User manual ENHANCE EPS1U V1.1

[. . . ] SSI EPS1U Power Supply Design Guide, V1. 1 EPS1U Power Supply Design Guide A Server System Infrastructure (SSI) Specification For 1U Rack Chassis Power Supplies Version 1. 1 SSI EPS1U Power Supply Design Guide, V1. 1 Disclaimer: THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO WARRANTIES 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 PROMOTERS (Intel Corporation, NEC Corporation, Dell Computer Corporation, Data General a division of EMC Corporation, Compaq Computer Corporation, Silicon Graphics Inc. , and International Business Machines Corporation) DISCLAIM ALL LIABILITY FOR COST OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS OF USE, LOSS OF DATA OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT, INDIRECT, OR SPECIAL DAMAGES, WHETHER UNDER CONTRACT, TORT, WARRANTY OR OTHERWISE, ARISING IN ANY WAY OUT OF USE OR RELIANCE UPON THIS SPECIFICATION OR ANY INFORMATION HEREIN. The Promoters disclaim all liability, including liability for infringement of any proprietary rights, relating to use of information in this specification. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted herein. [. . . ] Fuses should be slow blow type or equivalent to prevent nuisance trips. AC inrush current shall not cause the AC line fuse to blow under any conditions. All protection circuits in the power supply shall not cause the AC fuse to blow unless a component in the power supply has failed. This includes DC output load short conditions. STATUS Optional Some system applications may require a second input fuse in the NEUTRAL side of the AC input. In this case two fuses would be required; one in the LINE side and one in the NEUTRAL side of the AC inlet to the power supply. 5. 7 AC Inrush STATUS Required The power supply must meet inrush requirements for any rated AC voltage, during turn on at any phase of AC voltage, during a single cycle AC dropout condition, during repetitive ON/OFF cycling of AC, and over the specified temperature range (Top). The peak inrush current shall be less than the ratings of its critical components (including input fuse, bulk rectifiers, and surge limiting device). SSI EPS1U Power Supply Design Guide, V1. 1 STATUS Recommended An additional inrush current limit is recommended for some system applications that require multiple systems on a single AC circuit. AC line inrush current shall not exceed 30 A peak for one-quarter of the AC cycle, after which, the input current should be no more than the specified maximum input current from Table 3. 5. 8 AC Line Transient Specification STATUS Recommended AC line transient conditions shall be defined as "sag" and "surge" conditions. Sag conditions (also referred to as "brownout" conditions) will be defined as the AC line voltage dropping below nominal voltage. Surge will be defined as the AC line voltage rising above nominal voltage. The power supply shall meet the requirements under the following AC line sag and surge conditions. Table 4: AC Line Sag Transient Performance Operating AC Voltage Line Frequency Performance Criteria Nominal AC Voltage ranges Nominal AC Voltage ranges Nominal AC Voltage ranges 50/60 Hz 50/60 Hz 50/60 Hz No loss of function or performance No loss of function or performance Loss of function acceptable, selfrecoverable Duration Continuous 0 to 1 AC cycle > 1 AC cycle Sag 10% 100% >10% Duration Continuous 0 to ½ AC cycle Surge 10% 30% Table 5: AC Line Surge Transient Performance Operating AC Voltage Line Frequency Performance Criteria Nominal AC Voltages Mid-point of nominal AC Voltages 50/60 Hz 50/60 Hz No loss of function or performance No loss of function or performance 5. 9 AC Line Fast Transient Specification STATUS Recommended The power supply shall meet 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 must not cause any out-of-regulation conditions, such as overshoot and undershoot, nor must it 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 must meet surge-withstand test conditions under maximum and minimum DC-output load conditions. SSI EPS1U Power Supply Design Guide, V1. 1 6 6. 1 DC Output Specification Connector STATUS Required The power supply uses a blind mating type connector with edge fingers (see Figure 1) to connect the power supply's output voltages and signals to a connector located in the system. The card edge pin assignments are listed in Table 6. Figure 3 shows the card edge layout for the power supply. The connector located in the system is an AMP 1364999-1 or equivalent. Signals that can be defined as low true or high true use the following convention: signal = low true. Reserved pins are reserved for future use. Table 6: Edge Finger Pinout Description -12V PWOK Reserved ACWarning 5VSB Removed pin Reserved Reserved Reserved Reserved 12V2 12V2 12V2 12V1 12V1 12V1 Ground Ground Ground Ground Ground Ground Ground Ground Ground 5V 5V 5V 3. 3V 3. 3V 3. 3V Pin# Pin# 1 62 2 61 3 60 4 59 5 58 6 57 7 56 8 55 9 54 10 53 11 52 Keying notch between positions 11 and 12 12 51 13 50 14 49 15 48 16 47 17 46 18 45 19 44 20 43 21 42 22 41 23 40 24 39 25 38 26 37 27 36 28 35 29 34 30 33 31 32 Description PSON# SDA SCL PSAlert# ReturnS Reserved Reserved 3. 3VS Reserved Reserved 12V2 12V2 12V2 12V1 12V1 12V1 Ground Ground Ground Ground Ground Ground Ground Ground Ground 5V 5V 5V 3. 3V 3. 3V 3. 3V # SSI EPS1U Power Supply Design Guide, V1. 1 All dimensions are in millimeters. Top View of Power Supply PSON# SDA SCL PSAlert# ReturnS Reserved Reserved 3. 3VS Reserved Reserved GROUND Keying Notch 12V2 12V1 1. 6 5V 3. 3V 32 7. 62 MIN 62 1. 27 +/-0. 05 9 spaces @ 2. 54 29. 03 +/-0. 05 21. 59 +/-0. 05 1. 27 6. 35 +/-0. 05 6. 35 +/-0. 05 1. 07 +/-0. 05 51. 89 +/-0. 05 6. 35 +/-0. 05 6. 35 +/-0. 05 0. 38 x 45 2x 1. 57 x 45 1 31 2x 5. 08 MIN PWOK Reserved ACWarning 5VSB Removed pin (NC) Reserved Reserved Reserved Reserved 12V2 12V1 Bottom view of power supply Figure 3: Edge Finger Layout GROUND -12V 3. 3V 5V SSI EPS1U Power Supply Design Guide, V1. 1 6. 2 Grounding STATUS Required The ground of the pins of the power supply wire harness provides the power return path. The wire harness ground pins shall be connected to safety ground (power supply enclosure). 6. 3 Remote Sense STATUS Optional The power supply may have remote sense return (ReturnS) to regulate out ground drops for all output voltages; +3. 3 V, +5 V, +12 V1, +12 V2, -12 V, and 5 VSB. The power supply may use remote sense (3. 3VS) to regulate out drops in the system for the +3. 3 V output. [. . . ] The Write Control (or Write protect) pin should be tied to ReturnS inside the power supply so that information can be written to the EEPROM. 8. 4. 1 FRU Data FRU data shall be stored starting in address location 8000h through 80FFh. The FRU data format shall be compliant with the IPMI specifications. The current version of these specifications is available at http:\\developer. intel. com/design/servers/ipmi/spec. htm. 8. 4. 2 FRU Data Format The information to be contained in the FRU device is shown in the following table. Table 23: FRU Device Information Area Type Common Header Internal Use Area Chassis Info Area Board Info Area Description As defined by the FRU document Not required, do not reserve Not applicable, do not reserve Not applicable, do not reserve 8. 4. 2. 1 Product Info Area As defined by the IPMI FRU document. [. . . ]