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76 C120-H007-05EN
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.
z Input voltage variation of a printer depends on the printing mode.
z Some 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:
z UPS 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)
z Warranty term
6.4 Grounding
Grounding should be planned to suit the following:
z Grounding equipment in the computer room
z Grounding other equipment
z Grounding LAN devices
z Grounding-plate method
z Grounding of surge absorbers
For the last, see Chapter 7, "Protection Against Lightning."