Metrodata FC7000 Manuale utente

FC7000 Ethernet Media Converter

Installation Guide

DATE: 21st September 2009

DOCUMENT NO: 76-02-047A

REVISION: A

PREPARED BY: Ian Banbrook

Metrodata Ltd

Fortune House, Crabtree Office Village

Eversley Way, Egham Surrey, TW20 8RY, UK

Tel +44 1 784 744700

Fax: +44 1 784 744730

E-Mail: [email protected]

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METRODATA LTD

No part of this publication may be reproduced, transmitted,

transcribed, stored in a retrieval system, or translated into any

language or computer language, in any form or by any means,

electronic, mechanical, magnetic, optical, chemical, manual or

otherwise, without the prior written permission of

Metrodata Ltd, Fortune House,

Crabtree Office Village, Eversley Way,

Egham, Surrey, TW20 8RY, United Kingdom.

DISCLAIMER

Metrodata Ltd makes no representations or warranties with respect

to the contents hereof and specifically disclaims any implied

warranties or merchantability or fitness for any particular purpose.

Further, Metrodata Ltd reserves the right to revise this publication

and to make changes from time to time in the content hereof without

obligation of Metrodata Ltd to notify any person of such revision or

changes.

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Document Revision History

20th March 2009 XA Document Created

21st September 2009-09-21 A Document Released

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TABLE OF CONTENTS

2INTRODUCTION..........................................................................................................5

3FC7000 UNIT ...............................................................................................................6

3.1 Power Connector................................................................................................................................................6

3.2 10/100BaseT RJ45 Port......................................................................................................................................6

3.3 100BaseFX Port..................................................................................................................................................6

4FC7X00 CONFIGURATION .........................................................................................7

4.1 Bit Switch 1: Auto Negotiation..........................................................................................................................7

4.2 Bit Switch 2: Speed 100/Speed 10......................................................................................................................8

4.3 Bit Switch 4: Duplex...........................................................................................................................................8

4.4 Bit Switch 5: Auto MDI/MDIX .........................................................................................................................8

4.5 Bit Switch 7: Link State Forwarding................................................................................................................9

5FC7X00 STATUS LED INDICATORS........................................................................10

5.1 10/100BaseT Link.............................................................................................................................................10

5.2 10/100BaseT Speed...........................................................................................................................................10

5.3 LOS....................................................................................................................................................................11

5.4 100Base-FX Fibre Port Link/Act LED...........................................................................................................11

6LINK STATE FORWARDING.....................................................................................12

6.1 LSF for Fibre Fault..........................................................................................................................................12

6.2 LSF for Copper Fault.......................................................................................................................................12

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2 INTRODUCTION

The Metrodata FC7x00 is a range of Fast Ethernet Media converter which will convert

between a 10/100BaseT copper twisted pair interface and a 100Base-FX fibre interface.

The FC7x00 utilises a duplex SC Fibre transceiver module and is available in the following

options:

FC7000 100BaseFX 1300nm, Multimode, up to 5km reach

FC7100 100BaseFX 1310nm, Single-mode, up to 30km reach

FC7200 100BaseFX 1310nm, Single-mode, up to 70km reach

Despite these quoted maximum operating distances for the FC7X00 products, specific

installations may only operate over lower distances due to the variations in losses of

different types of fibre cable, the use of connecting fibre cables, or patch panels. When

operating over 50% of the maximum distances it is advisable to calculate all fibre optic

connector and cable losses and compare these with the fibre optic loss budget specified

for this product.

The FC7x00 may be used for simple media conversion to enable connection of a twisted

pair port on a switch to a fibre port on another switch as shown below:

Figure 1: FC7000 Media Conversion

Alternatively, the FC7000 may be used to extend the reach of a twisted pair connection

from 100m to over 20km by conversion to fibre as shown below:

Figure 2: FC7100 Link Extension

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3 FC7000 UNIT

The FC7000 has all connectors on the rear panel for easy access, along with status LEDs

for unit monitoring. The FC7000 unit rear panel is shown below

Figure 3: FC7000 Rear panel

The rear panel has several connectors as described below:

3.1 Power Connector

AC Power to the FC7x00 is supplied via an IEC connector on the rear panel. The FC7x00

has an integral power supply and operates over the range 100 to 250V AC and draws less

than 50mA when operating.

Alternatively, DC power may be specified where the Mains IEC connector is replaced with

a buccaneer type connector for operation over the range

7 to 24V DC

36 to 72V DC

3.2 10/100BaseT RJ45 Port

The FC7x00 presents a single RJ45 port offering a 10/100BaseT twisted pair interface.

The port supports both auto negotiation for speed and duplex configuration as well as auto

MDI/MDIX crossover to simplify cable connections as all connections may be made with a

normal straight through patch cable, removing the need to use cross over cables.

3.3 100BaseFX Port

The FC7x00 has a single fibre port presented as a duplex SC connector. Metrodata offer

three versions, supporting either Multi-Mode, Single Mode Short Haul or Single Mode Long

Haul applications

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4 FC7X00 CONFIGURATION

On the underside of the FC7x00 there are bit switches available for configuration of the

unit. The label shown below indicates which fibre interface module is fitted, and also

shows the functions and default positions of the bit switches.

Figure 4: FC7x00 Base Labels

The functions of the bit switches are described below:

4.1 Bit Switch 1: Auto Negotiation

This bit switch controls the auto negotiation operation on the 10/100BaseT twisted pair

interface. When Enabled the port will automatically negotiate with the far end to find the

highest common operation mode. When Auto Negotiation is disabled, the port speed and

duplex modes are configured manually according to switch 2 and 4.

SW1-ON Auto Negotiation Disabled

SW1-OFF Auto Negotiation Enabled

Note, that when the FC7x00 is connected to a non auto negotiating port, the auto

negotiation algorithm can only determine the speed of the link and will always select half

duplex mode. Thus when used with full duplex ports auto negotiation should be disabled,

and the speed and duplex selected manually.

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4.2 Bit Switch 2: Speed 100/Speed 10

These two bit switches are used to select the port operating speed manually when auto

negotiation is disabled. This switch is ignored if auto negotiation is enabled.

The possible selections are:

SW-2 ON 100Mbps

SW-2 OFF 10Mbps

4.3 Bit Switch 4: Duplex

This bit switch manually selects the duplex mode for the port when auto negotiation is

disabled. This switch is ignored if auto negotiation is enabled.

SW4-ON Full Duplex

SW4-OFF Half Duplex

4.4 Bit Switch 5: Auto MDI/MDIX

This switch controls the auto crossover function on the twisted pair port. When enabled,

the port will detect the connection and automatically configure itself for either MDI or MDIX

presentation. When auto crossover is enabled, a normal patch cable may be used

whatever devices are being connected. When auto cross is disabled the RJ45 interface

presents a normal switch port with MDIX configuration.

SW5-ON Auto MDI/MDIX Crossover Enabled

SW5-OFF Fixed MDIX interface

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4.5 Bit Switch 7: Link State Forwarding

This bit switch controls the Link State Forwarding function. When LSF is enabled, a fault

on one port will propagate to the other port to alert the attached equipment that there is a

fault. A full description of LSF is found in section 6 of this guide. When LSF is disabled, a

fault on one port will not be forwarded.

SW7-ON Link State Forwarding Enabled

SW7_OFF Link State Forwarding Disabled

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5 FC7X00 STATUS LED INDICATORS

The FC7x00 rear panel has several status LED indicators to display the health and activity

of the unit. The rear panel is shown below:

Figure 5: FC7000 Rear panel

The function of the status LEDs is described below:

5.1 10/100BaseT Link/Act

The green Link / Act LED uses a combination of solid or flashing modes to indicate the

state of the link, and whether there is any activity on the link.

The LED indications are as below:

Link Down LED OFF

10/100M Link Up Green On

10/100M Link Active Green Flash

5.2 10/100BaseT Speed

The green Speed LED indicates the speed of the link

Speed 10M LED OFF

Speed 100M Green ON

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