Router Battery Backup

Thank you for the response, the issue is the router is rated for 24v DC hence me wanting to go the PoE route. The second issue is if I go the PoE route, the Mikrotik router only has one "internet/PoE" port so that means I wouldn't be able to connect the router to the ONT, granted there are other LAN ports but no internet connectivity if I connect the ONT to one of the LAN. Any idea as to how I would set it up

mikrotik accepts 8-30V DC or POE

b6152862d88d436e2cddd899c40078fc.jpg


mine is happily running on 12V from Ultralan UPS if you using POE to power other devices you would need to look at power requirements carefully
 
Here we go,Ultralan
The description says that it's passive POE. Normally passive does not do gigabit POE?
 
Made my Ratel 860P POE port gigabit capable by using a POE Splitter and feeding the output into one of these:
Adds a bit to the cost, but now I can drive my two gigabit Ubiquity APs from 1 UPS. Works great!
Is that a passive PoE injector? You know you can get the single port version for like 50 bucks. From scoop and most other places, right?

Edit: adding link:

 
The description says that it's passive POE. Normally passive does not do gigabit POE?
Passive is just a passthrough. Shouldn't affect the speed, unless they've made a point to not connect all the pins internally.
 
Passive is just a passthrough. Shouldn't affect the speed, unless they've made a point to not connect all the pins internally.


we use these and they work perfectly

except ubiquity dish wants 24V POE and AP uses 48V so had to split them
 
Here we go,Ultralan

more like a cheap gizzu copy

i use this ultralan and works perfectly

 
Passive is just a passthrough. Shouldn't affect the speed, unless they've made a point to not connect all the pins internally.
Passive on Base100 was using the unused pairs
1646938920672.png
On Gigabit you need to do some wanga wanga to split the data and power from the same pairs
 
The description says that it's passive POE. Normally passive does not do gigabit POE?

It's a thing,a rare thing,but a thing
 

It's a thing,a rare thing,but a thing
Interesting. I would like to see the approach behind this, as active gigabit POE is pretty complex to modulate the signal with the power. Also what are the pros and cons of each approach?
 
Interesting. I would like to see the approach behind this, as active gigabit POE is pretty complex to modulate the signal with the power. Also what are the pros and cons of each approach?
Wikipedia says:
In a passive PoE system, the injector does not communicate with the powered device to negotiate its voltage or wattage requirements, but merely supplies power at all times. The common 100 Mbit/s passive applications use the pinout of 802.3af mode B (see § Pinouts) – with DC positive on pins 4 and 5 and DC negative on 7 and 8 and data on 1-2 and 3-6. Gigabit passive injectors use a transformer on the data pins to allow power and data to share the cable and are typically compatible with 802.3af Mode A
 
Wikipedia says:
In a passive PoE system, the injector does not communicate with the powered device to negotiate its voltage or wattage requirements, but merely supplies power at all times. The common 100 Mbit/s passive applications use the pinout of 802.3af mode B (see § Pinouts) – with DC positive on pins 4 and 5 and DC negative on 7 and 8 and data on 1-2 and 3-6. Gigabit passive injectors use a transformer on the data pins to allow power and data to share the cable and are typically compatible with 802.3af Mode A
Yep. Thanks. I was just reading this article that also links to a Netgear site, with a good summary:


So passive POE can be dc only on the spare pins for 10/100, or dc with the signal modulated over the same pins for gigabit POE.

Active POE additionally provides protection with some level of intelligence that only switched on the power if the connected device is a POE device.

Never too old to learn
 
Passive was invented first and had some misses,Active is miles better indeed

There are some other less-popular standards like Cisco's earlier PoE too
Yep. Thanks. I was just reading this article that also links to a Netgear site, with a good summary:


So passive POE can be dc only on the spare pins for 10/100, or dc with the signal modulated over the same pins for gigabit POE.

Active POE additionally provides protection with some level of intelligence that only switched on the power if the connected device is a POE device.

Never too old to learn
 
Need some MYBB expert advice please
Do I go for the Ellies Cube Mini as above or the Ratel 860P as replacement for my dead VIZIA?

The Ellies is not an “in line” UPS as I recall and would require you changing over power manually every time you want to use it.

It’s more like a portable power solution for camping etc.
 
The Ellies is not an “in line” UPS as I recall and would require you changing over power manually every time you want to use it.

It’s more like a portable power solution for camping etc.
Not correct, my Ellies cube's been quietly powering the the router and ONT for some time without any interference from me.
 
The Ellies is not an “in line” UPS as I recall and would require you changing over power manually every time you want to use it.

It’s more like a portable power solution for camping etc.

That’s not true, once load shedding kicks in I do nothing. My ONT box and router are powered for 13 hours. Plug in and forget.
 
Passive on Base100 was using the unused pairs
View attachment 1266592
On Gigabit you need to do some wanga wanga to split the data and power from the same pairs

Wikipedia says:
In a passive PoE system, the injector does not communicate with the powered device to negotiate its voltage or wattage requirements, but merely supplies power at all times. The common 100 Mbit/s passive applications use the pinout of 802.3af mode B (see § Pinouts) – with DC positive on pins 4 and 5 and DC negative on 7 and 8 and data on 1-2 and 3-6. Gigabit passive injectors use a transformer on the data pins to allow power and data to share the cable and are typically compatible with 802.3af Mode A

Yep. Thanks. I was just reading this article that also links to a Netgear site, with a good summary:


So passive POE can be dc only on the spare pins for 10/100, or dc with the signal modulated over the same pins for gigabit POE.

Active POE additionally provides protection with some level of intelligence that only switched on the power if the connected device is a POE device.

Never too old to learn

So as I was saying - you can just treat a passive PoE device like a passthrough in most cases.
(Although it may be helpful if you can crimp your own connectors - that way you can swap wires / pairs if required).
Or do weird things like - I pulled the power pair out of my RJ45 and hooked them to a DC jack so my passive PoE became separate DC power + data on the other side of the connection.
 
So I am looking for a backup for my cctv system during Loadshedding. Currently the PSU uses a normal 3pin connector and the DVR a 2 pin.

Geewiz recommended this unit:


Thoughts..?
 
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