10G LAN Transformer

10G LAN Transformer Network Ethernet Filter Module10G

（High rate network communication filter）

DC P/N: D82409S

Category :10G megabit network transformer

Transformer Type :LAN 10G BASE-T

The circular number: 8

Mounting type: surface mount

Packing: standard tube/roll package

Magnetic part: magnetic core

Metal parts: sheet/pin

Electrical part: enameled wire

Potting material: epoxy resin/silica gel

Plastic parts: plastic shell/skeleton

Welding material: flux

Inductance: 120 mu H

Turn ratio :1:1 transmitter,1:1 receiver

Operating temperature :0℃~+70℃

POE power supply: 600 ma @ 57 v

10G Ethernet technology overview

10G Ethernet is the natural evolution of Ethernet in terms of speed and distance. Its standard was officially issued in June 2002. While Ethernet speeds continue to improve, the basic frame format remains the same. 10GE follows the IEEE 802.3AE standard, which corresponds to the OSI data link layer. They include the ieee 802.1mac Media access control sub-layer (Framing and Media access, corresponding to OSI layer 1.5) and the IEEE802.2 LLC logical link control sub-layer (LLC, corresponding to OSI layer 2). RFC 1042 is recommended for encapsulating IP packets. It works in full-duplex mode, eliminates CSMA/CD collision detection, and 10G Ethernet supports both LAN and WAN physical interfaces. For wide area networks, 10G Ethernet adds a data control mode to the MAC sublayer to match SONET/SDH data rates.

10G Ethernet technology introduction

10G Ethernet has made great progress mainly in the physical layer, so let's briefly introduce the physical layer and chip interface XAUI of 10G Ethernet.

Physical layer structure

The physical layer of Ethernet is divided into PCS(physical coding sub-layer), PMA(physical media attached sub-layer), and PMD(physical media related sub-layer). PCS encodes the data, 10G Ethernet defines a new 64B/66B encoding method; PMA provides media-independent methods; PMD defines the link distance supported when the physical layer uses fiber media

Link distance

The physical layer of 10G Ethernet supports four PMDS, with the longest distance of single-mode fiber up to 40Km and the longest distance of multi-mode fiber up to 300m. Because the LAN and WAN physical layers will use common PMD, they will have the same transmission distance.

Type of physical layer

The physical layer is divided into two types: LAN PHY and WAN WAN PHY. WAN physical layer differs from LAN physical layer in that it contains a WIS(WAN interface sub-layer) sub-layer, that is, the WAN interface sub-layer contains a simplified SONET/SDH frame to realize the mapping to SDH. In this way, IP/Enthernet switch based on packet statistical multiplexing is combined with SONET/SDH TDM system based on 2d frame structure, so that 10G Ethernet can use SONET/SDH as the layer 1 bearer platform across the wide-area transmission backbone network.

A 10G Ethernet LANPHY interface can be 10GBase-SR, 10GBase-LX4, 10GBase-LR, or 10GBase-ER. The 10G Ethernet WANPHY interface can be 10gbase-sw, 10gbase-lw, or 10gbase-ew.

Chip interface XAUI

XAUI technology is one of the innovative technologies of 10G Ethernet. XAUI is a built-in clock serial bus technology developed from gigabit Ethernet 1000Base-XPHY. The interface rate is 2.5 times that of 1000Base-X. Over four serial channels, this 4Bit XAUI supports 10G Ethernet requiring data throughput 10 times faster than 1000Base-X. Because XAUI has the characteristics of internal integrated clock (high-frequency clock that does not need to be triggered externally), it has good electromagnetic compatibility characteristics and can realize the connection between MAC layer and physical layer chip, or even the MAC layer directly to the optical transceiver module. Currently, many chip vendors have released or can provide XAUI interfaces.