Grundlegende Informationen.
Ausgangsleistung
301 - 400W
Connection Mode
Parallel Switching Power Supply
Startmodus
Self-excited Switching Power Supply
Spannungsregelung
Frequency Modulation Type
Stromversorgungssystem
Terminal Power Distribution Equipment
Energieübertragung
Einweg-Übertragungs
Bescheinigung
CE, UL, RoHS, ISO, TUV
High Efficiency
Volume Product
Produktbeschreibung
The electrical power system is a kind of middle- high power supply, it can operate normally when inputs 19V—30V. The output rated voltage is - 53.5V and the output rated current is 7A. Two independent -53.5V/5.6A power modules, by the output diode isolation, installs in the 1U high, 19inch width case and through the line to compile 7A to output. It features short-circuit protection, over current protection, output over-voltage protection, over hot protection and so on.. Each module has a alarm signal output. The entire power supply was designed according to safety requirements strictly, which meets the requirements of the information technology equipment safety standard, the products obtain the TUV+CE+UL certifications.
II. Main Specifications
| Output Power | Input Voltage Range | Output Voltage | Output Current Range | Combined Regulation | Ripple &Noise(Peak-to peak)(Fully loaded,limited frequency 20MHz) |
| 374W | 19V-30Vdc | -53.5Vdc | 0—7A | ±2% | 150mV |
III. Quoted Standards
GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:Test methods—Tests A:Cold
GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat
GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products Test Ca:Damp heat, steady state
GB/T 2423.4.1993 Basic environmental testing procedures for electric and electronic products Test Db:Damp heat, cyclic
GB/T 2423.5-1995 Environmental testing for electric and electronic products—Part 2:Test methods —Tests Ea and guidance:Shock
GB/T 2423.6-1995 Environmental testing for electric and electronic products—Part 2:Test methods —Tests Ea and guidance:Bump
GB/T 2423.8-1995 Environmental testing for electric and electronic products—Part 2:Test methods —Tests Ed and guidance:Free drop
GB/T 2423.10-1995 Environmental testing for electric and electronic products—Part 2:Test methods —Tests Fc and guidance:Vibration(Sinusoidal)
GB/T 2423.11-1997 Environmental testing for electric and electronic products—Part 2:Test methods —Tests Fd and guidance:Random vibration wide band—General requirements
GB/T 2423.22-2002 Environmental testing for electric and electronic products—Part 2:Test methods —Tests N:Change of temperature
GB/T 14508-93 Mechanical environmental conditions existing in the cargo transportation by classed highway
EN55022:1998 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement
EN55024:1998 Information technology equipment—Immunity characteristics—Limits and methods of measurement
CEI IEC 61000-4-2 2001 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test
CEI IEC 61000-4-3 2002 Electromagnetic compatibility—Testing and measurement techniques—Radiated, radio frequency, electromagnetic field immunity test
CEI IEC 61000-4-4 1998 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burst immunity test
CEI IEC 61000-4-5 1999 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test
CEI IEC 61000-4-6 2001 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances, induced by radio-frequency fields
CEI IEC 61000-4-8 1993 Electromagnetic compatibility—Testing and measurement techniques—Power frequency magnetic field immunity test
CEI IEC 61000-4-11 1994 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips short interruptions and voltage variations immunity test
CEI IEC 61000-4-29 2000 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips short interruptions and voltage variations on DC input port immunity test
IEC 61000-3-2 2001 Electromagnetic compatibility—Limits for harmonic current emissions (equipment input current≤16A per phase)
IEC 61000-3-3 1994 Electromagnetic compatibility—Limitation of voltage fluctuations and flicker in low voltage supply systems for equipment with rated current≤16A
GB4943-2001 Safety of information technology equipment
YD/T 282-2000 General reliability test methods for communication equipment
GB/T 13722-92 Performance requirements and testing methods for power supplies used in the mobile communication
YD/T 732-95 Methods of measurement for DC-DC converter used in communications
YD/T 731-2002 High Frequency Switch-mode Rectifier for Telecommunication
IV. Environmental Conditions
| No. | Items | Technical Specs | Unit | Remarks |
| 1 | Operating temp | -40—60(Typical 25) | ºC |
|
| 2 | Storage temp. | -40—70(Typical 25) | ºC | |
| 3 | Relative humidity | 10%—95% | | No condensation |
| 4 | Atmosphere pressure | 62—106 | KPa | |
| 5 | Altitude | 0-4000 | m | 0~3000m operate normally with full load; Fall 1ºC per increasing 200m when altitude is over 3000m |
V. Electrical Specifications
| 1. Input characteristics |
| No. | Items | Technical specifications | Unit | Remarks |
| 1.1 | Rated input voltage | 27 | Vdc | |
| 1.2 | Input voltage range | 19—30 | Vdc | |
| 2. Output characteristics |
| No. | Items | Technical specifications | Unit | Remarks |
| 2.1 | Output rated
voltage | -53.5 | Vdc | |
| 2.2 | Output current range | 0—7 | A | |
| 2.3 | Output power | 374 | W | Fan cooling |
| 2.4 | Output efficiency | ≥80% | | Rated input/Rated loaded |
| 2.5 | Source Regulation | ±1% | | |
| 2.6 | Load regulation | ±2% | | |
| 2.7 | Combined regulation | ±2% | | |
| 2.8 | Ripple & Noise | 150 | mVp-p | Fully loaded and limited frequency 20MHz |
| 2.9 | Dynamic Response | Overshoot amplitude | ≤±5% | | Load variety 25%~50%~25% 50%~75%~50% |
| 2.10 | Recovery time | ≤200 | uS |
| 2.11 | Startup time | ≤3 | S | Rated input; Fully loaded output. |
| 2.12 | Turn on/off overshoot | ≤5% | | full voltage load range |
| 2.13 | Output rising time | ≤300 | mS | The output voltage rises from 10% to 90% at rated load. |
| 2.14 | Current share | ≤±7.5% | | |
| 2.15 | Temperature coefficient | ≤±0.02 | %/ºC | |
| 3. Protection characteristics |
| No. | Items | Technical specifications | Unit | Remarks |
| 3.1 | Input under voltage
protection | 16-18 | Vdc | Auto-recoverable |
| 3.2 | Input reverse connection protection | Have | | auto-recovery |
| 3.3 | Over temp protection | Have | ºC | If the temperature is over, alarm light signal will occur. And auto-recovery after the temperature is normal |
| 3.4 | Current Limiting protection | Have | A | Auto-recoverable,total limiting current is the sum of the two single module. |
| 3.5 | Output short circuit protection | Have | | auto-recoverable |
| 3.6 | Output over voltage protection | -56—-60(Typical-58) | Vdc | Locked |
| 3.7 | Flue jammed perfection | Have | | Can operates naturally or over temp protection when 30% was jammed . |
| 3.8 | Fan jammed perfection | Have | | The module operates naturally or appears over temp protection, and recover to natural after the temp is natural. |
| 4. Other characteristics |
| No. | Items | Technical specifications | Remarks |
| 4.1 | Acoustic noise | ≤55dB | |
| 4.2 | Hot swappable | No requirements | |
| 4.3 | Failure separation | If the power supply module is failure, it should be separated reliably | |
| 4.4 | Cooling | Air cooling, air inlet in the left and air outlet in the right | Module having fans inside; There should be the label of scalds prevented at the place with a draught. |
| 4.5 | Maintenance | Maintenance in the front, if any interior module is failure, alarm signal will transmit to background. Single module will be replaced when maintaining. | |
VI. Safety and EMC
| No. | Items | Technical Specifications | Remarks |
| 1 | Dielectric strength | Input—output | 1000Vac/20mA/1min | No flashover & breakdown |
| Input—ground | 500Vac/20mA/1min |
| Output—ground | 500Vac/20mA/1min |
| 2 | Isolation resistance | Input—output | ≥10MΩ@500Vdc | While in common atmosphere pressure,and relative humidity is 90%. |
| Input—ground | ≥10MΩ@500Vdc |
| Output—ground | ≥10MΩ@500Vdc |
| 3 | Earth testing | <0.1Ω | Receiving40A/50Hz AC for 2minutes |
| 4 | EMC
| CE | CLASS B The remainder of 5dB | EN55022 |
| RE | CLASS B The remainder of 5dB | EN55022 |
| SURGE | LEVEL 3 (differential mode 1KV,common mode 2KV)) | Both 27V input and -53.5Voutput need meet EN61000-4-5 (Criterion B). |
| EFT/B | LEVEL 3 | Both 27V input and -53.5Voutput need meet EN61000-4-4 (Criterion B) |
| DIP | Please see the annex table of DIP, short interruptions and voltage variations | |
| ESD | LEVEL 3 | EN61000-4-2 (Criterion B) |
| CS | LEVEL 3 | IEC61000-4-6 (Criterion A) |
| RS | LEVEL 3 | IEC61000-4-3 (Criterion A) |
Voltage depreciation requirements
| Testing item | Testing level(%Ut) | Duration(secs) | Criterion |
| Voltage depreciation | 70 | 0.001 | B |
| 0.003 | B |
| 0.01 | B |
| 0.03 | B |
| 0.1 | B |
| 0.3 | B |
| 1 | B |
| 40 | 0.001 | B |
| 0.003 | B |
| 0.01 | B |
| 0.03 | B |
| 0.1 | B |
| 0.3 | B |
| 1 | B |
Short interruption requirements
| Testing item | Testing level(%Ut) | Duration(secs) | Criterion | Testing item |
| Short interruptions | High impedance | 0 | 0.001 | B |
| 0.003 | B |
| 0.01 | B |
| 0.03 | B |
| 0.1 | B |
| 0.3 | B |
| 1 | B |
| Low impedance | 0 | 0.001 | B |
| 0.003 | B |
| 0.01 | B |
| 0.03 | B |
| 0.1 | B |
| 0.3 | B |
| 1 | B |
voltage variation requirements
| Testing item | Testing level(%Ut) | Duration(secs) | Criterion |
| voltage variations | 80 | 0.1 | A |
| 0.3 | A |
| 1 | A |
| 3 | A |
| 10 | A |
| 120 | 0.1 | A |
| 0.3 | A |
| 1 | A |
| 3 | A |
| 10 | A |
Capability criterion :Criterion A--The performance is normal in the stated technical requirements range;Criterion B--Performance is degradation or lose for a while, but can auto-recovery.
VII. Monitoring, warning function & interface
| No. | Items | Requirements | Remark |
| 1 | Output abnormal alarm | When the power output is failure, such as over temperature protection, no output and so on. Alarm signal will occur, abnormity indicator on the panel will light (Red). | There is a green module indicator (RUN) and Standby indicator on the panel; Abnormity indicator(ALM) will not light when the Standby switch is OFF. |
| 2 | Monitoring interface | 2Pin socket, with snap close, twisted-pair, alarm signal relay contact output. | If any module is failure, alarm signal will transmit to back ground. Single module will be replaced when maintaining.
On: normal; Off: failure |
VIII. Reliability environmental requirements
| No. | Items | Requirements | Remark |
| 1 | High temperature operation | 60 ± 2ºC rated loaded24h | (1)Turn on/off;(2)Combined regulation;(3)Noise voltage |
| 2 | Low temperature operation | -40 ± 3ºCrated loaded 24h | (1)Turn on/off;(2)Combined regulation;(3)Noise voltage |
| 3 | High temperature storage | 70 ± 2ºC,24h | Various criterion |
| 4 | Low temperature storage | -40 ± 3ºC,24h | Various criterion |
| 5 | Alternate humidity and heat | 90%,48h | Various criterion should be test after storage |
| 6 | Vibration(Sine) | 5~100Hz,10m/s2,
Swept speed:0.1oct/min
Three axes vibration
Swept endure: each axes 90min | (1)Component
(2)Surface
(3)Various criterion |
| 7 | Shock | Impulse contact time 6ms ;
Acceleration 250 m/s2 ;
Six surfaces,each direction impact for 500 times | (1)Component
(2)Surface
(3)Various criterion |
| 8 | Dampproof | Damp proof | Meet the GB2423.9-89 requirement |
| 9 | Mildew proof | Mildew proof | Meet the GB/T 13543 requirement |
| 10 | Corrosion proof | Corrosion proof | With Huawei white sandy texture |
IX. Mechanical Characteristics& Interface Definition
1.Outline dimension length×width×height =436×244×43.6(unit:mm)
2,Interface terminal
| No. | Definition | Parameter | Remark |
| 1 | Pilot lamp | The power supply system has 3×2 entries indicator. Single module indicator:Round, number: 3pcs; diameter:Φ3,
1. Power abnormity indicator(red): The indicator will light when there is a protection or failure.
2. Standby indicator(yellow)
3. Power indicator(green): The indicator will light when 27V power input to the module. | There are 6pcs indicator On front panel.The indicator is not protrusion on the panel. When the power input, the green indicator will light and the module begin to operate.If the output of any interior module is abnormity, the red indicator will light. |
| 2 | +27Vpower supply input terminal type and length | Type:DA-2PL1SL-2Dlis,3Pin,Huafeng | The internal two module inputs solely. |
| 3 | -53.5V output terminal type and length | Please see the explanation of output connector. | |
| 4 | Alarm output connector | 2Pin socket, with the lock, each module 1pcs (twisted pair). | Relay contact output
Abnormity: Off
Normal: On |
| 5 | Lay position | Plane, uprightness, hangs on the wall | |
| 6 | Ground connecting type | Earthing by the M4 screw on the front panel. | |
| 7 | +27V input switch | The single module input has an input switch. | 0: Off; 1: On |
| 8 | The colour of surface | Huawei white sandy texture | |
| 9 | The requirements Of case material | Alumina,good conduction | |
| 10 | Gross weight | <5kg | |
Output terminal definition:
1. The power system needs six outputs and only one alarm single output.
2. Connection requirement: Connection on the front panel, direct inserts after peel off the skin of the wire, and then screw down the wire.
X. Package, transportation &storage Reliability Requirements
1. Package
There are product name, model, making of manufacturer, safety approval, manufacturing date on the package box, and manual of specifications and packing list in the package box.
2. Transportation
Suiting for transportation by truck, ship, and plane. The products should be shielded by tent from sunshine, and loaded and unloaded carefully.
3. Storage
Products should be stored in package box when it is not used. And warehouse temperature should be -10—40ºC, and relative humidity≤80%,In the warehouse, there should not be harmful gas, inflammable, explosive products, and corrosive chemical products, and strong mechanical vibration, shock and strong magnetic field affection. The package box should be over ground at least 20cm height, and 50cm away from wall, thermal source, and vent. Under this requirement, product has 2 years of storage period, and should be rechecked if over 2 years.
XI. Reliability Requirements
1.MTBF≥25Khours(Environmental temperature is 25ºC,rated input and fully loaded output,forecast by Bell core stress method)
2. Lifespan:10 years
XII. Attentions
1.The input and output of this power supply is the dangerous voltage,please do not touch with hands while operating.
2.This power supply must be supplied the power by the reinforced insulation power source or battery
