Transition Networks E-PSW-FX-03(LH), E-PSW-FX-03(SC), E-PSW-FX-03(LW), E-PSW-FX-03(SM), E-PSW-FX-03(XL) User Manual
...
10BASE-T/100BASE-TX to 100BASE-FX
Bridging Media Converter
E-PSW-FX-03, E-PSW-FX-03(SC), E-PSW-FX-03(SM)
E-PSW-FX-03(LH), E-PSW -FX-03(XL), E-PSW -FX-03(L W)
USER’S GUIDE
TRANSITION Networks E-PSW-FX-03 series two-port bridging media
converter, designed to be installed in the TRANSITION Networks Media
Conversion Center, E-MCC-1600, segments10BASE-T/100BASE-TX copper
and 100BASE-FX fiber Ethernet
™
collision domains to allow the network
administrator to extend the total network diameter, to reduce network
congestion, and/or to convert between legacy 10BASE-T and 100BASE-FX
environments.
COMPLIANCE INFORMATION
UL Listed
C-UL Listed (Canada)
CISPR/EN55022 Class A
FCC Regulations
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 weichen Fällen der Benutzer für entsprechende Gegenmaßnahmen
werantwortlich ist.
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
Trademark Notice
All registered trademarks and trademarks are the property of their respective owners.
Copyright Restrictions
© 1999-2001 TRANSITION Networks.
All rights reserved. No part of this work may be reproduced or used in any form or by any means –
graphic, electronic, or mechanical – without written permission from TRANSITION Networks.
Printed in the U.S.A. 33101.D
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 EG-Mitgliedstaaten
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.
E-PSW-FX-03
Provides an RJ-45 twisted-pair
connector to UTP/STP copper cable
and a set of RX (receive) and TX
(transmit) ST 1300nm multimode
fiber connectors.
E-PSW-FX-03(SC)
Provides an RJ-45 twisted-pair
connector to UTP/STP copper
cable and an RX (receive) and TX
(transmit) SC 1300nm multimode
fiber connector.
E-PSW-FX-03(SM)
Provides an RJ-45 twisted-pair
connector to UTP/STP copper
cable and an RX (receive) and TX
(transmit) SC 1300nm singlemode
fiber connector.
E-PSW-FX-03(LH)
Provides an RJ-45 twisted-pair
connector to UTP/STP copper
cable and an RX (receive) and TX
(transmit) SC 1300nm singlemode
fiber connector.
E-PSW-FX-03(XL)
Provides an RJ-45 twisted-pair
connector to UTP/STP copper
cable and an RX (receive) and TX
(transmit) SC 1300nm singlemode
fiber connector.
E-PSW-FX-03(LW)
Provides an RJ-45 twisted-pair
connector to UTP/STP copper
cable and an RX (receive) and TX
(transmit) SC 1550nm singlemode
fiber connector.
E-FL-HB-0x00 in the Network . . . . .2
Installation . . . . . . . . . . . . . . . . . . . .4
Operation . . . . . . . . . . . . . . . . . . . .11
Fault Isolation and Correction . . . .12
Cable Specifications . . . . . . . . . . . .13
Technical Specifications . . . . . . . . .15
Compliance Information . . . . . . . . .16
E-PSW-FX-03 IN THE NETWORK
The TRANSITION Networks E-PSW-FX-03 series two-port bridging
media converter is intended to be installed, singly or in pairs, to provide
network distance extension, network congestion reduction, and/or rate
conversion between legacy Ethernet
™
and Fast Ethernet devices.
TECHNICAL SPECIFICATIONS
Standards IEEE 802.3
Case Dimensions 4.75" x 3.0" x 1.0" (119mm x 76mm x 25mm)
Shipping Weight 2 pounds (0.9 kilograms)
Environment Temperature: 0-50°C (32° to 122° F )
Storage Temperature: -20 to 85°C
Humidity 10-90%, non condensing
Altitude 0-10,000 feet
Warranty Lifetime
DECLARATION OF CONFORMITY
Name of Mfg: Transition Networks
6475 City West Parkway, Minneapolis MN 55344 USA
Model: E-PSW-FX-03 Series Bridging Media Converter
Part Number: E-PSW-FX-03, E-PSW-FX-03(SC), E-PSW-FX-03(SM),
E-PSW-FX-03(LH), E-PSW-FX-03(LW), E-PSW-FX-03(XL)
Regulation: EMC Directive 89/336/EEC
Purpose: To declare that the E-PSW-FX-03 to which this declaration refers is in
conformity with the following standards.
EMC-CISPR 22: 1985 Class A; EN 55022: 1988 Class A; EN 50082-1:1992;
EN 60950 A4:1997; IEC 801.2, IEC 801.3, and IEC 801.4; IEC 950
I, the undersigned, hereby declare that the equipment specified above conforms to the
above Directive(s) and Standard(s).
_September 10, 2000_____
Stephen Anderson, Vice-President of Engineering Date
Link
UTP/STP
Fiber
Link
FDX
Power
100
Link
UTP/STP
Fiber
Link
FDX
Power
100
10BA
SE-T
Cable
10
0
BA
S
E-
TX
C
ab
l
e
1
0
0
B
A
S
E
-
F
X
C
a
b
le
Network Distance Extension
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can extend Fast Ethernet half-duplex network
distances by separating one or two half-duplex Ethernet or Fast
Ethernet copper CSMA/CD collision domain(s) by a half-duplex Fast
Ethernet fiber CSMA/CD collision domain or by connecting two halfduplex ur full-duplex Ethernet or Fast Ethernet copper CSMA/CD
collision domain(s) over full-duplex fiber.
Network Congestion Reduction
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can reduce network congestion by segmenting
network traffic Network segmentation is achieved by regulating the
number of data signals sent among stations. The bridging media
converter scans the destination address on each packet header
received on a port, searches a dynamic internal MAC routing table,
and forwards the packet only if the data is intended for a station
beyond the local collision domain. If the data is intended for a station
on the collision domain from which the packet was received, the
bridging media converter discards (filters) the packet, since any signal
on the local segment already has been received by all stations on that
segment. Baseline network performance also is improved because
bridging media converters do not forward collision signals or error
packets from one collision domain to another.
Rate Conversion
The TRANSITION Networks two-port Ethernet/Fast Ethernet bridging
media converter can provide rate conversion between terminal
devices on a 10BASE-T copper legacy Ethernet network and terminal
devices on a 100BASE-FX fiber Fast Ethernet network, using the autonegotiation process. When two auto-negotiating devices with multiple
capabilities are connected together, the highest performance mode of
operation is found based on a priority`table. Each 100BASE-TX station
sends a burst of link integrity test pulses, called a fast link pulse (FLP).
If the receiving switch is capable of 10BASE-T communication only,
the FLPs are ignored and the cable segment operates as 10BASE-T. If
the device can support 100BASE-TX operation, the bridging media
converter detects the FLPs, uses the auto-negotiation algorithm and
FLP data to determine the highest possible cable segment speed and
mode, and automatically places both the device and the bridging
media converter into 100BASE-TX mode.
CABLE SPECIFICATIONS (continued)
The physical characteristics of the 100BASE-FX cable must meet or exceed
IEEE 802.3 100BASE-FX specifications.
Fiber Cable
Bit error rate: ≤10-9
MULTIMODE
Fiber Optic Cable Recommended: 62.5 / 125 µm multimode fiber
Optional: 100 / 140 µm multimode fiber
85 / 125 µm multimode fiber
50 / 125 µm multimode fiber
E-PSW-FX-03 1300 nm
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -30.0 dBm max: -14.0 dBm
Typical Maximum Cable Distance*: 2 kilometers
E-PSW-FX-03(SC) 1300 nm
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: - 30.0 dBm max: -14.0 dBm
Typical Maximum Cable Distance*: 2 kilometers
SINGLEMODE
Fiber Optic Cable Recommended: 9 µm singlemode fiber
E-PSW-FX-03(SM) 1300 nm
Fiber-optic Transmitter Power: min: -15.0 dBm max: -8.0 dBm
Fiber-optic Receiver Sensitivity: min: - 31.0 dBm max: -8.0 dBm
Typical Cable Distance*: 20 kilometers
E-PSW-FX-03(LH)** 1300 nm
Fiber-optic Transmitter Power: min: -8.0 dBm max: -2.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Minimum Attenuation: 8 dB
Typical Cable Distance*: 40 kilometers
E-PSW-FX-03(XL) 1300 nm
Fiber-optic Transmitter Power: min: -5.0 dBm max: 0.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Minimum Attenuation: 7 dB
Typical Cable Distance*: 60 kilometers
E-PSW-FX-03(LW) 1550 nm
Fiber-optic Transmitter Power: min: -5.0 dBm max: 0.0 dBm
Fiber-optic Receiver Sensitivity: min: -34.0 dBm max: -7.0 dBm
Spectral Width 0.4 nm FWHM
Minimum Attenuation: 7 dB
Typical Cable Distance*: 80 kilometers
*Actual distance dependent upon physical characteristics of network installation.
**Minimum fiber cable loss MUST be 8.0 dB to prevent receiver damage.
INSTALLATION
Setting DIP Switch
NOTE: Set DIP switch (located on Media Converter Slide-in-Module
circuit board) BEFORE installing Media Converter Slide-in-Module in
the Media Conversion Center.
DIP switch settings shown below are set to configure the bridging media
converter for the site installation.
To set network speed(s) and
operating mode(s), use a very
small flatblade screwdriver or
similar device and refer to the
table at the left and to the
examples on the next page to set
DIP switch for the site installation.
NOTE: Auto-negotiation is
designed so that a twisted-pair link
will not become operational until
matching capabilities exist in the
devices installed at both ends of
the 802.3u twisted-pair network.
• When auto-negotiation is
enabled using switch #1, the
bridging media converter
“advertises” rate and mode
capabilities to the network.
Switch #2 and switch #3 are
used selectively to set the
twisted-pair rate and mode to
be “advertised” OR to allow the
full range of rates and modes.
• When auto-negotiation is
disabled using switch #1, the
bridging media converter does
not “advertise” rate and mode
capabilities to the network
Switch #2 and switch #3 are
used to set twisted-pair rate and
mode.
CABLE SPECIFICATIONS
Copper Cable Specifications
10BASE-T
The physical characteristics of 10BASE-T cable must meet or exceed
IEEE 802.3 10BASE-T specifications. Though Category 3 cable is
adequate for the 10BASE-T installation, Category 5 cable is strongly
recommended, since Category 3 cable can not be used for a later
upgrade to 100BASE-TX. DO NOT USE FLAT OR SILVER SATIN WIRE.
100BASE-TX
The physical characteristics of 100BASE-TX cable must meet or exceed
IEEE 802.3 100BASE-TX specifications. Category 5 cable or better is
required. Either shielded twisted pair (STP) or unshielded twisted pair
(UTP) can be used. DO NOT USE FLAT OR SILVER SATIN WIRE.
Category 3:
Gauge 24 to 22 AWG
Attenuation 6.5 dB/100’ @ 10 MHz
Differential Characteristic Impedance 100 Ω ±15%
Category 5:
Gauge 24 to 22 AWG
Attenuation 22 dB/100’ @ 100 MHz
Differential Characteristic Impedance 100 Ω ±15%
Maximum Cable Distance: 100 meters (330 feet)
RJ-45 P
LUG
RJ-45 J
ACK
18234
5
6
7
1
8
The two active pairs in a 10BASE-T or 100BASE-TX
network are pins 1 & 2 and pins 3 & 6. Use only
dedicated wire pairs (such as blue/white &
white/blue, orange/white & white/orange) for the
active pairs.
The two wires in each pair of the cable must be
twisted together for the entire length of the
segment and kept twisted to within approximately
1/2 inch of any connector to ensure the integrity of
the signal-carrying characteristics of the
unshielded wire pair.
NOTE: Media converter is pinned as DTE device.
Twisted-pair Copper Straight-Through /Crossover Configurations
Crossover Cable
at RJ-45 Plug
Bridging Media Converter Network Device
RJ-45 Male . . . . . . . . . . . . .RJ-45 Male
1
(TX+) . . . . . . . . . . . . . . . 3
2
(TX-) . . . . . . . . . . . . . . . 6
3
(RX+) . . . . . . . . . . . . . . 1
6
(RX-) . . . . . . . . . . . . . . . 2
Straight-Through Cable
at RJ-45 Plug
Bridging Media Converter Network Device
RJ-45 Male . . . . . . . . . . . . .RJ-45 Male
1
(TX+) . . . . . . . . . . . . . . . 1
2
(TX-) . . . . . . . . . . . . . . . 2
3
(RX+) . . . . . . . . . . . . . . 3
6
(RX-) . . . . . . . . . . . . . . . 6
Twisted-pair
Auto-negotiation ON
Twisted-pair
Auto-negotiation OFF
Twisted-pair
FULL-DUPLEX
Twisted-pair
HALF-DUPLEX
Twisted-pair
100BASE-TX
Twisted-pair
10BASE-T
Fiber
FULL-DUPLEX
Fiber
HALF-DUPLEX
UP
DOWN
UP
DOWN
UP
DOWN
UP
DOWN
Config
Switches
1 2 3 4
FAULT ISOLATION and CORRECTION
If a bridging media converter fails, ask the following questions and then
taking the indicated action:
1. Is the P(o)W(e)R LED on the E-PSW-FX-03illuminated?
NO
• Is the power adapter the proper type of voltage and cycle
frequency for the AC outlet?
• Is the power adapter properly installed in the media
converter and in the
grounded AC outlet?
• Does the grounded AC outlet provide power?
• Contact Technical Support: (800) 260-1312.
YES
• Continue at step 2.
2. Is the Link LED illuminated on a port with twisted-pair installed?
NO
• Check UTP cables for proper connection/pin assignment.
• Ensure that terminal device(s) is/are powered.
• Disconnect and reconnect the copper cable to restart the
initialization process.
• Restart the terminal device(s) to restart the initialization process.
• Contact Technical Support: (800) 260-1312.
YES
• Proceed to step 3.
3. Is the Link LED illuminated on a port with fiber installed?
NO
• Check fiber cables for proper connection.
• Verify that TX and RX cables are connected to RX and TX ports,
respectively, on 100BASE-FX device.
• Ensure that terminal device(s) is/are powered.
• Disconnect and reconnect the fiber cable to restart the initialization
process.
• Restart the terminal device(s) to restart the initialization process.
• Refer to Tech Tips available at: http://www.transition.com
• Contact Technical Support: (800) 260-1312.
YES
• Contact Technical Support: (800) 260-1312.
TWISTED-PAIR AUTO-NEGOTIATION:
Set auto-negotiation (DIP switch #1) to select autonegotiation: ON=UP
Set twisted-pair full-duplex/half-duplex (DIP switch #2)
to select full-duplex: ON=UP
Set twisted-pair 10BASE-T/100BASE-TX (DIP switch #3)
to select 100BASE-TX: ON=UP
TWISTED-PAIR FULL-DUPLEX 100BASE-TX:
Set auto-negotiation (DIP switch #1) to de-select autonegotiation: OFF=DOWN
Set twisted-pair full-duplex/half-duplex (DIP switch #2)
to select full-duplex: ON=UP
Set twisted-pair 10BASE-T/100BASE-TX (DIP switch #3)
to select 100BASE-TX: ON=UP
TWISTED-PAIR 10BASE-T WITH MODE AUTO-NEGOTIATION:
Set auto-negotiation (DIP switch #1) to select autonegotiation: ON=UP
Set twisted-pair full-duplex/half-duplex (DIP switch #2)
to select full-duplex: ON=UP
Set twisted-pair 10BASE-T/100BASE-TX (DIP switch #3)
to select 10BASE-T: OFF=DOWN
FIBER FULL-DUPLEX 100BASE-FX:
Set fiber full-duplex/half-duplex (DIP switch #4) to
select full-duplex: ON=UP
FIBER HALF-DUPLEX 100BASE-FX:
Set fiber full-duplex/half-duplex (DIP switch #4) to
select half-duplex: OFF=DOWN
UP
UP
UP
DOWN
UP
UP
UP
UP
DOWN
UP
DOWN
INSTALLATION
(continued)
Using the 5-Segment Rule (10BASE-T)
The Ethernet 10BASE-T 5-segment rule defines a segment as the cable
connection between station interfaces. The transmission path between
any two terminal devices in the same collision domain can consist of
no more than five segments. Installing the TRANSITION Networks’
bridging media converter in the network separates collision domains,
so the 10BASE-T 5-segment rule applies separately to each collision
domain.
To assign segment numbers to cable connections:
1. Determine the network device separated from the Transition
Networks’ pocket switch by the greatest number of segments.
2. Define a segment path between that network device and the
Transition Networks’ pocket switch by labeling the cable
connection to the Transition Networks’ pocket switch “segment
1” and numbering each segment in the path to the terminal up to
“segment n” (n = total number of segments † 5).
3. Verify that no segment path in the collision domain contains
more than n † 5 segments.
4. Repeat steps 1-3 for next collision domain.
OPERATION
Use the status indicator LEDs to monitor E-PSW-FX-03 operation in
the network.
STATUS LEDS
Power Steady green LED indicates connection to
external
AC power.
100 Indicates
100MB/s
mode on
UTP/STP.
Link (RECEIVE) Steady green LED indicates UTP/STP
OR Fiber link.
Blinking green LED indicates packet reception on
UTP/STP OR on Fiber link.
FDX Steady green LED indicates full-duplex operation
on UTP/STP OR on Fiber link.
Link
UTP/STP
Fiber
Link
FDX
Power
100
hub
hub
hub
hub
3
4
5
2
1
hub
hub
hub
hub
3
4
5
2
Collision Domain
1
Collision Domain
INSTALLATION (continued)
Powering the Bridging Media Converter
To power ON the bridging media converter:
1. Locate power receptacle on back of bridging media converter
2. Connect the bridging media converter power connector end of
the power supply adapter to the power receptacle on the back of
the Transition Network’s bridging media converter.
3. Connect the external power connector end of the power supply
adapter to external AC power.
NOTE: After the power supply adapter is connected to the bridging
media converter and to external power, the green Power LED is
illuminated.
Using the 512-Bit Rule (100BASE-TX/100BASE-FX)
A bit-time (BT) is the amount of time required to send one data bit
across an Ethernet LAN. The total number of bit-times between any
two DTEs in the same Fast Ethernet 100BASE-TX or 100BASE-FX
collision domain cannot exceed 512 bit-times in the round trip.
To calculate the round trip delay in bit-times between a station (DTE)
and the Transition Networks’ bridging media converter, determine the
Fast Ethernet worst case round-trip delays expressed in bit times:
• Find the longest and most complicated collision domain path
between the station and the Transition Networks’ Bridging Media
Converter.
• Calculate the round trip
delay for each cable
segment by multiplying
the length of the cable
(in meters) by the delay
per meter (in bit times
(BT)) for each cable type
as listed in the table
• Calculate the total round trip delay by taking the sum of all the
individual cable delay values in the path, as listed in the table, plus
station (DTE) delays and hub (repeater) delays.
• Add the segment delay values together. If the result is less than or
equal to 512 bit times, the path passes the test.
NOTE: Actual manufacturers’ bit-time values and/or measured bit-time
values may be greater or less than bit-time values listed in the chart.
Full-Duplex Fiber/NO Collision Domain
Collision Domain
Class II
Hub
Collision Domain
Class I
Hub
100 meters TP
@ 1.11BT/meter
= 111BT
5 meters TP
@ 1.11BT/meter
= 5.55BT
DTE= 50BT
= 140BT
= 92BT
Class II
Hub
= 92BT
Switch
= 50BT
100 meters TP
@ 1.11BT/meter
= 111BT
100 meters TP
@ 1.11BT/meter
= 111BT
100 meters TP
@ 1.11BT/meter
= 111BT
Switch
= 50BT
DTE= 50BT
50.00BT
+111.00BT
+92.00BT
+5.55BT
+92.00BT
+111.00BT
50.00BT
___________
= 511.55BT
50.00BT
+111.00BT
+140.00BT
+111.00BT
50.00BT
___________
= 462.00BT
Class I Repeater . . . . . . . . . . . . . . . . .140 BT
Class II Repeater . . . . . . . . . . . . . . . . . .92 BT
Class I TX/FX Media Converter . . . . . .130 BT
Class II TX/FX Media Converter . . . . . .92 BT
DTE . . . . . . . . . . . . . . . . . . . . . . . . . . .50 BT
1 meter of CAT.5 TP cable . . . . . . . . .1.11 BT
1 meter of fiber cable . . . . . . . . . . . . . . .1 BT
Bridging Media Converter . . . . . . . . . . .50 BT
INSTALLATION
(continued)
Connecting Copper Cable (10BASE-T/100BASE-TX)
Ensure that the correct cable type is installed to support the highest
speed and mode of operation to be selected. Though Category 3 cable
is adequate for the 10BASE-T installation, Category 5 cable is strongly
recommended, since Category 3 cable can NOT be used for
100BASE-TX.
10BASE-T AND THE ETHERNET COLLISION DOMAIN
• Refer to the 5-Segment Rule (page 8) before installing half-duplex
10BASE-T cable.
• Installing full-duplex twisted-pair cable avoids collision domain
considerations; distances remain ≤ 100 meters.
100BASE-TX AND THE FAST ETHERNET COLLISION DOMAIN
• Refer to the 512-Bit Rule before installing half-duplex 100BASE-
TX cable.
• Installing full-duplex twisted-pair cable avoids collision domain
considerations; distances remain ≤ 100 meters.
• NOTE: A Fast Ethernet collision domain can have ONLY ONE
CLASS I repeater OR TWO CLASS II repeaters.
INSTALLING CABLE
To install 10BASE-T or 100BASE-TX cable:
1. Locate or build 10BASE-T or 100BASE-TX cables:
• 803.2 (10BASE-T) or 803.2u (100BASE-TX) compliant
• with Straight-through or Crossover RJ-45 cable/connectors as
required for site installation (page 13)
• with RJ-45 plug connectors installed at both cable ends.
2. Connect RJ-45 plug connector at one end of 10BASE-T or
100BASE-TX cable to bridging media converter RJ-45 jack
connector.
3. Connect RJ-45 plug connector at other end of 10BASE-T or
100BASE-TX cable to RJ-45 jack connector on network device.
.
100BASE-FX Full-Duplex Optical Loss Budget
An 11dB loss budget (measured using a fiber optic power meter) is
allowed per link of 100BASE-FX Full-Duplex cable. Standard grade
fiber operating at 1350 nm has approximately 1dB – 2dB loss per
1000 meters of cable. Approximately 0.5dB– 2.0dB loss per
connection point is typical, depending on the integrity of the
connection.
Connecting Fiber Cable (100BASE-FX)
100BASE-FX AND THE FAST ETHERNET COLLISION DOMAIN
• Refer to the 512-Bit Rule before installing half-duplex 100BASE-
FX cable (≤ 415 meters).
• Using full-duplexfiber cable avoids collision domain
considerations and extends distances up to 2 kilometers
(multimode) or up to 20 kilometers (singlemode).
• NOTE: A Fast Ethernet collision domain can have ONLY ONE
CLASS I repeater OR TWO CLASS II repeaters.
INSTALLING CABLE
To install 100BASE-FX cable:
1. Locate or build 100BASE-FX cables:
• 803.2u compliant
• with male transmit (TX) and receive (RX) fiber connectors
installed at both cable ends.
2. Connect transmit cable connector at one end of fiber cable
to bridging media converter connector marked with an
“outbound” arrow; connect receive cable connector to
bridging media converter connector marked with an
“inbound” arrow.
3. Connect other end of cable installed at transmit (TX)
connector of bridging media converter to receive (RX)
connector on network device; connect other end of cable
installed at receive (RX) connector of bridging media
converter to transmit (TX) connector on network device.
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