5-18 CHP Max™ Headend Optics Platform Chassis, Controllers and Power Supplies Rev D
DC Power Supply Specifications
Table 5.6 CHP DC Power Supply Specifications
Characteristic Specification
Powering Specifications
CHP-PS/DC1-Q CHP-PS/DC1-SW
Input Voltage –72 to –36V
DC –72 to –36VDC
Input Current Limit, max. 12.0A @ 36VDC 15.0A @ 36VDC
Inrush Current Limit, max. 40A (Note 1) 40A (Note 2)
Power Consumption, max. 250W 475 W
Input Connector 3-pin male conn., mates with power plug
(P/N MT0401)
3-pin male conn., mates with power plug
(P/N MT0401)
Output Voltages and Current 12.0V
DC +0.35/–0.0VDC, 10A
5.0V
DC +0.2/–0.05VDC, 22A
–5.0V
DC +0.05/–0.2VDC, 1.8A
3.5V
DC ± 0.1VDC, 2.2A
12.0V
DC +0.35/–0.0VDC, 24A
5.0V
DC +0.2/–0.05VDC, 31A
–5.0V
DC +0.15/–0.2VDC, 2A
3.5V
DC ± 0.1VDC, 5A
Output Noise Ripple, RMS (at 300 kHz, 10
μF capacitor in shunt with 0.1 μF)
25mV @ 12.0V output
25mV @ 5.0V output
20mV @ –5.0V output
20mV @ 3.5V output
25mV @ 12.0V output
25mV @ 5.0V output
20mV @ –5.0V output
20mV @ 3.5V output
Output Noise Switching Spikes, peak to
peak
100mV @ 12.0V output
100mV @ 5.0V output
60mV @ –5.0V output
60mV @ 3.5V output
100mV @ 12.0V output
100mV @ 5.0V output
60mV @ –5.0V output
60mV @ 3.5V output
Efficiency, min. (Note 3) 65% 85%
Status Interface
CHP-PS/DC1-Q CHP-PS/DC1-SW
Functions Monitored Input and all DC voltages, internal
temperature, fan currents
Input and all DC voltages, internal
temperature, fan currents
Mechanical Specifications
CHP-PS/DC1-Q CHP-PS/DC1-SW
External Dimensions (W x H x D) in (cm) 3.9 x 1.57 x 14.46in (9.91 x 3.99 x 36.73cm) 3.9 x 1.57 x 14.46in (9.91 x 3.99 x 36.73cm)
Weight 2.75lbs (1.24kg) 2.75lbs (1.24kg)
Environmental Specifications
CHP-PS/DC1-Q CHP-PS/DC1-SW
Operational Temperature Range 32 to 122°F (0 to 50°C) 32 to 122°F (0 to 50° C)
Storage Temperature Range –40 to 158°F (–40 to 70°C) –40 to 158°F (–40 to 70°C)
Humidity, noncondensing 10 to 95%, not to exceed 0.024lbs of
water/lb of dry air
10 to 95%, not to exceed 0.024lbs of
water/lb of dry air
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