We have at least 50 CRS and I've never seen that.
We aren't using the wall warts though. These are almost all on Traco
48v power supplies plus a 48 to 24 converter. So I have a second layer
of conversion between the device and the power. That's just an
observation and I don't know that it ought to make a difference.
------ Original Message ------
From: "Sterling Jacobson" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: 8/23/2017 1:39:43 PM
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?
