Copper-to-fiber 100BASE-FX or 1000BASE-X media converter reference design for grid applications


Design files


This reference design details a methodology to use the DP83849 evaluation board to implement a 10/100BASE-TX to 10/100BASE-FX media converter, which enables copper based legacy equipment to be easily connected to a fiber network. Copper based Ethernet (10/100BASE-TX) has been widely used in grid local area networks, but with limited communication distance. Fiber optic networking has been well established and has continuous cost reductions. It is feasible and cost efficient for utility to use fiber optic networks to manage wide area equipment, which brings higher speed, longer coverage distance, and more reliable communication.

  • Low power consumption, < 600mW
  • Stand-alone Media Converter without any software programming
  • Strapping by using jumpers for ease of evaluation
  • Can be extended for use as a Dual 10/100 Copper Ethernet interface
  • Well suited for Mini-size 10/100BASE-TX to 100BASE-FX Media Converter
  • Application note describes how to use DP83849IFVS-EVK to demo the  Media Converter application
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU510B.PDF (2092 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Files used for 3D models or 2D drawings of IC components

TIDC663A.ZIP (4683 K)

Design file that contains information on physical board layer of design PCB

TIDRZX6.ZIP (2669 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Ethernet PHYs

DP83849IIndustrial temperature, dual-port 10/100-Mbps Ethernet PHY transceiver with flexible port switchi

Data sheet: PDF | HTML
Ethernet PHYs

DP83849IFIndustrial temperature, dual-port 10/100-Mbps Ethernet PHY transceiver with fiber support & flexible

Data sheet: PDF
Ethernet PHYs

DP83869HMExtended temperature, high-immunity gigabit Ethernet PHY transceiver with copper & fiber interface

Data sheet: PDF | HTML
ESD protection diodes

TPD4E05U06Quad 0.5-pF, 5.5-V, ±12-kV ESD protection diode for USB, HDMI & High Speed Interfaces

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TL1963A1.5-A, 20-V, low-dropout voltage regulator with reverse current & reverse voltage protection

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS709150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS732250-mA, high-accuracy, ultra-low-dropout voltage regulator with reverse current protection & enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS735500-mA, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS74701500-mA, low-VIN (0.8-V), adjustable ultra-low-dropout voltage regulator with power good & enable

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430F552925 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

Data sheet: PDF | HTML

Start development


Evaluation board

DP83849IFVS-EVK/NOPB — DP83849IFVS basic product evaluation & customer demo board with FX

This evaluation kit (EVK) is for PHYTER™ ethernet physical layer transceivers with dual industrial temperature with fiber support (FX) and flexible port switching dual port 10/100 Mb/s (backwards compatible to the DP83849IDVS-EVK).

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Technical documentation

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Type Title Date
* Design guide Copper-to-Fiber 100BASE-FX or 1000BASE-X Media Converter Reference Design (Rev. B) Jun. 17, 2019
Technical article Overcoming Ethernet connectivity challenges on the power grid Jun. 27, 2019

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