It depends on the model... I'm pretty sure we have a 12 port model that only regulates the 24v output (if the ports are set to 48v, they just get whatever is fed in), but I think that particular switch may be discontinued.
On Fri, May 19, 2017 at 6:45 PM, Rory Conaway <[email protected]> wrote: > Which model are you testing. The WS-6 is the only one that does that. > The rest have regulators. > > > > Rory > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Chuck McCown > *Sent:* Friday, May 19, 2017 4:09 PM > > *To:* [email protected] > *Subject:* Re: [AFMUG] Netonix POE > > > > When I put in 55 I get out 55. > > > > *From:* Rory Conaway > > *Sent:* Friday, May 19, 2017 5:08 PM > > *To:* [email protected] > > *Subject:* Re: [AFMUG] Netonix POE > > > > They can take 9-72V and put out 24 or 48V. > > > > Rory > > > > *From:* Af [mailto:[email protected] <[email protected]>] *On > Behalf Of *Chuck McCown > *Sent:* Friday, May 19, 2017 4:04 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Netonix POE > > > > I don’t think Netonix had a DC-DC, it just puts out what it is fed. > > > > *From:* George Skorup > > *Sent:* Friday, May 19, 2017 4:33 PM > > *To:* [email protected] > > *Subject:* Re: [AFMUG] Netonix POE > > > > Remember that Forrest's SyncInjector/PowerInjector/RackInjector products > allow 2A per port. But maybe it doesn't matter because of the built-in > current protection? > > Also consider that something like a Medusa could be running on battery > power for >30 minutes. Say 75W @ 44VDC = ~1.71A worst case. I say 75W due > to variables (cable length, etc). It's fine if your supply is always 56VDC. > I use a lot of Traco BCMU360s which are regulated 48VDC, which then becomes > ~1.57A. Well, it dips down to about 46 volts or so when the battery is > getting low. I'm sure there are/will be folks wanting to run a 450m on a > Netonix. Maybe it doesn't matter because the Netonix internal DC-DC always > puts out 54VDC, doesn't it? I don't know. > > On 5/19/2017 5:01 PM, [email protected] wrote: > > I made a circuit board that fits into the APC rack.� It is an Ethernet > fuse board.�� Kinda a belt and suspenders for maximum protection of an > CAT5/6 circuit.� If a surge suppressor clamps during a major event, this > fuse board will blow to prevent damage to a POE supply.� Have LEDS on 4 > of the 8 pins to detect blown fuses if it is a POE circuit.� > > � > > Been tweaking the fuse values for about a month.� Did the first run of > the pre-production part and started testing.� I tweaked the fuses to blow > about a bit over 2 amps.� > > � > > Started doing some long term burn in runs to check thermal considerations > etc.� Had the load dialed in to 2 amps.� Powered by a Netonics doing 54 > volts.� > > � > > It ran for about a half hour before blowing the Netonix port.� They say > 2 amps surge, 1.5 amps continuous.� I think they *actually mean it*.� > I was hoping it would survive 2 amps continuous, but it will not.� So I > have a roll of smt fuses that are worth about $650 that I will not be using > unless I release a 1.5 amp and a 2 amp version of this product.� > > � > > RJ45 pins are rated at a half amp each so 2 amps per jack.� 2 amps would > be a good generic value.� Not sure whether to offer two different amp > ratings or one.� > > >
