Technical Product Specification

Power Sub-system Intel® Server Chassis SC5650 TPS

Revision 1.2

Intel order number E39531-004

2.4.5.3.3 Radiated Immunity

The power supply complies with the limits defined in EN55024: 1998 using the IEC 61000-4-

3:1995 test standard and performance criteria A defined in Annex B of CISPR 24.

2.4.5.3.4 Surge Immunity

The power supply is tested with the system for immunity to AC Ringwave and AC Unidirectional

wave, both up to 2kV, per EN 55024:1998, EN 61000-4-5:1995 and ANSI C62.45: 1992.

The pass criteria include: no unsafe operation is allowed under any condition; all power supply

output voltage levels must stay within proper specification levels; no change in operating state

or loss of data during and after the test profile; no component damage under any condition.

The power supply complies with the limits defined in EN55024: 1998 using the IEC 61000-4-

5:1995 test standard and performance criteria B defined in Annex B of CISPR 24.

2.4.5.4 AC Line Fast Transient (EFT) Specification

The power supply meets the EN61000-4-5 directive and any additional requirements in

IEC1000-4-5: 1995 and the Level 3 requirements for surge-withstand capability, with the

following conditions and exceptions:

 These input transients do not cause any out-of-regulation conditions, such as overshoot

and undershoot, nor do they cause any nuisance trips of any of the power supply

protection circuits.

 The surge-withstand test must not produce damage to the power supply.

 The supply meets surge-withstand conditions under maximum and minimum DC-output

load conditions.

2.4.5.5 AC Line Dropout / Holdup

Table 74. AC Line Dropout / Holdup

Output Wattage Loading Holdup time

1000W 75% 20 ms

An AC line dropout is defined to be when the AC input drops to 0VAC at any phase of the AC

line for any length of time. During an AC dropout, the power supply meets dynamic voltage

regulation requirements. An AC line dropout of any duration does not cause any tripping of

control signals or protection circuits. If the AC dropout lasts longer than the hold-up time, the

power recovers and meets all turn-on requirements. The power supply meets the AC dropout

requirement over rated AC voltages and frequencies. A dropout of the AC line for any duration

does not cause damage to the power supply.