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CHAPTER 1
INTRODUCTION
Welcome to the Cabletron Systems
MicroMMAC-22T/-24T/-42T/
-44T Stackable Token Ring Intelligent Hub User’s Guide
. This manual
provides installation instructions, network requirements, reference
information, and operating instructions for the MicroMMAC-T (Figure
1-1) family of stackable hubs. Installing the MicroMMAC-T requires
familiarity with the physical layer components of Token Ring (IEEE
802.5) data communications networks.
NOTE
: Unless otherwise specified, this manual uses the term
MicroMMAC-T to collectively refer to the MicroMMAC-22T, the
MicroMMAC-24T, the MicroMMAC-42T, and the MicroMMAC-44T.
.
Figure 1-1. The MicroMMAC-T
1.1 CONTENTS OVERVIEW
This manual contains the following information:
Chapter 1,
Introduction
, outlines the contents of this manual and
describes features of the MicroMMAC-T and its add-on components. It
also lists sources where more information on Token Ring network
implementation can be found.
Chapter 2,
Requirements/Specifications
, describes cabling requirements,
network guidelines, and MicroMMAC-T operating specifications.
Chapter 3,
Installation,
contains MicroMMAC-T installation instructions
and discusses network connections using various media types. This
chapter includes instructions for setting the Ring Speed Switch, the Reset
Switch, the NVRAM Switch, and the TPIM Phantom Switch. It also
RO
TOKEN RING HUB
WITH
LANVIEW®
SUPPORTING 100 OHM UTP CABLE
MicroMMAC-24T
RESET
CPU
ACT
MGMT
16 Mb/s
COM 1COM 2
DISPLAY
SPEED
16M4M
TPIM
6 5 4 3 2 1
18 17 16 15 14 13
24 23 22 21 20 19
12 11 10 9 8 7
RI
LCD
TPIM
Slot
Ring Out