Switching Power
It is the power off to save energy?
I heard that disable certain devices over relatively short periods can actually use more energy at the end due to some sort of push to restore to new. Is this true and does vary between different devices. (correct answers only please:)
As for his TV out of the night (instead of leaving it on standby), save energy, as well as PC. However, just put out by a few minutes use more energy to start up again you have earned by turning them off. As the lights go out, fluorescent tubes make it harder to start running, but if you can leave the light off for more than (approx) 10 minutes, would save energy. There are few industrial lamps that require a relatively large amount of power start (such as sodium incandescent), but once it warms up and running, they are really effective.
AC / DC Adapter – Taiwan Switching Power Supply Manufacturer
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Pyramid PSV200 HeavyDuty 20Amp Switching DC Power Supply $52.62 Lighted On/off Switch Overheating Protection Cooling & Fan Control Red/black Terminal Posts Outputs: 13.8v Dc @ Up To 20 Amps Continuous Dim: 2.08″h X 7.28″w X 7.48″d… |
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Pyramid PSV40 Fully Regulated Low Ripple 3Amp Switching DC Power Supply $73.99 Lighted On/off Switch Overheating Protection Convenient Cigarette Lighter Plug Powers Anything That Will Run Off A 12v Car Cigarette Lighter Red/black Terminal Posts Outputs: 13.8v Dc @ Up To 3 Amps Continuous Dim: 1.93″h X 5.32″w X 5.12″d… |
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Mastech Dual DC Regulated Power Supply 0-50 V @ 0-5a $399.00 For sale is a brand new lab grade DC regulated power supply from Mastech, Model number HY5005-2. This high quality power supply has two outputs that are continously adjustable at 0-50V DC and 0-5A. What’s more, the two outputs can be used either in independent, series or parallel mode, providing either two independent outputs, or one output with twice the voltage or twice the current output, up to… |
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Smart Strip LCG5 Energy Saving Power Strip with Auto-Switching Technology and Modem/Coaxial Surge Protection $28.09 With patented auto-switching technology that saves you money on electrical bills, the Smart Strip LCG5 Energy Saving Power Strip features 10 outlets that work in sync to efficiently power your electrical devices. Ideal for coaxial and phone lines, computer systems and home entertainment centers, this unique energy-saving power strip automatically switches devices on and off and uses less than one … |
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30 Watt LED Power Suppply Driver Transformer 120 to 12 Volt DC Output, 3207 $25.00 Light emitting diodes (LEDs) are low-voltage light sources that require a constant DC voltage or current to operate optimally. Because they operate on a low-voltage DC power supply, they easily adapt to different power supplies, have longer standby power, and are safer. LEDs require a device that can convert incoming AC power to the proper DC voltage and regulate the current that flows through the… |
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Roman Holiday (Special Collector’s Edition) $3.35 Maybe it doesn’t quite live up to its sterling reputation, and maybe the leading man and director were slightly miscast. But who cares? Roman Holiday is the film that brought Audrey Hepburn to prominence, and the world movie audience went weak at the knees. The endlessly charming Hepburn had her first starring role in this sweet romance, playing a European princess on an official tour through Rome… |
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Roman Holiday – The Centennial Collection (Mastered in High Definition) $9.78 Maybe it doesn’t quite live up to its sterling reputation, and maybe the leading man and director were slightly miscast. But who cares? Roman Holiday is the film that brought Audrey Hepburn to prominence, and the world movie audience went weak at the knees. The endlessly charming Hepburn had her first starring role in this sweet romance, playing a European princess on an official tour through Rome… |
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Kim $12.25 A British orphan disguised as a Hindu combines forces with the dashing horse-trader Red Beard to thwart enemy forces rising against England in 19th century India.Genre: Feature Film-Action/AdventureRating: GRelease Date: 26-AUG-2003Media Type: DVD… |
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Tripp Lite APS2012 2000W 12V DC to AC Inverter with Automatic Line-to-Battery 100/25-Amp Charger $569.00 pTripp Lites APS2012 DC-to-AC inverter with automatic line-to-battery transfer and integrated charging system serves as an extended run UPS, a standalone power source or an automotive inverter. Supplies up to 2000 watts of continuous 120V AC power from any 12V battery or automotive DC source. OverPower TM inverter output feature temporarily provides up to 150% of the continuous output for 1-60 min… |
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Switching Power Adapter Fits Dell AX510 / AX510PA / AS501 / AS501PA Sound Bar Speakers LCD Flat Panel Speaker PA DSA-15P-12US +12V 1A $12.49 Switching Power Adapter Fits Dell AX510 / AX510PA / AS501 / AS501PA Sound Bar Speakers LCD Flat Panel Speaker PA DSA-15P-12US +12V 1A… |
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Switching Power Supply Design $85.45 Switching Power Supply Design |
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Switching Equipment for Power Control (1921) $33.8 Switching Equipment for Power Control (1921) |
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Demystifying Switching Power Supplies $41.17 This book is a crash course in the fundamental theory, concepts, and terminology of switching power supplies. It is designed to quickly prepare engineers to make key decisions about power supplies for their projects. Intended for readers who need to quickly understand the key points of switching power supplies, this book covers the 20% of the topic that engineers use, 80% of the time. Unlike existing switching power supply books that deal strictly with design issues, this book also recognizes the growing importance of off-the-shelf commercial switching power supplies, giving readers the background necessary to select the right commercial supply. This book covers the core essentials of power supply theory and design while keeping mathematics to the absolute minimum necessary. Special attention is given to the selection of appropriate components, such as inductors and transformers, to ensure safe and reliable operation. Engineers, whose main design responsibilities are in other areas, will better understand the strengths and weaknesses of switching power supplies and whether such supplies are appropriate for their projects. They will be able to give more meaningful design requirements and specifications to those who design switching power supplies. 7Discusses both AC line supplies and DC-DC inverters.7Covers the main switching power supply designs, including flyback, forward conversion, bridge, buch, boost, and boost/buck topologies.7Design examples include a 220 volt offline switching power supply and a 110 volt uninterruptible supply. |
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Practical Switching Power Supply Design $90.37 Take the black magic out of switching power supplies with < B> Practical Switching Power Supply Design!< /B> This is a comprehensive hands-on guide to the theory behind, and design of, PWM and resonant switching supplies. Youbll find information on switching supply operation and selecting an appropriate topology for your application. Therebs extensive coverage of buck, boost, flyback, push-pull, half bridge, and full bridge regulator circuits. Special attention is given to semiconductors use in switching supplies. RFI/EMI reduction, grounding, testing, and safety standards are also detailed. Numerous design examples and equations are given and discussed. Even if your primary expertise is in logic or microprocessor engineering, youbll be able to design a power supply thatbs right for your application with this essential guide and reference! Key Features* Gives special attention to resonant switching power supplies, a state-of-the-art trend in switching power supply design* Approaches switching power supplies in an organized way beginning with the advantages of switching supplies and thier basic operating principles* Explores various configurations of pulse width modulated (PWM) switching supplies and gives readers ideas for the direction of their designs* Especially useful for practicing design engineers whose primary specialty is not in analog or power engineering fields |
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Switching Power Supplies A to Z $69.3 The design of Switching Power Supplies has become one of the most crucial aspects of power electronics, particularly in the explosive market for portable devices. Unfortunately, this seemingly simple mechanism is actually one of the most complex and under-estimated processes in Power Electronics. Switching power conversion involves several engineering disciplines: Semiconductor Physics, Thermal Management, Control Loop theory, Magnetics etc, and all these come into play eventually, in ways hard for non-experts to grasp. This book grows out of decades of the author??’s experience designing commercial power supplies. Although his formal education was in physics, he learned the hard way what it took to succeed in designing power supplies for companies like Siemens and National Semiconductor. His passion for power supplies and his empathy for the practicing or aspiring power conversion engineer is evident on every page. * The most comprehensive study available of the theoretical and practical aspects of controlling and measuring Electromagnetic Interference in switching power supplies, including input filter instability considerations. * Step-by-step and iterative approach for calculating high-frequency losses in forward converter transformers, including Proximity losses based on Dowell’s equations.* Thorough, yet uniquely simple design flow-chart for building DC-DC converters and their magnetic components under typical wide-input supply conditions * Step-by-step, solved examples for stabilizing control loops of all three major topologies, using either transconductance or conventional operational amplifiers, and either current-mode or voltage-mode control.* CD-ROMincludes Visualizations based on Mathcad and Mathcad calculations, including Mathcad files, Excel spreadsheets, Powerpoint Seminars, and PDFs all for power supply design |
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Troubleshooting Switching Power Convertors $65.78 Power supply design is all about detail – a large part of that detail lies in the practical domain, largely because of the typically small number of microseconds of switching periods involved, and the even smaller tens of nanoseconds of switch transition times – all these, in effect accentuating various second-order effects, that eventually end up playing prime havoc with normal expectations of how the circuit should behave. So not unsurprisingly, even after reading several books, most readers still find themselves no closer to the ultimate goal of designing an actual power supply. This book presents practical knowledge the author acquired, while working in the trenches for several years in major engineering companies scattered across several continents. |
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Power-Switching Converters, Second Edition $106.95 Power-Switching Converters provides detailed, practical coverage of switching converters, from the fundamental principles to the next generation of programmable devices. It examines buck, boost, quasi-resonant, loaded-resonant, and isolated configurations. The authors also compare the advantages of switching converters over conventional converters. This new edition includes new material and references, brings all chapters up to date, and provides two new chapters on interleaved converters and switched capacitor converters. The authors furnish new case studies and have also added the discrete-time modeling method to the discussion of the dynamic analysis of switching converters. |
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Switching Power Sup 600ma/24Vd $47.75 - Valcom power supply- 600ma (0.6 Amps)- 24 Vdc- Filtered- 90% Efficiency- Less heat dissipation- Less power consumption- “Brownout” protection- Receptacle mounting- VALCOM POWER UNITS: (+12)VCVP624B |
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Switching to the Mac $15.18 It’s little wonder that longtime Windows users are migrating in droves to the new Mac. They’re fed up with the virus-prone Windows way of life, and they’re lured by Apple’s well-deserved reputation for producing great all-around computers that are reliable, user-friendly, well designed, and now–with the $500 Mac mini–extremely affordable, too. Whether you’re drawn to the Mac’s stability, its stunning digital media suite, or the fact that a whole computer can look and feel as slick as your iPod, you can quickly and easily become a Mac convert. But consider yourself warned: a Mac isn’t just a Windows machine in a prettier box; it’s a whole different animal and a whole new computing experience. If you’re contemplating–or have already made–the switch from a Windows PC to a Mac, you need Switching to the Mac: The Missing Manual, Tiger Edition. This incomparable guide delivers what Apple doesn’t: everything you need to know to successfully and painlessly move to a Mac. Missing Manual series creator and bestselling author David Pogue teams up with 17-year-old whiz kid and founder of GoldfishSoft (www.goldfishsoft.com) Adam Goldstein to cover every aspect of switching to a Mac–things like transferring email, files, and addresses from a PC to a Mac; getting acquainted with the Mac’s interface; adapting to Mac versions of familiar programs (including Microsoft Office); setting up a network to share files with PCs and Macs; and using the printers, scanners, and other peripherals you already own. Covering the latest in Mac OS X v.10.4 Tiger, Switching to the Mac: The Missing Manual, Tiger Edition explains the hundreds of innovative new features to the Mac OSand how you can understand and make the very most of each. Whether you’re a novice or a power user, Switching to the Mac: The Missing Manual, Tiger Edition, teaches you how to smoothly and seamlessly replace (or supplement) your Windows machine–in a refreshingly funny and down-to-earth style–with a mighty Mac. |
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Simplified Design of Switching Power Supplies $36.12 Simplified Design of Switching Power Supplies concentrates on the use of IC regulators. All popular forms of switching supplies, including DC-DC converters, inverters, buck, boost, buck-boost, plus frequency modulation, current-mode control and pulse skipping, are described in detail. The design examples may be put to immediate use or may be modified to meet a specific design goal. |
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Switching to the MAC $18.25 It’s little wonder that longtime Windows users are migrating in droves to the new Mac. They’re fed up with the virus-prone Windows way of life, and they’re lured by Apple’s well-deserved reputation for producing great all-around computers that are reliable, user-friendly, well designed, and now–with the $500 Mac mini–extremely affordable, too. Whether you’re drawn to the Mac’s stability, its stunning digital media suite, or the fact that a whole computer can look and feel as slick as your iPod, you can quickly and easily become a Mac convert. But consider yourself warned: a Mac isn’t just a Windows machine in a prettier box; it’s a whole different animal and a whole new computing experience. If you’re contemplating–or have already made–the switch from a Windows PC to a Mac, you need Switching to the Mac: The Missing Manual, Tiger Edition. This incomparable guide delivers what Apple doesn’t: everything you need to know to successfully and painlessly move to a Mac. The latest reprint of this book has been updated to reflect the new generation of Mac models that run on Intel chips. There’s even a new appendix that guides you through the installation of Windows XP on your Macintosh (using adapter software like Boot Camp or Parallels), so that you have the best of all worlds: a single, beautiful machine that can run 100 percent of the world’s desktop software. (Note to people who’ve already bought the book: This appendix is available as a free PDF download from missingmanuals.com.) Missing Manual series creator and bestselling author David Pogue teams up with 17-year-old whiz kid and founder of GoldfishSoft (www.goldfishsoft.com) Adam Goldstein to cover every aspect ofswitching to a Mac–things like transferring email, files, and addresses from a PC to a Mac; getting acquainted with the Mac’s interface; adapting to Mac versions of familiar programs (including Microsoft Office); setting up a network to share files with PCs and Macs; and using the printers, scanners, and other peripherals you already own. Covering the latest in Mac OS X v.10.4 Tiger, Switching to the Mac: The Missing Manual, Tiger Edition explains the hundreds of innovative new features to the Mac OS and how you can understand and make the very most of each. Whether you’re a novice or a power user, Switching to the Mac: The Missing Manual, Tiger Edition, teaches you how to smoothly and seamlessly replace (or supplement) your Windows machine–in a refreshingly funny and down-to-earth style–with a mighty Mac. |
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VALCOM switching power sup 600ma/24vd $46.99 DETAILS: Valcom power supply 600ma (0.6 Amps) 24 Vdc Filtered 90[%] Efficiency Less heat dissipation Less power consumption Brownout protection Receptacle mounting VALCOM POWER UNITS: (+12) UPC: 799111001067 |
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Switching Power Supply Design & Optimization $94.98 This is a rigorous, carefully explained and motivated beginner’’s bible to power supply design. Between dense, mathematical textbooks on power electronics and tiny power supply cookbooks there exists no practical tutorial on the hazards of contemporary power supply design. Our Pressman book, the 800 lb gorilla in the field, is both mathematically dense and 7 years old. This new book, detailing cutting edge thermal management techniques, grouping key design equations in a special reference section, and containing a concise Design FAQ, will serve both as an invaluable tutorial and quick reference. |
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Apex ATX 12V 400W Switching Power Supply $46.99 ATX12V Power Supply Ideal for P3, P4 and AMD Systems 3.40″ Height x 6″ Width x 5.50″ Depth 132 V AC 264 V AC AL-A400ATX www.apextechusa.com 8 large and 2 Small Leads ALL outputs have short circuit protection Input Protection: Internally located AC line fuse 400 W 1 Year 1 Year 5 V DC 3.3 V DC 12 V DC -5 V DC -12 V DC UL CSA FCC TUV NEMKO DEMKO SEMKO FI CE 47 Hz to 63 Hz 50000 Hour Apex Computer Technology, Inc ATX 12V 400W Switching Power Supply 32°F (0°C) to 122°F (50°C) Operating -40°F (-40°C) to 158°F (70°C) Storage 2 x 4-pin SP4 Floppy Drive 8 x 4-pin LP4 Hard Drive 1 x 4-pin ATX 1 x 6-pin AUX 1 x 20-pin ATX Motherboard Apex 90 V AC to 132 V AC 180 V AC to 264 V AC 2 |
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Cisco 10/100/1000BASE-T Gigabit Ethernet Switching Module with Power over Ethernet – 24 x 10/100/1000Base-T LAN – Switching Module $2887.99 This 24-port IEEE 802.3af-compliant PoE 10/100/1000BASE-T RJ-45 switching module provide wiring closet investment protection by allowing Fast Ethernet desktops to migrate to Gigabit Ethernet in the future without replacing the switch line cards. |
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Cisco 10/100/1000BASE-T Gigabit Ethernet Switching Module with Power over Ethernet $2860.99 Power over Ethernet: Up to 15.4 W per powered device on all 24 ports (to a 312 W total on the Catalyst 4006) Supports cisco IOS software release 12.2(20)EW or later Bandwidth is allocated across six 4-port groups, providing 1 Gbps per port-group Enterprise and commercial: Designed to power IP phones, wireless base stations, video cameras and other IEEE-compliant powered devices. To operate this switching module in a Catalyst 4500 series switch, you must have an PoE-enabled power supply. All power supplies support PoE except the 1000 W and 1400 W AC power supplies To provide PoE with this switching module in a Catalyst 4006 switch, a power entry module (PEM) and a power shelf must be installed. Switching Network Switching Module Catalyst 4503 Switch Catalyst 4506 Switch Catalyst 4507R Switch Catalyst 4510R Switch Catalyst 4003 Switch Catalyst 4006 Switch 10 Mbps Ethernet Half/Full-duplex 100 Mbps Fast Ethernet Half/Full-duplex 1 Gbps Gigabit Ethernet Half/Full-duplex 1.20″ Height x 14.40″ Width x 16″ Depth Not Applicable WS-X4524-GB-RJ45V= www.cisco.com This 24-port IEEE 802.3af-compliant PoE 10/100/1000BASE-T RJ-45 switching module provide wiring closet investment protection by allowing Fast Ethernet desktops to migrate to Gigabit Ethernet in the future without replacing the switch line cards. 24 x 10/100/1000Base-T LAN 24 x RJ-45 10/100/1000Base-T LAN 90 Day Limited UTP 10/100/1000Base-T -196.85 ft to 13123.36 ft Operating IEEE 802.3x flow-control IEEE 802.3af and Cisco prestandard PoE IEEE 802.3 IEEE 802.3u Safety Certifications: UL 1950 EN 60950 CSA-C22.2 no 950 IEC 950 Electromagnetic Emissions Certifications: FCC 15J Class A VCCI Class A CE Marking EN 55022 Class A EN 55024 Class A CISPR 22 Class A AS/NZ 3548 NEBS Level 3 (GR-1089-CORE, GR-63-CORE) ETSI ETS-300386-2 Not Applicable 10% to 90% Non-condensing Relative Humidity Cisco Systems, Inc 10/100/1000BASE-T Gigabit Ethernet Switching Module with Power over Ethernet 32°F (0°C) to 104°F (40°C) Operating -40°F (-40°C) to 167°F (75°C) Storage Cisco |
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Cisco Catalyst 4000 Series Switching Module $4070.99 Power Consumed During Operation: 65 W Power Consumed in Reset Mode: 40 W Maximum Power Per Port: 15 W Efficiency: 89% (If the powered device requires 5 W, then the switch allocates 5.6 W) Switching Network Switching Module Catalyst 4503 Switch Chassis Catalyst 4506 Switch Chassis Catalyst 4006 Switch Chassis 10 Mbps Ethernet 100 Mbps Fast Ethernet WS-X4248-RJ21V= www.cisco.com The Cisco Catalyst 4500 Series Switch expands Power-over-Ethernet (PoE) support. PoE, offers greater flexibility and mobility to users by delivering standards-based integrated power to increase network flexibility and usefulness with the support of new devices, services, and applications. 48 x 10/100Base-TX LAN 48 x RJ-21 10/100Base-TX Inline Power LAN 90 Day Limited Cisco Systems, Inc Catalyst 4000 Series Switching Module 20 W Power Supply: Catalyst 4000 Series Power Entry Module (PEM) on Catalyst 4006 Switch Chassis Minimum Software Requirements For New Hardware: Cisco IOS Software Release: 12.2(18)EW Catalyst OS Version: 8.3(1)GLX 4000 Cisco |
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Switching to Solar $11.57 Switching to Solar |
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Code Switching $10.32 Code Switching |
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Telecommunications Switching $182 Telecommunications Switching |
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Switching to Renewable Power: A Framework for the 21st Century $84.33 * At a time when decisionmakers are considering how best to support renewable energy, this book examines the regulatory framework, providing a platform for development and an invaluable research text |
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Cisco 48-port IEEE 802.3af-compliant PoE Switching Module $4051.99 To provide PoE with the 48-port PoE 10/100BASE-TX switching module in a Catalyst 4006 switch, you must have a power entry module (PEM) and a power shelf installed Power over Ethernet: Up to 15.4 W per powered device on all 48 ports (to a 312 W total on the Catalyst 4006) Auto MDIX is not supported Power regulation: Internal on the switching module Enterprise and commercial: Designed to power IP phones, wireless base stations, video cameras, and other IEEE-compliant powered devices Switching Network Switching Module Catalyst 4503 Switch Catalyst 4506 Switch Catalyst 4507R Switch Catalyst 4510R Switch Catalyst 4003 Switch Catalyst 4006 Switch 10 Mbps Ethernet Half/Full-duplex 100 Mbps Fast Ethernet Half/Full-duplex 1.20″ Height x 14.40″ Width x 16″ Depth Not Applicable WS-X4248-RJ45V www.cisco.com The Cisco Catalyst 4500 Series Switch expands Power-over-Ethernet (PoE) support. PoE, offers greater flexibility and mobility to users by delivering standards-based integrated power to increase network flexibility and usefulness with the support of new devices, services, and applications. IEEE 802.3af PoE compliance is provided in the Catalyst 4500 Series with the introduction of this new line card and Cisco IOS Software Release 12.2(18)EW and CatOS Software Release 8.3(1)GLX to meet the needs of enterprise and commercial customers. The new line card enhance the Cisco Catalyst 4500 Series portfolio by giving customers the flexibility to support either the IEEE 802.3af standard or the Cisco prestandard PoE implementation on the same line card. This ensures backward compatibility with existing Cisco powered devices. This line cards support up to 15.4 Watts per port on all ports, optional power classifications, and intelligent power-management features. The new cards are compatible with any Catalyst 4500 Series or Catalyst 4000 Series chassis and can be deployed with any Supervisor Engine. 48 x 10/100Base-TX LAN 48 x RJ-45 10/100Base-TX LAN 90 Day Limited UTP 10/100Base-TX -196.85 ft to 13123.36 ft Operating IEEE: IEEE 802.3af PoE and Cisco prestandard IEEE 802.3: 10Base-T IEEE 802.3u: 100Base-T Electromagnetic Emissions Certifications: FCC 15J Class A VCCI Class A CE Marking EN 55022 Class A EN 55024 Class A CISPR 22 Class A AS/NZ 3548 NEBS Level 3 (GR-1089-CORE, GR-63-CORE) ETSI ETS-300386-2 Safety Certifications: UL 1950 EN 60950 CSA-C22.2 no 950 IEC 950 Not Applicable 10% to 90% Non-condensing Relative Humidity Cisco Systems, Inc 48-port IEEE 802.3af-compliant PoE Switching Module One Expansion Slot Minimum Software Requirements: Cisco IOS Software Release: 12.2(18)EW Catalyst OS Version: 8.3(1)GLX |