FT-ROUTER5000 datasheet(1/6 Pages) ETC2

部件名	FT-ROUTER5000

功能描述	3.3V operation

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制造商	ETC2 [List of Unclassifed Manufacturers]

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Proven, Safe Choice

The FT Router 5000 IC is an Echelon

semiconductor product that is used to build

half routers and full routers. The FT Router

5000 IC is based on the Echelon FT 5000

Smart Transceiver and can be used to build

a FT-10 channel halfrouter with LONWORKS®

communication channel to route LonTalk®

messages. An Echelon router can support

installation of networks with up to

thousands of nodes.

The FT Router 5000 IC includes the Router

firmware required to implement a half

router. Its compact form factor minimizes

the space required to develop a half router.

Customers can develop two half routers to

build a full router. Customers will need to

use the FT-X3 communications transformer

to connect to the network. The Router

parameters are stored in an external

EEPROM with a minimum size of 2 KB. For

a full router design, customers can use the

same crystal and the same power supply

to implement the clock needed for the two

half routers. This offers the flexibility for

customers to incorporate the FT Router

5000 IC into their design for a higher level

of integration.

The FT Router 5000 IC can use one of

four routing algorithms: configured router,

learning router, bridge or repeater. The

ability to choose these options allows the

customer to trade off system performance

for ease of installation.

Configured and learning routers fall into

a class of routers known as intelligent

routers, which use routing tables to

selectively forward messages based on

the destination address.

A router configured as a bridge forwards

all valid packets that match its domains,

whereas a router functioning as a repeater

forwards all valid packets. Configured

routers are easily installed using an

installation tool such as the OpenLNS

Commissioning Tool and OpenLNS network

operating system that calculates network

topology and layer 4 timing parameters.

Usage

A FT Router 5000 based FT-10 channel half

router consists of the FT Router 5000 chip,

the FT-X3 communications transformer,

a crystal to generate the clock and an

external memory to hold the router table.

Two such half routers are used to build a

full router. A half router design that uses

FT Router 5000 can be used with another

half router to function as a repeater or

interface with other twisted pair physical

media such as RS-485, TP-78, TP-1250 or

LPT-11. It can also be used to implement

a FT-PL router using the PL 3150 Smart

Transceiver. The two half routers of a full

router are logically isolated so that a failure

in one half router will not affect the other

side’s network.

www.echelon.com

FT Router 5000

Build high performance half routers that increase the

scalability and surviveability of LONWORKS® control

networks while lowering the overall solution cost.

FT Router 5000 Key Features

•

3.3V operation

•

Higher-performance Neuron®

Core; internal system clock

scales up to 40 MHz; Larger

buffer size to allow for extended-

NVs and improved throughput

•

Serial interface for inexpensive-

external non-volatile EEPROM

and flash memories

•

Compliant with TP/FT-10

Channels

•

Low-cost surface mount FT-X3

Communications Transformer

•

Compact 7mm x 7mm 48-pin

QFN package

•

Logical Isolation between two

half routers improves system

reliability by isolating failures

between channels

•

-40°C to +85°C operating

temperature range

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