
10/100Base-TX to 100Base-FX
TP to Fiber
Ethernet Bridge Converter

Trademarks
Copyright PLANET Technology Corp. 2000.
Contents subject to revision without prior notice.
PLANET is a registered trademark of PLANET Technology Corp.
The information in this manual is subject to change without notice.
All other trademarks belong to their respective owners.
FCC Warning
This equipment has been tested and found to comply with the
regulations 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.
Revision
User's manual for PLANET Fast Ethernet Converter
Multi-mode: FT-801, FT-802
Single-mode: FT-802S
Rev 1.0 (Oct. 2000)
Part No. EMFT801

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1. Overview
Thank you for purchasing PLANET FT-80X family 10/100Mbps
Ethernet Twisted pair to 100Base-FX Fiber-optic Bridge
Converter. This converter is used to convert one type media signal
to other type equivalent that allows two type segments connect
easily, efficiently and inexpensively. This converter can be used as
a standalone unit or as a slide-in module to the 19” media chassis
(up to 10 units) for a TP and Fiber combined networks at a central
wiring closet. Please contact with your sales representative for
more about the 19” media chassis.
2. Model List
Your Fast Ethernet Converter comes with one of the following
models.
ð FT-801 : on board ST fiber connector
ð FT-802/S : on board SC fiber connector
Models with last character “S” indicate the fiber-port is with
“Single-Mode” optic fiber connector.
In the following sections, the term “FT-80X” indicates the product
family above.
3. Checklist
Your FT-80X carton should contain the following items:
ð The Fast Ethernet Bridge Converter
ð AC-DC Power Adapter (Output: 5VDC, 2 A max.)
ð This user’s guide
If any item is missing or damaged, please consult the dealer from
whom you purchased your Fast Ethernet Converter.

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4. Product Outlook
Right View
One RJ-45
Twisted-Pair
jack, one
fiber-optic
connector and
six LED
indicators.
Left View
One DC jack for
DC power input.
One DIP switch
for Fiber-optic
mode selection,
FDX for
full-duplex, and HDX for falf-duplex.
Side View
DTE MPR
One DIP Switch for TP Device selection.
5. Installing the Converter
Please follow these steps to install the converter:

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• Turn off the power of the device/station in a network to which
the FT-80X will be attached
• Ensure that there is no activity in the network
• Attach fiber cable from the FT-80X to the fiber network. TX,
RX must be paired at both ends
• Attach a Cat. 5 UTP cable from the 10/100Base-TX network
to the RJ-45 port on the FT-80X.
• Connect the 5VDC power adapter to the FT-80X and verify
that the Power LED lights up.
• Turn on the power of the device/station, the TX Link and FX
Link LEDs should light when all cables are attached
FT-80X
10/100Base-TX
Cat. 5/5e TP
Cable Network
100Base-FX
Fiber Network
10/100Base-TX to 100Bas-FX
Note:
n RJ-45/STP, UTP Cat 5, straight-through cable is accepted
n Cabling from FT-80X TP port to a TP device is as below:
q To Workstation: DIP switch on DTE
q To Hub/Switch: DIP switch on MTR
n Please refer to section 8 for more about the wiring distance of
your TP, Optic-fiber networks.

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6. Duplex Mode setting
The TP port of FT-80X support duplex mode detection by
auto-negotiation (A-N). The following is the duplex mode
parameters:
Fast Ethernet Device FT-80X Duplex
Mode support
Ethernet / Fast Ethernet Hub Half-Duplex
Ethernet / Fast Ethernet Switch (without A-N) Half-Duplex
Fast Ethernet Devices *
Support Auto-Negotiation
Full-Duplex /
Half-Duplex
Note: Normally, an A-N switch will detect and set to
full-duplex, where a dual-speed hub will detects Half.
There is a DIP-switch as in the left view above. Please check
and follow the duplex mode of the fiber device and have the
duplex selection to your FT-80X.
7.LED indication
LED COLOR
DESCRIPTION
Blinks when any FX packets transmitting
Lit when Fiber connection is good
Blinks when any FX packets receiving
Blinks when any TP packets transmitting
Lit when TP connection is good
Blinks when any TP packets receiving
FDX/COL* Green Lit when Full-duplex mode is enabled in
FX port and blink shows collision detected.
100 Green Lit when the port runs in 100Mbps.
Remains off while LINK LED lit represent

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the port runs in 10Mbps
PWR Green Lit when +5VDC power detected
Note: Fiber-optic Partner should be set to the correct mode
according to this FDX indicator for optimal network performance.
8. Cable Connection Parameter
The limitations are as below:
Duplex Connection Limitation (max.)
Twisted Pair
Half / Full Node to Node
Node to Switch/Hub
100 meters
Multi-Mode Converters
MM Half Node to Node
Node to Switch
412 meters
MM Full Node to Node
Node to Switch
2 kilometers
Single-Mode Converters (FT-80XS)
SM Full Node to Node
Node to Switch
20 kilometers
9. FT-80X Technical Specifications
The FT-80X comes with the following standard features:
• Standard : IEEE802.3/u, 10/100Base-TX and 100Base-FX
• Connectors :
ð One RJ-45 Twisted Pair, EIA568
ð One Fiber-optic, 1300nm wavelength, connector-type vary
with model
• Data Transfer Rate : 10/100Mbps ( TP), 100Mbps (FX)

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• Duplex mode support : Full or half-duplex mode by Auto-
Negotiation (TP)
• LED indicators : PWR, TX Link/ACT, FX
Link/ACT, FDX, 100, FDX
• Power Requirement : 5V DC, 2A
• Ambient Temperature: 0° to 50°C (operating)
• Humidity : 5% to 90% (non-condensing)
• Dimension : 26 x 70 x 97mm (HxWxD)
• Cable:
ð UTP : Cat 5 UTP cable
ð Fiber : MM: 50/125 µm or 62.5/125 µm optic fiber
ð Fiber : SM: 8.3/125, 8.7/125, 9/125 µm optic fiber
Connecting to Router, Bridge, or Switch, Hub, please refer to the
device’s Technical Manual.
10. Power information
The power jack of FT-80X is with 2.5mm in the central post and
required +5VDC power input. It will conform to the bundled
AC-DC adapter and Planet’s Media Chassis. Should you have the
problem to make the power connection, please contact your local
sales representative.
Please keep the AC-DC adapter as spare parts when your FT-80X
is installed to a Media Chassis.
Part No.:EM-FT801
ISO9002