• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
ICL page 1 Inductive  Coupled  Link (Updated October 2004)
ICL page 1 Inductive Coupled Link (Updated October 2004)

... the sub or ROV. These are ground, +12 volts, RS-232 data in and RS-232 data out. These are true RS-232 levels and connect directly to a serial port on some computer. Two additional wires go to the coil which may be up to about 10 feet from the circuit. (Longer cables are possible, but require readju ...
PDF
PDF

... when WNW reduces from 60 to 9 nm for Lg = 80 nm. This is attributed to the higher channel resistance with decreasing WNW . A higher channel resistance corresponds to less degradation of intrinsic Vds when Vgs increases, which is beneficial for higher gm linearity [4], especially for JL FETs. We beli ...
What is the Network
What is the Network

... • What is the subnetwork address for a host with the IP address 200.10.5.68/28? ...
Universal Power Adapter for Mobile Devices IEEE P1823 UPAMD
Universal Power Adapter for Mobile Devices IEEE P1823 UPAMD

... main load of the laptop. As long as the impact on the system is detectable, it might not need its own channel of communications. Lee/Gary: In the context of UPAMD, it might be desirable to specify that every load in a single power line should be declared (communicate). Edgar: Under the CAN communica ...
SL Series: 1.5 kW to 6 kW - Magna
SL Series: 1.5 kW to 6 kW - Magna

Sub-threshold current. I 1
Sub-threshold current. I 1

... •Reduce the switching component by 4 to 81 times!!! •Reduce the ISC leading to “double reduction”: lower VDD and lower ISC •Reduce leakage power by 2.5 to 9 times. ...
Type 5411, 5413
Type 5411, 5413

... A pressure difference of at least 1 bar is required for switching. ...
SI03-12 - Semtech
SI03-12 - Semtech

... High-reliability carrier and enterprise class Ethernetbased systems require robust protection of external ports from transient voltage events such as lightning, electrostatic discharge, and cable discharge events. Each new generation of Ethernet deployment yields higher-density boards that demand pr ...
1500 Watt MOSORB® Transient Voltage Suppressor, 9.1 V Unidir
1500 Watt MOSORB® Transient Voltage Suppressor, 9.1 V Unidir

Introduction_Power_Supply-6-9-10
Introduction_Power_Supply-6-9-10

... • Upon completion of viewing this presentation, you should be able to: – Define power supply. – Name the main components in a common linear AC to DC power supply and explain the purpose and function of each. – Define rectifier and name two common types. – Name the component that transforms pulsating ...
Load Flow Study using Tellegen`s Theorem
Load Flow Study using Tellegen`s Theorem

... solution methods have problems, like • Non- convergence • High memory requirement • Large computation time ...
2013_IEEE A High Speed Low Power CAM With a Parity Bit and
2013_IEEE A High Speed Low Power CAM With a Parity Bit and

... average power consumption of the CAM Utilized the pre-charge low scheme (i.e., low swing) to reduce the average power consumption. Pre-Computation CAM Design – The pre-computation CAM uses additional bits to filter some mismatched CAM words before the actual comparison. These extra bits are derived ...
Two-Way Current-Combining w-Band Power Amplifier in 65
Two-Way Current-Combining w-Band Power Amplifier in 65

... beneficial to the PA output power and efficiency, it is preferred to maximize device operating speed. To achieve so, the PA devices are normally biased at saturation region, which results in the unavoidable constant current flowing through the active devices and leads to large power waste. Another c ...
Power Factor and Power Factor Correction | CUI Inc
Power Factor and Power Factor Correction | CUI Inc

... reducing the higher-order current harmonics that, as noted above, contribute to degraded power factor. Such techniques involve putting a low-pass filter in the input side of the power supply to suppress higherorder harmonic components, and then compensating lead/lag characteristics as with conventio ...
AlliedWare Plus™ OS How To | Introduction
AlliedWare Plus™ OS How To | Introduction

... LLDP for Media Endpoint Devices (LLDP-MED) is an extension of LLDP used between LAN network connectivity devices – such as switches – and the media endpoint devices connected to them – such as IP phones. A powerful feature of LLDP-MED is its ability to carry configuration instructions from the switc ...
OPTOTRONIC OTe 10/220-240/700 PC
OPTOTRONIC OTe 10/220-240/700 PC

... OTe 10/220-240/700 PC is a “Protection Class II” power supply, therefore ground connection is not required ...
10-50 mA Calibrators for nuclear power plants
10-50 mA Calibrators for nuclear power plants

... The PIE Models 535 & 850 can also operate as a 4-20mA calibrator using its dual mode power supply to automatically adjust its internal voltage to 24 V dc for compatibility with instruments in 4-20mA loops. If you have any instruments that require 10-50 mA at 48V we offer the 535-50 which has an inte ...
II. MOS-NDR Device and Inverter DESIGN
II. MOS-NDR Device and Inverter DESIGN

... The negative-differential-resistance (NDR) current-voltage (I-V) characteristics of the RTD devices have several advantages, and they may have high potential as functional devices due to their unique folding I-V characteristics. However these RTD devices are fabricated by the compound semiconductor ...
Terms and Abbreviations
Terms and Abbreviations

... Analog signal - A signal that attains an infinite number of different amplitude levels. AO - Analog Output Apparent Power - The power value obtained by multiplying the current by the voltage (P = I X E). 9. Axial dimension - This term is used for the measurement of the coupler distance during the ge ...
Fluke 1735 - Electro Rent
Fluke 1735 - Electro Rent

... • Record power and associated param- ...
Routout CNC Microstepping Bipolar Stepper Motor Driver (Opto
Routout CNC Microstepping Bipolar Stepper Motor Driver (Opto

MS Supplies Technical Description Template
MS Supplies Technical Description Template

... a) One power transformer 18/2 kV 2.5 MVA (not included in the scope of supply) b) One AC/DC Active Front End (AFE) sinusoidal rectifier. This converter will rectify the AC voltage and control the power flow from AC to DC side with unity power factor. The AC current harmonic distortion will be kept v ...
Part B: Input and Output Impedance and Impedance Matching
Part B: Input and Output Impedance and Impedance Matching

... “seen” by the signal connected at the input of the network. Accordingly, one can determine the input impedance from direct measurement of amplitude and phase of current and voltage at input terminals, over a frequency range. ...
CSE3213S08_Lec8
CSE3213S08_Lec8

... • Category 3 twisted pair (ordinary telephone grade) requires 4 pairs • Category 5 twisted pair requires 2 pairs (most popular) • Most prevalent LAN today ...
Instructions - Klein Tools Europe
Instructions - Klein Tools Europe

... VDV Commander and press the up/down/left/right buttons to increase or decrease the VoP. Press the left and right buttons to select and change the VoP one digit at a time. • While adjusting the VoP, press the test button until the desired length of the cable is displayed. • To save the calibrated V ...
< 1 ... 359 360 361 362 363 364 365 366 367 ... 576 >

Power over Ethernet



Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras. Unlike standards such as Universal Serial Bus which also power devices over the data cables, PoE allows long cable lengths. Power may be carried on the same conductors as the data, or it may be carried on dedicated conductors in the same cable.There are several common techniques for transmitting power over Ethernet cabling. Two of them have been standardized by IEEE 802.3. Since only two of the four pairs are needed for 10BASE-T or 100BASE-TX, power may be transmitted on the unused conductors of a cable. In the IEEE standards, this is referred to as Alternative B. Power may also be transmitted on the data conductors by applying a common-mode voltage to each pair. Because twisted-pair Ethernet uses differential signalling, this does not interfere with data transmission. The common mode voltage is easily extracted using the center tap of the standard Ethernet pulse transformer. This is similar to the phantom power technique commonly used for powering audio microphones. In the IEEE standards, this is referred to as Alternative A.In addition to standardizing existing practice for spare-pair and common-mode data pair power transmission, the IEEE PoE standards provide for signalling between the power sourcing equipment (PSE) and powered device (PD). This signaling allows the presence of a conformant device to be detected by the power source, and allows the device and source to negotiate the amount of power required or available. Up to a 25.5 watts is available for a device.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report