On 2025-08-14, Carlos E. R. <robin_listas@es.invalid> wrote:
I do have an UPS at the router, which died soon. I don't know what
failed sooner, the fibre or the ups. Supposedly the fibre is all optics
to the exchange and should have survived.
The vast majority of home computer UPSes are sized to keep a computer
running for 10 minutes, just so you can shut it down, although it may
be able to power the routers in your comms closet (and a WiFi access
point) for a few hours, so you can have Internet on your phone.
Here in California, we have enough wildfire related outages that I
decided to put up a 14kW generator powered by natural gas, which
switches on automatically within 10 seconds if the grid power drops.
And I have a UPS for my computers and another for my comms closet so
that those stay up through the switchover.
On 2025-08-15 04:07, Lars Poulsen wrote:
On 2025-08-14, Carlos E. R. <robin_listas@es.invalid> wrote:
I do have an UPS at the router, which died soon. I don't know what
failed sooner, the fibre or the ups. Supposedly the fibre is all optics
to the exchange and should have survived.
The vast majority of home computer UPSes are sized to keep a computer
running for 10 minutes, just so you can shut it down, although it may
be able to power the routers in your comms closet (and a WiFi access
point) for a few hours, so you can have Internet on your phone.
I forgot to mention that the optimal solution is for the router to have
its own battery. This will truly last hours. Having an UPS generating
the mains AC voltage from a 12V battery, and then convert back to 12 VDC
for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with battery backup.
Here in California, we have enough wildfire related outages that I
decided to put up a 14kW generator powered by natural gas, which
switches on automatically within 10 seconds if the grid power drops.
And I have a UPS for my computers and another for my comms closet so
that those stay up through the switchover.
I forgot to mention that the optimal solution is for the router to have
its own battery. This will truly last hours. Having an UPS generating
the mains AC voltage from a 12V battery, and then convert back to 12 VDC
for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with battery backup.
On Fri, 15 Aug 2025 12:15:43 +0200, Carlos E. R. wrote:
I forgot to mention that the optimal solution is for the router to have
its own battery. This will truly last hours. Having an UPS generating
the mains AC voltage from a 12V battery, and then convert back to 12 VDC
for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with battery
backup.
My Wifi router/4G modem does have its own battery and will last for close
to 10 hours. Last summer when the power was off for 6 days it didn't
help. With my UPS I generally wait for 10 minutes before powering the
boxes off when the lights go out.
On 2025-08-15 22:16, rbowman wrote:
On Fri, 15 Aug 2025 12:15:43 +0200, Carlos E. R. wrote:
I forgot to mention that the optimal solution is for the router to
have its own battery. This will truly last hours. Having an UPS
generating the mains AC voltage from a 12V battery, and then convert
back to 12 VDC for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with
battery backup.
My Wifi router/4G modem does have its own battery and will last for
close to 10 hours. Last summer when the power was off for 6 days it
didn't help. With my UPS I generally wait for 10 minutes before
powering the boxes off when the lights go out.
Wow, six days!
On Fri, 15 Aug 2025 23:14:23 +0200, Carlos E. R. wrote:
On 2025-08-15 22:16, rbowman wrote:
On Fri, 15 Aug 2025 12:15:43 +0200, Carlos E. R. wrote:
I forgot to mention that the optimal solution is for the router to
have its own battery. This will truly last hours. Having an UPS
generating the mains AC voltage from a 12V battery, and then convert
back to 12 VDC for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with
battery backup.
My Wifi router/4G modem does have its own battery and will last for
close to 10 hours. Last summer when the power was off for 6 days it
didn't help. With my UPS I generally wait for 10 minutes before
powering the boxes off when the lights go out.
Wow, six days!
Very unusual. It was a derecho also very unusual for this area. Most of
the trees are ponderosa pines which can reach over 200' high but have very shallow root systems so they blew over, blocking roads and taking out the transmission lines. One section near my house didn't have trees but the
power poles themselves blew down in a domino effect. It was a mess to put
it mildly.
It was summer so the temperature was no problem. I have a gas stove so cooking was not a problem either. I didn't have a lot in the refrigerator
and could get ice from a store that still had power so I didn't lose anything. I could have charged the Kindles from the car like I did the
phone but I have plenty of real books to read. I got some bottled water
since the electric well pup was down, and could get water to flush the
toilet from an irrigation ditch or the river. It was sort of relaxing to
tell the truth. No internet.
On Fri, 15 Aug 2025 23:14:23 +0200, Carlos E. R. wrote:
On 2025-08-15 22:16, rbowman wrote:
On Fri, 15 Aug 2025 12:15:43 +0200, Carlos E. R. wrote:
I forgot to mention that the optimal solution is for the router to
have its own battery. This will truly last hours. Having an UPS
generating the mains AC voltage from a 12V battery, and then convert
back to 12 VDC for the router, is a big waste.
Alternatively, power the router via a 12 volt power supply with
battery backup.
My Wifi router/4G modem does have its own battery and will last for
close to 10 hours. Last summer when the power was off for 6 days it
didn't help. With my UPS I generally wait for 10 minutes before
powering the boxes off when the lights go out.
Wow, six days!
Very unusual. It was a derecho also very unusual for this area. Most of
the trees are ponderosa pines which can reach over 200' high but have very shallow root systems so they blew over, blocking roads and taking out the transmission lines. One section near my house didn't have trees but the
power poles themselves blew down in a domino effect. It was a mess to put
it mildly.
It was summer so the temperature was no problem. I have a gas stove so cooking was not a problem either. I didn't have a lot in the refrigerator
and could get ice from a store that still had power so I didn't lose anything. I could have charged the Kindles from the car like I did the
phone but I have plenty of real books to read. I got some bottled water
since the electric well pup was down, and could get water to flush the
toilet from an irrigation ditch or the river. It was sort of relaxing to
tell the truth. No internet.
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
| Users: | 546 |
| Nodes: | 16 (2 / 14) |
| Uptime: | 153:33:35 |
| Calls: | 10,383 |
| Files: | 14,054 |
| Messages: | 6,417,840 |