D-Link DFE-854 - Transceiver - External User manual

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Fast Ethernet Transceivers
Model DFE-853, DFE-854
User’s Guide
August, 1997
6DFE853...01 Rev.01
Printed in Taiwan
RECYCLABLE

Trademarks
Copyright 1997 D-Link Corporation.
Contents subject to change without prior notice.
D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc.
All other trademarks belong to their respective proprietors.
Copyright Statement
No part of this publication may be reproduced in any form or by any means or
used to make any derivative such as translation, transformation, or adaptation
without permission from D-Link Corporation/D-Link Systems Inc., as
stipulated by the United States Copyright Act of 1976.
FCC Warning
This equipment has been tested and found to comply with 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 radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product may cause
radio interference in which case the user may be required to take adequate
measures.
VCCI A Warning

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LIMITED WARRANTY
Hardware:
D-Link warrants its hardware products to be free from defects in
workmanship and materials, under normal use and service, for the
following lengths of time from the date of purchase from D-Link
or its authorized reseller:
Product Type Warranty Period
Network adapters Lifetime
Unmanaged and managed hubs Lifetime *
Repeaters, 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 Customer an equivalent
product or part to replace the defective item. All products that are re-
placed will become the property of D-Link. Replacement products

may be new or reconditioned. Any replaced or repaired product or
part has a ninety (90) day warranty or the remainder of the initial
warranty period, whichever is longer.
D-Link shall not be responsible for any software, firmware,
information, or memory data of Customer contained in, stored on, or
integrated with any products returned to D-Link pursuant to any
warranty.
All products with lifetime warranty have a standard five-year
warranty. To qualify for lifetime warranty, the enclosed Product
Registration Card must be completed and returned to D-Link
within ninety (90) days of purchase.
Warranty service may be obtained 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 damaged during shipment. When returning the defective
product to D-Link for service, the RMA number must be marked
on the outside of the shipping package. Any product returned
without an RMA number shall be rejected and sent back to the
Customer, and D-Link reserves the right to have Customer bear
the cost of sending back such products. A service charge may or
may not be levied to Customer by D-Link. To find out if a

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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.

WARRANTIES EXCLUSIVE
IF THE D-LINK PRODUCT DOES NOT OPERATE AS WARRANTED
ABOVE, THE CUSTOMER'S SOLE REMEDY SHALL BE, AT D-LINK'S
OPTION, REPAIR OR REPLACEMENT. THE FOREGOING
WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, EITHER IN
FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE,
INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. D-LINK NEITHER ASSUMES NOR
AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER
LIABILITY IN CONNECTION WITH 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 INTHE PRODUCT DOESNOT 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 BY ACCIDENT, FIRE,
LIGHTNING OR OTHER HAZARD.
LIMITATION OF LIABILITY
IN NOEVENT WILL D-LINK BE LIABLE FOR ANY DAMAGES,
INCLUDING LOSS OF DATA, LOSS OF PROFITS, COST OF COVER OR
OTHER INCIDENTAL, CONSEQUENTIAL OR INDIRECT DAMAGES
ARISING OUT THE INSTALLATION, MAINTENANCE, USE,
PERFORMANCE, FAILURE OR INTERRUPTION OF A D- LINK

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PRODUCT, HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY. THIS LIMITATION WILL APPLY EVEN IF D-LINK HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
IF YOU PURCHASED AD-LINKPRODUCT INTHE UNITED STATES,
SOME STATES DO NOT ALLOWTHE LIMITATION OR EXCLUSION OF
LIABILITY FOR INCIDENTAL OR CONSEQUENTIALDAMAGES, SO
THE ABOVE LIMITATION MAY NOT APPLY TOYOU.

Rev.01 (August, 1997)
6DFE853...01
Printed in TaiwanThis guide provides basic information for
installation and use of D-Link Fast Ethernet transceiver models
DFE-853 and DFE-854.
Introduction
D-Link Fast Ethernet transceiver models DFE-853 and DFE-854
represent the best value on the market. These transceivers are IEEE
802.3u compliant and support both half- and full-duplex operation.
Diagnostic LEDs are on the front, with the 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 itself to the Ethernet speed (10 or 100) and
duplex mode (half or full) of the attached segment. When two auto-
negotiation devices with multiple capabilities are linked together,
they find their optimum common mode of operation.

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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

Features
DFE-853 10/100 Mbps Fast Ethernet Transceiver
•Conforms to the IEEE 802.3 10BASE-T and IEEE 802.3u
100BASE-TX standards.
•Supports Auto-negotiation.
•Data transfer rate: 10/100 Mbps.
•Supports transmission distances up to 100 meters.
•One MII connector and one RJ-45 connector.
•32 selectable PHY addresses (00h-1Fh).
•LED indicators allow for visual verification of speed, power,
data transmit, linkage, data receive, full/half-duplex and
collision functions.
•Operating 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 switch.
•One MII connector and one fiber optic SC connector.
1For full-duplex operation, the maximum
distance between two network devices is 2 km.
For half-duplex operation with CSMA/CD
protocol, the maximum distance between two
network devices is 412 meters.

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•32 selectable PHY addresses (00h-1Fh).
•LED indicators allow for visual verification of power,
data transmit, linkage, data receive, full/half-duplex and
collision functions.
•Operating 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
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
2For both the DFE-853 and the DFE-854, if the
attached device has management functionality
to control the MII interface, the specific

For the DFE-853 transceiver, switch F is used to set the
advertisement ability; for the DFE-854, switch F is used to set half-
or full-duplex mode. The FDX/HDX Indicator shows the result.
For the DFE-8533: set the switch F to the OFF position if the
attached device, such as a switch or a NIC card, has Auto-
negotiation capability 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 will advertise 10-
Mbps/Full-duplex and 10-Mbps/Half-duplex to
its link partner if switch F is set to the ON
position.

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LED Indicators
The DFE-853 and DFE-854 transceivers feature the following LED
indicators:
1. SPD Indicator (green) - for DFE-853 only
Steady green when transmission is at 100Mbps. It is off when
transmission is at 10Mbps.
Below are indicators 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.
Blinks when device is transmitting.

Connections
This section describes the general connection schemes for both
transceivers.
DFE-853
The DFE-853 Fast Ethernet transceiver can be used for making MII
to RJ-45 connections. The following figure shows in the foreground
a 10BASE-T/100BASE-TX 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
attached to an MII host device such as a hub or a switch.

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Appendices:
Appendix A
Select a PHY address(for DFE-853 and DFE-854)
Switches 1 through 5 are used to set PHY addresses.
PHY
Address DIP Switch #
SW1 SW2 SW3 SW4 SW5
00h OFF OFF OFF OFF OFF
01h OFF OFF OFF OFF ON
02h OFF OFF OFF ON OFF
03 h OFF OFF OFF ON ON
04h OFF OFF ON OFF OFF
05h OFF OFF ON OFF ON
06h OFF OFF ON ON OFF
07h 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 OFF ON
1Ah ON ON OFF ON OFF
1Bh ON ON OFF ON ON
1Ch ON ON ON OFF OFF
1Dh ON ON ON OFF ON
1Eh ON ON ON ON OFF
1Fh ON ON ON ON ON

Appendix B
Link Distance
Maximum distance between devices connected through
DFE-853 or DFE-854 transceivers are as follows. For further help,
please contact the establishment from which you purchased your
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 IHub 160.8M(HDX)
Switch-Class II Hub 208.8M(HDX)
Hub(Class II repeater)-Hub(Class II repeater) 16.2M

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NOTE

Offices
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Registration Card
Your name: Mr./Ms___________________________________________
Organization: ________________________Dept. __________________
Your title at organization:______________________________________
Telephone: ___________________________ Fax:__________________
Organization's full address:____________________________________
__________________________________________________________
Country:___________________________________________________
Date of purchase (Month/Day/Year):_____________________________
3URGXFW 0RGHO 3URGXFW 6HULDO 1R1-3URGXFW LQVWDOOHG LQ W\SH RI
FRPSXWHU +H1J1/ &RPSDT 7;9,
-3URGXFW LQVWDOOHG LQ
FRPSXWHU VHULDO 1R1
(* Applies to adapters only)
Product was purchased from:
Reseller's name:____________________________________________
Telephone:___ __________________ Fax:_______________________
Reseller's
full address___________________________________________________
___________________________________________________
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 does your organization use ?
†Fiber-optics †Thick coax Ethernet †Thin coax Ethernet
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