Transition Networks E-TBT-MC05 User Manual
E-TBT-MC05 10Base-T
Transceiver
• Stand-Alone model
• Attached Unit Interface (AUI) to
Ethernet RJ-45 connectors
• No external power requirement
General Description . . . . . . . . .2
Connectors & Cables . . . . . . . .3
Installation . . . . . . . . . . . . . . . . .6
Operations . . . . . . . . . . . . . . . .8
Technical Specifications . . . . . . .9
Cable Specifications . . . . . . . . .10
Troubleshooting . . . . . . . . . . .10
Contact Us . . . . . . . . . . . . . . .11
The E-TBT-MC05 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.
Workstation
E-TBT-MC05E-TBT-MC05
Workstatio n
10-Base-T Hub
E-TBT-MC05
HUB with AUI Port
Or
Or
Various Transceiver System Configurations
Figure 1 shows various examples of transceiver system configurations.
Figure 1: Transceiver System Configurations
E-TBT-MC05
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General Description
The E-TBT-MC05, 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-MC05 transceiver.
Figure 2: E-TBT-MC05 Transceiver Front and Rear Panels
Dimensions
Figure 3 shows the E-TBT-MC05 dimensions.
Figure 3: E-TBT-MC05 Dimensions
3-Posit ion
Switch
AUI Connector
Rear
RJ-45 Connector
Front
4 LEDs
3.141
1.757"
0.812"
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3
E-TBT-MC05
E-TBT-MC05 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-MC05 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.
Figure 4: E-TBT-MC05 AUI Male Connector Pin Assignments
D-Sub 15-pin Male AUI Connector
1
8
9
15
E-TBT-MC05
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Connectors & Cables -- Continued
AUI connector -- continued
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..
1
2
3
45
6
7
8
Figure 5: RJ-45 Connector Pin Configuration
Table 1: AUI Male Connector Pinouts
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5
Connectors & Cables -- continued
UTP cable (RJ-45 connector) -- continued
E-TBT-MC05
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:
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.
Table 2: RJ-45 Pin Assignments
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