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-48 Volt DC Power Requirements
Caution:
Table Top Installation Requirements and Cares
4
IBM 8265: Planning and Site Preparation Guide
To comply with the UL requirements, an 8265 equipped with a -48 V dc power supply
must be installed in a rack or enclosed cabinet. The power cord must be routed
through a raceway up to the -48 volt dc distribution panel.
Connect the -48 volt dc power supply to Safety Extra Low Voltage (SELV) only.
To install an 8265 with -48 Volt DC (295 Watt) power supplies, the DC power source
must provide:
•
Voltage range: -40 Volt to -57 Volt
•
Permanent power for 1 DC supply: 11 Amps
•
Inrush current for 1 DC supply: maximum 60 Amps and 16 Amps within 16 ms. To
accept the inrush current, it is recommended that you use a 100 Amp source to
feed up to four -48 Volt DC power supplies.
Use only the power cord supplied in the -48 Volt DC power supply
shipping box. Only qualified personnel must install the power cord to
the DC power source.
The 8265 weighs approximately 57 kg (125 lb) fully loaded and with the supplied
cable tray (the use of which is optional). Make sure the table or shelf on which the
8265 rests can support at least 170 kg (375 lb). The selected table or shelf must be
less than 2 m (6 ft) from the nearest ac outlet.
Do not install an 8265 with a -48 V dc power supply on a table or shelf.
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