IBM 2109 Service Guide - Page 105

Power supply specifications

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Power supply specifications The 2109 Model S16 Switch has a universal power supply capable of functioning worldwide without voltage jumpers or switches. The supply is autoranging in terms of accommodating input voltages and line frequencies. A semi-custom switching power supply, that is repackaged for the requirements of the switch enclosure architecture, is used. The power supply meets the requirements shown in Table 26. Table 26. Power supply requirements Specifications Value Total power 155 Watts Input voltage 85 - 265 V ac Input line frequency 47 - 63 Hz Inrush current 10 amps peak, > 300 µsec for a hot or cold start Harmonic distortion Active power factor correction per IEC1000-3-2 Input line protection Fused in both hot and neutral lines Maximum dimensions Width 90 mm (3.5 in.), Height 38 mm (1.5 in.), Length 28 mm (11 in.) Redundancy Dual supplies - Hot pluggable BTU rating 155 Watts x 3.412 BTU per hour per watts = 529 BTU per hour The power supply has a modular design that plugs directly into the enclosure through the front panel, mating to an internal blind-mate connector. The switch provides facilities to support a dual redundant power supply configuration in which the supplies are hot-swappable. An integral on/off switch, input filter, and power indicator are provided in the power supply. Appendix A. Specifications 89

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Power supply specifications
The 2109 Model S16 Switch has a universal power supply capable of functioning
worldwide without voltage jumpers or switches. The supply is autoranging in terms
of accommodating input voltages and line frequencies. A semi-custom switching
power supply, that is repackaged for the requirements of the switch enclosure
architecture, is used.
The power supply meets the requirements shown in Table 26.
Table 26. Power supply requirements
Specifications
Value
Total power
155 Watts
Input voltage
85 - 265 V ac
Input line frequency
47 - 63 Hz
Inrush current
10 amps peak, > 300 μsec for a hot or cold start
Harmonic distortion
Active power factor correction per IEC1000-3-2
Input line protection
Fused in both hot and neutral lines
Maximum dimensions
Width 90 mm (3.5 in.), Height 38 mm (1.5 in.), Length 28 mm
(11 in.)
Redundancy
Dual supplies - Hot pluggable
BTU rating
155 Watts x 3.412 BTU per hour per watts = 529 BTU per hour
The power supply has a modular design that plugs directly into the enclosure
through the front panel, mating to an internal blind-mate connector. The switch
provides facilities to support a dual redundant power supply configuration in which
the supplies are hot-swappable.
An integral on/off switch, input filter, and power indicator are provided in the power
supply.
Appendix A. Specifications
89