SSI America ERP2U manuale d’uso

SSI ERP2U (Entry Redundant Power 2U) Power Supply Design Guide A Server System Infrastructure (SSI) Specification For 2U Rack Chassis Power Supplies Version 2.31[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 2 - Revision History Orig./Rev. Description of Changes 2.0 Post design guide 2.2 Added higher power levels up to 800W. Added 350mm depth. Removed lower power levels. Added standby fan operation. Added option for tighter 12V regulation. Added 12V4. Add new SSI efficiency requirements (reco mmended level &[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 3 - Disclaimer: THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO WARRA NTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE. WITHOUT LIMITATION, THE PR OMOTE[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 4 - Contents 1 Purpose........................................................................................................................ .................................. 7 2 Conceptual Overview .......................................................................................................[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 5 - 8.4 Power Supply Managem ent Interface .............................................................................................. ......... 31 8.5 Field Replacement Un it (FRU) Signals ........................................................................................... .......... 32 8.5.1 [...]

SSI ERP2U Power Supply Design Guide, V2.31 - 6 - Table 34: FRU Device Product Inform ation Area ................................................................................. .................. 33 Table 35: LE D Indica tors ...................................................................................................... ....................[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 7 - 1 2 Purpose This 2U Rack Power Supply Desig n Guide defines a common re dundant power sub -sy stem used in 2U rack mount servers. The power sub-system is made up of a cage and h ot swa p redundant powe r module s. This Design Guide covers the m ech anical and electrical re quirem ents of this power s[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 8 - 3 Definitions/T erms/Acronyms Required The status given to items within this design guide, which are required to meet SSI guidelines and a large ma jority of system appl ications. Recommended The status given to items within this design guide which are not requ ired to meet SSI guidelines, however, a[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 9 - 4 Mechanical Overview STATUS Required (Optional) The ERP2U is a power sub-sy stem made up of a cage and redundant, hot swappable power supply modules. A mechanical drawing of the cag e is shown below in Figure 1 . Two depths are defined to the cage; 400m m and 350mm. This cage is intended to be mount[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 10 - 4.1 Acoustic Requirements STATUS Recommended It is recommended the power su pplie s have a variable speed fan b ase d on temperature and loading co nditions. There are three different acoustic sound powe r levels defined at different ambient temperatures and loadin g conditions. Table 1 Recommended [...]

SSI ERP2U Power Supply Design Guide, V2.31 - 11 - The power supply shall ope rate within all specified limits over the T op temperatu re rang e. All airflow shall pass through the power supply and not over t he ex terior surfaces of the power supply . Table 2: Thermal Requirements ITEM DESCRIPTION MIN MAX UNITS T op Operating temperature range. 0 5[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 12 - Table 3: AC Input Rating PA RAME TE R MIN RA TED MA X Voltage (110) 90 V rms 100-127 V rm s 140 V rms Voltage (220) 180 V rms 200-240 V rms 264 V rms Frequency 47 Hz 63 Hz 5.4 Input Under Voltage STATUS Required The power supply shall con t ain prote ction circuitry such that application of an input[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 13 - AC line shall not cause damage to the powe r su pply. In the case of redundant AC inputs, the AC line dropout may occur on either or both AC inlet. 5.7 AC Line Fuse STATUS Required The power supply shall incorpo rate one input fuse on the LINE side for input over-cur rent protection to prevent damag[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 14 - recoverable Table 6: AC Line Surge Transient Performance AC Line Surge Duration Surge Operating AC Voltage Line Frequenc y Performance Criteria Continuous 10% Nominal AC Voltages 50/ 60 Hz No loss of func tion or performance 0 to ½ AC cycl e 30% Mid-point of nominal AC Voltages 50/60 Hz No loss of [...]

SSI ERP2U Power Supply Design Guide, V2.31 - 15 - 6 DC Output Specification These are the output requirements for the po we r supply assembly including cage and module . 6.1 Output Connectors The power supply distribution boa rd shall have one of the two following output connector and wire harne ss configurations, depending upon the type of 12V rai[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 16 - If 240VA limiting is not a requirement for the power supply than all +12V outputs are common and ma y have the same wire color (yellow) . 6.1.2 +12V4 Baseboard Power Connector STATUS Required for 700W, 750W and 800W p o w er levels Systems that require more then 16A of +12V current to the basebo ard[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 17 - 2. If 240VA limiting is not a requirement for the power s upply than all +12V outputs are common and ma y have the same wire c olo r. 6.1.5 Serial ATA Power Connector STATUS Optional This is a required conn ecto r for systems with serial AT A devices. The detailed requirements for the serial ATA con[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 18 - 1 SMBus Clock White/Green Stripe 2 SMBus Data White/Yellow Stripe 3 SMBAlert 4 ReturnS Black/White Stripe 5 3.3RS Orange/White Stripe 6.2 Grounding STATUS Required The ground of the pins of the power assembly wire h arn es s provid es the power return path. The wire ha rness ground pins shall be con[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 19 - +12V1 0 A 16 A 18 A +12V2 0 A 16 A 18 A +12V3 0.9 A 14 A +12V4 0.1 A 8 A 13 A -12 V 0 A 0.5 A +5 VSB 0.1 A 2.0 A 1. Maximum continuous total DC output power should not exceed 550 W. 2. Maximum continuous combined load on +3.3 VD C and +5 VDC outputs shall not exceed 140 W. 3. Maximum Peak total DC o[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 20 - 4. Peak power and current loading shall be supported for a minimum of 10 second. 5. Maximum combined current for the 12 V outputs shall be 45 A. 6. Maximum 12V combined peak current shall be 54 A. 7. The 3.3V and 5V may be supply by the mod ule or DC/DC converters powered from +12V in the cage. Tabl[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 21 - Table 18: 800 W Load Ratings Voltage Minimum Continuous Maximum Continuou s Peak +3.3 V 7 0.8 A 24 A +5 V 7 0.5 A 30 A +12V1 0 A 16 A 18 A +12V2 0 A 16 A 18 A +12V3 0.9 A 16 A 18 A +12V4 0.1 A 16 A 18 A -12 V 0 A 0.5 A +5 VSB 0.1 A 3.0 A 3.5 A 1. Maximum continuous total DC output power should not e[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 22 - Table 19: Voltage Regulation Limits Parameter MIN NOM MAX Units Tolerance +3.3 V +3.14 +3.30 +3.47 V rm s +/-5% +5 V +4.75 +5.00 +5.25 V rms +/-5% +12V1,2,3,4 +11. 40 +12.00 +12.60 V rms +/-5% -12 V -10.80 -12.20 -13.20 V rms +/-10% +5 VSB +4.75 +5.00 +5.25 V rms +/-5% STATUS Optional Some system ap[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 23 - Required The power supply shall be stable a nd meet all requirem ents, except dynamic loa ding requirements, with the following capacitive loading ranges. Note: Up to 10,000 μ F of the +12V capacitive loading may be on the +12V1 out put. Table 22: Capacitve Loading Conditions Output MIN MAX Units +[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 24 - 6.9 Redundancy The power sub-system ma y have different levels of redundancy dependi ng upon the availability requirements of the system. The Required, Reco mmen ded, and Optional items are broken down here. To be redunda nt each item must be in the hot swap power supply module. STATUS Required The [...]

SSI ERP2U Power Supply Design Guide, V2.31 - 25 - may be removed, then replaced with a g ood po wer supply, however, hot swap needs to work with ope ratio nal as well as failed power supplies. The newl y inserted power su pply may get turned on by inserting the sup ply into the system or by system management recognizing an inserted su pply and expl[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 26 - Table 25: Turn On/Off Timing Item Description MIN MAX UNITS T sb_on_delay Delay from AC being applied to 5 VSB being within regulation. 1500 ms T ac_on_delay Delay from AC being applied to all output volt ages being within regulation. 2500 ms T vout_holdup Time all output voltages stay within regula[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 27 - Figure 4: Turn On/Off Timing AC Input Vout PWOK 5VSB N# PSO T sb_on_dela y T AC_on_dela y T pwok_on T vout_holdup T pwok_holdup T pson_on_dela y T sb o n de l ay T pwok_on T pwok_off T pwok _off T pwok_low T pson_pwok T sb_vout AC turn on/off cycle PSON turn on/off cycle Tsb_holdup[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 28 - 7 Protection Circuits STATUS Required Protection circuits inside the power supply shall cause only the power supply’s m ain outputs to shutdown. If the power supply latches off due to a protection circuit tri pping, an AC cycle OFF for 15 s and a PSON # cycle H IGH for 1 s must be able to reset th[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 29 - 7.3 Over Voltage Protection STATUS Required The power supply over voltage protection shall be loca lly sensed in the hot swa p modules. The power supply shall shutdown and latch off after an over voltage conditi on occurs. This latch shall be cleared by toggling the PSON # signal or by an AC power i[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 30 - 8 Control and Indicator Functions The following sections define the input and output si gnals from the power supply. Signals that can be defined as low true use the following co nventio n: signal # = low true 8.1 PSON# STATUS Required The PSON # signal is required to remotely turn on/off the power s[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 31 - 8.2 PWOK (Power OK) STATUS Required PWOK is a power OK signal and will be pulled HIGH by the pow er supply to indicate that all the outputs are within the regulation limits of the power supply. When any output voltag e falls belo w regulation limits or when AC powe r has been removed for a time suff[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 32 - PDB addressing A0/A1 0/0 0/1 1/0 1/1 Power supply PSMI device B0h B2h B4h B6h 8.5 Field Replacement Un it (FRU) Signals STATUS Optional The FRU device in the power supply shall derive its power off of the 5VSB out put on the system side of the or’ing device and grounded to ReturnS. The Write Contr[...]

SSI ERP2U Power Supply Design Guide, V2.31 - 33 - FRU File ID {Not required} PAD Bytes {Added as necessary to allo w for 8-byte offset to next area} 8.5.2.2 MultiRecord Area Implement as defined by the IPMI FRU document. The follo wing record types sh all be used on this power sup ply: • Power Supply Information (Record Type 0x00) • DC Output ([...]

SSI ERP2U Power Supply Design Guide, V2.31 - 34 - available. The AMBER LED shall turn ON to indicate t hat the power supply has failed, shutdown due to over current, or shutdown due to over temperature. Refer to Table 35: LED Indicators for conditions of the LED(s). Table 34: LED Indicators POWER SUPPLY CONDITION Power Supply LED(s) AMBER GREEN No [...]

SSI ERP2U Power Supply Design Guide, V2.31 - 35 - 9 MTBF STATUS Recommended The power module shall have a minimu m MTBF at continuo us 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 5 0 ° C. The power cage shall have a minimum MTBF at continuous op erat ion o[...]