Cabletron Systems EMC38-12 User Manual

EMC38-12

12 PORT ETHERNET MEDIA CONVERTER

USER’S GUIDE

CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005

0

EMC38-12 USER’S GUIDE

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.

This electric hazard symbol appears in the EMC38-12 User’s Guide. Read
all instructions following this symbol. Failure to follow the instructions
appearing with this symbol could result in the presence of an electric
hazard which has the potential to cause injury.

© Copyright December 1994 by:
Cabletron Systems, Inc., P.O. Box 5005, Rochester, NH 03866-5005

All Rights Reserved
Printed in the United States of America

Part Number: 9031329 December 1994

LANVIEW
Windows
Ethernet
CompuServe

is a registered trademark of Cabletron Systems, Inc.
is a registered trademark of Microsoft Corp.
is a trademark of Xerox Corp.

is a registered trademark of CompuServe.

Printed On Recycled Paper

EMC38-12 USER’S GUIDE

i

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:

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

Changes or modifications made to this device which are not expressly

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.

ii

EMC38-12 USER’S GUIDE

NOTICE

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 Technology 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.

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, PROMPTLY RETURN THE UNUSED PRODUCT
TO THE PLACE OF PURCHASE FOR A FULL REFUND.

EMC38-12 USER’S GUIDE

: Before utilizing this product, carefully read this License Agreement.

iii

NOTICE

CABLETRON SOFTWARE PROGRAM LICENSE

1. LICENSE.
in this 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.

THER RESTRICTIONS. You may not reverse engineer, decompile, or

2. O
disassemble the Program.

3. APPLICABLE LA
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

W. This License Agreement shall be interpreted and governed

EXCLUSION OF WARRANTY AND

DISCLAIMER OF LIABILITY

1. EXCLUSION OF
Cabletron in 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 EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABLITY AND FITNESS FOR A PARTICULAR PURPOSE, WITH
RESPECT TO THE PROGRAM, THE ACCOMPANYING WRITTEN MATERIALS,
AND ANY ACCOMPANYING HARDWARE.

WARRANTY. Except as may be specifically provided by

2. NO LIABILITY FOR CONSEQ
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 WARRANTEES IN SOME INSTANCES THE ABOVE
LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU.

iv

UENTIAL DAMAGES. IN NO EVENT SHALL

EMC38-12 USER’S GUIDE

NOTICE

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

The enclosed product (a) was developed solely at pri vate 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 52.227­7013 (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.

EMC38-12 USER’S GUIDE

v

NOTICE

vi

EMC38-12 USER’S GUIDE

TABLE OF CONTENTS

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION

1.1 USING THIS MANUAL................................................................ 1-1

1.2 GETTING HELP..........................................................................1-2

1.3 EMC38-12 OVERVIEW............................................................... 1-2

1.4 EMC38-12 FEATURES...............................................................1-3

1.5 EMC38-12 SPECIFICATIONS ....................................................1-3

CHAPTER 2 INSTALLATION

2.1 UNPACKING THE EMC38-12.....................................................2-1

2.2 INSTALLING THE EMC38-12.....................................................2-1

2.2.1 Rack Mounting the EMC38-12 ....................................... 2-2

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

2.3 CONNECTING THE EMC38-12 TO THE POWER SOURCE.....2-4

CHAPTER 3 CONNECTING TO THE NETWORK

3.1 CONNECTING A TWISTED PAIR SEGMENT

TO THE EMC38-12.....................................................................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 MULTIMODE FIBER REQUIREMENTS...................A-2

EMC38-12 USER’S GUIDE

vii

TABLE OF CONTENTS

APPENDIX B TWISTED PAIR WIRING TABLES

B.1 TWISTED PAIR WIRING FROM AN EMC38-12 TO A

PUNCH DOWN BLOCK.............................................................. B-2

B.2 TWISTED PAIR WIRING FROM A PUNCH DOWN

BLOCK TO A 10Base-T DEVICE ............................................... B-5

viii

EMC38-12 USER’S GUIDE

CHAPTER 1

INTRODUCTION

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

EMC38-12 User’s Guide

. This

1.1 USING THIS MANUAL

Read through this manual to gain an understanding of the features and
capabilities of the EMC38-12. 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 EMC38-12.

Chapter 1,
specifications.

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

Chapter 3,
segments to the EMC38-12.

Chapter 4,
EMC38-12 LEDs to monitor link and power status.

Introduction

Installation

Connecting to the Network

Using the LANVIEW LEDS

, describes EMC38-12 features and

, describes how to install the EMC38-12 into a

, explains how to connect network

, describes how to use the

Appendix A,
requirements for the EMC38-12.

Appendix B,
twisted pair connector.

EMC38-12 USER’S GUIDE Page 1-1

Cable Requirements

T wisted Pair Wiring Tables

lists twisted pair and multimode cable

, lists pinouts for the 50-pin

CHAPTER 1:

INTRODUCTION

1.2 GETTING HELP

If you need additional support related to the EMC38-12, or if you have
any questions, comments, or suggestions concerning this manual, contact
Cabletron Systems Technical Support:

By phone ..........................[phone]

Monday-Friday; 8am - 8pm EST

®

By CompuServe

.............GO CTRON from any! prompt

By Internet mail [e-mail]

1.3 EMC38-12 OVERVIEW

The EMC38-12 converts ethernet IEEE 802.3 10Base-T signals to
ethernet IEEE 802.3j 10Base-FL signals. It also converts ethernet
10Base-T signals to ethernet 10Base-FL signals. The rear panel has a
50-pin Champ connector (RJ-71) that supports twelve twisted pair
segments. The front panel has twelve 10Base-FL multimode ST ports.
Figure 1-1 shows the EMC38-12 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

Ethernet Media Converter WITH LANVIEW

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

12X 1X

Rear View

87

6543

TX

21

PWR

TPLINK

XMT
RCV

FOLNK

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

EMC38-12

Ethernet Media Converter

EMC38-12

Figure 1-1. The EMC38-12

Page 1-2 EMC38-12 USER’S GUIDE

EMC38-12 FEATURES

1.4 EMC38-12 FEATURES

Automatic Transmit Port Disable

The EMC38-12 automatically disables the Transmit port when its
corresponding Receive port does not have a link.

Full Duplex Ethernet Support

All of the EMC38-12 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 EMC38-12 to transmit and receive
signals simultaneously for a 20 Megabit bandwidth through-put.

LANVIEW Diagnostic LEDs

Cabletron equips the EMC38-12 with a visual diagnostic and monitoring
system called LANVIEW. LANVIEW LEDs help you quickly identify
Power and Link status.

Connectivity

The rear panel of the EMC38-12 has a 50-pin Champ connector (RJ-71)
that supports twelve twisted pair segments. The front panel has twelve
10Base-FL multimode ST ports. Each multimode ST port has a Receive
connector and a Transmit connector.

1.5 EMC38-12 SPECIFICATIONS

This section describes operating specifications for the EMC38-12.
Cabletron Systems reserves the right to change these specifications at any
time without notice.

Physical Specifications

Dimensions: 17” L x 9.4” W x 1.7” H

Weight: 4 lbs.

Power Requirements

Input: 100 to 125 Volts AC, 1.0A

200 to 240 Volts AC, 0.5A

50 to 60 Hz

EMC38-12 USER’S GUIDE Page 1-3

CHAPTER 1:

Environmental Requirements

INTRODUCTION

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

°

Non-operating T emperature: -30

to +90° C (-22° to 194° F)

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

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 EMC38-12 USER’S GUIDE

CHAPTER 2

INSTALLATION

This chapter explains how to install the EMC38-12 in a 19-inch rack and
also provides requirements for installing the EMC38-12 on a tabletop or
shelf.

2.1 UNPACKING THE EMC38-12

Unpack the EMC38-12 as follows:

1. Remove the shipping box material covering the EMC38-12.

2. Carefully remove the EMC38-12 from the shipping box.

3. Remove the EMC38-12 from its non-conductive bag. If you notice any

signs of damage, contact Cabletron Systems Technical Support
immediately.

2.2 INSTALLING THE EMC38-12

You can install the EMC38-12 in a 19-inch rack or place it on any
horizontal surface (e.g. a table or shelf). Cabletron provides an accessory
kit with the EMC38-12 that includes Rack Mount Brackets and Mounting
Screws.

The following sections provide instructions for installing the EMC38-12.
Select one of the following subsections and perform the steps that are
applicable to your installation needs.

EMC38-12 USER’S GUIDE Page 2-1

CHAPTER 2:

INSTALLATION

2.2.1 Rack Mounting the EMC38-12

Before installing the EMC38-12, care must be taken to ensure that the
rack used will support the unit and that the rack remains stable with the
EMC38-12 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

The following procedure explain how to install the EMC38-12 in a
19-Inch rack.

1. Remove four cover screws (two from each side) located along the

2. Using the four cover screws removed in step 1, attach the rack

for power and enviromental requirements.

front edges of each side of the EMC38-12. Figure 2-1 shows the
location of the screws.

Do not remove the cover from the EMC38-12.

mounting brackets to each end of the EMC38-12.

Rack Mounting

Brackets (2)

EMC38-12

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 2-1. Installing the Rack Mount Brackets

Page 2-2 EMC38-12 USER’S GUIDE

INSTALLING THE EMC38-12

3. With the rack mounting brackets installed, position the EMC38-12

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

EMC38-12

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 EMC38-12 in a 19-Inch Rack

2.2.2 Free-Standing Shelf or Tabletop Installation

Figure 2-3 shows the surface requirements for installing the EMC38-12
on a shelf or tabletop. Shelving units must support 30 pounds of static
weight. Before you install the EMC38-12, ensure the power source and
enviromental conditions meet the requirements specified in

Chapter 1

.

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

EMC38-12

Ethernet Media Converter

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

121110 9

7 FT.

Figure 2-3. Shelf or Table-top Installation

EMC38-12 USER’S GUIDE Page 2-3

CHAPTER 2:

INSTALLATION

2.3 CONNECTING THE EMC38-12 TO THE POWER SOURCE

Note

: The EMC38-12 has a universal power supply. This allows you to
connect the EMC38-12 to power sources from 100 Vac to 125 Vac,
50-60 Hz. or 200 Vac to 240 Vac, 50-60 Hz.

To connect the EMC38-12 to the power source:

1. Plug the power cord into the back panel of the EMC38-12.

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

PWR

3. Verify that the

receiving power.

LED is on, this indicates that the EMC38-12 is

Page 2-4 EMC38-12 USER’S GUIDE

CHAPTER 3

CONNECTING TO THE NETWORK

This chapter outlines the procedure for connecting the EMC38-12 to your
network.

3.1 CONNECTING A TWISTED PAIR SEGMENT TO THE EMC38-12

The rear panel of the EMC38-12 has a 50-pin Champ connector. The
configuration outlined in this section explains how to attach a twisted pair
cable to the EMC38-12 and to a 10Base-T compliant ethernet device that
has a 50-pin Champ connector (e.g. Cabletron’s ELM or TPRMIM).

You can also run a 50-pin feeder cable from the EMC38-12 to a punch
down block. The Champ connector supports twelve 10Base-T, twisted
pair segments.

Note

: Refer to

a punch down block.

Appendix B

for information about wiring the EMC38-12 to

To connect the EMC38-12 to a 10Base-T compliant ethernet device:

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

EMC38-12 as shown in Figure 3-1.

EMC38-12

Ethernet Media Converter

WITH

12X 1X

LANVIEW

Figure 3-1. EMC38-12

EMC38-12 USER’S GUIDE Page 3-1

CHAPTER 3:

CONNECTING TO THE NETWORK

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 EMC38-12 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 EMC38-12 have power.

b. Verify the cabling between the EMC38-12 and the 10Base-T

device.

c. Check the cable for continuity.

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

3.2 CONNECTING A FIBER OPTIC LINK SEGMENT

When connecting a fiber optic link segment the EMC38-12 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 device 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 Recei ve
strand of the applicable port on the module will be connected to the
Transmit port of the fiber optic ethernet device. F or example, RX of
the applicable port on the module will go to TX of the other fiber
optic device.

Page 3-2 EMC38-12 USER’S GUIDE

CONNECTING A FIBER OPTIC LINK SEGMENT

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.

Caution: 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.
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.

To connect a fiber optic link segment to the EMC38-12:

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.

EMC38-12

TPLINK

XMT
RCV

PWR

FOLNK

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

Ethernet Media Converter WITH LANVIEW

RXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRXTXRX

11

12 10 9

87

6543

TX

21

Figure 3-2. Connecting a Fiber Link to the EMC38-12

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.

EMC38-12 USER’S GUIDE Page 3-3

CHAPTER 3: CONNECTING TO THE NETWORK

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

6. Check that the FOLNK LED on the ECM38-12 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.

3.3 FINISHING THE INSTALLATION

The EMC38-12 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 EMC38-12 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.

Page 3-4 EMC38-12 USER’S GUIDE

CHAPTER 4

USING THE LANVIEW LEDS

This chapter describes how to use the LANVIEW Diagnostic LEDs to
monitor EMC38-12 status and diagnose problems.

EMC38-12

TPLINK

XMT
RCV

PWR

FOLNK

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

Figure 4-1. LANVIEW LEDS

4.1 PWR (Power)

• On (Green) - Indicates that the EMC38-12 is receiving power.

• 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.

EMC38-12 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 otic 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 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.

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 EMC38-12 USER’S GUIDE

APPENDIX A

CABLE REQUIREMENTS

This appendix provides cable requirements for each of the EMC38-12
ports.

A.1 10Base-T TWISTED PAIR REQUIREMENTS

When you connect a 10Base-T twisted pair segment to the EMC38-12,
the device at the other end of the twisted pair segment must meet IEEE

802.3 10Base-T specifications. Your 10Base-T twisted pair se gment 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.

EMC38-12 USER’S GUIDE Page A-1

APPENDIX A: CABLE REQUIREMENTS

A.2 10Base-FL MULTIMODE FIBER REQUIREMENTS

When you connect a 10Base-FL Multimode Fiber segment to the
EMC38-12, the device at the other end of the fiber segment must meet
IEEE 802.3j 10Base-FL specifications. Your 10Base-FL Multimode Fiber
segment must meet the following requirements.

Segment Length

The IEEE 10Base-FL standard requires that devices be able to transmit
from 0 to at least 2000 meters (6561 feet) per segment of fiber optic cable.

Optical Connector Insertion Loss

The 10Base-FL standard was developed on the basis of a maximum
insertion loss of 1 db.

Segment Insertion Loss

The optical insertion loss of 10Base-FL segments shall be less than

12.5 db, measured using an optical signal source with a center wavelength
of 850 nm and a spectral width of 75 nm.

Attenuation

The 10Base-FL standard was developed on the basis of attenuation v alues
of less than or equal to 3.75 dB/km, when measured at a wavelength of
850 nm with 62.5/125

µm fiber.

Page A-2 EMC38-12 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:

• T able B-1 T wisted P air W iring from an EMC38-12 to a Punch Down
Block

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

EMC38-12 USER’S GUIDE Page B-1

APPENDIX B: TWISTED PAIR WIRING TABLES

B.1 TWISTED PAIR WIRING FROM AN EMC38-12 TO A

PUNCH DOWN BLOCK

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

Table B-1. EMC38-12 to a Punch Down Block

From
EMC38-12

Port 12

Pin Pin Pin

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

Port 11

Pin Pin Pin

TX+ 46 46 Violet/Blue TX+ A41 Violet/Blue TX+
TX- 21 21 Blue/Violet TX- A42 Blue/V iolet TX­RX+ 47 47 Violet/Orange RX+ A43 Violet/Orange RX+
RX- 22 22 Orange/Violet RX- A44 Orange/Violet RX-

Port 10

Pin Pin Pin

TX+ 44 44 Yellow/Brown TX+ A37 Yello w/Bro wn TX+
TX- 19 19 Brown/Yellow TX- A38 Brown/Y ello w TX­RX+ 45 45 Yellow/Gray RX+ A39 Yellow/Gray RX+
RX- 20 20 Gray/Yellow RX- A40 Gray/Yellow RX-

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

Port 9

Pin Pin Pin

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

Page B-2 EMC38-12 USER’S GUIDE

TWISTED PAIR WIRING TABLES

Table B-1. EMC38-12 to a Punch Down Block (Continued)

From
EMC38-12

Port 8

Pin Pin Pin

TX+ 40 40 Black/Gray TX+ A29 Black/Gray TX+
TX- 15 15 Gray/Black TX- A30 Gray/Black TX­RX+ 41 41 Yellow/Blue RX+ A31 Yellow/Blue RX+
RX- 16 16 Blue/Yellow RX- A32 Blue/Yellow RX-

Port 7

Pin Pin Pin
TX+ 38 38 Black/Green TX+ A25 Black/Green TX+
TX- 13 13 Green/Black TX- A26 Green/Black TX­RX+ 39 39 Black/Brown RX+ A27 Black/Brown RX+
RX- 14 14 Brown/Black RX- A28 Brown/Black RX-

Port 6

Pin Pin Pin

TX+ 36 36 Black/Blue TX+ A21 Black/Blue TX+
TX- 11 11 Blue/Black TX- A22 Blue/Black TX­RX+ 37 37 Black/Orange RX+ A23 Black/Orange RX+
RX- 12 12 Orange/Black RX- A24 Orange/Black RX-

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

Port 5

Pin Pin Pin
TX+ 34 34 Red/Brown TX+ A17 Red/Brown TX+
TX- 9 9 Brown/Red TX- A18 Brown/Red TX­RX+ 35 35 Red/Gray RX+ A19 Red/Gray RX+
RX- 10 10 Gray/Red RX- A20 Gray/Red RX-

EMC38-12 USER’S GUIDE Page B-3

APPENDIX B: TWISTED PAIR WIRING TABLES

Table B-1. EMC38-12 to a Punch Down Block (Continued)

From
EMC38-12

Port 4

Pin Pin Pin
TX+ 32 32 Red/Orange TX+ A13 Red/Orange TX+
TX- 7 7 Orange/Red TX- A14 Orange/Red TX­RX+ 33 33 Red/Green RX+ A15 Red/Green RX+
RX- 8 8 Green/Red RX- A16 Green/Red RX

Port 3

Pin Pin Pin
TX+ 30 30 White/Gray TX+ A9 White/Gray TX+
TX- 5 5 Gray/White TX- A10 Gray/White TX­RX+ 31 31 Red/Blue RX+ A11 Red/Blue RX+
RX- 6 6 Blue/Red RX- A12 Blue/Red RX-

Port 2

Pin Pin Pin

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

Into and Out of 50
Pin Feeder Cable

Into Punch Down
Block

Port 1

Pin Pin Pin

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

Page B-4 EMC38-12 USER’S GUIDE

TWISTED PAIR WIRING TABLES

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

Port 12 Pin Pin Pin

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

Port 11 Pin Pin Pin

B41 Violet/Blue RX+ 3 RX+ 3 RX+ 3 RX+
B42 Blue/Violet RX- 6 RX- 6 RX- 6 RX­B43 Violet/Orange TX+ 1 TX+ 1 TX+ 1 TX+
B44 Orange/Violet TX- 2 TX- 2 TX- 2 TX-

Port 10 Pin Pin Pin

B37 Yellow/Brown RX+ 3 RX+ 3 RX+ 3 RX+

To RJ-45
Wallplate

Into
Office
Drop

Into
10Base-T
Device

B38 Brown/Yellow RX- 6 RX- 6 RX- 6 RX­B39 Yellow/Gray TX+ 1 TX+ 1 TX+ 1 TX+
B40 Gray/Yellow TX- 2 TX- 2 TX- 2 TX-

Port 9 Pin Pin Pin

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

EMC38-12 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

Port 8 Pin Pin Pin

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

Port 7 Pin Pin Pin

B25 Black/Green RX+ 3 RX+ 3 RX+ 3 RX+
B26 Green/Black RX- 6 RX- 6 RX- 6 RX­B27 Black/Brown TX+ 1 TX+ 1 TX+ 1 TX+
B28 Brown/Black TX- 2 TX- 2 TX- 2 TX-

Port 6 Pin Pin Pin

B21 Black/Blue RX+ 3 RX+ 3 RX+ 3 RX+

To RJ-45
Wallplate

Into
Office
Drop

Into
10Base-T
Device

B22 Blue/Black RX- 6 RX- 6 RX- 6 RX­B23 Black/Orange TX+ 1 TX+ 1 TX+ 1 TX+
B24 Orange/Black TX- 2 TX- 2 TX- 2 TX-

Port 5 Pin Pin Pin

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

Page B-6 EMC38-12 USER’S GUIDE

TWISTED PAIR WIRING TABLES

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

From Punch Down
Block

Port 4 Pin Pin Pin

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

Port 3 Pin Pin Pin

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

Port 2 Pin Pin Pin

B5 White/Green RX+ 3 RX+ 3 RX+ 3 RX+

To RJ-45
Wallplate

Into
Office
Drop

Into
10Base-T
Device

B6 Green/White RX- 6 RX- 6 RX- 6 RX­B7 White/Brown TX+ 1 TX+ 1 TX+ 1 TX+
B8 Brown/White TX- 2 TX- 2 TX- 2 TX-

Port 1 Pin Pin Pin

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

EMC38-12 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 EMC38-12 USER’S GUIDE

POWER SUPPLY CORD

The mains 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 mains 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.