Try a bit bigger differential in voltage... 

Faisal Imtiaz 
Snappy Internet & Telecom 
7266 SW 48 Street 
Miami, FL 33155 
Tel: 305 663 5518 x 232 

Help-desk: (305)663-5518 Option 2 or Email: 

> From: "TJ Trout" <>
> To:
> Sent: Saturday, October 15, 2016 6:43:04 PM
> Subject: [AFMUG] dual psu with diode, ccr1036 wierdness

> to increase reliability on my new ccr1036 router, I decided to add a second 
> 24v
> psu and isolate the two with rectifier diodes. The factory PSU puts out about
> 24v, after the diode drop it's about 23 and change, I installed a second psu
> and adjusted the output to 22v or about 21 and change after the diode.
> I installed the router and started monitoring the reported voltage by SNMP
> logging, I noticed it started out at 23v and then has been slowly jumping down
> and back up to 22v any idea why it wouldn't just keep taking power from the
> source with the highest voltage?

> Is this going to be a problem? I was hoping to monitor for main psu failure by
> sending an alert below 23v which would tell me if the main PSU failed but for
> some reason this isn't working as planned...

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