Cabletron Systems MT-800 User Manual
MT-800 MULTIPORT
TRANSCEIVER
USER'S MANUAL
CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-0505
NOTICE
NOTICE
Cabletron Systems reserves the right to make changes in specifications
and other information contained in this document without prior notice.
The reader should in all cases consult Cabletron Systems to determine
whether any such changes have been made.
IN NO EVENT SHALL CABLETRON SYSTEMS BE HELD LIABLE
FOR ANY INCIDENTAL, INDIRECT, SPECIAL, OR
CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING, BUT
NOT LIMITED TO, LOST PROFITS) ARISING OUT OF, OR
RELATED TO, THIS MANUAL OR THE INFORMATION
CONTAINED IN IT, EVEN IF CABLETRON SYSTEMS HAS BEEN
ADVISED OF, KNOWN, OR SHOULD HAVE KNOWN, THE
POSSIBILITY OF SUCH DAMAGES.
© Copyright November 1991 by
Cabletron Systems Inc.
P.O. Box 5005, E. Rochester, NH 03867-0505
All Rights Reserved
Printed in the United States of America
Order number: 9030005-02 Nov. 91
LAN-MD and LANVIEW are trademarks of Cabletron Systems Inc.
ii
NOTICE
FCC NOTICE
This device complies with Part 15 of FCC rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
WARNING: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment uses, generates, and can
radiate radio frequency energy and if not installed in accordance with
the operator's manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause interference in which case the user will be required at
his own expense to correct the interference.
If this equipment does cause interference to radio or television, which
can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
• Re-orient the receiving antenna.
• Relocate the transceiver with respect to the antenna.
• Move the transceiver away from the receiver.
• Plug the Ethernet device into a different outlet so that the
device and the receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced
radio/television technician for additional suggestions. The user may
find the following booklet prepared by the Federal Communication
Commission helpful:
“How to Identify and Resolve Radio TV Interference Problems”
This booklet is available from the U.S. Government Printing Office,
Washington D.C. 20402 - Stock No. 004-000-00345-4.
iii
CONTENTS
TABLE OF CONTENTS
Notice...................................................................................................... ii
FCC Notice.............................................................................................iii
CHAPTER 1 INTRODUCTION
1.1 Using this Manual.........................................................................1-1
1.2 Getting Help..................................................................................1-1
1.3 An Overview of the MT-800..........................................................1-2
1.4 Related User Manuals ..................................................................1-3
CHAPTER 2 NETWORK REQUIREMENTS/
SPECIFICATIONS
2.1 Network Design Guildlines...........................................................2-1
CHAPTER 3 INSTALLATION
3.1 Unpacking the MT-800.................................................................3-1
3.2 Setting the Switches on the MT-800............................................3-1
3.2.1 Setting the SQE Switch.......................................................3-1
3.2.2 Setting the Loopback Function............................................3-2
3.3 Installing the MT-800...................................................................3-3
3.3.1 Attaching the MT-800 to a Network ...................................3-3
3.3.2 Connecting Devices to the MT-800......................................3-4
CHAPTER 4 TESTING AND LANVIEW
4.1 Installation Checkout....................................................................4-1
4.2 Using LANVIEW...........................................................................4-3
v
INTRODUCTION
CHAPTER 1
INTRODUCTION
Welcome to the Cabletron Systems MT-800 Multiport Transceiver. We
have designed this manual to introduce you to the MT-800 and explain
how it is used with other Cabletron Systems products in creating a
complete network solution.
1.1 USING THIS MANUAL
You should read this manual thoroughly to gain a full understanding
of the MT-800 and its capabilities.
Chapter 1,
MT-800 is connected to a network and how it operates. This chapter
also includes a list of related user manuals.
Chapter 2,
network design guidelines plus operating specifications and power
requirements for the MT-800.
Chapter 3,
setting its switches and installing the Multiport Transceiver on your
network.
Chapter 4,
that the MT-800 is properly installed on your network and a
description of the LANVIEW® LEDs and their function.
We assume that you have a general working knowledge of Ethernet or
IEEE 802.3 type data communications networks and their physical
layer components.
Introduction
Network Requirements/Specifications
Installation
Testing and LANVIEW
, contains general information about how the
, contains the steps for unpacking the MT-800,
, contains procedures for checking
, lists the
1.2 GETTING HELP
If any additional support is needed related to the Cabletron Systems
MT-800, contact Cabletron Systems Technical Support at:
Cabletron Systems
P.O. Box 5005
Rochester, NH 03867-0505
Phone: (603) 332-9400
Page 1-7
INTRODUCTION
1.3 AN OVERVIEW OF THE MT-800
The MT-800 (Figure 1-1) is an eight port transceiver designed to link
up to eight network or host devices together. The MT-800 allows these
devices to communicate with a network or just between themselves.
The MT-800 is compatible with specifications for a 10 Mb/s Medium
Access Unit under Ethernet Versions 1.0 and 2.0, and IEEE 802.3
standards.
The MT-800 works in two modes - Local or Network. In the Local mode,
the MT-800 only receives and transmits traffic from the devices
attached to it. This mode is enabled by the Loopback (LBK) switch on
the front of the MT-800.
The MT-800 can also be configured with another transceiver to allow
the devices attached to it to communicate with a larger network. The
other transceiver could be attached to a thick or thin coax cable, a fiber
optic link or a twisted pair segment.
The MT-800 contains nine AUI ports. Ports 1-8 connect the MT-800 to
network devices or host units. These eight ports act as transceivers.
The ninth port allows the MT-800 to be connected to an external
transceiver, giving the other devices access to the network.
The MT-800 can also be configured in a cascaded method with a second
layer of MT-800s. Up to eight additional MT-800s could be connected
through one MT-800, allowing up to 64 users.
MT-800
ETHERNET/IEEE 802.3
MULTIPORT TRANSCEIVER UNIT (MAU)
WITH
LANVIEW™
NETWORK LOCAL
PWR
RCV
CP
LBK SQE
PORT
5
6
7
8
T
1
R
A
2
N
S
3
M
I
4
T
Figure 1-1. MT-800
Page 1-8
INTRODUCTION
The MT-800 also incorporates Cabletron Systems LANVIEW
diagnostic and monitoring LEDs. Should a physical layer problem
arise, troubleshooting of power failures, collisions, cable faults, or
many other problems can be diagnosed rapidly using these LEDs.
1.4 RELATED USER MANUALS
The manuals identified below should be used to supplement the
procedures and other technical data provided in this manual. The
procedures contained in these manuals will be referenced rather than
repeated in this manual:
Cabletron Systems
Manual.
Cabletron Systems
Cabletron Systems
Cabletron Systems
Manual.
LAN-MD Portable Ethernet Tester
ST-500 Coaxial Transceiver
TPT Twisted Pair Transceiver
FOT-F1 Fiber Optic Transceiver
User's Manual.
User's Manual.
User's
User's
Page 1-9
NETWORK REQUIREMENTS/SPECIFICATIONS
CHAPTER 2
NETWORK REQUIREMENTS/SPECIFICATIONS
This chapter contains the network design guidelines, specifications,
power supply requirements, and environmental guidelines for
Cabletron Systems MT-800.
Review all specifications and requirements outlined in this chapter
before you install the MT-800. All outlined conditions must be met to
ensure satisfactory performances of your network.
NOTE:
specifications at any time without notice.
2.1 NETWORK DESIGN GUIDELINES
The following network design guidelines must be followed when
connecting the MT-800 Multiport transceiver to other devices. If not,
unsatisfactory network performance may result.
Cabletron Systems reserves the right to change these
• The transceivers that the MT-800 is connected to must meet
IEEE 802.3 standards.
• The AUI cables connecting the MT-800 to the transceivers on
the network must be IEEE 802.3 type cables.
• The length of the AUI cables attached to the MT-800 is
dependent on the configuration:
a. When one MT-800 is being used in a stand alone
configuration, the total length of any AUI cable from the
MT-800 to a node must not exceed 40 meters (Figure 2-1).
Page 2-11
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