PLANET FT-80x User Manual
1. Overview
Fast Ethernet Bridge
10/100Base-TX to 100Base-FX
TX RX
FX TX
100PWR
FDX/
COL
LNK/
ACT
FX Duplex
HDX FDX
5V DC
+
OFF ON
LFP
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Station
Media
Converter
Switch/Hub
Fiber
Cable
LFP OFFLFP ON
l LED lit = established link ° LED unlit = no link
FX Duplex
HDX FDX
5V DC
+
OFF ON
LFP
OFF ON
LFP
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Management
Station
Media
Converter
Switch/Hub
w/SNMP
TP TP
Fiber
Cable
LFP ONLFP ON
l LED lit = established link ° LED unlit = no link
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Management
Station
Media
Converter
Switch/Hub
w/SNMP
TP TP
Fiber
Cable
LFP ONLFP ON
l LED lit = established link ° LED unlit = no link
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Management
Station
Media
Converter
Switch/Hub
w/SNMP
TP TP
Broken
Fiber
Cable
LFP ONLFP ON
l LED lit = established link ° LED unlit = no link
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Station
Media
Converter
Switch/Hub
Fiber
Cable
LFP OFFLFP ON
l LED lit = established link ° LED unlit = no link
Media
Converter
Management
Station
Switch/Hub
w/SNMP
Station
Media
Converter
Management
Switch/Hub
TP TP
Broken
Fiber
LFP ONLFP ON
l LED lit = established link ° LED unlit = no link
Port 2 Port 1
Link Loss Carried Forward
Link Loss Returned
Link Loss Carried Forward
Note
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, efciently and inexpensively. This
converter can be used as a standalone unit or as a slide-in
module to the 10”/19” media chassis (up to 15 units) for a
TP and Fiber combined networks at a central wiring closet.
Please contact with your sales representative for more
about the 10/19” media chassis.
3. Checklist
Your FT-80X carton should contain the following items:
The Fast Ethernet Bridge Converter
AC-DC Power Adapter (Output: 5VDC, 2A max.)
This User’s Manual
If any item is missing or damaged, please consult the dealer
from whom you purchased your Fast Ethernet Converter.
4. Product Outlook
Right View
There are one RJ-45 Twisted-Pair jack (Auto-MDI/MDI-
X), one ber-optic connector (vary by model) and six LED
indicators.
5. Link Fault Pass through (LFP)
The LFP function includes the Link Fault Pass Through
function (LLCF/LLR) and the DIP Switch design. LLCF/LLR
can immediately alarm administrators the problem of the
link media and provide efcient solution to monitor the net.
The DIP Switch provides disable or enable the LFP function.
LLCF (Link Loss Carry Forward) means when a device
connected to the converter and the TP line loss the link,
the converter’s ber will disconnect the link of transmit.
LLR (Link Loss Return) means when a device connected
to the converter and the ber line loss the link, the
converter’s ber will disconnect the link of transmit. Both
can immediately alarm administrators the problem of the
link media and provide efcient solution to monitor the net.
Link Loss Return (LLR)
The ber ports of FT-80X have been designed with an LLR
function for troubleshooting a remote connection. LLR works
in conjunction with LLCF.
When LFP function is enabled *(by default), the port’s
transmitter shuts down when its receiver fails to detect a
valid receive link. LLR should only be enabled on one end
of the link and is typically enabled on either the unmanaged
or remote device.
The diagram below shows a typical network conguration
with a good link status using FT-80X for remote connectivity.
Note that LLR and LLCF are enabled as indicated in the
diagram.
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2. Model List
Your Fast Ethernet Converter comes with one of the
following models.
FT-801: on board ST ber connector
FT-802/S: on board SC ber connector
FT-803: on board MTRJ ber connector
FT-806A20: on board single SC ber connector
FT-806B20: on board single SC ber connector
Models with last character “S” indicate the ber-port is with
“Single-Mode” optic ber connector and followed with a
number indicates the maximum wiring distance.
In the following sections, the term “FT-80X” indicates the
product family above.
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Left View
One DIP switch for Fiber-optic operating mode selection,
FDX for full-duplex, and HDX for half-duplex.
Side View (FT-80X)
One DIP switch for Link Fault Pass Through (LFP) feature,
“ON” to turn-on the LLCF and LLR detection. And “OFF” to
turn –off this feature. Please refer to the following sections
for more.
- 5 -
Link Loss Carry Forward (LLCF)
FT-80X incorporates an LLCF function for troubleshooting a
remote connection. When LFP function is enabled, the FL/TP
ports do not transmit a link signal until they receive a link
signal from the opposite port.
The diagram below shows a typical network conguration
with a good link status using FT-80X for remote
connectivity.
If the connection breaks, FT-80X that link loss forward to
the switch/hub that generates a trap to the management
station. The administrator can then determine the source of
the problem.
- 7 -
If one of the optical conductors is bad (as shown in the
diagram box below), the converter with LLR function will
return a no-link condition to its link partner. With LLCF
function also enabled, the no-link condition is carried
forward to the switch/hub where a trap is generated to
the management station, and the administrator can then
determine the source of the loss.
LFP function is turn-on in default. This feature
can also be turned off via the side DIP-switch.
If you are familiar with the network installation
and for diagnostic purpose (i.e. check which
end is broken), you can turn it off and reset
the converter to make it take effect. Otherwise,
please remains it in the default position.
- 2 -
DIP Switch for LFP function.
- 4 -
*Units are shipped with the LFP function enabled (ON).
- 6 -
- 8 -
6. Installing the Converter
Fast Ethernet Bridge
10/100Base-TX to 100Base-FX
TX RX
FX TX
100PWR
FDX/
COL
LNK/
ACT
FX Duplex
HDX FDX
5V DC
+
OFF ON
LFP
RX
TX
FT-80X
TX
RX
10/100Base-TX
Cat.5/5e TP
Cable Network
100Base-FX
Fiber Network
Note
Note
Note
Note
8. LED Indication
Please follow these steps to install the converter:
• 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 ber cable from the FT-80X to the ber 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
1. RJ-45/STP, UTP Cat 5, straight/crossover cable
is accepted.
2. Please refer to section 9 for more about the
wiring distance of your TP, Optic-fiber networks.
LED Color Description
FX LNK
/ ACT
TX LNK
/ ACT
FX FDX/
COL
TX FDX/
COL
100 Green
PWR Green Lit: when +5VDC power detected
Green
Green
Green
Green
Fiber-optic Partner should be set to the correct
mode according to this FDX indicator for optimal
network performance.
Blinks: when any FX packets
transmitting and receiving
Lit: when Fiber connection is good
Blinks: when any TP packets
transmitting and receiving
Lit: when TP connection is good
Lit: when Full-duplex mode is enabled
in FX port
Blinks: indicate that the connection is
experiencing collisions
Lit: when Full-duplex mode is enabled
(detect by Auto-Negotiation) in TP
port
Blinks: indicate that the connection is
experiencing collisions
Lit: when the TP port runs in 100Mbps.
Remains off while LINK LED lit
represent the TP port runs in
10Mbps
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7. Duplex Mode Setting
The TP port of FT-80X supports duplex mode detection by
auto-negotiation (A-N). The following is the duplex mode
parameters:
Fast Ethernet Device
Ethernet / Fast Ethernet Hub Half-Duplex
Ethernet / Fast Ethernet Switch
(without A-N)
Fast Ethernet Devices *
Support Auto-Negotiation
There is a DIP-switch as in the left view as section 4. Please
check and follow the duplex mode of the ber device and
have the duplex selection to your FT-80X.
Normally, an A-N switch will detect and set to
full-duplex, where a dual-speed hub will detects
half.
- 10 -
FT-80X Duplex
Mode support
Half-Duplex
Full-Duplex /
Half-Duplex
- 11 -
9. Cable Connection Parameter
The limitations are as below:
Duplex Connection Limitation (max.)
Twisted Pair
Half / Full
Multi-Mode Converters
MM Half
MM Full
Single-Mode Converters*
(FT-80xynn; x= 2, 6; y= S, A, B; nn=km)
SM Full
Node to Node
Node to Switch/Hub
Node to Node
Node to Switch
Node to Node
Node to Switch
Node to Node
Node to Switch
1. Consult your local dealer for more about our
single mode fiber connectivity.
2. A model (TX: 1310nm; RX: 1510nm) and B
model (TX: 1510nm; RX: 1310nm) should
runs in pair.
100 meters
412 meters
2 kilometers
Depends on model
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10. FT-80X Technical Specications
The FT-80X comes with the following standard features:
• Standard:
FX
• Connectors:
One RJ-45 (Auto-MDI/MDI-X) Twisted Pair, EIA568
One Fiber-optic, 1310nm wavelength (except: FT-806A/
FT-806B), connector-type vary with model
• Data Transfer Rate:
• Duplex mode support:
Auto-Negotiation (TP)
• LED indicators:
TP LNK/ACT, TP FDX/COL
• Power Requirement:
• Ambient Temperature:
• Humidity:
• Dimension:
• Cable:
UTP: Cat 5 UTP cable
Fiber: MM: 50/125µm or 62.5/125µm optic ber
Fiber: SM: 8.3/125, 8.7/125, 9/125µm optic ber
Connecting to Router, Bridge, or Switch, Hub, please refer
to the device’s Technical Manual.
IEEE 802.3/u, 10/100Base-TX and 100Base-
10/100Mbps (TP), 100Mbps (FX)
Full or half-duplex mode by
PWR, FX LNK/ACT, FX FDX/COL TP 100,
5V DC, 2A
0° to 50°C (operating)
5% to 90% (non-condensing)
26 x 70 x 97mm (H x W x D)
11. 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.
Energy Saving Note of the Device
This power required device does not support Standby mode
operation.
For energy saving, please remove the DC-plug or push the
hardware Power Switch to OFF position to disconnect the
device from the power circuit.
Without remove the DC-plug or switch off the device, the
device will still consume power from the power source. In
the view of Saving the Energy and reduce the unnecessary
power consuming, it is strongly suggested to power off
or remove the DC-plug for the device if this device is not
intended to be active.
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