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Introduction, Chapter 1 – Enterasys Networks MicroMMAC-T User Manual

Page 11

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Chapter 1

Introduction

How to use this guide; related guides; software conventions; getting help; MicroMMAC-T firmware
versions

Welcome to the NetSight Element Manager for the MicroMMAC-T User’s Guide.
We have designed this guide to serve as a simple reference for using NetSight
Element Manager for the MicroMMAC-22T/24T and MicroMMAC-42T/44T.

The MicroMMAC-22T/24T

and MicroMMAC-42T/44T

are intelligent Token

Ring hubs that provide front panel ports for network connections, a rear-panel
HubSTACK

Interconnect Bus port for stackable connections, and a rear-panel

port for one optional Bridge Router Interface Module

(BRIM

®

) that provides the

MicroMMAC-T

with bridging and routing capability. All the devices fully

conform to the IEEE 802.5 standards, and provide the flexibility to connect
networks using a variety of media via 12 or 24 active RJ45 ports for STP or UTP
lobe connections. All of the models are functionally identical; the only difference
among them is the configuration of the front panel ports: the MicroMMAC-22T
has 12 built-in active UTP RJ45 lobe ports; the MicroMMAC-24T has 24 built-in
active UTP RJ45 lobe ports; the MicroMMAC-42T has 12 built-in active STP RJ45
lobe ports; and the MicroMMAC-44T has 24 built-in active STP RJ45 lobe ports.
Using the MicroMMAC-T’s external HubSTACK-IN and HubSTACK-OUT
connections on the rear of the unit, you can stack as many as four of Cabletron’s
STH Series non-intelligent Token Ring hubs with one MicroMMAC-T, and the
entire stack can be managed by the MicroMMAC-T as a single Token Ring. This
configuration allows you to expand the connectivity of the MicroMMAC-T to up
to 120 ports.

NOTE

Since the devices covered in this User’s Guide are functionally identical, they will be
jointly referred to throughout the text as the MicroMMAC-T. Likewise, since the only
differences in the windows for each device will be the device name (MicroMMAC-24T,
MicroMMAC-44T, etc.) and the number of ports displayed, only the MicroMMAC-24T
windows will be shown.