11990-704/705/706/707 (2-Slot ATCA Shelf)
Power
18
R1.2, March 2018
8.1.1 AC PEM Power Distribution
Power distribution within the Shelf originates from each AC PEM and powers all the blades,
the Shelf Managers, the Fan Trays and the SAP. For maximum fault tolerance, the two AC
PEMs should be independently powered by a separate Feed A and Feed B.
A single AC PEM is capable of supplying the 450 watts of power to each blade slot and the
necessary power for the PEMs, Fan Trays, and Shelf Managers.
If two AC PEMs are in service, each AC PEM is hot-swappable after removing the power cables
from the AC PEM.
Figure 12: Power Distribution
Table 8: Basic Specifications for the PSUs
12713807
230 V Operation
Input Voltage nominal
230 VAC
Input Voltage Range max.
180 VAC - 265 VAC
Input Frequency Range
47 Hz - 63 Hz
Output Voltage
48 VDC
Output Current
25 A
Output Power
1200 W with 48 VDC Output Voltage
115 V Operation
Input Voltage nominal
115 VAC
Input Voltage Range max.
90 VAC - 180 VAC
Input Frequency Range
47 Hz - 63 Hz
Output Voltage
48 VDC
Output Current
20,8 A
Output Power
1000 W with 48 VDC Output Voltage
See GE Energy Power CAR1248 Data Sheet for detailed information.
