I would agree, it is very easy to go overboard and over engineer to the n'th degree, however if you do that you will find that you would be introducing more elements which would cause a negative effect.
E.g. Heat and power consumption... Coming for the wired world, where only now folks have started to pay attention to power comsumption and heat generation as being a bad thing.. I consistently amazed to see some very 'powerful' wireless equipment working with a 'wall wart'... It takes a bit for it to sync in....due to the low power consumption that is all what is needed.. Moral of the story: Very easy to get carried away and over engineer, but doing it within reasonable limits is the right thing to do. ... Just me two cents.. BTW: I have one of the APC redundant power switches, purchased it, thinking it would be a good thing to use... But never put it to use... Don't need it in a Data center ! -:) Faisal Imtiaz Computer Office Solutions Inc. /SnappyDSL.net Ph: (305) 663-5518 x 232 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Josh Luthman Sent: Friday, October 24, 2008 10:42 AM To: WISPA General List Subject: Re: [WISPA] Dual Power Supply, how to? Not necessarily - your goal is to keep it powered 100% of the time. What part seems to go bad for you most of the time? The power supply, PoE, DC jack, power company/UPS unit? If the power supply on the board goes bad you're SOL, sorry. You'll have to find another product. If the PoE or DC jack goes back, you need to get both of them powered. If you have the power company and UPS go bad find a second source of power (generator?). Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer On Fri, Oct 24, 2008 at 10:38 AM, Gino Villarini <[EMAIL PROTECTED]> wrote: > Yeah, but the whole idea is to have every device with dual inputs.... > > Gino A. Villarini > [EMAIL PROTECTED] > Aeronet Wireless Broadband Corp. > tel 787.273.4143 fax 787.273.4145 > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Faisal Imtiaz > Sent: Friday, October 24, 2008 10:20 AM > To: [EMAIL PROTECTED]; 'WISPA General List' > Subject: Re: [WISPA] Dual Power Supply, how to? > > > Just a quick follow up. > > A quick search of the internet shows up a lot of devices. > (APC makes a few different types). > These are either called Dual AC Automatic Transfer Switch. > Or depending on your voltage needs, you could modify an Dual AC power > supply module for Computer Or find a AC to DC rack mount powersupplies > used in Telco's . > They are typically modular but big and heavy. > > Many options. > > Faisal Imtiaz > ----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Faisal Imtiaz > Sent: Friday, October 24, 2008 10:02 AM > To: 'WISPA General List' > Subject: Re: [WISPA] Dual Power Supply, how to? > > Depending on how your sites are designed, APC makes a Dual Feed AC > swtich for this purpose. > > > Thanks > > > Faisal Imtiaz > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Gino Villarini > Sent: Friday, October 24, 2008 8:30 AM > To: WISPA General List > Subject: Re: [WISPA] Dual Power Supply, how to? > > We have a reason for this, we design our sites with dual power work > ease of work ...Side A and Side B. Side A is connected to the UPS > Plant, Side B to Utility. In Case Of UPS failure, we are not out. > > > > Gino A. Villarini > [EMAIL PROTECTED] > Aeronet Wireless Broadband Corp. > tel 787.273.4143 fax 787.273.4145 > > ________________________________ > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Blair Davis > Sent: Friday, October 24, 2008 1:44 AM > To: WISPA General List > Subject: Re: [WISPA] Dual Power Supply, how to? > > > > Yes, you could do this.... > > You will need to pick the right diode for the job. > > But what brings this on? > > I've had almost no PS failures that were not part of some major damage. > (lightning, power co. problem... 480V on 110V line) > > If you are having many PS failures, you might look at the load vs the PS > rating. Don't forget the radio cards... > > > > CHUCK PROFITO wrote: > > OK guys, don't LOL, I'm just a farm boy, but... > Why couldn't you put two power supplies together into one plug, then if > one > failed the other would do full duty. Would a diode inline on both stop a > possible transformer shorting the other out or draining the power from > the > good one? > Can that work? > > Chuck Profito > 209-988-7388 > CV-ACCESS, INC > [EMAIL PROTECTED] > Providing High Speed Broadband > to Rural Central California > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of RickG > Sent: Thursday, October 23, 2008 8:26 PM > To: WISPA General List > Subject: Re: [WISPA] Dual Power Supply, how to? > > Why not use two power supplies, one on the dc jack and the other on the > poe > connection? -RickG > > On Thu, Oct 23, 2008 at 7:59 PM, Gino Villarini <[EMAIL PROTECTED]> > <mailto:[EMAIL PROTECTED]> wrote: > > > Hello all > > Im looking for a way to add redundant power to my mikrotik > routers > at > the towers, The routers have a DC jack, so im looking for > options.. > > Anything available? Or would I have to make my own? > > Gino A. 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