Power And Electrical Wiring Requirements; Ac Power Supply; Dc Power Supply; Power Requirements - IBM Nways 8265 Product Description

Power and Electrical Wiring Requirements

AC Power Supply

DC Power Supply

Power Requirements

48
IBM 8250, 8260, and 8285: Planning and Site Preparation Guide
A dedicated 15 ampere circuit (or an equivalent method of providing this current) is
recommended to supply power to the switch when operated at voltage between 90
and 130 volts ac. This will ensure adequate power for a fully loaded switch
configuration. This circuit must be grounded to a safety protected ground (earth),
NOT to a neutral ground that carries current back to the transformer. Do not use an
electrical conduit pipe as your only means of grounding the switch. There must be
four ac power outlets available within 2 m (6 ft) of the 8265 in the event that there are
four power supplies installed in the switch.
To comply with the UL requirements, an 8265 equipped with a -48 Vdc power supply
must be installed in a rack or enclosed cabinet. Do not installed an 8265 with a -48
Vdc power supply on a table or shelf. The power cord must be routed through a
raceway up to the -48 Vdc distribution panel.
Connect the -48 Vdc power supply to Safety Extra Low Voltage only.
The power source (wall outlet or receptacle) at the place you have chosen for the
8265 must provide the electrical specifications shown in Table 11 through Table 14 on
page 49 to ensure that the 8265 will not be damaged and will work satisfactorily.

Table 11. 8265 Operating Conditions

Phase
Frequency
110-Volt range
220-Volt range
-48 Vdc

Table 12. Maximum Inrush Current per 415 W Power Supply

Model
8265-17S

Table 13. Site Power Requirement Recommendations

Model
8265-17S
Single phase + earth
50 or 60 Hz ± 2%
90 V ac (minimum), 132 V ac (maximum)
180 V ac (minimum), 256 V ac (maximum)
-40 Vdc (minimum), -57 Vdc (maximum)
20 A
90-256 V (47/63 Hz)
2.2 kVA
-48 Vdc
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