Transition Networks CETCT1020-100 User Manual

The Transition Networks CETCT1020-100
Ethernet media is designed to be installed in a
Transition Networks PointSystem™ chassis and
connects 10Base-T shielded or unshielded
twisted-pair copper cable to 10Base-2 coaxial
copper cable.

The CETCT1020-100 supports up to 30 devices
daisy-chained on one coax segment per twisted­pair segment.

User’s Guide

CETCT1020-100

Slide-in-Module Media Converter

• Coax to Twisted-Pair

• 10Base-2 to 10Base-T

Installation . . . . . . . . . . . . . . . . . .2

Operation . . . . . . . . . . . . . . . . . . .4

Cable Specifications . . . . . . . . . . .5

Troubleshooting . . . . . . . . . . . . . .6

Technical Specifications . . . . . . . .7

Compliance Information . . . . . . . .8

Part Number Port One - Twisted-Pair Port Two - Coax

* Typical maximum cable distance. The actual maximum cable distances are

dependent upon the physical characteristics of the network installation.

CETCT1020-100 RJ-45, 10Base-T

100 m (328 ft)*

BNC, 10Base-2
185 m (607 ft)*

2

CETCT1020-100

24-hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600

Installation

CAUTION: Wear a grounding device and observe electrostatic discharge

precautions when setting the switches and when installing the slide-in-module.

Failure to observe this caution could result in damage to, and subsequent failure
of, the media converter.

Set the MDI / MDI-X Switch

The MDI / MDI-X switch is
located on the media
converter circuit board. See
the drawing to the right for
the different MDI/MDI-X
configurations.

To satisfy the requirements for the 10Base-T connection, set the MDI / MDI-X
switch as directed:

Install the Slide-in-Module

To install the CETCT10xx-10x slide-in-module media converter:

1. Locate and empty slot on the PointSystem™ chassis.

2. Carefully slide the slide-in-module into the installation slot, aligning the
module with the installation guides.

3. Ensure that the slide-in-module is firmly seated inside the chassis.

4. Push in and rotate the attached panel fastener screw clockwise to secure
the slide-in-module to the chassis front.

CFMFF100

10BASE-2

CECF100

CFMFF100

0

50½

Link Alert

E

D

CETCF100

CFETF100

LA

PWR

RXF

RXC

LNK

COL

SPD

PWR

FRX

CRX

FLNK

CLNK

100BASE-TX

RX

TX
100BASE-FX

Link Alert

E

D

0

50½

LA

PWR

RXF

RXC

LNK

COL

10BASE-2

10BASE-FL

10BASE-T

LKS

PWR

LKM

LKS

PWR

LKM

Multimode

Singlemode

TX

RX

TX

RX

Multimode

Singlemode

TX

RX

TX

RX

I

0

TERM

INIT

RX

TX

LNK

PWR

CPSMM120

SERIAL

10BASE-T

R
E
S
E
T

I

0

Panel Fastener Screw

MDI-XMDI

NOTE: The media converter is
powered through the Transition
Networks PointSystem™ chassis.

If you are using: And you are connecting between

the CETCT10xx-10x and a:

Set the MDI/

MDI-X switch to

straight-through cable hub, switch, or router MDI

straight-through cable terminal, transceiver, or NIC MDI-X

crossover cable terminal, transceiver, or NIC MDI

crossover cable hub, switch, or router MDI-X

3

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Installation -- Continued

Install the Coax Cable

1. Locate or build 10Base-2 compliant fiber cable with female, BNC
connectors installed at both ends.

2. Connect the BNC cable connector at one end of the cable to the BNC
port on the media converter.

NOTE: Install a 50 Ω terminator on the BNC port or ensure that the 50 Ω
switch is set to “50.”

3. Connect the BNC cable connector at the other end of the cable to the
BNC port on the 10Base-2 compliant device.

NOTE: Ensure that the 10Base-2 coax cables are terminated properly at
both ends. In a coax thinnet installation, the first and last device in a
daisy-chain must be terminated using a 50 Ω terminator. Also, ensure
that the 10Base-2 segment is grounded to earth ground at a single point.

Connect the coax cable
to the first media
converter as shown.

Connect the coax cable

to the 10Base-2 compliant

device as shown

Install the 10Base-T Cable

1. Locate or build 10Base-T compliant copper 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 media converter.

3. Connect the RJ-45 connector at the other end of the cable to the RJ-45
port on the 10Base-T compliant device

RJ-45 port

on the other device

(switch, work station, etc.)

RJ-45 port

on the media

converter

4

CETCT1020-100

24-hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600

Operation

Status LEDs

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

PWR On = The media converter is connected to external power.

LNK On = 10Base-T link connection.

RXT Flashing = Reception of data on the 10Base-T copper link.

RX2 Flashing = Reception of data on the 10Base-2 copper link.

COL Flashing = Signal collisions on the 10Base-2 port.

Installation -- Continued

Set the 0/50 ΩΩSwitch

Use a small, flat-blade screwdriver to set the recessed switch on the front
panel of the media converter.

The 0/50 Ω switch is used to satisfy the terminating/grounding requirements
for the media converter.

• 0 ΩΩ= The 10Base-2 connection at the media
converter is NOT terminated.

• 50 ΩΩ= The 10Base-2 connection at the media
converter is terminated.

CETCT100

PWR

10Base-T 10Base2

500

RXT LNK

RX2 COL

500

SNMP

See the on-line documentation that comes with Transition Networks
FocalPoint™ software for applicable commands and usage.

Use SNMP at an attached terminal or at a remote location to monitor the
media converter by monitoring:

• 10Base-T link status

• 10Base-T activity status.

• 10Base-2 activity status.

• 10Base-2 collision status.

5

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Cable Specifications

10Base-2 Cable

Cable type: Stranded Coaxial RG-58
Impedance: 50 Ω @ 10 MHz
Mutual capacitance: 24 pF/ft +/- 20% @ 10 MHz
Maximum cable distance: 185 m (607 ft.)
Minimum cable distance: 0.5 m (1.6 ft.)
Maximum number of connections 30

10Base-T Cable

Category 3: (minimum requirement)

Gauge 24 to 22 AWG
Attenuation 11.5 dB/100m @ 5-10 MHz
Maximum cable distance: 100 m

Category 5: (recommended)
Gauge 24 to 22 AWG
Attenuation 22.0 dB/100m @ 100 MHz
Maximum cable distance: 100 m

• Straight-through or crossover 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 .

• RJ-45 Pin-out: Pin 1 = TD+, Pin 2 = TD-, Pin 3 = RD+, Pin 6 = RD-

• 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.

Troubleshooting

1. Is the PWR LED illuminated?
NO

• Is the media converter inserted properly into the chassis?

• Is the power cord properly installed?

• Does the external power source provide power?

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

YES

• Proceed to step 2.

2. Is the LNK LED illuminated?
NO

• Check the twisted-pair 10Base-T cables for proper connection.

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

YES

• Proceed to step 3.

3. Is the COL LED flashing?
NO

• Restart the workstation to restart the initialization process.

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

YES

• Proceed to step 4.

4. Is the LA LED illuminated?
YES

• Locate and correct device connection fault.

• Restart the workstation to restart the initialization process.

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

NO

• Proceed to step 5.

5. Is the RXT LED flashing?
NO

• If there is no activity on the 10Base-T port, proceed to step 6.

• If there is activity on the 10Base-T port, disconnect and reconnect the

10Base-T cable to restart the initialization process.

• Restart the workstation to restart the initialization process.

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

YES

• Proceed to step 6.

6. Is the RX2 LED illuminated?
NO

• Check 10Base-2 cables for proper connection.

• Verify that 10Base-2 cable connections on media converter and on

attached device are terminated properly

• Disconnect and reconnect the cable to restart the initialization process.

• Restart the workstation to restart the initialization process.

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

YES

• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.

6

CETCT1020-100

24-hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600

7

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Declaration of Conformity

Name of Mfg: Transition Networks

6475 City West Parkway, Minneapolis MN 55344 USA
Model: CETCT1020-100 Series Media Converters
Part Number(s):

CETCT1020-100

Regulation: EMC Directive 89/336/EEC
Purpose: To declare that the

CETCT1020-100

to which this declaration refers is

in conformity with the following standards.
CISPR 22:1993; EN 55022:1994, A-1:1995, A-2:1997 Class A; FCC Part 15 Subpart B;

EN 55024:1998; EN 61000-3-2:1995; EN 61000-3-3:1995

I, the undersigned, hereby declare that the equipment specified above conforms to the above
Directive(s) and Standard(s).

March 16, 2001

Stephen Anderson, Vice-President of Engineering Date

Technical Specifications

For use with Transition Networks Model CETCT1020-100 or equivalent

Standards IEEE 802.3™

Dimensions 3.4" x 0.86" x 5.0" (86mm x 22mm x 127mm)

Weight 3 oz (91 g) (approximate)

Data Rate 10 Mb/s (half-duplex mode)

Power Consumption 2.4 watts (typical)

MTBF 595,000 hours (MIL217F2 V5.0) (MIL-HDBK-217F)

1,471,000 hours (Bellcore7 V5.0)

Environment Tmra*: 0 to 60°C (32 to 140° F )

Storage Temperature: -20 to 85°C (-4 to 185° F )
Humidity 10 to 90%, non condensing
Altitude 0 to 10,000 feet

Warranty Lifetime

*Manufacturer’s rated ambient temperature: Tmra range for this slide-in-module
depends on the physical characteristics and the installation configuration of the
Transition Networks PointSystem™chassis in which this module will be installed.

The information in this user’s guide is subject to change. For the most up-to-date
information, see the CETCT10xx-10x user’s guide on-line at www.transition.com.

Compliance Information

CISPR22/EN55022 Class A + EN55204; CE Mark

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 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.

Trademark Notice

All registered trademarks and trademarks are the property of their respective owners.

Copyright Restrictions

© 2001, 2004-2005 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.

33181.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 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.

Contact Us:

Technical support is available 24 hours a day.
US and Canada: 1-800-260-1312 International: 00-1-952-941-7600

Ask a question anytime by sending an e-mail to our technical support staff.

[e-mail]

Transition Networks, 6475 City West Pkwy, Minneapolis, MN 55344, USA
telephone: [phone], toll free: 800-526-9267, fax: [phone]