PSM275-909 Datasheet, PDF (1/3 Pages) Phihong USA Inc. – 275-Watt Power-Over-Ethernet Power Supply

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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
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
• 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.)
Model
DC Output
Load (2)
Ripple (1)
Regulation
Voltage
Min. Max.
P-P (max)
Line
Load
PSM275-909
50V (per port)
12V
0A
0.75A
0.35A
6.25A
≤20KHz 300mVp-p
>20KHz 50mVp-p
±2%
±2%
±5%
±5%
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.