E-TBT-MC04 10Base-T
Transceiver
• Stand-Alone model
• Attached Unit Interface (AUI) to
Ethernet RJ-45 connectors
• No external power requirement
The E-TBT-MC04 transceiver is a media access
unit (MAU) that connects the AUI port of data
terminal equipment, repeaters, or other network
devices either directly or through an AUI cable to an Ethernet 10BASE-T device. The
Ethernet device is connected to the transceiver through an unshielded or shielded
twisted-pair copper cable with RJ-45 connector ends.
Various Transceiver System Configurations
Figure 1 shows various examples of transceiver system configurations.
10-Base-T Hub
Workstation
Or
Or
E-TBT-MCO4E-TBT-MCO4
Workstation
E-TBT-MCO4
HUB with AUI Port
Figure 1: Transceiver System Configurations
General Description . . . . . . . . .2
Connectors & Cables . . . . . . . .3
Installation . . . . . . . . . . . . . . . . .6
Operations . . . . . . . . . . . . . . . .8
Technical Specifications . . . . . . .9
Cable Specifications . . . . . . . . .10
Troubleshooting . . . . . . . . . . .10
Contact Us . . . . . . . . . . . . . . .11
E-TBT-MC04
n
E-TBT-MC04
General Description
The E-TBT-MC04, IEEE802.3 compliant Ethernet transceiver uses 10Mbps Ethernet
CSMA/CD protocol to provide a connection interface to 10Base-T Ethernet unshielded
twisted-pair (UTP) cables. The transceiver connects to the AUI connector of an
Ethernet device via standard AUI cable.
Figure 2 shows the front and rear panels of the E-TBT-MC04 transceiver.
Rear
AUI Connector
Front
RJ-45 Connector
Figure 2: E-TBT-MC04 Transceiver Front and Rear Panels
Dimensions
Figure 3 shows the E-TBT-MC04 dimensions.
3.141
4 LEDs
0.812"
3-Positio
Switch
E-TBT-MC04 Features
• Provides a complete interface of the AUI to Ethernet UTP cable.
• Supports 10Mbps data transfer rates.
• Supports Carrier Sense Multiple Access/Collision Detection (CSMA/CD)
contention protocol.
• Drives UTP cable segments up to 100 meters (328ft).
• Supports selectable link and SQE test functions.
• Supports direct connections to host AUI ports.
• Detects and corrects reverse polarity on the receiving pair of UTP cables.
• Provides four LEDs: Transmit (TX), Receive (RX), Collision, and Status.
Connectors and Cables
E-TBT-MC04 AUI male connector
AUI D-sub 15-pin male connector accommodates AUI drop cables (50 meters max.).
The AUI connector is used to connect the transceiver to the AUI port of an Ethernet
device such as an Ethernet MAC controller, a repeater, or a hub via an AUI drop cable.
The AUI connector is shown in Figure 4. The AUI male connector pin assignments are
show in Table 1.
D-Sub 15-pin Male AUI Connector
1
8
1.757"
Figure 3: E-TBT-MC04 Dimensions
2
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9
15
Figure 4: E-TBT-MC04 AUI Male Connector Pin Assignments
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3
E-TBT-MC04
E-TBT-MC04
Connectors & Cables -- Continued
AUI connector -- continued
Table 1: AUI Male Connector Pinouts
Pin Name Pairs Use
3 DO + Transmit Data Out +
10 DO - Pair Data Out -
11 DO S Data Out Shield
5 DI + Receive Data In +
12 DI - Pair Data In -
4 DI S Data In Shield
7 CO + Option Control Out +
15 CO - Pair Control Out -
8 CO S Control Shield
2 CI + Collision Control In +
9 CI - Pair Control In -
1 CI S Control Shield
6 VC Power Voltage Common
13 VP Pair Voltage Plus
14 VS Voltage Shield
UTP cable (RJ-45 connector)
The 10Base-T, RJ-45 out jack is used to connect a 10Base-T Ethernet device via a
2-pair UTP cable. (Use category 3, 4, or 5 UTP cable.) The length of the UTP
cable can be up to 100m (328ft).
The RJ-45 connector pin configuration is shown in Figure 5. The pin assignments
are show in the Table 2..
Connectors & Cables -- continued
UTP cable (RJ-45 connector) -- continued
Table 2: RJ-45 Pin Assignments
Pin Out Jack Assignments
1 Outgoing Data 1 (+)
2 Outgoing Data 2 (-)
3 Incoming Data 1 (+)
4 Not connected
5 Not connected
6 Incoming Data 2 (-)
7 Not connected
8 Not connected
Wiring schemes for UTP cable and devices
How to install the UTP cable is determined by the characteristics of the 10Base-T UTP
port of the other device. The following shows some pinning examples:
45
3
2
1
6
7
8
Figure 5: RJ-45 Connector Pin Configuration
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Note: The device 10Base-T output jack is normally used to connect to another
10Base-T device. The vendor's 10Base-T device sometimes provides a
crossover option to set the jack as an input jack for connecting to a 10Base-T
Ethernet station.
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5
E-TBT-MC04
E-TBT-MC04
Installation
Switches
The E-TBT-MC04 has a 3-position DIP switch. See Figure 6. Two of the switches
provide options for enabling and disabling the SQE test and LINK test functions. Both
test functions are Ethernet and 10Base-T standards.
SW2
SW1
Front
Figure 6: E-TBT-MC04 Three-Position Switch
The following describes the switch settings:
SW1 = SQE test: UP is enabled/DOWN is disabled
SW2 = Link test: UP is enabled/DOWN is disabled
SW3 = Duplex: UP is half/DOWN is full
SQE test
The transceiver is shipped from the factory with the SQE test switch enabled. SQE
(Signal Quality Error) is the IEEE term for collisions. Depending on the Ethernet
device attached to the AUI connector, set the SW “1” to the DOWN position to disable
the SQE test function or to the "UP" position to enable the test.
The SQE Test (heartbeat) is a means of detecting a transceiver’s inability to detect
collisions. Without this test, it would not be possible to determine if the collision
detector is operating properly. The SQE test starts by generating a test signal on the
collision pair from the transceiver (or its equivalent) following every transmission on
the network. It does not generate any signals on the common medium.
Additionally, IEEE 802.3 specifications state that IEEE 802.3 compliant repeaters
must not be attached to transceivers that generate the heartbeat.
Link test
For UTP port connection, the E-TBT-MC04 implements the link integrity test
functions as specified in the IEEE 802.3 10Based-T standard. The E-TBT-MC04 will
transmit link test pulses to any UTP port after that port’s transmitter is inactive for a
range of 8 to 17 ms. These pulses are sent to confirm that a valid connection exists
between the E-TBT-MC04 and its attached device.
SW3
3-Position Switch
Installation -- Continued
Connecting to a Device AUI port
The E-TBT-MC04 can connect to any Ethernet device with an AUI port. To connect to
a device with an AUI port, an AUI cable or direct connection is required. See Figure 7.
AUI
E-TBT-MC04
AUI Cable Length 50 Feet Maximum
Figure 7: E-TBT-MC04 Connected to an AUI Device Port
Connecting to an RJ-45 device jack
IMPORTANT: If the transceiver is attached to an Ethernet repeater, a10Base-T hub,
or a wiring concentrator, the SQE test function should be disabled.
To connect the transceiver to a 10Base-T device via RJ-45 jacks, see Figure 8 and do
the following:
1. Select an appropriate length UTP cable for the connection.
2. Connect one end of the UTP cable to the RJ-45 OUT jack of the transceiver.
3. Route the free end of the UTP cable to the area where the10Base-T device is
located.
4. Connect the free end of the UTP cable to an RJ-45 IN jack on the 10Base-T device.
Hub
RJ-45 Plug
E-TBT-MCO4
10Based- T
Port
UTP Cable
Figure 8: E-TBT-MC04 Connected to a RJ-45 Device Jack
AUI Cable
AUI Device Interface
6
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7
E-TBT-MC04
E-TBT-MC04
Operations
LEDs
Figure 9 shows the E-TBT-MC04 LEDs:
Status
Collision Transmit
Figure 9: E-TBT-MC04 LEDs
The E-TBT-MC04 LEDs display the operational status of the transceiver. The
following table explains LED indications.
LED Description
Collision Blinks when detects a collision
Status ON Solid: UTP link established
Transmit Blinks when transmitting data on the RJ-45 cable
Receive Blinks when receiving data on the RJ-45 cable
*Note: The E-TBT-MC04 corrects reverse polarity on its receiving port UTP
cable automatically.
Receive
Blinks: No UTP link
5-Blink pattern: UTP polarity reversal*
Technical Specifications
For use with Transition Networks’ Model E-TBT-MC04 or equivalent.
Standards IEEE 802.3ab, IEEE 802.3
Data Rate 10 Mb/s
Dimensions 1.77" x 0.81” x 3.14" (44.96 mm x 20.57mm x 79.76mm)
Weight 0.2 lbs. (90.72 g) approximately
Power Consumption Not to exceed 75mA @ 12VDC
Power Source AUI port, 500 mA @ 12VDC
Operating Temp 0 to 50°C (32°F to 122°F )
Storage Temp: -25 to 85°C (-13°F to 185°F )
Humidity: 5 to 95%, non-condensing
Altitude: 0 to 10,000 feet
MTBF: 125,126 Bellcore hours. Calculated at 40C with a 10C
temperature rise.
Warranty Lifetime
Note: The information in this user’s guide is subject to change. For the most up-to-
date information on the E-TBT-MC04 Transceiver, view the user’s guide online at: www.transition.com.
IMPORTANT Copper based media ports: e.g., Twisted Pair (TP) Ethernet, USB,
RS232, RS422, RS485, DS1, DS3, Video Coax, etc. are intended connecting to intrabuilding (inside plant) link segments, not subject to lightening transients or power
faults. Copper based media ports: e.g., Twisted Pair (TP) Ethernet, USB, RS232,
RS422, RS485, DS1, DS3, Video Coax, etc. are NOT for connecting inter-building
(outside plant) link segments that are subject to lightening transients or power faults.
Failure to observe this notice could result in damage to equipment.
8
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9
E-TBT-MC04
E-TBT-MC04
Cable Specifications
The physical characteristics of the media cable must meet or exceed IEEE 802.3
specifications.
Copper cables
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
If the transceiver fails, determine the answer to the following questions:
1. Is the status LED flashing?
NO
• Verify that the AUI device is turned ON.
• Verify that the AUI cable from the transceiver to the AUI device port is
installed properly.
• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.
YES
• Go to step 2.
2. Is the RX LED flashing (receiving data)?
NO
• Is the LED ON Solid?
• Check twisted pair cable for proper connection
• Contact Tech Support: 1-800-260-1312, Int’l: 00-1-952-941-7600.
Yes
Go to step 3.
3. Is the TX LED ON?
NO
• Check twisted pair cable for proper connection.
• Is the LED flashing (transmitting data)?
• Restart the hardware to force re-initialization.
• 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.
Contact Us
Technical support
Technical support is available 24 hours a day.
US and Canada: 1-800-260-1312
International: 00-1-952-941-7600
Transition now
Chat live via the Web with Transition Networks Technical Support.
Log onto www.transition.com and click the Transition Now link.
Web-based seminars
Transition Networks provides seminars via live web-based training.
Log onto www.transition.com and click the Learning Center link.
E-Mail
Ask a question anytime by sending an e-mail to our technical support staff at
techsupport@transition.com
Address
Transition Networks: 10900 Red Circle Drive, Minnetonka MN 55343, U.S.A.
telephone: 952-941-7600; toll free: 800-526-9267; fax: 952-941-2322
Declaration of Conformity
Name of Mfg: Transition Networks
Model: E-TBT-MC04 Transceiver
Part Number(s): E-TBT-MC04
Regulation: EMC Directive 89/336/EEC
Purpose: To declare that the E-TBT-MC04 Transceiver to which this declaration refers is
in conformity with the following standards.
EN55022:1998 + A1:2000 + A1:2003 EN 55024:1998 + A1:2000 + A2:2003
I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s)
and Standard(s).
Stephen Anderson, Vice-President of Engineering Date
10900 Red Circle Drive, Minnetonka MN 55343 U.S.A.
August, 2008_____
10
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11
E-TBT-MC04
Compliance Information
CE Mark
FCC regulations
This equipment has been tested and found to comply with the limits for a Class A&B 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&B 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&B 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.
In accordance with European Union Directive 2002/96/EC of the European Parliament
and of the Council of 27 January 2003, Transition Networks will accept post usage
returns of this product for proper disposal. The contact information for this activity can
be found in the 'Contact Us' portion of this document.
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.
Trademark notice
All trademarks and registered trademarks are the property of their respective owners.
Copyright restrictions
© 2000, 2004-2006 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. 33363.C
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