SSI America EPS2U User Manual

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 SSI
  
EPS2U Power Supply Design Guide, V2.1 
MTBF 
 
STATUS 
Recommended 
The power supply shall have a minimum MTBF at continuous operation of 1) 50,000 hours at 100% load and 
45 
°C, as calculated by Bellcore RPP, or 2) 100,000 hours demonstrated at 100% load and 50 °C.  
10 
Agency Requirements 
 
STATUS 
Recommended 
The power supply must comply with all regulatory requirements for its intended geographical market.  Depending 
on the chosen market, regulatory requirements may vary.  Although a power supply can be designed for 
worldwide compliance, there may be cost factors that drive different versions of supplies for different 
geographically targeted markets. 
This specification requires that the power supply meet all regulatory requirements for the intended market at the 
time of manufacturing.  Typically this includes: 
•  UL 
•  CSA 
•  A Nordic CENELEC 
•  TUV 
•  VDE 
•  CISPR Class B 
•  FCC Class B 
The power supply, when installed in the system, shall meet immunity requirements specified in EN55024.  
Specific tests are to be EN61000-4-2, -3, -4, -5, -6, -8, -11, EN61000-3-2, -3, and JEIDI MITI standard.  The 
power supply must maintain normal performance within specified limits.  This testing must be completed by the 
system EMI engineer.  Conformance must be designated with the European Union CE Marking.  Specific 
immunity level requirements are left to customer requirements. 
 
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