Yeah a fully charged 24 volt rechargeable battery in parallel with the load would probably fix the problem. Get a couple small gel cells. But they will have an inrush current too.
Sent from my iPhone > On Sep 3, 2020, at 1:11 PM, Ken Hohhof <af...@kwisp.com> wrote: > > > I guess I’d like to hear how many watts you need for stuff that can run on > 48/56 volts, vs how many for stuff that must have 24V. > > 240 watts is a lot of 48V, I would seriously think about a 48V power supply > and battery string. Even if you put that along side your 24V setup. > Batteries are really good at handling inrush current. > > > From: AF <af-boun...@af.afmug.com> On Behalf Of Chuck McCown > Sent: Thursday, September 3, 2020 1:56 PM > To: AnimalFarm Microwave Users Group <af@af.afmug.com> > Subject: Re: [AFMUG] 24v to 48v upconverter pulses > > Lots of equipment will have a high inrush current wham starting. I think you > don’t have enough capacity to get things started. Cheap DC-DC converters > don’t like high starting loads. A fix would be a series inductor with a > flywheel diode. I am on the road else I would help with some component > selection. > > Sent from my iPhone > > > On Sep 3, 2020, at 11:34 AM, Sterling Jacobson <sterl...@avative.net> wrote: > > > I bought a cheap 24v to 48v (5A max) upconvert from Amazon. > > I have it wired to feed a MT CRS switch via DC and radio via POE on the 48v > leg. > > But when I plug everything in, the CRS doesn’t show any lights, and the > radio/POE just pulses green light it’s powering, then not powering in a cycle. > > When I remove the radio POE, the CRS will start pulsing green light it’s > getting power for a split second, then not, then power, in a cycle just like > the radio POE. > After maybe 10-20 seconds the CRS finally gets full power and boots up just > fine. > After it begins to get full power I can plug in the POE to the radio and it > boots up just fine too. > > I’ve tried different power supplies and different POE injectors and different > CRS switches and different 24v to 48v upconvert modules, always the same. > > So I’m thinking I need to do something inline with the 24v feed to maybe > delay or build up amperage first? > > It really sounds like an odd electronics problem with this particular > upconverter that may be lacking a component necessary for my scenario. > > What do you electronics people think? > > From: AF <af-boun...@af.afmug.com> On Behalf Of Josh Baird > Sent: Wednesday, September 2, 2020 6:42 AM > To: AnimalFarm Microwave Users Group <af@af.afmug.com> > Subject: Re: [AFMUG] Mikrotik Vrrp > > Yes - the VRRP should be a /32. Typical configuration looks like this: > > Router1: > > ether1: 192.168.1.2/24 > vrrp.ether1: 192.168.1.1/32 > > Router2: > > ether1: 192.168.1.3/24 > vrrp.ether1: 192.168.1.1/32 > > Your VRRP interface (192.168.1.1/32) should be a /32, and it should be on the > same subnet as your "physical" interfaces. > > On Tue, Sep 1, 2020 at 11:06 PM Rhys Cuff (Speedweb Internet) via AF > <af@af.afmug.com> wrote: > Hi Guys > > Has anyone had much experience with using Vrrp on a Mikrotik? > It seemed pretty easy to setup but the manual said the floating IP must be a > /32 and to put an IP on the physical interface with a /24 > This seemed wrong so I just put a /24 on the Vrrp interface and a completely > different subnet on the physical interface for the routers to communicate. > > Thinking I was clever all was well till about 1am two days after I did this, > then it completely failed, switching back and forth from master to backup, > basically having two masters on and off. > > Is having a /32 on the vrrp really necessary, if so why? > Why would it have been all good for two days? > > So my config that lasted two days > Vrrp 192.168.1.1/24 (floating IP I care about) > Physical 10.0.1.1/24 (to communicate with master/backup routers) > > How the manual says to do it > Vrrp 192.168.1.1/32 > Physical 192.168.1.2/24 > > Doing it the second way will mean a lot more IP’s/config as I want to have > around 20 floating IP’s > > Thanks again for any help. > > Rhys > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
