Cabletron Systems TPMIM-22, TPMIM-32, TPMIM-34, TPMIM-24 Installation Manual

10BASE-T TWISTED PAIR

MEDIA INTERFACE MODULE

(TPMIM-22/24/32/34)

INSTALLATION GUIDE

CABLETRON SYSTEMS, P.O. Box 5005, Rochester, NH 03867-5005

INC.

The Complete Networking Solution

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.

The hardware, firmware, or software described in this manual is subject to change
without notice.

IN NO EVENT SHALL CABLETRON SYSTEMS BE 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 April 1991 by:
Cabletron Systems, Inc.

P.O. Box 5005, Rochester, NH 03867-5005
All Rights Reserved

Printed in the United States of America
Order number: 9030424 Apr. 91

LANVIEW is a registered trademark of Cabletron Systems, Inc.
SPECTRUM, Remote LANVIEW/Windows, TPMIM-22,

TPMIM-24, TPMIM-32, TPMIM-34, MMAC-8, MMAC-8FNB,
MMAC-5FNB, MMAC-3, MMAC-3FNB, PSM-R, MMAC-5PSM,
IRM-2, IRBM, TPT and LAN-MD are trademarks of

Cabletron Systems, Inc.

i

FCC 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 uses and generates and can radiate radio frequency
energy and if not installed properly and used in accordance with the instruction
manual, may cause interference to radio communications. It has been tested and
found to comply with the limits for a Class A digital device pursuant to Subpart
J, of Part 15, of FCC Rules, which are designed to provide reasonable protection
against such interference in a commercial environment. Operation of this
equipment in a residential area is likely to cause interference in which case the
user at his own expense will be required to take whatever steps may be necessary
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 MMAC with respect to the receiving antenna.

• Move the MMAC away from the receiver.

• Plug the MMAC into a a different outlet so that the MMAC and the receiver are on different branch
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.

ii

CONTENTS

CONTENTS

CHAPTER PAGE

CHAPTER 1 - INTRODUCTION

1.1 Using This Manual .....................................................................1-1

1.2 Getting Help..............................................................................1-2

1.3 The 10BASE-T Twisted Pair Media Interface Modules........................1-3

1.3.1 The TPMIM-22/24..........................................................1-4

1.3.2 The TPMIM-32/34..........................................................1-4

1.4 Related Manuals .........................................................................1-4

CHAPTER 2 - NETWORK REQUIREMENTS/SPECIFICATIONS

2.1 Network Requirements.................................................................2-1

2.2 Operating Specifications...............................................................2-2

CHAPTER 3 - INSTALLATION

3.1 Unpacking the TPMIM................................................................3-1

3.2 Installing the TPMIM into the MMAC........................................... 3-1

3.3 Connecting the TPMIM to the Network..........................................3-2

3.3.1 Attaching Twisted Pair Segments to the

TPMIM-22/24................................................................3-2

3.3.2 Attaching Twisted Pair Segments to the

TPMIM-32/34................................................................3-4

CHAPTER 4 - TESTING AND LANVIEW

4.1 Installation Checkout...................................................................4-1

4.2 Using LANVIEW .......................................................................4-2

iii

INTRODUCTION

CHAPTER 1
INTRODUCTION

Welcome to the Cabletron Systems

Module (TPMIM™) Installation Guide

serve as a simple reference guide for the TPMIM. Before using the TPMIM, you
need to carefully read through this manual to gain a full understanding of the TP­MIM and its capabilities.

Cabletron Systems offers four versions of the 10BASE-T Twisted Pair Media In­terface Module (Fig. 1-1) for connecting 10BASE-T Twisted Pair Segments to a
Multi Media Access Center (MMAC™):

• TPMIM-22 with 12 RJ-45 ports.

• TPMIM-24 with 24 RJ-45 ports.

• TPMIM-32 with one 50 pin Champ connector.

• TPMIM-34 with two 50 pin Champ connectors.

1.1 USING THIS MANUAL

10BASE-T Twisted Pair Media Interface

. We have designed this manual to

Chapter 1,
Cabletron Systems' TPMIM. This chapter also includes a list of related manuals.

Chapter 2,
requirements that must be met before installing the TPMIM. The specifications
for the TPMIM are also included in this section.

Chapter 3,
into the MMAC, connecting twisted pair segments to the MIM, and connecting
10BASE-T Ethernet devices to the TPMIM.

Introduction

Installation Requirements/Specifications,

Installing the TPMIM

, discusses the capabilities and special features of

, contains instructions for installing the TPMIM

contains a list of network

Page 1-1

INTRODUCTION

Figure 1-1. 10BASE-T Twisted Pair Media Interface Modules

Page 1-2

INTRODUCTION

Chapter 4,

Testing and Troubleshooting,

provides procedures for testing and

troubleshooting the installation of the TPMIM. Instructions for using LAN­VIEW®, Cabletron Systems’ built-in visual diagnostic and status monitoring sys-

tem, are also included.
We assume that you have a general working knowledge of Ethernet or IEEE 802.3

type data communications networks and their physical layer components.

1.2 GETTING HELP

If you need additional support related to the Cabletron Systems TPMIM, or if you
have any questions, comments or suggestions related to this manual, feel free to
contact Cabletron Systems' Technical Support at:

Cabletron Systems
35 Industrial Way
P.O. Box 5005
Rochester, NH 03867-5005
Phone: [phone]

1.3 THE 10BASE-T TWISTED PAIR MEDIA INTERFACE MODULES

Cabletron Systems' 10BASE-T Twisted Pair Media Interface Modules provide 12
or 24 ports, utilizing either RJ-45 ports or 50-pin Champ connectors. When used
with the MMAC-8/FNB™, up to 168 10BASE-T twisted pair segments can be
connected.

Distance and Cable Type

The TPMIM supports 10BASE-T Twisted Pair Segments up to 125 meters in
length. These segments can be made from a wide variety of popular unshielded
twisted pair cabling with properties varying from 75-165 ohm impedance and 22­26 AWG conductor size.

Page 1-3

INTRODUCTION

Polarity Detection and Correction

Each Port on the TPMIM incorporates a Polarity Detection and Correction fea­ture. The Polarity Detection and Correction feature allows the TPMIM to pass
data regardless of the polarity of the twisted pair segments’ receive link. If polar­ity is reversed, the LNK LED will flash to indicate this condition, once a good
packet passes through the port.

NOTE

: If this condition exists, the segment should be removed from the TPMIM
and the wiring corrected in the event that, in the future, the segment needs to be
attached to a device without the Polarity Correction and Detection feature.

Multi Media Access Centers

The Cabletron Systems’ 10BASE-T Twisted Pair Media Interface Modules are
designed to be installed into the Cabletron Systems MMAC. The modular design
of the MMAC allows the TPMIM to
co-exist with other Media Interface Modules (MIM™s) to provide a variety of dif­ferent media connections on any one point. This means that the TPMIM can be
used by itself or in conjunction with any combination of other MIMs accommo­dating Fiber Optic Cable, Thick or Thin Ethernet Coaxial Cabling, or AUI Ca­bling.

Each packet entering the TPMIM is repeated by the MMAC’s repeater module.
These include the Cabletron Systems Intelligent Repeater Module (IRM-2™) and
Intelligent Repeater Bridging Module (IRBM™). Each packet that enters the re­peater module is regenerated and retimed, which assures data integrity and maxi­mum data path distance. In addition, the repeater feature ensures fault isolation,
since the repeater module will automatically segment problem ports from the net­work. A segmented port will be automatically reconnected to the network once
the port has received a good packet.

Page 1-4

INTRODUCTION

The repeater module also allows you to access the network management capabil­ities that enable you to control the TPMIM and its attached segments. For exam­ple, information on the number of good packets and collisions that have passed
through the TPMIM and each port on the MIM can be gathered. A variety of net­work management programs can be used to manage the TPMIM, including:

• Cabletron Systems SPECTRUM™.

• Cabletron Systems Remote LANVIEW/Windows™.

• Cabletron Systems Local Management.

• Third party SNMP compliant network management packages.

LANVIEW LEDs

The TPMIM incorporates LANVIEW, Cabletron Systems’ built-in diagnostic and
status monitoring LED system. These LEDs, incorporated into all Cabletron Sys­tems’ products, will assist you in rapidly diagnosing network problems as they
arise. Each port on the TPMIM has two LANVIEW LEDs: the Link OK (LNK)
LED and the Receive (RCV) LED. The Link OK LED will remain lit as long as
a link is maintained between the applicable port on the module and the 10BASE­T device at the other end of the cable. If a link is not established, the LED will not
be lit. The Receive LED will be lit when activity is detected on the segment.

The TPMIM also has one Collision (CLN) LED, which indicates a collision on
any segment attached to one of the ports, and one Error (ERR) LED, which indi­cates a potential temperature problem within the MMAC.

1.3.1The TPMIM-22/24

The TPMIM-22/24 design incorporates built-in RJ-45 ports, 12 on the TPMIM­22 and 24 on the TPMIM-24. This design makes it easier to incorporate twisted
pair wiring schemes into your network. The TPMIM-22/24 allows you to directly
connect the segments to patch panels or other 10BASE-T Ethernet devices, elim­inating the need for Punch-Down blocks or additional patch panels.

Each RJ-45 port on the TPMIM-22/24 is internally crossed over, eliminating the
need to cross over the twisted pair segment going from the port to the 10BASE-T
device at the other end of the segment.

Page 1-5

INTRODUCTION

1.3.2The TPMIM-32/34

The TPMIM-32/34 provides an alternative method for incorporating 10BASE-T
twisted pair segments into an existing twisted pair wiring scheme. The TPMIM­32 has one 50 pin Champ connector that allows you to connect 12 segments to the
module. The
TPMIM-34 has two 50 pin Champ connector that allows you to connect 24 seg­ments to the module. The 50 Pin Champ connector allows the MIM to tie directly
into Punch-Down blocks and patch panels. This connector complies with all
punch down and harmonica specifications.

1.4 RELATED MANUALS

The manuals listed below should be used to supplement the procedures and other
technical data provided in this manual. The procedures in them will be referenced,
where appropriate, but will not be repeated.

Cabletron Systems’

5FNB and MMAC-8/FNB)

Cabletron Systems

Multi-Media Access Center (MMAC-3/FNB MMAC-

LAN-MD

Overview and Set Up Guide.

User Manual

.

Page 1-6

REQUIREMENTS/SPECS.

CHAPTER 2

INSTALLATION REQUIREMENTS/SPECIFICATIONS

Before you attempt to install the Cabletron Systems 10BASE-T Twisted Pair Me­dia Interface Modules, review the network requirements that are outlined in this
chapter. Also, refer to the operating specifications that are listed.

All conditions, guidelines, specifications, and requirements included in this chap­ter must be met to ensure satisfactory performance of the TPMIM. Failure to fol­low these guidelines may result in unsatisfactory network performance.

2.1 NETWORK REQUIREMENTS

When connecting 10BASE-T twisted pair segments to the TPMIM, you must fol­low the network guidelines listed below.

•

Length

transceivers be able to transmit over a 100 meter
(328 feet) link using 24 AWG unshielded twisted pair wire.
10BASE-T specifies no maximum link length.

Due to cable delay, the maximum link length is always limited to about 200
meters (656 feet), regardless of the cable type.

As a general rule, links of up to 150 meters (492 feet) long are achievable for
unshielded and shielded twisted pair cable, with a maximum of 200 meters
(656 feet) due to cable delay. For each connector or patch panel in the link,
subtract 12 meters (39.4 feet) from the 150 meter limit. This will allow for
links of up to 126 meters (413.4 feet) using standard 24 AWG UTP wire and
two patch panels within the link. Higher quality low attenuation cables may
be required when using links greater than 126 meters.

- The IEEE 802.3 10BASE-T standard requires that 10BASE-T

Page 2-1

REQUIREMENTS/SPECS.

•

Insertion Loss

- The maximum insertion loss allowed for a 10BASE-T link
is 11.5 dB at all frequencies between 5.0 and 10.0 MHz. This includes the
attenuation of the cables, connectors, patch panels, and reflection losses due
to impedance mismatches in the link segment.

•

Impedance

- Unshielded twisted pair cables typically have an impedance of
between 85 to 110 ohms. Shielded cables, such as Type 1 cable, can also be
used. You should remember that the impedance of Type 1 cable is typically
150 ohms, as this increases the signal reflection caused by the cable. Since
the cable is shielded, signal reflection has little effect on the received signal’s
quality due to the lack of crosstalk between the shielded cable pairs.
Cabletron Systems’ 10BASE-T twisted pair products will work on shielded
twisted pair cable with 75 to 165 ohms impedance.

•

Jitter

- Intersymbol interference and reflections can cause jitter in the bit cell
timing, resulting in data errors. A 10BASE-T link must not generate more
than 5.0 nsec of jitter. If your cable meets the impedance requirements for a
10BASE-T link, jitter should not be a concern.

•

Delay

- The maximum propagation delay of a 10BASE-T link segment must
not exceed 1000 nsec. This 1000 nsec maximum delay limits the maximum
link segment length to no greater than 200 meters.

•

Crosstalk

- Crosstalk is caused by signal coupling between the different ca­ble pairs contained within a multi-pair cable bundle. 10BASE-T transceivers
are designed so that the user does not need to be concerned about cable
crosstalk, provided the cable meets all other requirements.

•

Noise

- Noise can be caused by either crosstalk or externally induced impuls­es. Impulse noise may cause data errors if the impulses occur at very specific
times during data transmission. Generally, the user does not need to be con­cerned about noise. If noise related data errors are suspected, it may be nec­essary to either reroute the cable or eliminate the source of the impulse noise.

Page 2-2

REQUIREMENTS/SPECS.

•

Temperature

- Multi-pair, PVC 24 AWG telephone cables have an attenua­tion of approximately 8 to 10 dB/100 m at 20° C. The attenuation of PVC
insulated cable varies significantly with temperature. At temperatures greater
than 40° C, we strongly recommend that you use plenum rated cables to en­sure that cable attenuation remains within specification.

2.2 OPERATING SPECIFICATIONS

The operating specifications for the Cabletron Systems TPMIM are included in
this section. Cabletron Systems reserves the right to change these specifications
at any time without notice.

RJ-45 INTERFACE (TPMIM-22/24)

Internal Transceiver:Cabletron Systems’ TPT 10BASE-T Twisted Pair

Transceiver.

Type:Internally Crossed Over RJ-45 Jack

Pin 1 RX+ Pin 5 No Connection

2 RX- 6 TX­3 TX+ 7 No Connection
4 No Connection 8 No Connection

Page 2-3

REQUIREMENTS/SPECS.

CHAMP CONNECTOR INTERFACE (TPMIM-32/34)

Type: 50 Pin Champ Connector

Pin Signal Wire Color Pin Signal Wire Color

1 RX 1- Blue/White 26 RX 1+ White/Blue
2 TX 1- Orange/White 27 TX 1+ White/Orange
3 RX 2- Green/White 28 RX 2+ White/Green
4 TX 2- Brown/White 29 TX 2+ White/Brown
5 RX 3- Gray/White 30 RX 3+ White/Gray
6 TX 3- Blue/Red 31 TX 3+ Red/Blue
7 RX 4- Orange/Red 32 RX 4+ Red/Orange
8 TX 4- Green/Red 33 TX 4+ Red/Green
9 RX 5- Brown/Red 34 RX 5+ Red/Brown
10 TX 5- Gray/Red 35 TX 5+ Red/Gray
11 RX 6- Blue/Black 36 RX 6+ Black/Blue
12 TX 6- Orange/Black 37 TX 6+ Black/Orange
13 RX 7- Green/Black 38 RX 7+ Black/Green
14 TX 7- Brown/Black 39 TX 7+ Black/Brown
15 RX 8- Gray/Black 40 RX 8+ Black/Gray
16 TX 8- Blue/Yellow 41 TX 8+ Yellow/Blue
17 RX 9- Orange/Yellow 42 RX 9+ Yellow/Orange
18 TX 9- Green/Yellow 43 TX 9+ Yellow/Green
19 RX 10- Brown/Yellow 44 RX 10+ Yellow/Brown
20 TX 10- Gray/Yellow 45 TX 10+ Yellow/Gray
21 RX 11- Blue/Violet 46 RX 11+ Violet/Blue
22 TX 11- Orange/Violet 47 TX 11+ Violet/Orange
23 RX 12- Green/Violet 48 RX 12+ Violet/Green
24 TX 12- Brown/Violet 49 TX 12+ Violet/Brown
25 N/C Gray/Violet 50 N/C Violet/Gray

Page 2-4

REQUIREMENTS/SPECS.

FRONT PANEL INDICATORS

CLN When flashing, this red indicator
(Collision Present) indicates that a collision has occurred on one

of the segments attached to the module.

ERR (Error) When lit, this red indicator indicates that a

potential temperature problem exists inside
the MMAC.

NOTE:

There is one Link and Receive LED for each port on the module.

LNK (Link) When lit, this green LED indicates that a link

has been established between that TPMIM
port and the 10BASE-T compliant device at
the other end of the twisted pair segment.

RCV (Receive) When flashing or lit , this yellow LED indi-

cates that the TPMIM is receiving a data
packet from the segment connected to the
port.

ENVIRONMENTAL REQUIREMENTS

Operating temperature:+5° to +40° C (41° to 104° F)

Non operating temperature:-30° to +80° C (-22° to 160° F)

Operating humidity:5 to 95% (non-condensing)

Page 2-5

SAFETY

REQUIREMENTS/SPECS.

WARNING:

It is the responsibility of the person who sells the system to
which the TPMIM will be a part to ensure that the total system meets allowed
limits of conducted and radiated emissions.

Designed in accordance with UL478, UL910, NEC 725-2(b), CSA, IEC,
TUV, VDE Class A. Meets FCC part 15, Class A limits.

SERVICE

MTBF (MHBK-217E)

TPMIM-22 >192,159 hrs.
TPMIM-24 >107,736 hrs.
TPMIM-32 >195,350 hrs.
TPMIM-34 >108,062 hrs.

MTTR<0.5 hr.

PHYSICAL

Dimensions 34.04 D x 29.21 H x 5.08 W cm

(13.4 D x 11.5 H x 2.0 W in)

Weight

TPMIM-22/32 .658 kg (1.45 lbs)

TPMIM-24/34 1.09 kg (2.4 lbs)

Page 2-6

INSTALLING THE TPMIM

CHAPTER 3
INSTALLING THE TPMIM

This chapter contains instructions for installing the Cabletron Systems 10BASE­T Twisted Pair Media Interface Module (TPMIM) into any of Cabletron Systems'
MMACs. Instructions for connecting twisted pair segments to the MIM are also
included. Check that all requirements listed in Chapter 2,

ments/Specifications,

3.1 UNPACKING THE TPMIM

Before you install the TPMIM, you should visually inspect it.

To unpack the TPMIM:

are met before installing the MIM.

Installation Require-

1. Remove the shipping material covering the module in the shipping box.

2. Carefully remove the module from the shipping box. Leave the module in
its conductive bag until you are ready to install it. Save the shipping box and ma­terials in the event the unit has to be reshipped.

3. Visually inspect the module. If any damage appears to have occurred, con­tact Cabletron Systems' Technical Support immediately.

3.2 INSTALLING THE TPMIM INTO THE MMAC

The TPMIM is designed to be easily installed into any MMAC. When you install
the TPMIM, the following guidelines must be followed:

• You cannot install the TPMIM into Slot 1, which is reserved for the Repeat­er Module.

Page 3-1

INSTALLING THE TPMIM

• If installing a TPMIM-24/34, an IRM-2 or an IRBM must be installed Slot

1.

• If the module is going to be installed into an
MMAC-8™/MMAC-8FNB™/MMAC-5FNB™, be sure a Power Supply

Module (PSM-R™, or MMAC-5PSM™) is installed in the MMAC to supply
power to the module. The MMAC-3™/MMAC-3FNB™ have a built-in power
supply.

Install the TPMIM into the MMAC as follows:

1. Slide the TPMIM (2, Fig. 3-1) into the MMAC’s (1) card cage. Be sure that

the card is in the top and bottom slots (4) of the case.

Figure 3-1. Installing a Module in the MMAC

Page 3-2

INSTALLING THE TPMIM

2. Secure the module to the MMAC by turning the knurled knobs (3). Be sure
the TPMIM is firmly attached to the MMAC by turning the knurled knobs.
Failure to do so may result in improper operation.

3.3 CONNECTING THE TPMIM TO THE NETWORK

The following provides instructions for connecting twisted pair segments to the
TPMIM. The procedure varies depending on which TPMIM is installed in your
MMAC.

3.3.1 Attaching Twisted Pair Segments to the TPMIM-22/24

The TPMIM-22 has 12 RJ-45 ports, while the TPMIM-24 has 24 RJ-45 ports.
This provides easy connection of unshielded twisted pair segments to the MIM.

Each port on the module is internally crossed over. This is indicated by an X next
to the port.

To connect a twisted pair segment to the TPMIM-22/24:

1. Insert the RJ-45 connector on the twisted pair segment into an RJ-45 port on

the TPMIM.

2. At the device end of a segment, attach the segment to a 10BASE-T complaint

device.

3. Check that the Link light on the 10BASE-T Ethernet device and the LNK

LED on the TPMIM are lit. If the LEDs are not lit, perform each of the fol­lowing steps until the LEDs are lit:

a. Check that the 10BASE-T device and the MMAC are powered up.

b. Disconnect the RJ-45 connector from the RJ-45 port on the 10BASE-T
device.

c. Verify that the RJ-45 connector on the twisted pair segment has the
proper pin outs. See Figure 3-2.

d. Check the cable for continuity.

If a link has not been established, contact Cabletron Systems' Technical Support.

Page 3-3

INSTALLING THE TPMIM

Twisted Pair Segment

TPMIM-22/24

rt

Pin 1 - RX+

Pin 2 - RX-

Pin 3 - TX+

Pin 4 - N/C

Pin 5 - N/C

Pin 6 - TX-

Pin 7 - N/C

Pin 8 - N/C

10BASE-T Device

rt

Pin 8 - N/C

Pin 7 - N/C

Pin 1 - TX+

Pin 2 - TX-

Pin 3 - RX+

Pin 4 - N/C

Pin 5 - N/C

Pin 6 - RX-

If the Link LED is flashing, once a good packet passes through the port, this indi­cates that the polarity of the twisted pair segments’ receive link is reversed. If this
condition exists, the segment should be removed from the TPMIM and the wiring
corrected in the event that, in the future, the segment needs to be attached to a de­vice without the Polarity Correction and Detection feature.

RJ-45 Po

End RJ-45 Po

Figure 3-2. Cable Pinouts - TPMIM-22/24

3.3.2 Attaching Twisted Pair Segments to the TPMIM-32/34

The TPMIM-32 has a 50 pin Champ connector, while the TPMIM-34 has two 50­pin Champ connectors. This configuration of the TPMIM allows you to run a 50
pin feeder cable from the TPMIM to a punch down block. Each Champ connector
can accommodate 12 10BASE-T, twisted pair segments.

Page 3-4

INSTALLING THE TPMIM

As an aid, three tables and one figure have been included with this section. Table
3-1 describes the pins and the color codes that are used in twisted wiring from the
TPMIM-32/34 and a punch down block. Table 3-2 describes the pins and the col­or codes that are used from a punch down block to a 10BASE-T Ethernet device.
Table 3-3 gives a summary of twisted pair wiring between a TPMIM-32/34 and a
10BASE-T Ethernet device. Figure 3-3 illustrates a labeled punch down block.

To connect the TPMIM-32/34 into an existing twisted pair wiring system:

1. Connect a 50-pin feeder cable to the Champ connector on the TPMIM.

2. Attach the feeder cable to the punch down block, or patch panel. If using a
TPMIM-34, a second 50-pin feeder cable can be connected to the MIM.

In most cases, the feeder cable can be connected directly to a punch down
block by a Champ connector located on the block. If not, the punch down
block must be wired using the punch down information in Table 3-1 and Fig­ure 3-2. This table and figure describe the pins and the color codes that are
used to wire into a punch down block.

3. At the device end of a segment, attach the segment to a
10BASE-T complaint Ethernet device.

4. Check that the Link light on the 10BASE-T Ethernet device and the LNK
LED on the TPMIM are lit. If the LEDs are not lit, perform each of the fol­lowing steps until the LEDs are lit:

a. Check that the 10BASE-T device and the MMAC are powered up.

b. Verify the cabling between the module and the 10BASE-T device.

c. Check the cable for continuity.

If a link has not been established, contact Cabletron Systems' Technical Support.

Page 3-5

INSTALLING THE TPMIM

If the Link LED is flashing, once a good packet passes through the port, this indi­cates that the polarity of the twisted pair segments’ receive link is reversed. If this
condition exists, the segment should be removed from the TPMIM and the wiring
corrected in the event that, in the future, the segment needs to be attached to a de­vice without the Polarity Correction and Detection feature.

TABLE 3-1

TWISTED PAIRS WIRING

FROM A TPMIM-32/34 TO A PUNCH DOWN BLOCK

From Into and Out of 50 Into Punchdown

TPMIM-32/34Pin Feeder CableBlock

Port 12/24Pin Pin

RX+ Pin 48 48 Violet/Green RX+ A45 Violet/Green RX+
RX- Pin 23 23 Green/Violet RX- A46 Green/Violet RX­TX+ Pin 49 49 Violet/Brown TX+ A47 Violet/Brown TX+
TX- Pin 24 24 Brown/Violet TX- A48 Brown/Violet TX-

Port 11/23Pin Pin

RX+ Pin 46 46 Violet/Blue RX+ A41 Violet/Blue RX+
RX- Pin 21 21 Blue/Violet RX- A42 Blue/Violet RX­TX+ Pin 47 47 Violet/Orange TX+ A43 Violet/Orange TX+
TX- Pin 22 22 Orange/Violet TX- A44 Orange/Violet TX-

Port 10/22Pin Pin

RX+ Pin 44 44 Yellow/Brown RX+ A37 Yellow/Brown RX+
RX- Pin 19 19 Brown/Yellow RX- A38 Brown/Yellow RX­TX+ Pin 45 45 Yellow/Gray TX+ A39 Yellow/Gray TX+
TX- Pin 20 20 Gray/Yellow TX- A40 Gray/Yellow TX-

Page 3-6

INSTALLING THE TPMIM

Port 9/21 Pin Pin

RX+ Pin 42 42 Yellow/Orange RX+ A33 Yellow/Orange RX+
RX- Pin 17 17 Orange/Yellow RX- A34 Orange/Yellow RX­TX+ Pin 43 43 Yellow/Green TX+ A35 Yellow/GreenTX+
TX- Pin 18 18 Green/Yellow TX- A36 Green/Yellow TX-

Page 3-7

TABLE 3-1 (cont.)

TWISTED PAIRS WIRING

FROM A TPMIM-32/34 TO A PUNCH DOWN BLOCK

From Into and Out of 50 Into Punchdown

TPMIM-32/34Pin Feeder CableBlock

INSTALLING THE TPMIM

Port 8/20 Pin Pin

RX+ Pin 40 40 Black/Gray RX+ A29 Black/GrayRX+
RX- Pin 15 15 Gray/Black RX- A30 Gray/BlackRX­TX+ Pin 41 41 Yellow/Blue TX+ A31 Yellow/BlueTX+
TX- Pin 16 16 Blue/Yellow TX- A32 Blue/YellowTX-

Port 7/19 Pin Pin

RX+ Pin 38 38 Black/Green RX+ A25 Black/GreenRX+
RX- Pin 13 13 Green/Black RX- A26 Green/BlackRX­TX+ Pin 39 39 Black/Brown TX+ A27 Black/BrownTX+
TX- Pin 14 14 Brown/Black TX- A28 Brown/BlackTX-

Port 6/18 Pin Pin

RX+ Pin 36 36 Black/Blue RX+ A21 Black/BlueRX+
RX- Pin 11 11 Blue/Black RX- A22 Blue/BlackRX­TX+ Pin 37 37 Black/Orange TX+ A23 Black/OrangeTX+
TX- Pin 12 12 Orange/Black TX- A24 Orange/BlackTX-

Port 5/17 Pin Pin

RX+ Pin 34 34 Red/Brown RX+ A17 Red/BrownRX+
RX- Pin 9 9 Brown/Red RX- A18 Brown/RedRX­TX+ Pin 35 35 Red/Gray TX+ A19 Red/GrayTX+
TX- Pin 10 10 Gray/Red TX- A20 Gray/RedTX-

Page 3-8

INSTALLING THE TPMIM

Port 4/16 Pin Pin

RX+ Pin 32 32 Red/Orange RX+ A13 Red/OrangeRX+
RX- Pin 7 7 Orange/Red RX- A14 Orange/RedRX­TX+ Pin 33 33 Red/Green TX+ A15 Red/GreenTX+
TX- Pin 8 8 Green/Red TX- A16 Green/RedTX

Page 3-9

TABLE 3-1 (cont.)

TWISTED PAIRS WIRING

FROM A TPMIM-32/34 TO A PUNCH DOWN BLOCK

From Into and Out of 50 Into Punchdown

TPMIM-32/34Pin Feeder CableBlock

INSTALLING THE TPMIM

Port 3/15Pin Pin

RX+ Pin 30 30 White/Gray RX+ A9 White/Gray RX+
RX- Pin 5 5 Gray/White RX- A10 Gray/White RX­TX+ Pin 31 31 Red/Blue TX+ A11 Red/Blue TX+

TX- Pin 6 6 Blue/RedTX- A12 Blue/RedTX-

Port 2/14Pin Pin

RX+ Pin 28 28 White/Green RX+ A5 White/Green RX+
RX- Pin 3 3 Green/White RX- A6 Green/White RX­TX+ Pin 29 29 White/Brown TX+ A7 White/Brown TX+
TX- Pin 4 4 Brown/White TX- A8 Brown/White TX-

Port 1/13Pin Pin

RX+ Pin 26 26 White/Blue RX+ A1 White/Blue RX+
RX- Pin 1 1 Blue/White RX- A2 Blue/White RX­TX+ Pin 27 27 White/Orange TX+ A3 White/Orange TX+
TX- Pin 2 2 Orange/White TX- A4 Orange/White TX-

NOTE

: Pins 25 and 50 on champ connector are not used.

Page 3-10

TABLE 3-2

TWISTED PAIRS WIRING

FROM A PUNCH DOWN BLOCK TO A 10BASE-T DEVICE

From PunchdownTo RJ-45Into Office Into

BlockWallplate Drop 10BASE-T Device

Port 12/24PinPin Pin

INSTALLING THE TPMIM

B45 Violet/Green RX+ 1 TX+ 1 TX+ 1 TX+
B46 Green/Violet RX- 2 TX- 2 TX- 2 TX­B47 Violet/Brown TX+ 3 RX+ 3 RX+ 3 RX+
B48 Brown/Violet TX- 6 RX- 6 RX- 6 RX-

Port 11/23 Pin Pin Pin

B41 Violet/Blue RX+ 1 TX+ 1 TX+ 1 TX+
B42 Blue/Violet RX- 2 TX- 2 TX- 2 TX­B43 Violet/Orange TX+ 3 RX+ 3 RX+ 3 RX+
B44 Orange/Violet TX- 6 RX- 6 RX- 6 RX-

Port 10/22 Pin Pin Pin

B37 Yellow/Brown RX+ 1 TX+ 1 TX+ 1 TX+
B38 Brown/Yellow RX- 2 TX- 2 TX- 2 TX­B39 Yellow/Gray TX+ 3 RX+ 3 RX+ 3 RX+
B40 Gray/Yellow TX- 6 RX- 6 RX- 6 RX-

Port 9/21 Pin Pin Pin

B33 Yellow/Orange RX+ 1 TX+ 1 TX+ 1 TX+
B34 Orange/Yellow RX- 2 TX- 2 TX- 2 TX­B35 Yellow/Green TX+ 3 RX+ 3 RX+ 3 RX+
B36 Green/Yellow TX- 6 RX- 6 RX- 6 RX-

Port 8/20 Pin Pin Pin

B29 Black/Gray RX+ 1 TX+ 1 TX+ 1 TX+
B30 Gray/Black RX- 2 TX- 2 TX- 2 TX­B31 Yellow/Blue TX+ 3 RX+ 3 RX+ 3 RX+
B32 Blue/Yellow TX- 6 RX- 6 RX- 6 RX-

Page 3-11

INSTALLING THE TPMIM

TABLE 3-2 (cont.)

TWISTED PAIRS WIRING

FROM A PUNCH DOWN BLOCK TO A 10BASE-T DEVICE

From PunchdownTo RJ-45Into Office Into

BlockWallplate Drop 10BASE-T Device

Port 7/19 Pin Pin Pin

B25 Black/Green RX+ 1 TX+ 1 TX+ 1 TX+
B26 Green/Black RX- 2 TX- 2 TX- 2 TX­B27 Black/Brown TX+ 3 RX+ 3 RX+ 3 RX+
B28 Brown/Black TX- 6 RX- 6 RX- 6 RX-

Port 6/18 Pin Pin Pin

B21 Black/Blue RX+ 1 TX+ 1 TX+ 1 TX+
B22 Blue/Black RX- 2 TX- 2 TX- 2 TX­B23 Black/Orange TX+ 3 RX+ 3 RX+ 3 RX+
B24 Orange/Black TX- 6 RX- 6 RX- 6 RX-

Port 5/17 Pin Pin Pin

B17 Red/Brown RX+ 1 TX+ 1 TX+ 1 TX+
B18 Brown/Red RX- 2 TX- 2 TX- 2 TX­B19 Red/Gray TX+ 3 RX+ 3 RX+ 3 RX+
B20 Gray/Red TX- 6 RX- 6 RX- 6 RX-

Port 4/16 Pin Pin Pin

B13 Red/Orange RX+ 1 TX+ 1 TX+ 1 TX+
B14 Orange/Red RX- 2 TX- 2 TX- 2 TX­B15 Red/Green TX+ 3 RX+ 3 RX+ 2 TX­B16 Green/Red TX- 6 RX- 6 RX- 6 RX-

Page 3-12

INSTALLING THE TPMIM

TABLE 3-2 (cont.)

TWISTED PAIRS WIRING

FROM A PUNCH DOWN BLOCK TO A 10BASE-T DEVICE

From PunchdownTo RJ-45Into Office Into

BlockWallplate Drop 10BASE-T Device

Port 3/15 Pin Pin Pin

B9 White/Gray RX+ 1 TX+ 1 TX+ 1 TX+
B10 Gray/White RX- 2 TX- 2 TX- 2 TX­B11 Red/Blue TX+ 3 RX+ 3 RX+ 3 RX+
B12 Blue/Red TX- 6 RX- 6 RX- 6 RX-

Port 2/14 Pin Pin Pin

B5 White/Green RX+ 1 TX+ 1 TX+ 1 TX+
B6 Green/White RX- 2 TX- 2 TX- 2 TX­B7 White/Brown TX+ 3 RX+ 3 RX+ 3 RX+
B8 Brown/White TX- 6 RX- 6 RX- 6 RX-

Port 1/13 Pin Pin Pin

B1 White/Blue RX+ 1 TX+ 1 TX+ 1 TX+
B2 Blue/White RX- 2 TX- 2 TX- 2 TX­B3 White/Orange TX+ 3 RX+ 3 RX+ 3 RX+
B4 Orange/White TX- 6 RX- 6 RX- 6 RX-

Page 3-13

INSTALLING THE TPMIM

TABLE 3-3

TWISTED PAIR WIRING SUMMARY

TPMIM 32/34Punch DownWall Plate 10BASE-T

ChampBlock (If Required) Ethernet

Device

Page 3-14

INSTALLING THE TPMIM

Port 12
4

2
4

2

P
4

2
4

2
:

:
:

:
:

:
:
:

:
:

:
P

2
1

2
2

A45 RX+
A

-

A

+

A

-

A

+

A

-

A

+

A

-

:
:

:
:
:

:
:
:

:
:

:

A
A

A
A

PIN 1 TX+
P

X-

P

X+

P

X+

P

X+

P

X-

P

X+

P

X-

:
:

:
:
:

:
:
:

:
:

:

P

X+

P

X-

P

X+

P

X-

PIN 1 TX+
P

X-

P

X+

P

X+

P

X+

P

X-

P

X+

P

X-

:
:

:
:
:

:
:
:

:
:

:

P

X+

P

X-

P

X+

P

X-

{

25 Pin

F

der
ble

{

25 Pin

F

der
ble

{

in

F

der
ble

{

d
ion

{

d
ion

{

4 Pair

d
ion

{

Office

rop

{

Office

rop

{

Office

rop

8 RX+
3 RX-

9 TX+
4 TX-

ort 11

6 RX+
1 RX-

7 TX+
2 TX-

ee

Ca

ee

Ca

{

{

46 RX
47 TX

48 TX

41 RX
42 RX

43 TX
44 TX

4 Pair

Twiste

Distribut

Cable

4 Pair

Twiste

Distribut

Cable

{

IN 2 T
IN 3 R

IN 6 R

IN 1 T

{

IN 2 T
IN 3 R

IN 6 R

{

IN 2 T

D

IN 3 R
IN 6 R

IN 1 T

{

IN 2 T

D

IN 3 R
IN 6 R

ort 1

6 RX+
RX-

7 TX+
TX-

25 P

ee

Ca

{

1 RX+
2 RX-

3 TX+
4 TX-

Twiste

Distribut

Cable

IN 1 T

{

IN 2 T
IN 3 R

IN 6 R

IN 1 T

{

IN 2 T

D

IN 3 R
IN 6 R

Page 3-15

1
2
3
4
5
6

7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

43

INSTALLING THE TPMIM

A B C D

Page 3-17

TESTING AND LANVIEW

CHAPTER 4
TESTING AND LANVIEW

This section contains procedures to ensure that the connection between the TP­MIM and the 10BASE-T Ethernet device is functioning properly. A description
of LANVIEW and its function in troubleshooting physical layer network prob­lems is also provided.

4.1 INSTALLATION CHECK-OUT

You should test the TPMIM after installation to ensure that the physical layer of
the network is operating properly. Two Ethernet node testers that generate valid
data packets, such as Cabletron Systems' LAN-MD, are required for this proce­dure. Figure 4-1 illustrates a sample installation check-out configuration.

1. Connect a 10BASE-T twisted pair transceiver, such as a Cabletron Systems

TPT (3, Fig. 4-1), to the device end of the twisted pair segment connected to
applicable port on the TPMIM in an MMAC (5).

2. Connect an AUI cable (2) to the TPT.

3. Connect a LAN-MD (1) to the AUI cable connected to the TPT.

4. Select and run test

5. Verify that the the Test Status

000

or

001

. If these two conditions are met, the
LAN-MD is now the
with another LAN-MD.

6 - SERVER

PASS

SERVER

.

LED is lit and that the Status Code reads

unit and will act as a packet echoer when used

Page 4-1

TESTING AND LANVIEW

1

2

3

5

6

4

7

8

9

1. LAN-MD 6. Twisted Pair
Segment

2. AUI Cable 7. TPT

3. TPT 8. AUI Cable

4. Twisted Pair Segment 9. LAN-MD

5. MMAC-8

Figure 4-1. Sample Installation Check-Out Configuration

6. Using another transceiver (7) and AUI cable (8), connect another LAN-MD
(9) to any other tested segment that is connected to an MMAC.

7. Select and run test

4 - NODE

on the LAN-MD connected in step 6.

8. Verify that this test passes. At least 100 packets should be sent and received
with no errors. The packets will be received from and sent back to the LAN­MD acting as the

NODE

.

When these tests have been successfully completed for each connection to the TP­MIM, the MIM is ready for normal operation. If you note any failures, please con­tact Cabletron Systems’ Technical Support.

Page 4-2

TESTING AND LANVIEW

4.2 USING LANVIEW

The TPMIM uses Cabletron Systems built-in visual diagnostic and status moni­toring system, LANVIEW. Using LANVIEW LEDs, your network troubleshoot­ing personnel can quickly scan the LEDs to observe network status or diagnose
network problems, and determine which node or segment is faulty.

The following section discusses the function and the purpose of each LANVIEW
LED on the TPMIM. You should note that there is one Link OK (
Receive (

RCV

) LED for each port on the TPMIM.

LNK

) and one

COLLISION DETECT (CLN)

This red indicator flashes to indicate that a collision has occurred on one of the
segments attached TPMIM. The frequency of flashes may increase as the network
activity increases, since more collisions are likely to occur. The flash of the LED
is pulse-stretched for viewing effect.

ERROR (ERR)

When lit, this red indicator indicates that a potential temperature problem exists
inside the MMAC. If the temperature inside the MMAC remains above the rec­ommended temperature, failures may occur in network traffic.

Page 4-3

TESTING AND LANVIEW

LINK OK (LNK)

When lit, this green LED indicates that a link has been established between the
TPMIM and the 10BASE-T device at the other end of the twisted pair segment.
This LED remains lit as long as the link is maintained.

If no data has been sent for 16 msec, a positive link test pulse of
100 nsec is sent onto the transmit link of the twisted pair cable. The link pulses
are received by the TPMIM and checked to determine if the pulse is occurring at
the correct rate, polarity and pulse shape. If no pulses are received or the pulses
are not correct, the MIM will enter the Link Fail State, and the LED will not be lit.
The MIM will not receive or transmit data until the link is restored by receiving a
correct link test pulse or a valid packet.

If the LED is flashing, once a good packet passes through the port, this indicates
that the polarity of the twisted pair segments’ receive link is reversed. Each port
on the TPMIM incorporates a Polarity Detection and Correction feature that al­lows the TPMIM to pass data regardless of the polarity of the twisted pair seg­ments’ receive link.

RECEIVE (RCV)

This yellow LED flashes on and off to indicate that the port is receiving a data
packet from the segment attached to it. The frequency of flashes may increase as
the network activity increases. The flashes are pulse-stretched for viewing effect.

Page 4-4