76 C120-H007-08EN
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.
Input voltage variation of a printer depends on the printing mode.
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:
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)
Warranty term
6.4 Grounding
Grounding should be planned to suit the following:
Grounding equipment in the computer room
Grounding other equipment
Grounding LAN devices
Grounding-plate method
Grounding of surge absorbers
For the last, see Chapter 7, "Protection Against Lightning."