Technical data

7-4
Power Supplies
7
Dual 9-, 12-, and 20-Slot Power Supply
DC power for the backplane, fans, and drives is furnished by a
UL/CSA/VDE-approved 700W autoranging power supply
module. Both -48Vdc- and 115/230Vac-compatible versions are
available, each providing +5 Vdc, +12 Vdc, and -12 Vdc to the
system (with power factor correction in the AC version). The power
supply modules are installed below the VMEmodule card cage.
Each has its own set of fans to supply forced-air cooling separate
from the VMEmodules and mass storage drives.
The power supply modules are not adjustable when they are
installed in the system. If you suspect that a power supply may be
out of adjustment, replace it.
Table 7-2. Power Supply Specifications
Characteristics Specifications
Physical characteristics
Width
Height
Length
7.8 inches (198mm)
5.0 inches (127mm)
10.6 inches (269mm)
Temperature
Operating
Storage and transit
0° to 50° C (32° to 122° F)
-55° to 85°C (-67° to 185° F)
Relative humidity 0% to 90% noncondensing
Maximum altitude
Operating
Shipping
10,000 feet
30,000 feet
Power ratings
Input voltage (DC)
Input voltage (AC)
Output voltages
Output power
-36Vdc to -72Vdc
90-132Vac, 180-264Vac, 47-63Hz
+5Vdc @ 100A
+12Vdc @ 20A (27A peak)
-12Vdc @ 10A
700W maximum (total from all
outputs)