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CHAPTER 23 TECHNICAL SPECIFICATIONS
Power Consumption
The SMARTBOX chassis allows for up to three power supplies to be installed. The power supplies are load-
sharing and provide auto-sensing backup for a failed supply. Each power supply can deliver 600W over the entire
SMARTBOX operating temperature range. The total power consumption for blade configurations that support
typical applications is less than 600W, meaning two power supplies provide 1:1 redundancy. The estimated power
consumption for each blade is provided in the table below:
Power (Watts)
Chassis Assembly 90
Satellite Receiver Blade 30
ATSC Receiver Blade 20
Satellite Receiver Blade
with Transcoder Module
60
QAM16 Blade 25
QAM48 Blade 50
QAM96 Blade 50
NTSC Modulator Blade 70
NOTE: The actual power consumption of SMARTBOX will be roughly 10% greater due to normal power supply
ineciency and the operating temperature of SMARTBOX.
Example power consumption for FTG configuration with 16 QAM outputs and 40 services:
1 Chassis Assembly 1 x 90W = 90W
5 Satellite Receiver Blades (eight services each) 5 x 30W = 150W
1 QAM16 Blade 1 x 25W = 25W
Preliminary SMARTBOX DC power consumption 265W
10% additional power consumption (See Note) .1 X 265W= 27W
Actual Expected SMARTBOX DC power consumption 292W
The 600W maximum power delivery for each power supply is specified for the DC power the supply can deliver
to SMARTBOX. The power numbers in the table above are for DC power consumption.
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