MCM-NE2000 [ETC]

Ethernet LAN Card; 以太网LAN卡


型号：	MCM-NE2000
厂家：	ETC
描述：	Ethernet LAN Card 以太网LAN卡局域网以太网
文件：	总2页 (文件大小：62K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LPM-NE2000

MCM-NE2000

Ethernet LAN Card

STD BUS, CMOS STD BUS

FEATURES

●

IEEE 802.3 Ethernet controller board

●

10 Mbps operation, CSMA/CD

●

Supports 10BASE2 thin coax, 10BASE5 via an AUI

and 10BASE-T

twisted pair interfaces

NE2000 compatible architecture

●

Software configurable settings for jumperless, auto-

configurable,

“easy-to-use” network designs

EPROM socket for auto-boot applications

●

Five LEDs onboard for visual status information

●

Compatible with many Network Operating Systems

drivers and utilities

Diagnostic loopback support for increased testability

●

Supports 20- or 24-bit memory addressing

●

Available for CMOS STD Bus: LPM-NE2000

●

Single +5 volt power required

The MCM/LPM-NE2000 module is a NE2000 compatible

local area network adapter board designed for the STD

Bus. As a result, most network operating systems, dri-

vers and utilities for using Ethernet in a PC-compatible

environment can be used without modification.

with the IEEE 802.3 standards. Supported interfaces

include both the Thin and Thick Ethernet and Twisted-

pair Ethernet (10BASE-T) on a single STD Bus board.

It conforms to the IEEE 802.3 and Ethernet standards for

a 10 Mbps Carrier Sense Multiple Access/Collision

Detection (CSMA/CD) local area network. The module

provides connectivity for 10BASE5 thick coax, 10BASE2

thin coax, and 10BASE-T twisted-pair on a single board.

Also an EPROM socket is included to support user

installed remote boot extensions.

Attachment Unit Interface (AUI) - The LPM/MCM-

NE2000 can be used with an external Medium

Attachment Unit (MAU) so that connectivity to

10BASE5 or another medium can be achieved. This

interface is via the 15-pin D-type connector at the board

edge. The board provides a +12 volt line to power the

transceivers via the AUI connector.

FUNCTIONAL CAPABILITY

Bus Interface - The LPM-NE2000 is the CMOS STD Bus

version and the MCM-NE2000 is the STD Bus version of

this card. The LPM/MCM prefix is used when the card

has the same features and functionality.

Twisted Pair Interface - The MCM/LPM-NE2000 also

supports the use of unshielded twisted pair cable so

that it can plug into a concentrator in a 10BASE-T net-

work. An RJ-45 connector is located at the board edge.

Addressing - The LPM/LPM-NE2000 supports 20- or 24-

bit addressing for memory and 10-bit for I/O for use with

XT or AT compatible STD Bus processors.

Thin Ethernet Connection - The board has a coaxial

transceiver interface with an onboard RG-58 type BNC

connector. A DC/DC power supply provides isolated

power from the STD Bus +5 volt supply.

Interrupts - The LPM/MCM-NE2000 supports the STD-

8088 interrupt priority scheme on the backplane with 4

separate jumper selectable priority levels.

EPROM Socket - A socket is provided to support a user

installed device for auto-boot software drivers.

Ethernet Controller - The LPM/MCM-NE2000 module

uses a 8390 compatible integrated controller. This con-

troller provides the Ethernet Media Access Control

(MAC), Encoder-Decoder (ENDEC) with an AUI inter-

face, and 10BASE-T transceiver functions in accordance

EEPROM - The configuration information describing

the device’s architecture, address, interrupt, etc. can

either be loaded from jumpers or from an EEPROM.

Use of the EEPROM allows the board to be configured

solely by the software thus providing a more user-

friendly Ethernet adapter. It is shipped from the facto-

ry with the EEPROM enabled and preprogrammed.

Mechanical

Dimensions: 4.5” x 7.0”(including connector overhang)

Monitor LEDs - LEDs are on the LPM/MCM-NE2000 to

provide a visual status of the module. The green

Transmit and Receive LEDs light when the module is

transmitting data to or receiving data from the network.

The yellow Link Integrity LED lights when there is a

valid connection to a 10BASE-T concentrator and the

yellow Board Select LED lights when the module is

selected. The red LED lights when a collision is detect-

ed.

Connectors

Thin Ethernet: BNC connector for RG58 A/U cable

Thick Ethernet: DB-15F

Twisted Pair: RJ-45

Environmental

Operating Temperature: 0 to +65^oCelsius

Non-condensing relative humidity: 5% to 95%

ORDERING INFORMATION

Software - The board emulates one of the most popular

Ethernet Adapter architectures - Novell’s NE2000

adapter. This means that most PC-compatible drivers,

utilities and Ethernet supported operating systems will

work directly with this module.

MCM-NE2000 STD Bus Ethernet LAN card

LPM-NE2000 CMOS STD Bus Ethernet LAN card

SPECIFICATIONS

Electrical

Interface Bus: STD-8088

Data rate: 10 megabits per second

Protocol: CSMA/CD

Memory socket: Accepts 27C256 EPROM or equiv.

I/O Addressing: 10-bit

Memory Addressing: 20 or 24-bit decoding

Power Requirements

Vcc = +5V +/- 5% at 100 mA, 400mA with DC/DC

converter enabled

Note: The AUI interface transceiver requires +12V,

refer to the adapter manufacturer’s specifica-

tion for current requirements.

715 Stadium Drive • Arlington, Texas 76011 • (817) 274-7553 • http://www.winsystems.com