• 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
D A TA SHEET F112 - FLOW RA TE INDIC A TOR / TO TALIZER
D A TA SHEET F112 - FLOW RA TE INDIC A TOR / TO TALIZER

... applications. Especially in harsh weather conditions like rain, snow, salty atmosphers and temperatures between -40°C up to +80°C (-40°F up to 176°F). • Liquid flow measurement with mechanical flow meters where a precise calculation over the full measurement range is required. Also re-transmission o ...
industrial accelerometers
industrial accelerometers

Powermonitor 3000 Master Module Installation Instructions
Powermonitor 3000 Master Module Installation Instructions

... wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages result ...
64-0012 Rev B - Magnum Dimensions
64-0012 Rev B - Magnum Dimensions

... output capacity, or there is a short on the output wiring. The inverter can be restarted after the AC loads are reduced, or the wiring short has been removed. To restart the inverter, momentarily press the ON/OFF button on either the inverter or the remote. ...
Class Notes 45.1: Electromagnetic Compatibility
Class Notes 45.1: Electromagnetic Compatibility

... supply harmonic through the equipment power supply or by magnetic coupling of harmonics into equipment components. Computers and similar equipment such as programmable controllers frequently require AC sources that have no more than 5 % harmonic voltage distortion factor with the largest single harm ...
Document
Document

... The Fibre Channel over Ethernet (FCoE) fabric module allows the transport of Fibre Channel protocol (FCP) traffic across data center bridging|lossless Ethernet networks. The specification, supported by a large number of network and storage vendors, is part of the Technical Committee T11 FC-BB-5 stan ...
Emerson Network Power Rack PDU Solutions
Emerson Network Power Rack PDU Solutions

Design Guide
Design Guide

TSA7887 - Silicon Labs
TSA7887 - Silicon Labs

... and draws 0.85mA supply current. The wideband input track-and-hold acquires signals in 500ns and features a single-ended sampling topology. Output data coding is straight binary and the ADC is capable of converting full power signals up to 2.5 MHz. The ADC also contains an integrated 2.5V reference ...
S. Lim, D.M. Otten and D.J. Perreault, “Power Conversion Architecture for Grid Interface at High Switching Frequency,” 2014 IEEE Applied Power Electronics Conference , pp. 854-861, March 2014.
S. Lim, D.M. Otten and D.J. Perreault, “Power Conversion Architecture for Grid Interface at High Switching Frequency,” 2014 IEEE Applied Power Electronics Conference , pp. 854-861, March 2014.

IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

... structures, namely CMOS and CEPAL, at different supply voltage levels. On incorporating CEPAL scheme, the power dissipation is evidently less than the Carry Look-Ahead Adder featuring CMOS at various supply voltages. ...
Ringing Reduction Techniques for NexFET High
Ringing Reduction Techniques for NexFET High

... enhancements outlined in this paper should somewhat improve the overall EMI/EMC performance of the system in “relative” terms. In addition, there are published (1) (2) papers that have focused on addressing the EMI/EMC effects in these applications. In terms of Voltage Margin, customers tend to impo ...
4.2 Setting the Tray Tilt Angle
4.2 Setting the Tray Tilt Angle

... Boekel Orbitron Rotator. The Model 260200 is a fixed angle/fixed speed version and the Model 260250 is a variable angle/variable speed version. The Boekel rotators come with standard 12-inch trays and mats. The Boekel Rotator I Model 260200 has a rotating speed of approximately 25 RPM with the tray ...
PMBus™ Power Syste em Management Pr rotocol
PMBus™ Power Syste em Management Pr rotocol

...  A particular power conversion device or family of power conversion devices  A specification of any individual or family of integrated circuits. This specification does not address direct unit to unit communication such as analog current sharing, voltage tracking, and clock signals for interleavin ...
2.1 Technical Requirements
2.1 Technical Requirements

... requirement phasing of the project, through a DEWA approved consultant and contractor. However, DEWA requires adequate lead time for arranging 132kV cables to any new 132kV substations after finalization of load requirements, substation locations, cable corridors and receiving the original affection ...
BH1603FVC
BH1603FVC

Submersible Wastewater Pump Type ABS AS 0530 - 0841
Submersible Wastewater Pump Type ABS AS 0530 - 0841

... Before commissioning, the unit should be checked and a functional test carried out. Particular attention should be paid to the following: -- Have the electrical connections been carried out in accordance with regulations? -- Have the thermal sensors been connected? -- Is the seal monitoring device ( ...
AD7823 数据手册DataSheet 下载
AD7823 数据手册DataSheet 下载

... Figure 7 shows an equivalent circuit of the analog input structure of the AD7823. The two diodes, D1 and D2, provide ESD protection for the analog inputs. Care must be taken to ensure that the analog input signal never exceeds the supply rails by more than 200 mV. This will cause these diodes to bec ...
LVC5050 - AE Techron
LVC5050 - AE Techron

Document1 (Page 1)
Document1 (Page 1)

Major Project Guidelines
Major Project Guidelines

... requirement phasing of the project, through a DEWA approved consultant and contractor. However, DEWA requires adequate lead time for arranging 132kV cables to any new 132kV substations after finalization of load requirements, substation locations, cable corridors and receiving the original affection ...
Slides
Slides

... from the gateways (except when transmitting) Medium/High energy consumption at end device Suitable for actuations with strict time constraints  Automation, ...
BD6164GUT
BD6164GUT

... When SDA and SCL are both H, data is not transferred on the I C- bus. This condition indicates, if SDA changes from H to L while SCL has been H, it will become START (S) conditions, and an access start, if SDA changes from L to H while SCL has been H, it will become STOP (P) conditions and an access ...
Altivar 212
Altivar 212

... contained herein. If you have any suggestions for improvements or amendments or have found errors in this publication, please notify us. No part of this document may be reproduced in any form or by any means, electronic or mechanical, including photocopying, without express written permission of Sch ...
Meter Design for Power Failure Events
Meter Design for Power Failure Events

... mode, i.e. operation with reduced functionality while being powered from a battery or super-capacitor. The purpose of brownout mode is to operate the display of the meter from battery power during a power failure so utility personnel can read the billing information. TERIDIAN does not recommend savi ...
< 1 ... 110 111 112 113 114 115 116 117 118 ... 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