The SBFTF10xx-12x 6-port Ethernet/fast Ethernet bridging media converter allows
connection of 10Base-T Ethernet and/or 100Base-TX fast Ethernet twisted-pair
copper network devices to network devices on a 100Base-FX fast Ethernet fiber
network.
Part NumberCopper - five (5) ports
10Base-T/100Base-TX
SBFTF1011-120RJ-45
100 m (328 ft)*
SBFTF1013-120RJ-45
100 m (328 ft)*
SBFTF1014-120RJ-45
100 m (328 ft)*
SBFTF1015-120
(long haul)
SBFTF1016-120
(extra long haul)
SBFTF1017-120
(long wave length)
SBFTF1018-120RJ-45
SBFTF1025-120RJ-45
* Typical maximum cable distance.
Actual distance is dependent upon the
physical characteristics of the network.
RJ-45
100 m (328 ft)*
RJ-45
100 m (328 ft)*
RJ-45
100 m (328 ft)*
100 m (328 ft)*
100 m (328 ft)*
Duplex Fiber-Optic - one (1) port
100Base-FX
ST, 1300 nm multimode
2 km (1.2 miles)*
SC, 1300 nm multimode
2 km (1.2 miles)*
SC, 1310 nm single mode
20 km (12.4 miles)*
SC, 1310 nm single mode
40 km (24.8 miles)*
SC, 1310 nm single mode
60 km (37.2 miles)*
SC, 1550 nm single mode
80 km (49.7 miles)*
MT-RJ, 1300 nm multimode
2 km (1.2 miles)*
MT-RJ, 1310 nm single mode
5 km (3.1 miles)*
Installation . . . . . . . . . . . . . . . . . .2
Operation . . . . . . . . . . . . . . . . . . .8
Cable Specifications . . . . . . . . . .11
Technical Specifications . . . . . . .13
Troubleshooting . . . . . . . . . . . . .14
Compliance Information . . . . . . .15
Contact Us . . . . . . . . . . . . . . . . .16
SBFTF10xx-12x
Part NumberCopper - five (5) ports
10Base-T/100Base-TX
SBFTF1029-120 RJ-45
100 m (328 ft)*
SBFTF1029-121 RJ-45
100 m (328 ft)*
SBFTF1029-122 RJ-45
100 m (328 ft)*
SBFTF1029-123 RJ-45
100 m (328 ft)*
Fiber-Optic - one (1) port
Single Fiber
SC, 1310 nm (TX)/1550 nm (RX)
single mode, 20 km (12.4 miles
SC, 1550 nm (TX)/1310 nm (RX)
single mode, 20 km (12.4 miles)*
SC, 1310 nm (TX)/1550 nm (RX)
single mode, 40 km (24.8 miles)*
SC, 1550 nm (TX)/1310 nm (RX)
single mode, 40 km (24.8 miles)*
*Typical maximum cable distance. Actual distance is dependent upon the
physical characteristics of the network. (TX) = transmit (RX) = receive
** SBFTF1029-120 and -121 are intended to be installed in the same network
where one is the local converter and the other is the remote converter.
*** SBFTF1029-122 and -123 are intended to be installed in the same network
where one is the local converter and the other is the remote converter.
The chassis version of the media converter is CBFTF10xx-12x. For more
information, see the CBFTF10xx-12x user’s guide on-line at: www.transition.com.
Installation
Copper and Fiber Ports
The figure below illustrates the locations of the five (5) twisted-pair copper ports
and the one (1) fiber port.
Installation -- Continued
Set the Dip Switches
The dip switches are located on the side of the media converter. Use a small,
flat-blade screwdriver or a similar device to set each dip switch.
“SW1” switches 1 - 6
Dip switches 1, 2, and 3 apply only to twisted-pair copper port 1 (TP1).
Dip switch 4 applies to fiber port 1 (F1).
Dip switch 5 applies to all twisted-pair copper ports (TP1, TP2, TP3, TP4, TP5).
Dip switch 6 is not in use.
“Config. Switches” 1 - 4
Dip switches 1, 2, 3, and 4 apply only to twisted-pair copper port 2 (TP2).
NOTE: Switches 1, 2, and 3 apply only to twisted-pair copper port 1 (TP1).
1. Twisted-Pair Auto-Negotiation
Up (Enabled) - The media converter “advertises”
ALL rate and mode capabilities to the network:
• 100Mb/s full-duplex • 100Mb/s half-duplex,
• 10Mb/s full-duplex • 10Mb/s half-duplex.
Down (Disabled) - The bridging media converter
does not “advertise” the rate and mode capabilities
to the network. Switches 2 and 3 are then used to
set the twisted-pair rate and mode.
Down (10Base-T) - Sets the twisted-pair rate to
10Base-T.
3. Twisted-Pair Mode
Up (Full-Duplex) - The twisted-pair cable
distances are constrained by the cable
requirements (see pages 1 and 2).
Down (Half-Duplex): - The twisted-pair cable
distances are constrained by the 512-Bit Rule (see
page 9).
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
2
UP
Twisted-pair 100Base-TX
DOWN
Twisted-pair 10Base-T
3
UP
Twisted-pair Full-Duplex
DOWN
Twisted-pair Half-Duplex
3
SBFTF10xx-12x
F
Installation -- Continued
Set the Dip Switches -- Continued
NOTE: Dip switch 4 (in the “SW” set) applies to fiber port 1 (F1).
4. Fiber Mode (Fiber Port 1)
Up (Full-Duplex) - The cable distances for fiber port
1 (F1) are constrained by the cable requirements (see
pages 1 and 2).
Fiber Full-Duplex
Down (Half-Duplex) - The cable distances for fiber
port 1 (F1) are constrained by the 512-Bit Rule (see
page 9).
Fiber Half-Duplex
NOTE: DIP switch 5 (in the “SW” set) applies to ALL twisted-pair copper ports
(TP1, TP2, TP3, TP4, TP5).
5. AutoCross
Up (Enable) - The media converter connects
automatically to either straight-through or crossover
twisted-pair copper cable.
Down (Disable) - Either straight-through or crossover
twisted-pair copper cable must be installed,
according to the site requirements
AutoCross Enable
AutoCross Disable
4
UP
DOWN
5
UP
DOWN
Installation -- Continued
Set the Dip Switches -- Continued
NOTE: Dip switches 1, 2, 3, and 4 (in the Config. Switches set) apply ONLY to
twisted-pair copper port 2 (TP2).
1. Twisted-Pair Auto-Negotiation
Up (Enabled) - The media converter “advertises”
ALL rate and mode capabilities to the network:
• 100Mb/s full-duplex • 100Mb/s half-duplex,
• 10Mb/s full-duplex • 10Mb/s half-duplex.
Down (Disabled) - The bridging media converter
does not “advertise” the rate and mode
capabilities to the network. Switch 2 and switch 3
are then used to set the twisted-pair rate and mode.
2. Twisted-Pair Rate
Up (100Base-TX) - Sets the twisted-pair rate to
100Base-TX.
Down (10Base-T) - Sets the twisted-pair rate to
10Base-T.
distances are constrained by the cable
requirements (see pages 1 and 2).
Twisted-Pair Full-Duplex
Down (Half-Duplex) - The twisted-pair cable
distances are constrained by the 512-Bit Rule (see
page 9).
Twisted-Pair Half-Duplex
4. Monitor for Twisted-Pair Port 2 (TP2)
Up (Off) - The twisted-pair port 2 (TP2) functions
as directed by switches 1, 2, and 3.
Down (On) - The twisted-pair port 2 (TP2)
functions as a “sniffer” port and transmits all
packets received from ports F1 and TP1.
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
Monitor on TP2 OFF
Monitor on TP2 ON
3
UP
DOWN
4
UP
DOWN
5
SBFTF10xx-12x
Installation -- Continued
•If half-duplex mode is used, refer to the 512-Bit Rule (see page 9).
•If full-duplex mode is used, the 512-Bit Rule does not apply. The cable
lengths are constrained by the cable requirements (see pages 1 and 2).
Connect the Fiber Cable
1.Locate or build IEEE 803.2™ compliant 100Base-FX fiber cable with
male, two-stranded TX to RX connectors installed at both ends.
2.Connect the fiber cables to the SBFTF10xx-12x media converter as
described:
•Connect the male TX cable connector to the female TX port.
•Connect the male RX cable connector to the female RX port.
3.Connect the fiber cables to the other device (another media converter,
hub, etc.) as described:
•Connect the male TX cable connector to the female RX port.
•Connect the male RX cable connector to the female TX port.
Connect the fiber cable
to the media converter
as shown.
RX
TX
Connect the fiber cable
to the other device
(media converter,
hub, etc.) as shown
RX
TX
Installation -- Continued
Connect the Twisted-Pair Copper Cable
The AutoCross feature allows either MDI (straight-through) or MDI-X
(crossover) cable connections to be configured automatically, according to the
network conditions.
1. Locate or build IEEE 803.2™ compliant 10Base-T or 100Base-TX cables,
with male, RJ-45 connectors installed at both ends.
2.Connect the RJ-45 connector at one end of the cable to the RJ-45 port on
the SBFTF10xx-12x media converter.
3.Connect the RJ-45 connector at the other end of the cable to the RJ-45
port on the other device (switch, workstation, etc.).
RJ-45 port
on the media
converter
Power the Media Converter
NOTE: The external power supply provided with this product is UL listed by
the power supply’s manufacturer.
RJ-45 port
on the other device
(switch, work station, etc.)
AC
1.Connect the barrel connector on the power adapter to the media
converter’s power port (located on the back of the media converter).
2.Connect the power adapter plug to AC power.
3.Verify that the media converter is powered by observing the illuminated
LED power indicator light.
DC
Consult the user’s guide for the Transition Networks SPS1872-xx DC external
power supply for powering the media converter.
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
7
SBFTF10xx-12x
0
Operation
Status LEDs
Use the status LEDs next to the fiber ports to monitor the media converter and
the fiber network connections.
PWR
LACT
FD
F(ull) D(uplex)
On = Full-duplex connection.
Off = Half-duplex connection.
L(ink) ACT(ivity)
On = Fiber link connection.
Flashing = Fiber network activity.
P(o)W(e)R
On = Connection to external AC or DC power.
Use the bi-color twisted-pair status LEDs to monitor the twisted-pair copper
network connections.
Duplex/Link LED
Amber = A link on the half-duplex twisted-pair
copper link.
Flashing Amber = Activity on the half-duplex
copper link.
Green = A link on the full-duplex twisted-pair
copper link.
Flashing Green = Activity on the full-duplex
copper link.
Speed LED
Amber = 10Mb/s operation.
Green = 100Mb/s operation.
The “FD” and “LACT” LEDs near the bottom of the media
converter refer to Fiber Port 1 (F1).
1
Duplex/Link Speed
10/100TX
Operation -- Continued
Product Features
Full-Duplex Network
In a full-duplex network, maximum cable lengths are determined by the type
of cables that are used. See pages 1 and 2 for the cable specifications for the
different SBFTF10xx-12x models.
The 512-Bit Rule does not apply in a full-duplex network.
Half-Duplex Network (512-Bit Rule)
In a half-duplex network, the maximum cable lengths are determined by the
round trip delay limitations of each fast Ethernet collision domain. (A
collision domain is the longest path between any two terminal devices, e.g. a
terminal, switch, or router.)
The 512-Bit Rule determines the maximum length of cable permitted by
calculating the round-trip delay in bit-times (BT) of a particular collision
domain. If the result is less than or equal to 512 BT, the path is good.
For more information on the 512-Bit Rule, see the white paper titled
“Collision Domains” on the Transition Networks website at:
www.transition.com.
Distance Extension
The SBFTF10xx-12x 6-point bridging media converter segments up to five (5)
10Base-T copper Ethernet and/or 100Base-TX copper fast Ethernet and one
(1) 100Base-FX fiber fast Ethernet collision domains.
In a half-duplex Ethernet or fast Ethernet environment, the SBFTF10xx-12x
media converter extends network distances by segmenting collision domains
so that the 512-Bit Rule applies separately to each collision domain (see page
9).
In a full-duplex Ethernet or fast Ethernet environment, the SBFTF10xx-12x
media converter extends network distances to the physical cable limitations
imposed by the selected twisted-pair copper fiber cables (see pages 1 and 2).
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
9
SBFTF10xx-12x
Operation -- Continued
Product Features -- Continued
Rate Conversion
The SBFTF10xx-12x media converter allows connection of 10Mb/s terminal
devices on a 10Base-T legacy Ethernet copper network to 100Mb/s terminal
devices on a 100Base-TX fast Ethernet copper network and/or to 100Mb/s
terminal devices on a 100Base-FX fast Ethernet fiber network.
Congestion Reduction
The SBFTF10xx-12x media converter does not forward collision signals or
error packets from one collision domain to another, improving baseline
network performance. In addition, the media converter filters packets
destined for local devices, also reducing network congestion.
Auto-Negotiation
The Auto-Negotiation feature allows the SBFTF10xx-12x media converter to
automatically configure itself to achieve the best possible mode of operation
over a link. The media converter broadcasts its speed (10 Mb/s or 100 Mb/s)
and duplex capabilities (full or half) to the other devices and negotiates the
best mode of operation. Auto-Negotiation allows quick and easy installation
because the optimal link is established automatically.
A scenario where the media converter is linked to a non-negotiating device is
a case where the user may want to disable Auto-Negotiation. In this instance,
the mode of operation will drop to the least common denominator between
the two devices (e.g.: 10 Mb/s, half-duplex). Disabling this feature gives the
user the ability to force the connection to the desired speed and duplex mode
of operation.
AutoCross™
When the AutoCross feature is activated, it allows either straight-through
(MDI) or crossover (MDI-X) copper cables to be used when connecting to
10Base-T or 100Base-TX devices. AutoCross determines the characteristics of
the connection and automatically configures the unit to link up, regardless if
the copper cable is MDI or MDI-X configuration. (Transition networks
recommends leaving the device in the default “enable” mode.)
Cable Specifications
The physical characteristics must meet or exceed IEEE 802.3™ specifications.
Fiber Cable
Bit Error Rate: <10-9
single mode fiber (recommended):9 µm
Multimode fiber (recommended):62.5/125 µm
Multimode fiber (optional): 100/140, 85/140, 50/125 µm
Fiber-optic Transmitter Power:min: -8.0 dBmmax: -3.0 dBm
Fiber-optic Receiver Sensitivity:min: -33.0 dBmmax: -3.0 dBm
Link Budget:25.0 dB
The fiber optic transmitters on this device meets Class I Laser safety
requirements per IEC-825/CDRH standards and complies with 21
CFR1040.10 and 21CFR1040.11.
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
11
SBFTF10xx-12x
Cable Specifications -- Continued
Copper Cable
Category 3: (Minimum requirement for 10 Mb/s operation)
Gauge24 to 22 AWG
Attenuation 11.5 dB/100m @ 5-10 MHz
Maximum Cable Distance100 meters
Category 5: (Minimum requirement for 100 Mb/s operation)
Gauge24 to 22 AWG
Attenuation 22.0 dB /100m @ 100 MHz
Maximum Cable Distance100 meters
• Straight-through (MDI) or crossover (MDI-X) twisted-pair cable may
be used.
• Shielded (STP) or unshielded (UTP) twisted-pair cable may be used.
• Pins 1&2 and 3&6 are the two active pairs in an Ethernet network .
• Use only dedicated wire pairs for the active pins:
(e.g., blue/white & white/blue, orange/white & white/orange, etc.)
• Do not use flat or silver satin wire.
Straight-Through Cable
Twisted Pair #1
Twisted Pair #2
1
2
3
6
1
2
3
6
Twisted Pair #1
Twisted Pair #2
Crossover Cable
1
2
3
6
Technical Specifications
For use with Transition Networks Model SBFTF10xx-12x or equivalent.
StandardsIEEE 802.3™
Data Rate10 Mb/s, 100 Mb/s
Dimensions3.25" x 1.75" x 4.8" (82 x 43 x 122 mm)
Weight13 oz. (369 g) (approximate)
Power Consumption4.95 watts
Power Supply 12VDC, 0.8 A (N. America, Europe, Japan, UK)
12VDC, 1.25 A (Latin Am., Australia, N.Z., S. Africa)
The external power supply provided with this product
is UL listed by the power supply’s manufacturer.
MTBF48,000 hours (MIL217F2 V5.0) (MIL-HDBD-217F)
129,000 hours (Bellcore7 V5.0)
Packet Size:Unicast MAC addresses: 4K
Memory: 256K bytes (2 Mbit)
Maximum packet size: 1536 bytes
1
2
3
6
EnvironmentTmra*:0 to 50°C (32 to 122°F )
Storage Temp: -20 to 85°C (-4 to 185°F)
Humidity: 5 to 95%, non condensing
Altitude:0 to 10,000 feet
WarrantyLifetime
*Manufacturer’s rated ambient temperature.
Optional Accessories (sold separately)
Part Number Description
SPS-1872-SAOptional External Power Supply; 18-72VDC Stand-Alone
Output: 12.6VDC, 1.0 A
SPS-1872-DPS Optional External Power Supply; 18-72VDC Piggy-back;
Output: 12.6VDC, 1.0 A
WMBLOptional Wall Mount Brackets; Length: 4.7in. (119mm)
WMBVOptional Vertical Mount Bracket; Length: 5.0in. (127mm)
WMBDOptional DIN Rail Mount Bracket; Length: 5.0in. (127mm)
WMBD-FOptional DIN Rail Mount Bracket (flat); Length: 3.3in. (84mm)
The information in this user’s guide is subject to change. For the most up-to-date
information, view the user’s guide on-line at: www.transition.com.
Product is certified by the manufacturer to comply with DHHS Rule 21/CFR,
Subchapter J applicable at the date of manufacture.
CAUTION: Visible and invisible laser radiation when open. Do not stare into
the beam or view directly with optical instruments.
CAUTION: Use of controls, adjustments or the performance of procedures other
than those specified herein may result in hazardous radiation exposure.
techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.
13
SBFTF10xx-12x
Troubleshooting
If the media converter fails, isolate and correct the failure by determining the
answers to the following questions and then taking the indicated action:
1.Is the power LED on the media converter illuminated?
NO
•Is the power adapter the proper type of voltage and cycle frequency
for the AC outlet? (See “Power Supply” on page 13.)
•Is the power adapter properly installed in the media converter and in
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 the instruction manual, 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 the user's own expense.
Canadian Regulations
This digital apparatus does not exceed the Class A limits for radio noise for digital apparatus
set out on the radio interference regulations of the Canadian Department of Communications.
Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la Class A prescrites dans le Règlement sur le
brouillage radioélectrique édicté par le ministère des Communications du Canada.
European Regulations
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.
Achtung! Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können
bei Betrieb dieses Gerätes Rundfunkstörungen auftreten. In diesem Fäll ist der Benutzer für
Gegenmaßnahmen verantwortlich.
Attention! Ceci est un produit de Classe A. Dans un environment domestique, ce produit
risque de créer des interférences radioélectriques, il appartiendra alors à l'utilsateur de
prende les measures spécifiques appropriées.
VCCI Class 1 Compliance
This equipment is in the 1st Class category (information equipment to be used in commercial
and/or industrial areas) and conforms to the standards set by the Voluntary Control Council
For Interference by Data Processing
Equipment and Electronic Office
Machines aimed at preventing radio
interference in commercial and/or
industrial areas. When used in a
residential area or in an adjacent area
thereto, interference may be caused to
radio and TV receivers, etc. Read the
instructions for correct handling.
CAUTION: RJ connectors are NOT INTENDED FOR CONNECTION TO THE
PUBLIC TELEPHONE NETWORK. Failure to observe this caution could result in
damage to the public telephone network.
Der Anschluss dieses Gerätes an ein öffentlickes Telekommunikationsnetz in den EGMitgliedstaaten verstösst gegen die jeweligen einzelstaatlichen Gesetze zur Anwendung der
Richtlinie 91/263/EWG zur Angleichung der Rechtsvorschriften der Mitgliedstaaten über
Telekommunikationsendeinrichtungen einschliesslich der gegenseitigen Anerkennung ihrer
Konformität.