Black Box LE180A Specifications download pdf (Page 2)

LE180A

Black Box Network Services, 724-746-550, www.blackbox.com

General Description

The LE180A 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 LE180A transceiver.

Figure 2: LE180A Transceiver Front and Rear Panels

Dimensions

Figure 3 shows the LE180A dimensions.

Figure 3: LE180A Dimensions

3-Positio

Switch

AUI Connector

Rear

RJ-45 Connector

Front

4 LEDs

3.141

1.757"

0.812"

Black Box Network Services, 724-746-550, www.blackbox.com

LE180A

LE180A 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

LE180A 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: LE180A AUI Male Connector Pin Assignments

D-Sub 15-pin Male AUI Connector

1 2 3 4 5 6 7

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Black Box LE180A Specifications Page 2