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Digi MIL-5008H User Manual

Fast ethernet tx hub
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The User's Guide
for the
MIL-5008H
Fast Ethernet TX Hub
Ethernet TX Hub
MIL•5008H
II
1
2
3
4
5
6
7
8
Link/Rx
Link/Rx Power
open 2.34 x .535
Partition
Partition Collision
Digi International
Sunnyvale, California
Doc. Number: P/N 75415 Rev. C

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Summary of Contents for Digi MIL-5008H

  • Page 1 The User's Guide for the MIL-5008H Fast Ethernet TX Hub Ethernet TX Hub MIL•5008H Link/Rx Link/Rx Power open 2.34 x .535 Partition Partition Collision Digi International Sunnyvale, California Doc. Number: P/N 75415 Rev. C...

  • Page 2: Table Of Contents

    1.2 Package Contents ...3 1.3 Digi Fast Ethernet Products...4 1.4 Features...4 1.5 Hardware Description...4 2. Theory of Operation ...5 3. Hardware Installation ...7 3.1 Rack Mount Ear Installation...7 3.2 Network Configuration...8 4. Specifications ...9 Model: MIL-5008H Fast Ethernet TX Hub...

  • Page 3: Introduction

    Install Guide I n t ro d u ct io n This guide describes the installation of the MIL-5008H hub and its integration into a network. It covers unpacking the product, connection of power, cabling requirements and connection to the RJ-45 ports, and installing the optional feet and rack mount ears.

  • Page 4: Features

    D ig i Fas t E t he r ne t P roduc t s In addition to the MIL-5008H Fast Ethernet hub, Digi has a full line of physical layer Fast Ethernet products by offering Fast Ethernet transceivers and converters.

  • Page 5: Hardware Description

    Install Guide H ardwar e De s c r i pt i on The MIL-5008H series hub ships with the hub, an external power supply, four rubber feet (shipped loose) that the user may attach, and rack mount ears are also included.
  • Page 6 10Mbit network. This limits the number of Class II hubs to two and Class I hubs to one for a single collision domain. Digi’s 5008H qualify as a class II repeater. This means one can cascade up to two 5008H hubs to drive a total of 14 ports in a single collision domain (two ports are lost in the cascading process.

  • Page 7: Hardware Installation

    32 transceivers to be linked on one MII cable attached to one port, less space is used on the workstation or network node. The Digi transceivers come defaulted as the first transceiver, but they have dip switches which allow for changing the address.

  • Page 8: Rack Mount Ear Installation

    The MIL-5008H may be used in multiple configurations. As a stand alone hub or as part of a larger network, the MIL-5008H is a very flexible product. The only limitation comes from the IEEE 802.3u specification of only two hubs/repeaters in a collision domain with a span of 205 meters and a segment length of 100 meters for twisted pair cabling.

  • Page 9: Specifications

    Install Guide By using a Digi MIL-180T converter, you convert the TX twisted pair signals to the FX fiber media. This allows you to extend the distance beyond 100 meters for a fiber segment. On the workstation side, connect either directly to the FX port or use the MIL-100FX transceiver to adapt the FX signals to MII.
  • Page 10 fitness for a particular purpose, except as expressly set forth in this warranty. In no event shall Digi be liable for incidental or consequential damages, costs, or expenses arising out of or in connection with the performance of the product delivered hereunder.

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