jordan Hayes jmhayes at j-o-r-d-a-n.com
Mon Feb 24 19:24:33 UTC 2014

Hi --

Last night around 7:30pm, the Mode-S receiver that's up on the roof 
stopped working.  I can think of a number of things that might have 

- It actually died

This seems a little unlikely, because it's a pretty robust little 
package and has seen a lot more abuse that it gets on the roof in SF. 
It's also possible that the cable has become pinched somehow on its way 
to the roof.

- Someone unplugged it?

This has happened before (multiple times, actually).  It has a POE power 
wart near the bottom of the stairs that lead to the roof in the 
northwest corner of the space.  You can see the grey ethernet cable 
going up to the roof from there.

- Someone unplugged it from the switch port that it uses?

This *also* has happened multiple times, for reasons that remain unclear 
to me.

Was anyone in the space last night around that time making any 
network/power changes?  The IP address it is assigned is, 
which is unresponsive today.

Failing that, is there anyone who is presently in the space who could 
take a look for me?  Or will be there sometime soon?  Of course I'm out 
of town this week or I'd come over and take a look.



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