D-Link DFE-855 Manuale utente

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This guide provides basic information on the installation

and use of D-Link converter model DFE-855.



The D-Link DFE-855 100BASE-TX to Fiber Optic

100BASE-FX Converter represents the best value on the

market. The converter is IEEE 802.3u 100BASE-TX and

100BASE-FX compliant, mediates between a 100BASE-TX

segment and a 100BASE-FX segment, and supports both

full-duplex and half-duplex operation. The DFE-855

converter supports transmission distances of up to 2

kilometers in full-duplex mode (please refer to the section

entitled Connections and Communication Mode).

Diagnostic LEDs on the DFE-855 provide indication of

power, linkage and data reception.

Network Cables Supported

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The connectors and network cables supported by the

converter are listed in the following table:

Connector Type of

Network

Network Cable

Supported

RJ-45

100BASE-TX Cat 5 Twisted-Pair

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Fiber SC 100BASE-FX 1300nm

62.5/125, 50/125-um

Multimode fiber



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   Fiber Optic 

Converter



• Conforms to the IEEE 802.3u 100BASE-TX and

100BASE-FX standards.

• 100Mbps data transfer rate.

• Supports transmission distances of up to 2 km

(full-duplex).

• One fiber optic SC connector and one RJ-45 connector.

(Refer to Appendix C: RJ-45 Pin Specifications.)

• LED indicators allow for visual verification of power,

linkage and data received.

• Operating temperature: 0 to 55 degrees Celsius.

• Storage Temperature: -25 to 55 degrees Celsius.

• Humidity: 5%- 90% (non-condensing)

• EMI Certification: CE, FCC A, VCCI A and C-Tick.

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The DFE-855 converter features the following LED

indicators:

1. TX Link/Rx Indicator (green)

Steady green indicates that a valid link exists.

Flashing green indicates that the converter is

receiving data from the RJ-45 connector.

2. PWR Indicator(green)

Lights when power is on.

3. FX Link/Rx Indicator (green)

Steady green indicates that a valid link exists.

Flashing green indicates that the converter is

receiving data from the Fiber Optic connector.



Open the shipping carton and carefully remove all items. In

addition to this User's Guide, ascertain that you have:

• One DFE-855 Converter

• One DC power adapter (The specifications for this

adapter appear in Appendix A)

• AC Power Cord

In the event that you find any mismatched, damaged or

missing item, promptly contact your dealer for replacement

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

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The figure below shows the basic connection scheme for the

DFE-855.

A network device (a server, workstation, router, switch)

with a 100BASE-TX port is connected to the DFE-855's

RJ-45 jack through a twisted-pair cable; a device with a

100BASE-FX port is connected to the DFE-855's SC jack

through a fiber-optic cable; and the supplied AC power

adapter is connected to the DFE-855's DC power jack. The

figure shows the maximum possible distance between the

two devices: 2,100 meters. Note that the network ports on

both devices must be explicitly set to full-duplex mode to

allow the use of a cable of up to 2,000 meters long on the

100BASE-FX side.

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Appendices:

Appendix A



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  





  

  !

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

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Appendix B

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

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

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 

 

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 

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   

  ≤

≤≤

≤

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≤≤

≤

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

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≤



≤

≤≤

≤

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,(

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



Appendix C

RJ-45 Pin Specifications.

The following diagram and table show the

standard RJ-45 connector and their pin

assignments.

The standard RJ-45 connector



 

 "#$%!&'

 "#%!&'

( )#$%'

 *

 *

 )#%'

+ *

, *









Pinout descriptions for straight-through and

crossover cables are shown in the following

figures.





Offices



U.S.A. D-LINK SYSTEMS, INC.

5 Musick Irvine, CA 92618 USA

TEL: 1-714-455-1688 FAX: 1-714-455-2521

CANADA D-LINK CANADA, INC.

2180 Dunwin Drive, Unit # 6,

Mississauga Ontario, L5L 5M8, Canada

TEL: 1-905-828-0260 FAX: 1-905-828-5669

U.K. D-LINK (EUROPE) LTD.

D-Link House, 6 Garland Road, Stanmore, London HA7 1DP

TEL: 44-181-235-5555 FAX: 44-181-235-5500

GERMANY D-LINK (DEUTSCHLAND) GMBH I.G.

Bachstrae 22, 65830 Kriftel Germany

TEL: 49-6192-97110 FAX: 49-6192-971111

FRANCE D-LINK FRANCE

Le FLORILEGE #2, Allee de la Fresnerie

78330 Fontenay Le Fleury France

TEL: 33-1-3023-8688 FAX: 33-1-3023-8689

SWEDEN D-LINK A/B

World Trade Center P. O. Box 70396, 107 24 Stockholm

TEL: 46-8-700--6211 FAX: 46-8-219-640

DENMARK D-LINK DENMARK

Naverland 2 DK-2600 Glostrup Copenhagen, Denmark

TEL:45-43-969-040 FAX:45-43-424-347

SINGAPORE D-LINK SINGAPORE PTE.LTD.

77 Science Park Drive #03-03 CINTECH III,

Singapore Science Park Singapore 118256

EL : 65-774-6233 FAX: 65-774-6322

AUSTRALIA D-LINK AUSTRALIA PTY.LTD.

Unit 16, 390 Eastern Valley Way Roseville, NSW 2069

TEL: 61-2-9417-7100 FAX: 61-2-9417-1077

CHINA D-LINK BEIJING

15th Floor, Science & Technology Tower

11, Baishiqiao Road, Haidian District, Beijing 100081

TEL: 86-10-68467106-9 FAX: 86-10-68467110

JAPAN D-LINK TOKYO

10F, 8-8-15 Nishigotanda, Shinagawa-ku, Tokyo, 141

TEL: 81-3-5434-9678 FAX: 81-3-5434-9868

INDIA D-LINK (INDIA) PVT. LTD.

Bombay Office: Plot No.5, Kurla-Bandra Complex Rd.

Off Cst Rd., Santacruz (E) Bombay - 400 098 India

TEL: 91-22-6172478 FAX: 91-22-6172476

TAIWAN D-LINK TAIWAN

2F, No.233-2 Pao-Chiao Rd, Hsin-Tien, Taipei,

Taiwan, R.O.C.

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