WWW.PHIHONG.COM 275-Watt Power-Over-Ethernet Power Supply PSM275-909 with active Power Factor Correction Features • • • • 12V for Switch plus PoE 8-24 Ports PoE RS232 with Windows GUI EMI Class B • • • • Power Management Full Protection OVP, OTP, OCP, UVP 1U Operate from AC or Single Voltage 48V RPS Source • • VoIP Phone systems Blades • TUV • • Height: 40mm (1.57in) Weight: 1kg (2.5lb.) Applications • • 10/100 Base T Ethernet switches Security Systems Safety Approvals • • cUL/UL CE Mechanical Characteristics • • Length: 197.5mm (7.78in) Width: 105mm (4.13in) Output Specifications Model DC Output Voltage Load (2) Min. Max. Ripple (1) P-P (max) Regulation Line Load ±5% ±2% 50V (per port) 0A 0.35A ≤20KHz 300mVp-p PSM275-909 >20KHz 50mVp-p ±2% ±5% 12V 0.75A 6.25A Note: (1) Noise is measured with resistor load (not as electronic load). The output is decoupled with 10uF bulk electrolytic and 0.1uF ceramic capacitor. Measurement is made with a high impedance probe connected across the decoupling capacitance. Band width limited to 100mHz. (2) The sum of total powered ports cannot exceed 200W. Phihong reserves the right to make changes without further notice. Please consult Phihong USA and visit www.phihong.com for the most up-to-date specifications. PSM275-909 Characteristics INPUT: WWW.PHIHONG.COM Short Circuit Protection No fire, shock hazard or damage to power supply by short circuit. Power supply continues to operate after short circuit is removed. AC Input Voltage Rating 100 to 240VAC AC Input Voltage Range ENVIRONMENTAL: 90 to 264VAC Temperature AC Input Current 4A(RMS) max. for 115VAC/60Hz at max. load 2A(RMS) max. for 230VAC/50Hz at max. load Operation Non-operation 0 to +55°C -20 to +70°C Humidity 5A Operation Non-Operation Leakage Current Altitude AC Input Line Fuse 10 to 95% 10 to 95% Operation Non-Operation 3.5mA max. @ 254VAC 60Hz AC Input Frequency up to 3km (10K feet) up to 12.2km (40K feet) EMC 47-63Hz Conduction: AC Inrush Current 20A(RMS) max. for 115VAC/60Hz at max. load 40A(RMS) max. for 230VAC/50Hz at max. load Isolation Test OUTPUT: Output Input Source FCC Part 15 Class A EN55022 (CISPR22) Class A Radiation: Support customer in passing FCC/CISPR22 Class A for overall EMI rating Input to earth ground—1500VAC or 2200VDC for 1 minute, less than 10mA leakage current Max. Watt (PoE) Max. Watt (12V Switch) 200W 370W 75W 75W AC DC Efficiency Immunity EN50082-1 ESD: EFT/Burst: Line Transient: Voltage Dips Harmonic: EN61000-4-2. Level 4 EN61000-4-4. Level 3 EN61000-4-5. Level 3 EN61000-4-11 EN61000-3-2 80% min. @ 90VAC≤Vin≤264VAC FEATURE: Total Output Power Input AC Connector 275Watts with a min. of 12CFM airflow Molex p/n 09-65-2029 or equivalent Hold-up Time Isolated RPS DC in Connector 20ms Molex p/n 39-31-0120 or equivalent Power Factor Correction Power-Over-Ethernet Output Connector Meet EN61000-3-2 Molex p/n 90325-0018 or equivalent Over Voltage Protection 59.5V max. latching-reset of input voltage required Over Temperature Protection Automatically shut down by over temperature shutdown circuit Block Diagram Dimension Diagram Unit: mm