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CHAPTER 6 Power Supply Facilities

(10)Power rating (for printer connection)

If a printer is connected to a UPS, selecting a UPS whose power capacitance is
sufficient to connect a printer is needed, by taking account of the following
precautions.
zInput voltage variation of a printer depends on the printing mode.
zSome laser printers requires few times higher than their rated power in toner
fixing.

(11)Checking the UPS environmental specifications and the warranty

term

Other precautions and requirements:
zUPS environmental specification
- Input capacity
- Grounding phase in input one-line grounding
- External dimensions
- Mass
- Amount of heat dissipation
- Earthquake-proofing actions
- Noise level
- Input/output terminals (connector)
zWarr ant y te rm
6.4 Grounding
Grounding should be planned to suit the following:
zGrounding equipment in the computer room
zGrounding other equipment
zGrounding LAN devices
zGrounding-plate method
zGrounding of surge absorbers
For the last, see Chapter 7, "Protection Against Lightning."