-RF Conducted
-Voltage Dips and Interruptions
-IEC 61000-4-6
-IEC 61000-4-11
Table 8 –Safety Certification
6.2 AC Input Leakage Current
Input leakage current from line to ground will be less than 3.5mA rms. Measurement will be made at
240 VAC and 60Hz.
7. Redundant Power Supply Function
7.1 Redundancy
The redundant power supply is 1+1=N (400W+400W=400W) function power supply, each one module
is redundancy when any one module was failed. To be redundant each item must be in the Hot swap
power supply module.
7.2 Hot Swap Requirements
The redundant power supply modules shall be hot swappable. Hot swapping a power supply is the
process of inserting and extracting a power supply from an operating. During this process the
output voltage shall remain within the limits specified in Table 7 with the capacitive load specified
Table 9. The Sub-system shall not exceed the maximum inrush current as specified in
section 2.2.
The power supply can be hot swapped by the following methods:
● AC connecting separately to each module. Up to two power supplies may be on a single AC power
source.
Extraction: The AC power will be disconnected from the power supply first and then the power
supply is extracted from the sub-system. This could occur in standby mode or powered on mode.
Insertion: The module is inserted into the cage and then AC power will be connected to the power
supply module.
● For power modules with AC docking at the same time as DC. Extraction: The module is extracted
from the cage and both AC and DC disconnect at the same Time. This could occur in standby or
power on mode. No damage or arcing shall occur to
the DC or AC contacts which could cause
damage. Insertion: The AC and DC connect at the same time as the module is inserted into the
cage. No damage to the connector contacts shall occur. The module may power on or come up
into standby mode.
Many variations of the above are possible. Supplies need to be compatible with these different
variations depending upon the sub-system construction. In general, a failed (off by internal latch or
external control) supply may be removed, then replaced with a good power supply(must use the same
model) , however, hot swap needs to work with operational as well as failed power supplies. The newly
inserted power supply may get turned on by inserting the supply into the system or by system
management recognizing an inserted
supply and explicitly turning it on.
7.3 LED Indicators
There shell be a single bi-color LED. The GREEN LED shall turn ON to indicate that all the power
outputs are available. The Red LED shall turn ON to indicate that the power supply has failed,
