Do UPSes protect from surges under this scenario?
OK, under a typical scenario, you may have some equipment plugged into a UPS, and when there is an electrical surge, it goes through the UPS's power cord to the UPS and then gets stopped there. So it basically protects everything "behind" the UPS from "outside" surges.
But do UPSes prevent surges that occur "behind" it from damaging other connected equipment? Here's a scenario:
- some equipment is plugged into a UPS
- one of those components is a cable modem. (this is so that the cable modem can still function during a power outage, as the cable line would still be functional.) Let's say that the UPS does not have coax protection, so the coax on the cable modem goes directly into the wall.
If a surge were to occur on the cable line (and this must be possible since some surge protectors and UPSes offer coax protection), then it might go through the cable modem, the cable modem's power cord, and then hit the UPS. Would the UPS stop this surge from harming the other connected equipment?
read more and respond »Posted 5 years ago by void in Cable Modems
