Scientific Atlanta Power Supply Unit - Manual (Page 36)

Specifications, Continued
Electrical Specifications
Item Specification
Input voltage range 100 - 120 / 200 - 240 V AC
Output Two non-isolated outputs 12 V DC
Output voltage: 12.25 ±
0.25 V (± 2%)
No adjustments necessary.
Maximum Spec. SMPS (with forced air-
cooling) 6.25 A on each output (150 W output
power)
Maximum Load in application 5.2 A (120 W output power)
Nominal load in application 4.2 A (96 W output power)
Minimal load 0.25 A (to start up the SMPS)
Output current limit for each 12 V
output 6.7 A (short circuit proof)
No derating over entire temperature
range Nominal load from 0°C (32°F) up to
45°C (113°F)
Efficiency 83%
Switching frequency ± 66 kHz (Forward converter)
No load input power Max. 5 W
Inrush current limitation with NTC
resistance 110 V: max. 50 A @ peak line
220 V: max. 100 A @ peak line
Fuse 4 A T (internal fuse size 5 x 20 mm)
© 2002 Scientific-Atlanta, Inc. All rights reserved.
A-2 Technical Specifications 6984278 Rev A