Cabletron Systems EMC39-12 User Manual

EMC39-12

12 PORT ETHERNET MEDIA CONVERTER

USER’S GUIDE

EMC39-12 Ethernet Media Converter WITH LANVIEW

TPLINK

XMT
RCV

PWR

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

87

6543

TX

21

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 1996 by Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005
All Rights Reserved
Printed in the United States of America

Order Number: 9031854 January 1996

SPECTRUM, LANVIEW, MicroMMAC
Manager, EPIM, EPIM-A, EPIM-F1, EPIM-F2, EPIM-F3, EPIM-T, EPIM-X, FOT-F, FOT-F3
HubSTACK, SEH, SEHI

All other product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies.

, and

TMS-3

Printed on Recycled Paper

, and

BRIM

are registered trademarks and

are trademarks of Cabletron Systems, Inc.

Element

,

EMC39-12 User’s Guide iii

Notice

FCC NOTICE

This device complies with Part 15 of the 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.

NOTE:

This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable
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 to correct the interference at his own expense.

WARNING:

party responsible for compliance could void the user’s authority to operate the equipment.

Changes or modifications made to this device which are not e xpressly appro v ed by the

DOC NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada.

VCCI NOTICE

This equipment is in the 1st Class Category (information equipment to be used in commercial and/or
industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference
by Information T echnology Equipment (VCCI) aimed at preventing radio interference in commercial
and/or industrial areas.

Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be
caused to radios and TV receivers, etc.

Read the instructions for correct handling.

iv EMC39-12 User’s Guide

Notice

CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT

IMPORTANT:

This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”)
that sets forth your rights and obligations with respect to the Cabletron software program (the
“Program”) contained in this package. The Program may be contained in firmware, chips or other
media. BY UTILIZING THE ENCLOSED PRODUCT, YOU ARE AGREEING TO BECOME
BOUND BY THE TERMS OF THIS AGREEMENT, WHICH INCLUDES THE LICENSE AND
THE LIMITATION OF WARRANTY AND DISCLAIMER OF LIABILITY. IF YOU DO NOT
AGREE TO THE TERMS OF THIS AGREEMENT , PR OMPTLY RETURN THE UNUSED
PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND.

Before utilizing this product, carefully read this License Agreement.

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE
package subject to the terms and conditions of this License Agreement.

You may not copy, reproduce or transmit any part of the Program except as permitted by the
Copyright Act of the United States or as authorized in writing by Cabletron.

2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or disassemble the
Program.

3. APPLICABLE LA W. This License Agreement shall be interpreted and governed under the laws
and in the state and federal courts of New Hampshire. You accept the personal jurisdiction and
venue of the New Hampshire courts.

. You have the right to use only the one (1) copy of the Program provided in this

EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY

1. EXCLUSION OF
writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including
its documentation and media).

CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN THOSE SUPPLIED TO
YOU BY CABLETRON IN WRITING, EITHER EXPRESSED OR IMPLIED, INCLUDING
BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PROGRAM, THE
ACCOMP ANYING WRITTEN MA TERIALS, AND ANY A CCOMP ANYING HARDWARE.

2. NO LIABILITY FOR CONSEQUENTIAL DAMAGES. IN NO EVENT SHALL
CABLETRON OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER
(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS,
PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, SPECIAL,
INCIDENTAL, CONSEQUENTIAL, OR RELIANCE DAMAGES, OR OTHER LOSS)
ARISING OUT OF THE USE OR INABILITY TO USE THIS CABLETRON PRODUCT,
EVEN IF CABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR
LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR
ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME
INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO
YOU.

WARRANTY. Except as may be specifically provided by Cabletron in

EMC39-12 User’s Guide v

Notice

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer
software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the
Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects
is proprietary data belonging to Cabletron and/or its suppliers.

For Department of Defense units, the product is licensed with “Restricted Rights” as defined in the
DoD Supplement to the Federal Acquisition Regulations, Section 52.227-7013 (c) (1) (ii) and its
successors, and use, duplication, disclosure by the Government is subject to restrictions as set forth in
subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at

252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505.

vi EMC39-12 User’s Guide

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION

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

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

1.3 EMC39-12 Overview ...................................................................1-2

1.4 EMC39-12 Features....................................................................1-3

1.5 EMC39-12 Specifications............................................................1-4

CHAPTER 2 INSTALLATION

2.1 Unpacking the EMC39-12............................................................2-1

2.2 Installing the EMC39-12 .............................................................. 2-1

2.2.1 Rack Mounting the EMC39-12........................................ 2-2

2.2.2 Free-Standing Shelf or Tabletop Installation ..................2-3

2.3 Connecting The EMC39-12 to the Power Source........................ 2-4

CHAPTER 3 CONNECTING TO THE NETWORK

3.1 Connecting a Twisted Pair Segment

To The EMC39-12....................................................................... 3-1

3.2 Connecting a Fiber Optic Link Segment......................................3-2

3.3 Finishing The Installation.............................................................3-4

CHAPTER 4 USING THE LANVIEW LEDs

4.1 PWR (Power)...............................................................................4-1

4.2 XMT (Transmit)............................................................................4-1

4.3 RCV (Receive).............................................................................4-2

4.4 TPLNK (Twisted Pair Link)..........................................................4-2

4.5 FOLNK (Fiber Optic Link)............................................................ 4-2

APPENDIX A CABLE REQUIREMENTS

A.1 10BASE-T Twisted Pair Requirements .......................................A-1

A.2 10BASE-FL Single Mode Fiber Requirements............................A-1

APPENDIX B TWISTED PAIR WIRING TABLES

B.1 Twisted Pair Wiring From an EMC39-12 To a

Punch Down Block ......................................................................B-2

B.2 Twisted Pair Wiring From a Punch Down

Block to a 10BASE-T Device.......................................................B-4

EMC39-12 User’s Guide v

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems
manual explains installation instructions and provides specifications for
the twelve port Ethernet Media Converter (EMC).

EMC39-12 User’s Guide

. This

1.1 USING THIS MANUAL

Read through this manual to gain an understanding of the features and
capabilities of the EMC39-12. You should have a general working
knowledge of Ethernet IEEE 802.3 10BASE-T, and Ethernet IEEE 802.3j
10BASE-FL type data communications networks and their physical layer
components when installing the EMC39-12.

Chapter 1,
specifications.

Chapter 2,
19-inch rack or as a standalone device.

Chapter 3,
segments to the EMC39-12.

Chapter 4,
EMC39-12 LEDs to monitor link and power status.

Appendix A,
cable requirements for the EMC39-12.

Introduction

Installation

Connecting to the Network

Using the LANVIEW LEDs

Cable Requirements

, describes EMC39-12 features and

, describes how to install the EMC39-12 into a

, explains how to connect network

, describes how to use the

lists twisted pair and single mode

Appendix B,
twisted pair connector.

EMC39-12 User’s Guide Page 1-1

T wisted Pair Wiring Tables

, lists pinouts for the 50-pin

Chapter 1:

Introduction

1.2 GETTING HELP

If you need additional support related to the EMC39-12, or if you have
any questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:

By phone [phone]

A.M

Monday-Friday; 8

. – 8 P.M. Eastern Time
By CompuServe GO CTRON from any ! prompt
By Internet mail [e-mail]
By FTP ctron.com (134.141.197.25)

Login
Password

anonymous
your email address

1.3 EMC39-12 OVERVIEW

The EMC39-12 converts Ethernet IEEE 802.3 10BASE-T signals to
Ethernet IEEE 802.3j 10BASE-FL signals. The rear panel has a 50-pin
Champ connector (RJ71) that supports twelve twisted pair segments. The
front panel has twelve 10BASE-FL single mode ST ports. Figure 1-1
shows the EMC39-12 ports. The 10BASE-FL connectors are backward
compatible with FOIRL connectors.

Each of the rear panel twisted pair ports has a corresponding fiber port.
For example: Twisted pair Port 1 converts signals to fiber optic port 1,
twisted pair port 2 converts signals to fiber optic port 2, etc.

Front View

EMC39-12

TPLINK

XMT
RCV

PWR

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

EMC39-12

Ethernet Media Converter

Page 1-2 EMC39-12 User’s Guide

Ethernet Media Converter WITH LANVIEW

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

12X 1X

Rear View

87

6543

Figure 1-1 The EMC39-12

TX

21

EMC39-12 Features

1.4 EMC39-12 FEATURES

The EMC39-12 Ethernet Media Converter pro vides connecti vity for up to
twelve singlemode fiber optic connections. The network connection is
made through a 50-pin connector on the rear of the unit.

The EMC39-12 supports the following:

• Automatic Transmit Port Disable

• Full Duplex Ethernet Support

• LANVIEW Diagnostic LEDs

• Connectivity

The following sections discuss these features.

1.4.1 Automatic Transmit Port Disable

The EMC39-12 automatically disables the Transmit port when its
corresponding Receive port does not have a link.

1.4.2 Full Duplex Ethernet Support

All of the EMC39-12 ports support Full Duplex Ethernet provided that
the device at the other end of the port supports Full Duplex Ethernet also.
Full Duplex Ethernet allows the EMC39-12 to transmit and receive
signals simultaneously for a 20 Megabit bandwidth through-put.

1.4.3 LANVIEW Diagnostic LEDs

Cabletron Systems equips the EMC39-12 with a visual diagnostic and
monitoring system called LANVIEW . LANVIEW LEDs help you quickly
identify Power and Link status. Chapter 4 describes the LEDs in detail.

1.4.4 Connectivity

The rear panel of the EMC39-12 has a 50-pin Champ connector (RJ71)
that supports twelve twisted pair segments. The front panel has twelve
10BASE-FL single mode ST ports. Each single mode ST port has a
Receive connector and a Transmit connector.

EMC39-12 User’s Guide Page 1-3

Chapter 1:

Introduction

1.5 EMC39-12 SPECIFICATIONS

This section describes operating specifications for the EMC39-12.
Cabletron Systems reserves the right to change these specifications at any
time without notice.

1.5.1 Physical Specifications

Dimensions: 17" L x 9.4" W x 1.7" H
Weight: 4 lbs.

1.5.2 Power Requirements

Input:

100 to 125 Volts
200 to 240 Volts ac, 0.5A
50 to 60 Hz

ac

, 1.0A

1.5.3 Environmental Requirements

Operating T emperature: 5° to 40°C (41° to 104°F)
Non-operating T emperature: -30
Operating Humidity: 5% to 95% (non-condensing)

°

to 90°C (-22° to 194°F)

1.5.4 Safety and Approvals

This unit meets the safety requirements of UL 1950, CSA C22.2 NO 950,
and EN 60950; the EMI requirements of FCC Class A and EN 55022
Class A, VCCI Class I; and the EMC requirements of EN 50082-1.

Page 1-4 EMC39-12 User’s Guide

CHAPTER 2

INSTALLATION

This chapter explains how to install the EMC39-12 in a 19-inch rack and
also provides requirements for installing the EMC39-12 on a tabletop or
shelf.

2.1 UNPACKING THE EMC39-12

Unpack the EMC39-12 as follows:

1. Remove the shipping box material covering the EMC39-12.

2. Carefully remove the EMC39-12 from the shipping box.

3. Remove the EMC39-12 from its non-conductive bag. If you notice any
signs of damage, contact Cabletron Systems Technical Support
immediately.

2.2 INSTALLING THE EMC39-12

Do not remove the cover from the EMC39-12. There are no
user configurable devices inside and the electronics are static

!

CAUTION

You can install the EMC39-12 in a 19-inch rack or place it on any
horizontal surface (e.g. a table or shelf). Cabletron Systems provides an
accessory kit with the EMC39-12 that includes Rackmount Brackets and
Mounting Screws.

The following sections provide instructions for installing the EMC39-12.
Select one of the following subsections and perform the steps that are
applicable to your installation needs.

EMC39-12 User’s Guide Page 2-1

sensitive.

Chapter 2:

Installation

2.2.1 Rack Mounting the EMC39-12

Before installing the EMC39-12, care must be taken to ensure that the
rack used will support the unit and that the rack remains stable with the
EMC39-12 installed. In order to allow for proper cooling within the rack,
there must be a two-inch clearance on either side of the unit. Refer to
Chapter 1,

Introduction

The following procedures explain how to install the EMC39-12 in a
19-inch rack.

1. Remove four cover screws (two from each side) located along the
front edges of each side of the EMC39-12. Figure 2-1 shows the
location of the screws.

Do not remove the cover from the EMC39-12. There are no
user configurable devices inside and the electronics are
static sensitive.

2. Using the four cover screws removed in step 1, attach the rack
mounting brackets to each end of the EMC39-12.

for power and environmental requirements.

Rack Mounting

Brackets (2)

EMC39-12

PWR

TPLINK

XMT
RCV

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

Ethernet Media Converter

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

12 10 9

WITH

LANVIEW

11

87

6543

TX

21

Screws (4)

Figure 2-1 Installing the Rackmount Brackets

Page 2-2 EMC39-12 User’s Guide

Installing The EMC39-12

3. With the rack mounting brackets installed, position the EMC39-12

between the vertical frame members of the 19-inch rack and fasten it
securely with the mounting screws as shown in Figure 2-2.

19-Inch Rack

EMC39-12

PWR

TPLINK

XMT
RCV

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

Ethernet Media Converter

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

WITH

LANVIEW

87

6543

TX

21

Screws (4)

Figure 2-2 Installing the EMC39-12 in a 19-Inch Rack

2.2.2 Free-Standing Shelf or Tabletop Installation

Figure 2-3 shows the surface requirements for installing the EMC39-12
on a shelf or tabletop. Shelving units must support 30 pounds of static
weight. Before you install the EMC39-12, ensure the power source and
environmental conditions meet the requirements specified in Chapter 1,

Introduction

.

21 IN.

WITH

LANVIEW

87

6543

2

TX

1

6 IN.

18 IN.

PWR

TPLINK

XMT
RCV

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

EMC39-12

Ethernet Media Converter

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

121110 9

7 FT.

Figure 2-3 Shelf or Tabletop Installation

EMC39-12 User’s Guide Page 2-3

Chapter 2:

Installation

2.3 CONNECTING THE EMC39-12 TO THE POWER

SOURCE

The EMC39-12 has a universal power supply. This allows you to

NOTE

To connect the EMC39-12 to the power source:

1. Plug the power cord into the back panel of the EMC39-12.

2. Plug the other end of the power cord into a grounded wall outlet.

connect the EMC39-12 to power sources from 100 Vac to 125 Vac,
50-60 Hz or 200 Vac to 240 Vac, 50-60 Hz

3. Verify that the
receiving power.

PWR

LED

is on; this indicates that the EMC39-12 is

Page 2-4 EMC39-12 User’s Guide

CHAPTER 3

CONNECTING T O THE NETWORK

This chapter outlines the procedure for connecting the EMC39-12 to your
network.

3.1 CONNECTING A TWISTED PAIR SEGMENT

T O THE EMC39-12

The rear panel of the EMC39-12 has a 50-pin Champ connector. The
configuration outlined in this section explains how to attach a twisted pair
cable to the EMC39-12 and to a 10BASE-T compliant Ethernet device
that has a 50-pin Champ connector (e.g. Cabletron Systems’ ELM or
TPRMIM).

You can also run a 50-pin feeder cable from the EMC39-12 to a punch
down block. The Champ connector supports twelve 10BASE-T, twisted
pair segments.

NOTE

EMC39-12 User’s Guide Page 3-1

Refer to Appendix B for information about wiring the
EMC39-12 to a punch down block.

Chapter 3: Connecting To The Network

To connect the EMC39-12 to a 10BASE-T compliant Ethernet device:

1. Attach a 50-pin feeder cable to the Champ connector on the
EMC39-12 as shown in Figure 3-1.

EMC39-12

Ethernet Media Converter

WITH

LANVIEW

12X 1X

Figure 3-1 EMC39-12

2. Attach the other end of the 50-pin feeder cable to the Champ connector
on the 10BASE-T compliant Ethernet device.

3. Check that the link LED on the 10BASE-T ethernet device and the
applicable TPLNK LED on the EMC39-12 are on. If the LEDs are not
on, perform each of the following steps until the LEDs are on:

a. Check that the 10BASE-T device and the EMC39-12 have po wer.
b. Verify the cabling between the EMC39-12 and the 10BASE-T

device.

c. Check the cable for continuity.

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

Page 3-2 EMC39-12 User’s Guide

Connecting A Fiber Optic Link Segment

3.2 CONNECTING A FIBER OPTIC LINK SEGMENT

When connecting a fiber optic link segment to the EMC39-12 keep the
following in mind:

• ST connectors attach to ST ports much like BNC connectors
attach to BNC ports. Insert the connector into the port with the
alignment key on the connector inserted into the alignment slot on
the port. The connector is then turned to lock it down.

• The physical communication link consists of two strands of fiber
optic cabling: the Transmit (TX) and the Receive (RX). The
transmit strand from the applicable port on the module will be
connected to the Receive port of a fiber optic Ethernet de vice at the
other end of the segment. For example, TX of the applicable port
on the module will go to RX of the other fiber optic device. The
Receive strand of the applicable port on the module will be
connected to the Transmit port of the fiber optic Ethernet device.
For example, RX of the applicable port on the module will go to
TX of the other fiber optic device.

We recommend that you label the fiber optic cable to indicate which
fiber is Receive and which is Transmit. When you buy fiber optic
cable from Cabletron Systems, it is labeled so that at one end of the
cable, one fiber is labeled 1, and the other fiber is labeled 2. This
pattern is repeated at the other end of the cable. If you did not purchase
your cable from Cabletron Systems, be sure you label your cable as
described above.

Do not touch the ends of the fiber optic strands, and do not let
the ends come in contact with dust, dirt, or other contaminants.

!

CAUTION

EMC39-12 User’s Guide Page 3-3

Contamination of the ends can cause problems in data
transmissions. If the ends become contaminated, clean them
with alcohol using a soft, clean, lint free cloth.

Chapter 3: Connecting To The Network

To connect a fiber optic link segment to the EMC39-12, perform the
following steps:

1. Remove the protective plastic covers from the fiber optic ports on the
applicable port on the module and from the ends of the connectors on
each fiber strand.

2. Attach the fiber labeled 1 to the applicable Receive port, labeled RX,
on the module. See Figure 3-2.

EMC39-12 Ethernet Media Converter WITH LANVIEW

TPLINK

XMT
RCV

PWR

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

87

6543

TX

21

Figure 3-2 Connecting a Fiber Link to the EMC39-12

3. Attach the fiber labeled 2 to the applicable Transmit port labeled TX,
on the module.

4. At the other end of the fiber optic cable, attach the fiber labeled 1 to
the Transmit port of the device.

5. Attach the fiber labeled 2 to the Receive port.

6. Check that the FOLNK LED on the ECM39-12 is on. If the LED is
not on, perform the following steps until it is:

a. Check that the power is turned on for the device at the other end of

the link.

b. Verify proper “receive to transmit” connection of fiber strands

between the applicable port on the module and the fiber optic
device at the other end of the fiber optic link segment.

c. Verify that the fiber connection meets the dB loss specifications

outlined in Appendix A.

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

Page 3-4 EMC39-12 User’s Guide

Finishing The Installation

3.3 FINISHING THE INSTALLATION

The EMC39-12 is now ready for operation. Before placing the network
into service, test the installation thoroughly, making sure that you can
address all stations and that the EMC39-12 and all stations are indicating
normal operation. Ensure that the networking software is configured
properly to match the installed network. If you encounter errors or
abnormal operation, contact Cabletron Systems Technical Support.

EMC39-12 User’s Guide Page 3-5

CHAPTER 4

USING THE LANVIEW LED

S

This chapter describes how to use the LANVIEW Diagnostic LEDs to
monitor EMC39-12 status and diagnose problems.

EMC39-12

TPLINK

XMT
RCV

PWR

4.1 PWR (Power)

• On (Green) - Indicates that the EMC39-12 is receiving power.

FOLNK

12 11 10 9 8 7 6 5 4 3 2 1

Figure 4-1 LANVIEW LEDs

• Off - Indicates that the unit is not receiving power . Check the input

power source (circuit breakers, fuse, power cord, etc.). If the
proper source is present, the problem could be with the unit.

4.2 XMT (Transmit)

• On (Flashing Green) - Indicates that the unit is transmitting data

packets from the twisted pair port to the fiber optic port. The flash
of the LED is pulse stretched for viewing effect. The LED could
be on solid because of this viewing effect.

• Off - No activity

EMC39-12 User’s Guide Page 4-1

Chapter 4: Using The Lanview LEDs

4.3 RCV (Receive)

• On (Flashing Yellow) - Indicates that the unit is receiving data

packets from the associated fiber optic port and transmitting them
to the twisted pair port. The flash of the LED is pulse stretched for
viewing effect. The LED may be on, but appear not to flash
because of the pulse stretched viewing effect.

• Off - No activity

4.4 TPLNK (Twisted Pair Link)

• On (Green) - Indicates an established link between the associated

twisted pair segment and the 10BASE-T de vice at the other end of
the segment. The LED will remain on as long as there is a link
between the devices and power is supplied to each linked device.

• Off - No link

4.5 FOLNK (Fiber Optic Link)

• On (Green) - Indicates an established link between the associated

fiber segment and the 10BASE-FL device at the other end of the
segment. The LED will remain on as long as there is a link
between the devices and power is supplied to each linked device.

• Off - No link

Page 4-2 EMC39-12 User’s Guide

APPENDIX A

CABLE REQUIREMENTS

This appendix provides cable requirements for each of the EMC39-12
ports.

A.1 10BASE-T TWISTED PAIR REQUIREMENTS

When you connect a 10BASE-T twisted pair segment to the EMC39-12,
the device at the other end of the twisted pair segment must meet IEEE

802.3 10BASE-T specifications. Your 10BASE-T twisted pair segment
must meet the following requirements.

Segment Length

The IEEE 802.3 10BASE-T standard requires that 10BASE-T devices
must be able to transmit from 0 to at least 100 meters (328 feet) per
segment of 24-gauge unshielded twisted pair (UTP) cable.

Insertion Loss

The maximum insertion loss allowed for a 10BASE-T segment is 11.5 db
at all frequencies between 5.0 and 10.0 MHz. This includes the
attenuation of the cable, connectors, and patch panel.

Impedance

10BASE-T specifies cable impedance between 85 and 110 ohms.

A.2 SINGLE MODE FIBER OPTIC NETWORK

When connecting a single mode fiber optic link segment to a hub, ensure
the network meets the following requirements:

Cable T ype

Fiber optic link segments should consist of 8/125 to 12/125 µm single
mode fiber optic cabling. You can also use 62.5/125 µm multimode cable
however, multimode cable allows for greater optical loss, and limits the
possible distance to 2 km.

EMC39-12 User’s Guide Page A-1

Appendix A: Cable Requirements

Attenuation

You must test the fiber optic cable with a fiber optic attenuation test set
adjusted for a 1300 nm wavelength. This test verifies that the signal loss
in a cable falls within the acceptable level of 10.0 dB or less for an y gi v en
single mode fiber optic link.

Budget and Propagation Delay

When you determine a maximum fiber optic cable length, you must
calculate and consider the fiber optic budget (a total loss of 10.0 dB or
less between stations) and total network propagation delay.

To determine the fiber optic budget, combine the optical loss due to the
fiber optic cable, in-line splices, and fiber optic connectors. Typical loss
for a splice and connector (together) equals 1 dB or less.

Network propagation delay is the amount of time it takes a packet to
travel from the sending device to the receiving device. Total propagation
delay for the entire network must not exceed 25.6 µs in one direction
(51.2 µs round trip). If the total propagation delay exceeds 25.6 µs, you
must use bridges or switches to re-time the signal.

Length

If you meet all system budgets, the fiber optic ports will drive the signal a
minimum distance of 5 km and comply with the IEEE 802.3 10BASE-FL
specification.

Page A-2 EMC39-12 User’s Guide

APPENDIX B

TWISTED PAIR WIRING TABLES

This appendix contains twisted pair wiring tables which will assist you if
you are using a Punch Down Block (see Figure B-1) to wire your twisted
pair segments. The following tables are included in this appendix:

• Table B-1 Twisted Pair Wiring from an EMC39-12 to a Punch
Down Block

• Table B-2 Twisted Pair Wiring from a Punch Down Block to a
10Base-T Device

B.1 TWISTED PAIR WIRING FROM AN EMC39-12 TO A

PUNCH DOWN BLOCK

NOTE

Pins 25 and 50 on the Champ connector are not used.

.

From
EMC39-12

Port 12

Pin Pin Pin

TX+ 48 48 Violet/GreenTX+ A45 Violet/Green TX+
TX-23 23 Green/VioletTX- A46 Green/Violet TX­RX+49 49 Violet/BrownRX+ A47 Violet/Brown RX+
RX-24 24 Brown/VioletRX- A48 Brown/Violet RX-

Port 11

Pin Pin Pin

TX+46 46 Violet/BlueTX+ A41 Violet/Blue TX+

Table B-1 EMC39-12 to a Punch Down Block

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

EMC39-12 User’s Guide Page B-1

Appendix B: Twisted Pair Wiring Tables

Table B-1 EMC39-12 to a Punch Down Block (Continued)

From
EMC39-12

TX-21 21 Blue/VioletTX- A42 Blue/Violet TX­RX+47 47 Violet/OrangeRX+ A43 Violet/Orange RX+
RX-22 22 Orange/VioletRX- A44 Orange/Violet RX-

Port 10

Pin Pin Pin

TX+44 44 Yellow/Brown TX+ A37 Yellow/Brown TX+
TX-19 19 Brown/Y ellow TX- A38 Brown/Yellow TX­RX+45 45 Yellow/Gray RX+ A39Yellow/Gray RX+
RX-20 20 Gray/Yellow RX- A40 Gray/Yellow RX-

Port 9

Pin Pin Pin

TX+42 42 Yellow/Orange TX+ A33Yellow/Orange TX+
TX-17 17 Orange/Y ellow TX- A34 Orange/Yellow TX­RX+43 43 Yellow/Green RX+ A35 Yellow/Green RX+

RX-18 18 Green/Yellow RX-

Port 8

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

A36 Green/Yellow RX-

Pin Pin Pin

TX+40 40 Black/GrayTX+ A29 Black/GrayTX+
TX-15 15 Gray/BlackTX- A30 Gray/BlackTX­RX+41 41 Yellow/Blue RX+ A31Yellow/BlueRX+
RX-16 16 Blue/YellowRX- A32Blue/YellowRX-

Port 7

Pin Pin Pin

TX+38 38 Black/GreenTX+ A25Black/GreenTX+
TX-13 13 Green/BlackTX- A26 Green/BlackTX­RX+39 39 Black/BrownRX+ A27 Black/BrownRX+
RX-14 14 Brown/BlackRX- A28 Brown/BlackRX-

Page B-2 EMC39-12 User’s Guide

Twisted Pair Wiring From An EMC39-12 To a Punch Down Block

Table B-1 EMC39-12 to a Punch Down Block (Continued)

From
EMC39-12

Port 6

Pin Pin Pin

TX+36 36 Black/BlueTX+ A21 Black/BlueTX+
TX-11 11 Blue/Black TX- A22 Blue/BlackTX­RX+37 37 Black/OrangeRX+ A23 Black/OrangeRX+
RX-12 12 Orange/BlackRX- A24 Orange/BlackRX-

Port 5

Pin Pin Pin

TX+34 34 Red/BrownTX+ A17 Red/BrownTX+
TX-9 9 Brown/RedTX- A18Brown/RedTX­RX+35 35 Red/GrayRX+ A19 Red/GrayRX+

RX-10 10 Gray/RedRX-

Port 4

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

A20 Gray/RedRX-

Pin Pin Pin

TX+32 32 Red/OrangeTX+ A13 Red/OrangeTX+
TX-7 7 Orange/RedTX- A14Orange/RedTX­RX+33 33 Red/GreenRX+ A15 Red/GreenRX+
RX-8 8 Green/RedRX- A16Green/RedRX

Port 3

Pin Pin Pin

TX+30 30 White/GrayTX+ A9 White/Gray TX+
TX-5 5 Gray/WhiteTX- A10Gray/WhiteTX­RX+31 31 Red/BlueRX+ A11 Red/BlueRX+
RX- 6 6 Blue/RedRX- A12 Blue/RedRX-

Port 2

EMC39-12 User’s Guide Page B-3

Appendix B: Twisted Pair Wiring Tables

Table B-1 EMC39-12 to a Punch Down Block (Continued)

From
EMC39-12

Pin Pin Pin

TX+28 28 White/GreenTX+ A5 White/GreenTX+
TX-3 3 Green/WhiteTX- A6 Green/WhiteTX­RX+ 29 29 White/BrownRX+ A7 White/BrownRX+
RX- 4 4 Brown/WhiteRX- A8 Brown/WhiteRX-

Port 1

Pin Pin Pin

TX+26 26 White/BlueTX+ A1 White/BlueTX+
TX-1 1 Blue/WhiteTX- A2 Blue/WhiteTX­RX+27 27 White/OrangeRX+ A3 White/OrangeRX+
RX-2 2 Orange/WhiteRX- A4 Orange/WhiteRX-

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

B.2 TWISTED PAIR WIRING FROM A PUNCH DOWN

BLOCK TO A 10BASE-T DEVICE

Table B-2 Punch Down Block to a 10BASE-T Device

From Punch Down
Block

To RJ45
Wallplate

Into
Office
Drop

Into
10BASE-T
Device

Port 12 Pin Pin Pin

B45 Violet/GreenRX+ 3 RX+ 3 RX+ 3 RX+
B46 Green/VioletRX- 6 RX- 6 RX- 6 RX­B47 Violet/BrownTX+ 1 TX+ 1 TX+ 1 TX+
B48 Brown/VioletTX- 2 TX- 2 TX- 2 TX-

Port 11 Pin Pin Pin

B41 Violet/BlueRX+ 3 RX+ 3 RX+ 3 RX+
B42 Blue/VioletRX- 6 RX- 6 RX- 6 RX-

Page B-4 EMC39-12 User’s Guide

TWISTED PAIR WIRING FROM A PUNCH DOWN bLOCK TO A

Table B-2 Punch Down Block to a 10BASE-T Device (Continued)

From Punch Down
Block

B43 Violet/OrangeTX+ 1 TX+ 1 TX+ 1 TX+
B44 Orange/VioletTX- 2 TX- 2 TX- 2 TX-

Port 10 Pin Pin Pin

B37 Yellow/BrownRX+ 3 RX+ 3 RX+ 3 RX+
B38 Brown/YellowRX- 6 RX- 6 RX- 6 RX­B39 Yellow/GrayTX+ 1 TX+ 1 TX+ 1 TX+
B40 Gray/YellowTX- 2 TX- 2 TX- 2 TX-

Port 9 Pin Pin Pin

B33 Yellow/OrangeRX+ 3 RX+ 3 RX+ 3 RX+
B34 Orange/YellowRX- 6 RX- 6 RX- 6 RX­B35 Yellow/GreenTX+ 1 TX+ 1 TX+ 1 TX+
B36 Green/YellowTX- 2 TX- 2 TX- 2 TX-

To RJ45
Wallplate

Into
Office
Drop

Into
10BASE-T
Device

Port 8 Pin Pin Pin

B29 Black/GrayRX+ 3 RX+ 3 RX+ 3 RX+
B30 Gray/BlackRX- 6 RX- 6 RX- 6 RX­B31 Yellow/Blue TX+ 1 TX+ 1 TX+ 1 TX+
B32 Blue/YellowTX- 2 TX- 2 TX- 2 TX-

Port 7 Pin Pin Pin

B25 Black/GreenRX+ 3 RX+ 3 RX+ 3 RX+
B26 Green/BlackRX- 6 RX- 6 RX- 6 RX­B27 Black/BrownTX+ 1 TX+ 1 TX+ 1 TX+

EMC39-12 User’s Guide Page B-5

Appendix B: Twisted Pair Wiring Tables

Table B-2 Punch Down Block to a 10BASE-T Device (Continued)

From Punch Down
Block

B28 Brown/BlackTX- 2 TX- 2 TX- 2 TX-

Port 6 Pin Pin Pin

B21 Black/BlueRX+ 3 RX+ 3 RX+ 3 RX+
B22 Blue/Black RX- 6 RX- 6 RX- 6 RX­B23 Black/OrangeTX+ 1 TX+ 1 TX+ 1 TX+
B24 Orange/Black TX- 2 TX- 2 TX- 2 TX-

Port 5 Pin Pin Pin

B17 Red/BrownRX+ 3 RX+ 3 RX+ 3 RX+
B18 Brown/RedRX- 6 RX- 6 RX- 6 RX­B19 Red/GrayTX+ 1 TX+ 1 TX+ 1 TX+
B20 Gray/RedTX- 2 TX- 2 TX- 2 TX-

Port 4 Pin Pin Pin

To RJ45
Wallplate

Into
Office
Drop

Into
10BASE-T
Device

B13 Red/OrangeRX+ 3 RX+ 3 RX+ 3 RX+
B14 Orange/RedRX- 6 RX- 6 RX- 6 RX­B15 Red/GreenTX+ 1 TX+ 1 TX+ 1 TX­B16 Green/RedTX- 2 TX- 2 TX- 2 TX-

Port 3 Pin Pin Pin

B9 White/GrayRX+ 3 RX+ 3 RX+ 3 RX+
B10 Gray/WhiteRX- 6 RX- 6 RX- 6 RX­B11 Red/BlueTX+ 11 TX+ 1 TX+ 1 TX+
B12 Blue/RedTX- 2 TX- 2 TX- 2 TX-

Page B-6 EMC39-12 User’s Guide

TWISTED PAIR WIRING FROM A PUNCH DOWN bLOCK TO A

Table B-2 Punch Down Block to a 10BASE-T Device (Continued)

From Punch Down
Block

Port 2 Pin Pin Pin

B5 White/GreenRX+ 3 RX+ 3 RX+ 3 RX+
B6 Green/WhiteRX- 6 RX- 6 RX- 6 RX­B7 White/BrownTX+ 1 TX+ 1 TX+ 1 TX+
B8 Brown/WhiteTX- 2 TX- 2 TX- 2 TX-

Port 1 Pin Pin Pin

B1 White/BlueRX+ 3 RX+ 3 RX+ 3 RX+
B2 Blue/WhiteRX- 6 RX- 6 RX- 6 RX­B3 White/OrangeTX+ 1 TX+ 1 TX+ 1 TX+
B4 Orange/WhiteTX- 2 TX- 2 TX- 2 TX-

To RJ45
Wallplate

Into
Office
Drop

Into
10BASE-T
Device

EMC39-12 User’s Guide Page B-7

Appendix B: Twisted Pair Wiring Tables

A B C D

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

44
45
46

47
48

49
50

Figure B-1 Punch Down Block Pins

Page B-8 EMC39-12 User’s Guide

POWER SUPPLY CORD

The main cord used with this equipment must be a 2 conductor plus ground type
with minimum 0.75 mm square conductors and must incorporate a standard IEC
appliance coupler on one end and a main plug on the other end which is suitable
for the use and application of the product and that is approved for use in the
country of application.

GERMAN:

Die Netzleitung, die mit diesem Geraet benuetzt wird, soll einen zwei Leiter mit
Erdleiter haben, wobei die Leiter mindestens 0.75 mm sind, mit einer normalen
IEC Geraetesteckdose an einem Ende und einem Geraetestecker am anderen Ende
versehen sind, der fuer den Gebrauch und die Anwendung des Geraetes geeignet
und der zum Benuetzen im Lande der Anwendung anerkannt ist.

SPANISH:

El cable principal de la red eléctrica utilizado con este equipo debe tener 2
conductores y 1 toma de tierra con un mínimo de 0.75 mm2 cada uno y necesita
tener un aparato de acoplamiento standard IEC en un extremo y un enchufe para
el cable principal de la red eléctrica en el otro extremo, lo cual sea adecuado para
el uso y applicación del producto y lo cual sea aprobado para uso en el pais de
applicación.

FRENCH:

Le cordon d' alimentation reliant cet appareil au secteur doit obligatoirement avoir
deux fils conducteurs de 0.75 mm2 minimum et un fil de terre. It doit également
être équipé du côté appareil d'une fiche agrée IEC et du côte secteur, d'une prise
adaptée à l'usage du produit et aux normes du pays où l'appareil est utilisé.