Datasheet > NWK954D

NWK954D

更新时间： 2024-01-31 16:15:54

品牌	Logo	应用领域
MITEL		中继器以太网以太网：16GBASE-T
页数	文件大小	规格书
17页	179K
描述
QUAD FAST ETHERNET REPEATER

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NWK954D 数据手册

NWK954

QUAD FAST ETHERNET REPEATER

PRELIMINARY INFORMATION

DS4842-2.1 April 1998

Supersedes January 1998 version, DS4842 - 1.1

The NWK954 is a fully integrated, unmanaged, 4-port Fast

Ethernet Repeater conforming to the IEEE 802.3 100BASE-TX

Standard. The device integrates the 802.3 Repeater functions

with four 100BASE-TX PHY modules, enabling direct connection

to the isolation transformers with no additional PHY components.

It has built-in LED drivers for display of port activity and

network utilization. There is a local expansion port which allows

up to six NWK954s to be cascaded to form a 24-port repeater

with no additional components.

With the addition of simple backplane driver/receivers, up to

eight 24-port repeaters can be stacked.

The NWK954 is supplied in a 128-pin PQFP and interfaces

to the twisted pair media through 1:1 isolation transformers.

FEATURES

■ Compliant with IEEE 802.3 100BASE-TX Repeater

Unit Specification

■ Incorporates four IEEE 802.3 Compliant 100BASE-TX

Ports

■ Local Expansion Port for Cascading to 24 Ports

■ Stackable Backplane for Expansion up to 192 Ports

■ Link/Activity LED and Receive Error LED for each Port

■ Collision LED

■ Five LED Network Utilization Display

■ Base Line Wander Correction

■ Power Saving on Unused Ports

■ Driven from a Single 25MHz Clock

■ Single 5V supply

■ Low Power CMOS Technology

■ 128-pin PQFP package

ORDERING INFORMATION

NWK954D/CG/GH1N

OSCILLATOR

BACKPLANE CONTROLS

LOCAL EXPANSION BUS

BACKPLANE BUFFERS

CLOCK DRIVERS

NWK954

QUAD

MAGNETICS

QUAD

MAGNETICS

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MAGNETICS

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MAGNETICS

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MAGNETICS

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MAGNETICS

QUAD RJ45

Fig. 1 System block diagram

12 3 4 5 6 7...17

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