Fibre and Load Shedding

Geoff.D said:
There are a few threads on the forum already about this issue.
Forget the UPS solutions!. Get a proper DC backup power supply which switches in and connects to a battery backup when the power goes off. Why the DC to AC conversion to feed an AC power supply to convert back to DC to feed the devices? A simple DC - DC conversion from 12V to whatever the router needs is by far the better solution.
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Thanks for this extensive response. It doesn’t all make sense to me but I will google a DC Backup Power Supply.
 
Geoff.D said:
There are a few threads on the forum already about this issue.
Forget the UPS solutions!. Get a proper DC backup power supply which switches in and connects to a battery backup when the power goes off. Why the DC to AC conversion to feed an AC power supply to convert back to DC to feed the devices? A simple DC - DC conversion from 12V to whatever the router needs is by far the better solution.
Click to expand...
Lol, spot the electrician. :p
 
pinball wizard said:
There's a router from your ISP and an ONT from the fibre provider - you can power these devices in your home via a UPS/genset. You have zero control over the actual fibre line. If the UPS/generator at the POP goes down, your link will still go down.
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This is something that I haven't considered. My POP is in a flat complex behind our house. Are you saying that if they (Vumatel) hadn't installed some sort of backup there, then it's pointless me buying that 12v UPS from GeeWiz?
 
Geoff.D said:
There are a few threads on the forum already about this issue.
Forget the UPS solutions!. Get a proper DC backup power supply which switches in and connects to a battery backup when the power goes off. Why the DC to AC conversion to feed an AC power supply to convert back to DC to feed the devices? A simple DC - DC conversion from 12V to whatever the router needs is by far the better solution.
Click to expand...
Wow! It was a mistake to google it - made me even more confused!!!
 
Honey Badger said:
This is something that I haven't considered. My POP is in a flat complex behind our house. Are you saying that if they (Vumatel) hadn't installed some sort of backup there, then it's pointless me buying that 12v UPS from GeeWiz?
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Yes.

Vuma will have some form of battery backup, but depending on the size of the POP it may not last more than a couple of hours.
 
RedViking said:
Lol, just go with what Chucky posted. UPS for router should be fine.
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Looking like it’s my simplest solution! I ain’t no rocket scientist (or electrician or IT Guru). :ROFL:
 
pinball wizard said:
Point of Presence. It's where your fibre provider aggregates all the end users in a specific area and does their fancy stuff to transport your traffic back to the data centre.
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Ah!! Interesting!!
 
MrsGreen said:
Wow! It was a mistake to google it - made me even more confused!!!
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Ja unfortunately.

This is the way to go about it. Have a look at the power supply that comes with the ONT and router. Check the specifications. Does it already have a battery backup supply or is it simply a gadget that looks like a cell phone charger?
something like this:

INPUT: 100-240 Volt 50/60Hz 0.5A === VA = 230 x 0.5 = 115 VA
OUTPUT: 12V DC 1A watts = 12W

Post and we will be able to point you in the right direction as to where you can get a suitable battery backup supply similar to that used for alarms systems.

What about your fibre supplier? get hold of him and ask him if he has an already approved unit available?
Much better than just going for an el cheapo modified sine wave UPS
 
Geoff.D said:
Ja unfortunately.

This is the way to go about it. Have a look at the power supply that comes with the ONT and router. Check the specifications. Doe sit already have a battery backup supply or is it simply a gadget that looks like a cell phone charger?
something like this:

INPUT: 100-240 Volt 50/60Hz 0.5A === VA = 230 x 0.5 = 115 VA
OUTPUT: 12V DC 1A watts = 12W

Post and we will be able to point you in the right direction as to where you can get a suitable battery backup supply similar to that used for alarms systems.

What about your fibre supplier? get hold of him and ask him if he has an already approved unit available?
Much better than just going for an el cheapo modified sine wave UPS
Click to expand...
el cheapo working fine for my ADSL router..... but I guess you fibre people have fancy stuff.
 
RedViking said:
el cheapo working fine for my ADSL router..... but I guess you fibre people have fancy stuff.
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But not necessarily good for your router, or actually cheaper than doing it properly with much fewer hassles.
All you need to know is the Voltage required, the current draw and the power connection.
 
Geoff.D said:
But not necessarily good for your router, or actually cheaper than doing it properly with much fewer hassles.
All you need to know is the Voltage required, the current draw and the power connection.
Click to expand...
I've got a drawer full of working ADSL routers.:D Still on the same one for the last 3 years. Modified Sine is really not that bad. But anyways.... You probably right, although it is just simple and easy to buy a UPS. You just plug it in. What is the hassle? IMG_20190315_135801.jpg

You maybe have a pic of the setup you recommend?
 
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If the beeping every 10 seconds annoys you get someone to open up the UPS and cover the internal speaker with lots of prestik.
Some people remove the speaker.
I choose not to as the internal speaker also acts as an alarm for when things go wrong, like your battery is old and needs replacing for example.

This is my little 600VA UPS that is 17 years old i have at work to keep my iMac running during load shedding, it only needs to keep running 10 minutes max while the guys at work switch over to generators (sometimes less time if they know we are going to have load shedding :ROFL:)
1552651228272.png
 
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