Ducking by the way :) 

Dennis Burgess - Network Solution Engineer - Consultant 
MikroTik Certified Trainer/Consultant - MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE

For Wireless Hardware/Routers visit www.linktechs.net
Radio Frequency Coverages: www.towercoverage.com 
Office: 314-735-0270
E-Mail: [email protected] 


-----Original Message-----
From: Af [mailto:[email protected]] On Behalf Of Dennis Burgess
Sent: Wednesday, August 23, 2017 4:46 PM
To: [email protected]
Subject: Re: [AFMUG] Brown-outs, Power fluctuations lock up Mikrotik CRS units

Maybe a battery backup ? 


Dennis Burgess - Network Solution Engineer - Consultant MikroTik Certified 
Trainer/Consultant - MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE

For Wireless Hardware/Routers visit www.linktechs.net Radio Frequency 
Coverages: www.towercoverage.com
Office: 314-735-0270
E-Mail: [email protected] 

-----Original Message-----
From: Af [mailto:[email protected]] On Behalf Of Sterling Jacobson
Sent: Wednesday, August 23, 2017 12:40 PM
To: '[email protected]' <[email protected]>
Subject: [AFMUG] Brown-outs, Power fluctuations lock up Mikrotik CRS units

I get power glitches from time to time in our city and it never fails to cause 
one or more of our CRS units to glitch.

They appear powered and running, but SFP+ modules don't communicate until a 
power cycle.

Anyone else see this?

And generally, I don't understand how variations in 110v AC get through the DC 
power wart and cause problems to the CRS.

I mean, shouldn't the conversion from AC to DC inherently clean up some of the 
crap of the AC power?

Or is this a function of the power dipping low enough for brief time, that the 
DC also goes almost out then surges back?

The CRS handles a wide range of DC input voltage, so I thought it would be more 
immune to fluctuations of DC voltage too.

Is that what is causing problems with the CRS maybe?


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