Transition Networks J-CF-02, FE-CF-02, J/FE-CF-02, J/FE-CF-02(SC), J/FE-CF-02(SM) User Manual

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

© 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. 33194.B

The TRANSITION Networks J/FE-CF-02 series Fast Ethernet™ media
converters connect either unshielded or shielded 100BASE-TX twisted-pair
copper cable to 100BASE-FX multimode OR singlemode (depending on
model) fiber-optic cable.

J/FE-CF-02

J/FE-CF-02 in the Network . . . . . . . .2

Installation . . . . . . . . . . . . . . . . . . . .4

Operation . . . . . . . . . . . . . . . . . . . . .5

Fault Isolation and Correction . . . . .5

Cable Specifications . . . . . . . . . . . . .6

Technical Specifications . . . . . . . . . .7

Compliance Information . . . . . . . . . .8

J/FE-CF-02

Provides an RJ-45 100BASE-TX twisted
pair copper connector and a set of RX
(receive) and TX (transmit) 100BASE-FX
ST connectors to 1300 nm multimode
fiber-optic cable.

J/FE-CF-02(SC)

Provides an RJ-45 100BASE-TX twisted
pair copper connector and an RX
(receive) and TX (transmit) 100BASE-FX
SC connector to 1300 nm multimode
fiber-optic cable.

J/FE-CF-02(SM)

Provides an RJ-45 100BASE-TX twisted
pair copper connector and an RX
(receive) and TX (transmit) 100BASE-FX
SC connector to 1300 nm singlemode
fiber-optic cable.

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.

100BASE-TX/100BASE-FX

Media Converters

J/FE-CF-02

USER’S GUIDE

J/FE-CF-02 IN THE NETWORK

Do NOT connect media converters between hubs.
Install no more than two (2) media converters in series.

TECHNICAL SPECIFICATIONS

Standards IEEE 802.3u
Case Dimensions 4.0" x 3.75" x 1.0" (102 mm x 95 mm x 25 mm)
Power Regulated 12VDC at 800 mA
Environment Typical Operating Temperature: 0°

to 50°C (32°to 122°F )

Storage Temperature: -20°to 85°C (-4° to

185°F)
Humidity 10-90%, non condensing
Altitude 0-10,000 feet

Warranty Lifetime

UTP/STP

Fiber

MDI-X switch setting

MDI switch setting

DECLARATION OF CONFORMITY

Name of Mfg: Transition Networks

6475 City West Parkway, Minneapolis MN 55344 USA
Model: J/FE-CF-02 Series Media Converters
Part Number(s): J/FE-CF-02, J/FE-CF-02(SC), J/FE-CF-02(SM)
Regulation: EMC Directive 89/336/EEC
Purpose: To declare that the J/FE-CF-02 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).

_October 1, 2000_____

Stephen Anderson, Vice-President of Engineering Date

CABLE SPECIFICATIONS

The physical characteristics of the media cable must meet or exceed IEE 802.3
specifications.

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
J/FE-CF-02 1300 nM
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -34.0 dBm max: -14.0 dBm
Link Budget: 15.0 dB
Typical Maximum Cable Distance*: 2 kilometers

J/FE-CF-02(SC) 1300 nM
Fiber Optic Transmitter Power: min: -19.0 dBm max: -14.0 dBm
Fiber Optic Receiver Sensitivity: min: -34.0 dBm max: -14.0 dBm
Link Budget: 15.0 dB
Typical Maximum Cable Distance*: 2 kilometers

SINGLEMODE

Fiber Optic Cable Recommended: 9 µm singlemode fiber
J/FE-CF-02(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
Link Budget: 16.0 dB
Typical Maximum Cable Distance*: 15 kilometers

*Actual distance dependent upon physical characteristics of network installation.

Copper Cable

Category 5 shielded twisted-pair (STP) or unshielded twisted-pair (UTP) copper
wire is required. DO NOT USE FLAT OR SILVER SATIN WIRE.

CATEGORY 5:

Gauge 24 to 22 AWG
Attenuation 22.0 dB /100m @ 100 MHz
Maximum Cable Distance: 100 meters

The two active pairs in an Ethernet™
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 pins.

Twisted
Pair #1

Twisted
Pair #2

Straight Through Cable

Media Converter in Full-Duplex Network

In a full-duplex network, maximum cable lengths are determined by the
cables used. See page 10 for cable specifications.

NOTE: The 512-Bit Rule described below does NOT apply in a full-duplex
network.

Media Converter in Half-Duplex Network

The 512-Bit Rule applies separately to each collision domain.

USING THE 512-BIT RULE

In a half-duplex network, maximum cable lengths are determined by the
round trip delay limitations of each Fast Ethernet

™ collision domain.

(Switches and routers divide the network into separate Ethernet™
collision domains.) The 512-Bit Rule determines maximum distances by
calculating the collision domain round-trip delay in bit-times.

To calculate a collision domain round-trip delay in bit-times, find the

longest path between any two
terminal devices in the collision
domain. Calculate the round
trip delay by multiplying the
length of the cable (in meters)
by the delay per meter (in bit­times (BT)), then take the sum of
all cable delays plus station
(DTE), repeater, and multi-port
media converter port delays. If

the result is less than or equal to 512 bit-times, the path is good.

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 (PC, switch, router) 50 BT

J/FE-CF-02 12 BT

1 meter CAT.5 TP cable 1.11 BT
1 meter fiber cable 1 BT
Fast Ethernet switch 50 BT

10 meters TP

@ 1.11BT/meter

= 11.1BT

10 meters TP

@ 1.11BT/meter

= 11.1BT

DTE= 50BT

Half-Duplex Collision Domain

Half-Duplex Collision Domain

200 meters fiber

@ 1.0 BT/meter

= 200BT

DTE= 50BT

50.00BT
+11.10BT
+12.00BT

+200.00BT

+12.00BT
+11.10BT
+50.00BT

__________

_

= 346.20BT

DTE= 50BT

10 meters TP

@ 1.11BT/meter

= 11.1BT

150 meters fiber

@ 1.0 BT/meter

= 150BT

10 meters TP

@ 1.11BT/meter

= 11.1BT

Class I

Hub

= 140BT

50.00BT

+11.10BT
+140.00BT
+150.00BT

+12.00BT

+11.10BT

+50.00BT

__________

_

= 424.20BT

Switch/

Router

= 50BT

Full-Duplex - NO Collision Domain

Media
Converter
= 12BT

Media
Converter
= 12BT

Media
Converter
= 12BT

Media
Converter
= 12BT

INSTALLATION

Set MDI/MDI-X Pushbutton Switch

NOTE: The MDI/MDI-X pushbutton switch is located on the media converter
between the copper and fiber network connectors.

• Set the MDI/MDI-X switch to MDI (DOWN) for copper cable connection
between hub and media converter.

• Set the MDI/MDI-X switch to MDI-X (UP) for copper cable connection
between media converter and terminal, transceiver or network interface
card (NIC).

Install Cable

NOTE: See page 6 for cable specifications and configurations.

COPPER

NOTE: KEEP TWISTED PAIR RUNS AS SHORT AS POSSIBLE.
NOTE: AutoCross™ allows the use of either straight-through or crossover

configuration cables.

• Locate or build 100BASE-TX compliant cables (either straight-

through or crossover) with male RJ-45 plug connectors at both
ends.

• Connect male RJ-45 plug connector at one end of cable to media

converter RJ-45 jack connector.

• Connect male RJ-45 plug connector at other end of cable to

100BASE-TX terminal device RJ-45 jack connector.

FIBER

• Locate or build 100BASE-FX compliant fiber cable with male

two-stranded TX to RX connectors at both ends.

• Connect male TX and RX cable connectors at one end of cable to

TX and RX female connectors, respectively, on media converter.

• Connect male TX and RX cable connectors at other end of cable

to RX and TX connectors of 802.3 compliant fiber device.

Connect to Power

• Install Power Adapter cord at back of Media Converter.

• Connect Power Adapter plug to AC power.

• Verify that Media Converter is powered by observing illuminated

LED(s).

OERATION

Use the status LEDs next to each connector to monitor media converter
operation in the network.

POWER Steady LED indicates power.
UTP Steady LED indicates 100BASE-TX link.

Flashing LED indicates 100BASE-TX activity.

FX Steady LED indicates 100BASE-FX link.

Flashing LED indicates 100BASE-FX activity.

FAULT ISOLATION and CORRECTION

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 AC outlet?
NOTE: Refer to the “Power Supply Requirements” on page 7.

• Is the power adapter properly installed in the media converter and

in the outlet?

• Contact Technical Support at [phone]/ (800) LAN-WANS.

YES

• Proceed to step 2.

2. Is the UTP LED illuminated?
NO

• Check UTP cables for proper connection.

• Verify MDI/MDI-X switch position.

• Contact Technical Support at [phone]/ (800) LAN-WANS.

YES

• Proceed to step 3.

3. Is the FX LED illuminated?
NO

• Check fiber cables for proper connection.

• Verify that TX and RX cables on media converter are connected to

RX and TX ports, respectively, on the other 100BASE-FX device.

• Refer to Tech Tips available at: http://www.transition.com

• Contact Technical Support at [phone]/ (800) LAN-WANS.

YES

• Contact Technical Support at [phone]/ (800) LAN-WANS.