reply to westom
Re: Treadmill start = modem crash (interference) It's true that a UPS tends to have less surge protection capacity (my Back-UPS Pro 1500 has a capacity of 342 joules, my old 1500 was 420 while my 360 electrical power bar is 4320), but a UPS will come with an insurance policy to replace surge-damaged equipment connected to the UPS. Although, some surge protectors (like some of 360 electrical's) also have similar insurance warranty things. Note that using a non-apc powerbar connected to the UPS will void the insurance policy.
If this is a concern, I believe putting a dedicated surge protector between the wall and the UPS might work without voiding the insurance. But really, surges are not the problem in the case at hand, he's getting voltage dips...
Developer: Tomato/MLPPP, Linux/MLPPP, etc »fixppp.org