Modem can't handle power flickers - UPS time?

[metalangel]

Power flickers in my neighbourhood are proving very annoying – especially because the first thing to go off is my cable modem. Everything else: router, TV, lights… it all stays on just fine, but BOOM there goes my internet connection.

Is it worth buying a cheap UPS to keep my internet connection going? I’m pretty sick of being booted out of games by something that isn’t even a legit power failure. Do I have any other options?
____________________
Previous: 2002 Honda CB500 (sold), 2007 Suzuki SV650SK6 (crashed), 2005 Yamaha FZ6 Fazer (sold). Currently bikeless
"A faired bike will get you 10x more clunge than a unfaired one." -Marlboro Matt

[dydey90]

Buy a battery pack for £10-£20 that's meant for phones? I have one that outputs 2.1A over usb so it should manage it.
____________________
This post is probably not serious and shouldn't be taken literally.
Past: CBR125,ER6f NINJA 650, ZZR600 Current: VFR750

[bamt]

That's fine if the battery pack can be trickle-charged whilst delivering power to the modem (not all can), and the modem is 5V.

I'd go for the UPS. In fact, I did I used to live somewhere that the power dropped very regularly, a big UPS to power my router (which back then was a PC connecting my ISDN modem to the Ethernet in the house), and a smaller one to keep the DECT phone and PVRs alive.

It's quite nice still having full net access when the rest of the street is in darkness. A small UPS will power a router for ages.

[metalangel]

It's a Thomson DCM476, 12v 1A.

Thinking of this one, it would keep the router and modem going - laptop can take care of itself.

https://www.thesource.ca/estore/product.aspx?language=en-CA&catalog=Online&category=UPS&product=6114019
____________________
Previous: 2002 Honda CB500 (sold), 2007 Suzuki SV650SK6 (crashed), 2005 Yamaha FZ6 Fazer (sold). Currently bikeless
"A faired bike will get you 10x more clunge than a unfaired one." -Marlboro Matt

[UrbanRacer]

You can get a decent APC UPS for about £50-60. at full load it'll give you about 5mins of uptime.

https://www.comms-express.com/products/apc-be400-uk-back-ups-400va

[wots]

I bought a pair of these for my HP Microservers, they were less than this at the time. Software is crap (but that isn't an issue for you), otherwise they are quite good. I got half hour runtime for one server. A modem should easily last an hour.

https://www.ebuyer.com/196277-liebert-psp-500mt-500va-300w-230v-usb-ups-psp500mt3-230u
____________________
Currently: Yamaha DT 125 LC2,Repsol Fireblade, and Bumblebee MSX 125

[prawny1]

can you not wire a voltage smoothing capacitor in parallel after the power jack/ power supply? to deal with any small voltage drop

If your power dips are small enough to not effect the rest of your equipment then I can't see you needing a ups for it just some reserve on the power feed.

You won't need a diode or anything fancy unless you want to eliminate pulsing/ripple, just a capacitor of the correct voltage and adequate capacity wired inside the modem (assuming you have space available).
____________________
hellkat wrote:

Some people are only alive cos its against the law to kill them.

[metalangel]

[Charlie]

Try another 12v 1A converted first? Hopefully a standard barrel connector.
____________________
Past: Honda x8rs, Honda City fly, Honda Hornet 250, Honda VFR750, Yamaha xt600e.
Current: Honda CBR929RR & Yamaha XT660Z Tenere