DG-ACC-POE Digi International, DG-ACC-POE Datasheet
DG-ACC-POE
Specifications of DG-ACC-POE
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DG-ACC-POE Summary of contents
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Power-Over-Ethernet Application Kit Hardware Reference Digi document reference number: 90000940 ...
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... Digi International Inc. 2008. All Rights Reserved. The Digi logo is a registered trademark of Digi International, Inc. All other trademarks mentioned in this document are the property of their respective owners. Information in this document is subject to change without notice and does not represent a commitment on the part of Digi International. ...
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Contents Contents ........................................................................................................ 3 1 Overview .................................................................................................. 4 1.1 Introduction to PoE ................................................................................................................................ 4 2 Detailed description ................................................................................. 5 2.1 POE_12V_JS_0 ...................................................................................................................................... 5 2.1.1 Mechanical .......................................................................................................................................................... 5 2.1.2 Flyback Transformer ......................................................................................................................................... 6 2.1.3 ...
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Power-Over-Ethernet Application Kit - Hardware Reference 1 Overview This document defines the characteristics of the PoE application kit board. This application kit provides a reference design for PoE on the Power Device side using National LM5070 device. The POE_12V_JS ...
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Power-Over-Ethernet Application Kit - Hardware Reference 2 Detailed description 2.1 POE_12V_JS_0 The POE_12V_JS application kit is designed to provide an IEEE802.3af compliant, Power over Ethernet (PoE) 12V power supply. This application kit is based on the National Semiconductor LM5070 ...
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Power-Over-Ethernet Application Kit - Hardware Reference 2.1.2 Flyback Transformer The flyback transformer is a coupled inductor with multiple windings wound on a single gapped core. For simplification, we refer to the first, driven winding, as the primary and the ...
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Power-Over-Ethernet Application Kit - Hardware Reference 2.1.3 Current Limit / Current Sense The LM5070 provides a cycle-by-cycle over current protection function. Current limit is accomplished by an internal current sense comparator. If the voltage at the current sense comparator ...
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Power-Over-Ethernet Application Kit - Hardware Reference 3 Connectors pinout 3.1 Connector P1 Pin 3.2 Connector P2 Pin Description Comments POE_TX_CT POE_RX_CT POE_RJ45_4/5 POE_RJ45_7/8 Description Comments +12V +12V GND GND ...
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Power-Over-Ethernet Application Kit - Hardware Reference 4 Application notes from National Semiconductors - Application Note 1358: LM5070 "AE" Evaluation Board http://www.national.com/an/AN/AN-1358.pdf - LM5070 Reference Design - Isolated Power-over-Ethernet (POE) Regulator, Low-cost, High Efficiency 5V 7W Output http://www.national.com/rd/PAhtml/PADC_POE_5V_7W_ISO.html 9 ...