INTRODUCTION
1-1
CHAPTER 1
INTRODUCTION
Welcome to the
93 Series Active Token Ring Media Interface
Modules Installation Guide
. This manual serves as a reference for
installing and troubleshooting Cabletron Systems TRMIM-22A™,
TRMIM-24A™, TRMIM-42A™, and TRMIM-44A™.
The TRMIM-22A, TRMIM-24A, TRMIM-42A, and TRMIM-44A
comprise a family of
Active
Token Ring Concentrator modules. The
TRMIM-22A and TRMIM-24A provide 12 and 24 active trunk
coupling unit (TCU) ports, respectively, that support voice grade
unshielded twisted pair (UTP) 100 ohm cabling. The TRMIM-42A
and TRMIM-44A have 12 and 24 active TCU ports, respectively,
supporting IBM® type 1, 2, 6, and 9 shielded twisted pair (STP) 150
ohm cabling.
Both UTP concentrator modules and both STP concentrator
modules are equipped with RJ-45 modular connectors. The
concentrator module RJ-45 connectors provide for connection of the
cabling shield. All four concentrator modules are designed for
installation in any Cabletron Systems Multi Media Access Center
(MMAC™) equipped with a Flexible Network Bus (FNB™). All
four concentrator modules are IEEE 802.5 compliant and
compatible with IBM™ products.
Note:
The term
Concentrator Module
is used throughout this manual
when describing features and functions that are common to the TRMIM-
22A, TRMIM-24A, TRMIM-42A, and TRMIM-44A. The terms
TRMIM-22A, TRMIM-24A, TRMIM-42A, and TRMIM-44A are used
when it is necessary to describe features that are unique to any device.
1.1
USING THIS MANUAL
Prior to installing and operating your concentrator module, read
through this manual completely to familiarize yourself with its
