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The DFE-854 MII to 100BASE-FX multimode fiber transceiver
supports transmission distances up to 2 kilometers (full-duplex) and
412 meters (half-duplex). The DFE-854 transceiver only operates at
100Mbps

.

Network Cables Supported

The connectors and network cables supported by these two
transceivers are listed in the following table

:

Model

Connectors

Type of Network

Network Cable Supported

DFE-853

MII
RJ-45

10BASE-T
100BASE-TX

Cat 3, 4, 5 Twisted-Pair
Cat 5     Twisted-Pair

DFE-854

MII
Fiber SC

100BASE-FX

1300nm

62.5/125,50/125-um

Multimode fiber

Summary of Contents for DFE-853

Page 1: ...1 Fast Ethernet Transceivers Model DFE 853 DFE 854 User s Guide August 1997 6DFE853 01 Rev 01 Printed in Taiwan RECYCLABLE ...

Page 2: ...ith the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this user s guide may cause harmful interference to ra...

Page 3: ... MAUs transceivers Media converters Concentrators Three years One year Internetworking products Power supply and fans in these devices One year One year Other hardware products Spare parts and spare kits One year 90 days If a product does not operate as warranted during the applicable warranty period D Link shall at its option and expense 1 repair the defective product or part 2 deliver to Custome...

Page 4: ...by contacting a D Link office for a Return Material Authorization RMA number If a Product Registration Card has not been previously sent proof of purchase such as a copy of the dated purchase invoice must be provided Once an RMA number is issued the defective product must be shipped back to D Link prepaid insured and wrapped in the original or similar shipping package to ensure that it will not be...

Page 5: ...5 service charge is levied or not and the charged amount read the RMA that is returned to Customer or ask the D Link office when an RMA is requested ...

Page 6: ...ITH THE SALE INSTALLATION MAINTENANCE OR USE OF D LINK S PRODUCTS D LINK SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO REPAIR OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR ...

Page 7: ... APPLY EVEN IF D LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE IF YOU PURCHASED A D LINK PRODUCT IN THE UNITED STATES SOME STATES DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIALDAMAGES SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU ...

Page 8: ... cabling connectors for maximum visibility Transceivers provide additional media options for Fast Ethernet hubs switches bridges and routers equipped with MII ports A DFE 853 DFE 854 transceiver is recommended for a network device with a built in MII connector The DFE 853 MII to 10BASE T or 100BASE TX transceiver has the Auto negotiation function which means the transceiver automatically adjusts i...

Page 9: ...eiver only operates at 100Mbps Network Cables Supported The connectors and network cables supported by these two transceivers are listed in the following table Model Connectors Type of Network Network Cable Supported DFE 853 MII RJ 45 10BASE T 100BASE TX Cat 3 4 5 Twisted Pair Cat 5 Twisted Pair DFE 854 MII Fiber SC 100BASE FX 1300nm 62 5 125 50 125 um Multimode fiber ...

Page 10: ...ating temperature 0 55 degrees Celcius Storage Temperature 20 to 55 degrees Celsius Humidity 10 90 non condensing EMI certification FCC CE VCCI and C Tick DFE 854 100BASE FX Fast Ethernet Transceiver Conforms to the IEEE 802 3u 100BASE FX standard 100 Mbps data transfer rate Supports transmission distances up to 2 km full duplex and 412 meters half duplex 1 Full or half duplex mode selected by dip...

Page 11: ...ication FCC CE VCCI and C Tick DIP Switch The following figure shows the DIP switch on both DFE 853 and DFE 854 transceivers Switches 1 through 5 Switches 1 through 5 are used to set a PHY address For both the DFE 853 and the DFE 854 the user can select a PHY address see appendices number from 0 through 31 if an application requires a unique PHY address Switch F2 2 For both the DFE 853 and the DFE...

Page 12: ...ability or can communicate in full duplex mode set switch F to the ON position if the attached device such as a hub can communicate in half duplex mode only full half duplex mode can be set from the attached device 3 The DFE 853 will advertise 100 Mbs Full duplex 100 Mbps Half duplex 10 Mbps Full duplex and 10 Mbps Half duplex to its link partner if switch F is set to the OFF position The DFE 853 ...

Page 13: ...dicators for both DFE 853 and DFE 854 2 Col Indicator yellow A light up to indicate a collision has occurred 3 FDX HDX Indicator green Steady green indicates full duplex selected Dark indicates half duplex selected 4 Link Rx Indicator green Steady green indicates that a valid link exists Flashing green indicates that the transceiver is receiving 5 PWR Tx Indicator green Lights when power is on Bli...

Page 14: ... TP cable connected to the transceiver The transceiver s MII connector is attached to an MII host device such as a hub or a switch DFE 854 The DFE 854 Fiber Optic Fast Ethernet transceiver can be used for making connections between an MII port and fiber optic network cable The figure below shows in the foreground a fiber cable connected to the transceiver The transceiver s MII connector is attache...

Page 15: ...7h OFF OFF ON ON ON 08h OFF ON OFF OFF OFF 09h OFF ON OFF OFF ON 0Ah OFF ON OFF ON OFF 0Bh OFF ON OFF ON ON 0Ch OFF ON ON OFF OFF 0Dh OFF ON ON OFF ON 0Eh OFF ON ON ON OFF 0Fh OFF ON ON ON ON 10h ON OFF OFF OFF OFF 11h ON OFF OFF OFF ON 12h ON OFF OFF ON OFF 13h ON OFF OFF ON ON 14h ON OFF ON OFF OFF 15h ON OFF ON OFF ON 16h ON OFF ON ON OFF 17h ON OFF ON ON ON 18h ON ON OFF OFF OFF 19h ON ON OFF ...

Page 16: ...ur transceiver Network Devices with DFE 853 Transceivers Maximum Distance Switch Switch 100M HDX FDX Switch Hub Including Switch Uplink Port 100M HDX FDX Hub Class II repeater Hub Class II repeater 5M Network Devices with DFE 854 Transceivers Maximum Distance Switch Switch 2Km FDX 412M HDX Switch Class I Hub 160 8M HDX Switch Class II Hub 208 8M HDX Hub Class II repeater Hub Class II repeater 16 2...

Page 17: ...17 NOTE ...

Page 18: ... 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 S...

Page 19: ..._________________________________________ ___________________________________________________ Answers to the following questions help us to support your product 1 Where and how will the product primarily be used Home Office Travel Company Business Home Business Personal Use 2 How many employees work at installation site 1 employee 2 9 10 49 50 99 100 499 500 999 1000 3 What network medium media do...

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