Transition Networks E-TBT-MC04 User Manual

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

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

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

1.757"

Figure 3: E-TBT-MC04 Dimensions

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

Figure 4: E-TBT-MC04 AUI Male Connector Pin Assignments

techsupport@transition.com -- Click the “Transition Now” link for live Web chat.

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:

Figure 5: RJ-45 Connector Pin Configuration

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

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.

techsupport@transition.com -- Click the “Transition Now” link for a live Web chat.

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