|reply to RickStep |
Re: Treadmill start = modem crash (interference)
Ive listed below 3 publications from American Power Conversion. The publications cover much of what has been discussed here.
White Paper 1 - UPS types are defined, practical applications of each are discussed, and advantages and disadvantages are listed. This publication at revision 7 probably says a lot about the changes in UPS designs over the years.
White Paper 15 - This white paper helps explain the differences between watts and VA and explains how the terms are correctly and incorrectly used in specifying power protection equipment.
White Paper 18 - Describes the most common types of power disturbances and what can cause them.
The complete white paper list is here. Most other white papers have to do with large systems in data centres.