Scientific Atlanta Power Supply Unit manual Electrical Specifications

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-

6.25 A on each output (150 W output

 

 

cooling)

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

6.7 A (short circuit proof)

 

 

output

 

 

 

 

 

 

 

No derating over entire temperature

Nominal load from 0°C (32°F) up to

 

 

range

45°C (113°F)

 

 

Efficiency

83%

 

 

 

 

 

 

Switching frequency

± 66 kHz (Forward converter)

 

 

 

 

 

 

No load input power

Max. 5 W

 

 

 

 

 

 

Inrush current limitation with NTC

110 V: max. 50 A @ peak line

 

 

resistance

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

Image 36
Contents Dense QAM Array Power Supply Unit Please Read This Entire Guide Dense QAM Array Power Supply Unit Trademark Acknowledgments Publication DisclaimerCopyright Contents Safety Precautions Service Personnel, Users and OperatorsRead and Retain Instructions Precautions Guidelines for UsersGuidelines for Service Personnel Requirements for the Installation SiteGeneral Electrical Shock HazardFire Hazard ESDEMC Warranty and Disclaimer Warranty PeriodStatement DisclaimerClaims Under This Warranty Limitation of LiabilityAbout This Guide Audience ScopeRelated Publications Page Overview This ChapterAbout the Dense QAM Array PSU DrawingFeatures and Benefits Indication LEDsProduct Identification LabelChapter Installation Installing the Dense QAM Array PSU To Install the Dense QAM Array PSU Installing the Dense QAM Array PSU Removing the PSU from the chassis To Remove a Dense QAM Array PSUPage Chapter Customer Information Product Support Obtaining SupportAssistance Centers Support.my@barconet.com Returning Products IntroductionReturning Products Packing and Shipping the Product Returning the Product to BarcoNet Europe or Asia Page Appendix Page Specifications Environment SpecificationsPhysical Specifications Electrical Specifications Glossary Term, Acronym Meaning AbbreviationPage Page Comment Now