Cabletron Systems Power Supply EMC38 12 User Manual

EMC38-12  
12 PORT ETHERNET MEDIA CONVERTER  
USER’S GUIDE  
CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03866-5005  
 
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 is a registered trademark of Cabletron Systems, Inc.  
Windows is a registered trademark of Microsoft Corp.  
Ethernet is a trademark of Xerox Corp.  
CompuServe 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: Changes or modifications made to this device which are not expressly  
approved by the party responsible for compliance could void the user’s authority to  
operate the equipment.  
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: Before utilizing this product, carefully read this License Agreement.  
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  
iii  
 
NOTICE  
CABLETRON SOFTWARE PROGRAM LICENSE  
1. LICENSE. You have the right to use only the one (1) copy of the Program provided  
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.  
2. OTHER RESTRICTIONS. You may not reverse engineer, decompile, or  
disassemble the Program.  
3. APPLICABLE LAW. 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.  
EXCLUSION OF WARRANTY AND  
DISCLAIMER OF LIABILITY  
1. EXCLUSION OF WARRANTY. Except as may be specifically provided by  
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.  
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 WARRANTEES IN SOME INSTANCES THE ABOVE  
LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU.  
iv  
EMC38-12 USER’S GUIDE  
 
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.  
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 EMC38-12 User’s Guide. This  
manual explains installation instructions and provides specifications for  
the twelve port Ethernet Media Converter (EMC).  
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, Introduction, describes EMC38-12 features and  
specifications.  
Chapter 2, Installation, describes how to install the EMC38-12 into a  
19-inch rack or as a stand-alone device.  
Chapter 3, Connecting to the Network, explains how to connect network  
segments to the EMC38-12.  
Chapter 4, Using the LANVIEW LEDS, describes how to use the  
EMC38-12 LEDs to monitor link and power status.  
Appendix A, Cable Requirements lists twisted pair and multimode cable  
requirements for the EMC38-12.  
Appendix B, Twisted Pair Wiring Tables, lists pinouts for the 50-pin  
twisted pair connector.  
EMC38-12 USER’S GUIDE  
Page 1-1  
 
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 ..........................(603) 332-9400  
Monday-Friday; 8am - 8pm EST  
®
By CompuServe .............GO CTRON from any! prompt  
By Internet mail ...............s[email protected]  
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  
EMC38-12 Ethernet Media Converter WITH LANVIEW  
TPLINK  
XMT  
RCV  
RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX  
PWR  
FOLNK  
11  
8
7
2
1
12  
10  
9
6
5
4
3
12 11 10  
9
8
7
6
5
4
3
2
1
EMC38-12  
Ethernet Media Converter  
12X  
1X  
Rear View  
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  
4 lbs.  
Weight:  
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: INTRODUCTION  
Environmental Requirements  
Operating Temperature:  
+5° to +40° C (41° to 104° F)  
Non-operating Temperature: -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 for power and enviromental requirements.  
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  
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.  
2. Using the four cover screws removed in step 1, attach the rack  
mounting brackets to each end of the EMC38-12.  
Rack Mounting  
Brackets (2)  
EMC38-12 Ethernet Media Converter WITH LANVIEW  
TPLINK  
XMT  
RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX  
RCV  
PWR  
FOLNK  
12 11 10  
9
8
7
6
5
4
3
2
1
12  
11  
10  
9
8
7
6
5
4
3
2
1
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 Ethernet Media Converter WITH LANVIEW  
TPLINK  
XMT  
RCV  
RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX  
PWR  
FOLNK  
12 11 10  
9
8
7
6
5
4
3
2
1
12  
11  
10  
9
8
7
6
5
4
3
2
1
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.  
18 IN.  
EMC38-12 Ethernet Media Converter WITH LANVIEW  
TPLINK  
XMT  
RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX  
RCV  
6 IN.  
PWR  
FOLNK  
12 11 10  
9
8
7
6
5
4
3
2
1
12  
11  
10  
9
8
7
6
5
4
3
2
1
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.  
3. Verify that the PWR LED is on, this indicates that the EMC38-12 is  
receiving power.  
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 Appendix B for information about wiring the EMC38-12 to  
a punch down block.  
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 LANVIEW  
12X  
1X  
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 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.  
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 Ethernet Media Converter WITH LANVIEW  
TPLINK  
XMT  
RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX  
RCV  
PWR  
FOLNK  
12 11 10  
9
8
7
6
5
4
3
2
1
11  
8
7
2
1
12  
10  
9
6
5
4
3
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 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.  
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 values  
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:  
Table B-1 Twisted Pair Wiring 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  
Fr om  
EMC38-12  
In to a n d Ou t of 50  
P in Feed er Ca ble  
In to P u n ch Dow n  
Block  
Port 12  
Pin  
Pin  
Pin  
TX+ 48  
48 Violet/Green  
23 Green/Violet  
TX+  
TX-  
A45 Violet/Green TX+  
A46 Green/Violet TX-  
A47 Violet/Brown RX+  
A48 Brown/Violet RX-  
TX-  
23  
RX+ 49  
RX- 24  
49 Violet/Brown RX+  
24 Brown/Violet RX-  
Port 11  
Pin  
TX+ 46  
TX- 21  
Pin  
Pin  
46 Violet/Blue  
21 Blue/Violet  
TX+  
TX-  
A41 Violet/Blue  
A42 Blue/Violet  
TX+  
TX-  
RX+ 47  
RX- 22  
47 Violet/Orange RX+  
22 Orange/Violet RX-  
A43 Violet/Orange RX+  
A44 Orange/Violet RX-  
Port 10  
Pin  
Pin  
Pin  
TX+ 44  
44 Yellow/Brown TX+  
19 Brown/Yellow TX-  
A37 Yellow/Brown TX+  
A38 Brown/Yellow TX-  
TX-  
19  
RX+ 45  
RX- 20  
45 Yellow/Gray  
20 Gray/Yellow  
RX+  
RX-  
A39 Yellow/Gray  
A40 Gray/Yellow  
RX+  
RX-  
Port 9  
Pin  
TX+ 42  
TX- 17  
Pin  
Pin  
42 Yellow/Orange TX+  
17 Orange/Yellow TX-  
43 Yellow/Green RX+  
18 Green/Yellow RX-  
A33 Yellow/Orange TX+  
A34 Orange/Yellow TX-  
A35 Yellow/Green RX+  
A36 Green/Yellow RX-  
RX+ 43  
RX- 18  
Page B-2  
EMC38-12 USER’S GUIDE  
 
TWISTED PAIR WIRING TABLES  
Table B-1. EMC38-12 to a Punch Down Block (Continued)  
Fr om  
EMC38-12  
In to a n d Ou t of 50  
P in Feed er Ca ble  
In to P u n ch Dow n  
Block  
Port 8  
Pin  
TX+ 40  
TX- 15  
Pin  
Pin  
40 Black/Gray  
15 Gray/Black  
41 Yellow/Blue  
16 Blue/Yellow  
TX+  
TX-  
RX+  
RX-  
A29 Black/Gray  
A30 Gray/Black  
TX+  
TX-  
RX+ 41  
RX- 16  
A31 Yellow/Blue RX+  
A32 Blue/Yellow RX-  
Port 7  
Pin  
TX+ 38  
TX- 13  
Pin  
Pin  
38 Black/Green  
13 Green/Black  
TX+  
TX-  
A25 Black/Green TX+  
A26 Green/Black TX-  
A27 Black/Brown RX+  
A28 Brown/Black RX-  
RX+ 39  
RX- 14  
39 Black/Brown RX+  
14 Brown/Black RX-  
Port 6  
Pin  
TX+ 36  
TX- 11  
Pin  
Pin  
36 Black/Blue  
11 Blue/Black  
TX+  
TX-  
A21 Black/Blue  
A22 Blue/Black  
TX+  
TX-  
RX+ 37  
RX- 12  
37 Black/Orange RX+  
12 Orange/Black RX-  
A23 Black/Orange RX+  
A24 Orange/Black RX-  
Port 5  
Pin  
TX+ 34  
TX-  
Pin  
Pin  
34 Red/Brown  
Brown/Red  
TX+  
TX-  
RX+  
RX-  
A17 Red/Brown  
A18 Brown/Red  
A19 Red/Gray  
A20 Gray/Red  
TX+  
TX-  
RX+  
RX-  
9
9
RX+ 35  
RX- 10  
35 Red/Gray  
10 Gray/Red  
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)  
Fr om  
EMC38-12  
In to a n d Ou t of 50  
P in Feed er Ca ble  
In to P u n ch Dow n  
Block  
Port 4  
Pin  
Pin  
Pin  
TX+ 32  
32 Red/Orange  
Orange/Red  
33 Red/Green  
TX+  
TX-  
RX+  
RX-  
A13 Red/Orange  
A14 Orange/Red  
A15 Red/Green  
A16 Green/Red  
TX+  
TX-  
7
7
TX-  
RX+  
RX  
RX+ 33  
RX-  
Port 3  
8
8
Green/Red  
Pin  
Pin  
Pin  
TX+ 30  
TX-  
RX+ 31  
30 White/Gray  
Gray/White  
31 Red/Blue  
TX+  
TX-  
RX+  
RX-  
A9 White/Gray  
A10 Gray/White  
A11 Red/Blue  
A12 Blue/Red  
TX+  
TX-  
RX+  
RX-  
5
5
RX-  
6
6
Blue/Red  
Port 2  
Pin  
Pin  
Pin  
TX+ 28  
TX-  
RX+ 29  
28 White/Green TX+  
Green/White TX-  
29 White/Brown RX+  
A5 White/Green TX+  
A6 Green/White TX-  
A7 White/Brown RX+  
A8 Brown/White RX-  
3
3
RX-  
4
4
Brown/White RX-  
Port 1  
Pin  
Pin  
Pin  
TX+ 26  
TX-  
RX+ 27  
26 White/Blue  
Blue/White  
TX+  
TX-  
A1 White/Blue  
A2 Blue/White  
TX+  
TX-  
1
1
27 White/Orange RX+  
2 Orange/White RX-  
A3 White/Orange RX+  
A4 Orange/White RX-  
RX-  
2
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  
Fr om P u n ch Dow n  
Block  
To RJ -45  
Wa llp la te Office  
Dr op  
In to  
In to  
10Ba se-T  
Device  
Port 12  
Pin  
Pin  
Pin  
B45 Violet/Green  
B46 Green/Violet  
B47 Violet/Brown  
B48 Brown/Violet  
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 11  
Pin  
Pin  
Pin  
B41 Violet/Blue  
B42 Blue/Violet  
B43 Violet/Orange  
B44 Orange/Violet  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 10  
Pin  
Pin  
Pin  
B37 Yellow/Brown  
B38 Brown/Yellow  
B39 Yellow/Gray  
B40 Gray/Yellow  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 9  
Pin  
Pin  
Pin  
B33 Yellow/Orange  
B34 Orange/Yellow  
B35 Yellow/Green  
B36 Green/Yellow  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
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)  
Fr om P u n ch Dow n  
Block  
To RJ -45  
Wa llp la te Office  
Dr op  
In to  
In to  
10Ba se-T  
Device  
Port 8  
Pin  
Pin  
Pin  
B29 Black/Gray  
B30 Gray/Black  
B31 Yellow/Blue  
B32 Blue/Yellow  
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 7  
Pin  
Pin  
Pin  
B25 Black/Green  
B26 Green/Black  
B27 Black/Brown  
B28 Brown/Black  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 6  
Pin  
Pin  
Pin  
B21 Black/Blue  
B22 Blue/Black  
B23 Black/Orange  
B24 Orange/Black  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 5  
Pin  
Pin  
Pin  
B17 Red/Brown  
B18 Brown/Red  
B19 Red/Gray  
B20 Gray/Red  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
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)  
Fr om P u n ch Dow n  
Block  
To RJ -45  
Wa llp la te Office  
Dr op  
In to  
In to  
10Ba se-T  
Device  
Port 4  
Pin  
Pin  
Pin  
B13 Red/Orange  
B14 Orange/Red  
B15 Red/Green  
B16 Green/Red  
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX-  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 3  
Pin  
Pin  
Pin  
B9 White/Gray  
B10 Gray/White  
B11 Red/Blue  
B12 Blue/Red  
RX+  
RX-  
TX+  
TX-  
3
6
RX+  
RX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
11 TX+  
TX-  
2
Port 2  
Pin  
Pin  
Pin  
B5 White/Green  
B6 Green/White  
B7 White/Brown  
B8 Brown/White  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
Port 1  
Pin  
Pin  
Pin  
B1 White/Blue  
B2 Blue/White  
B3 White/Orange  
B4 Orange/White  
RX+  
RX-  
TX+  
TX-  
3
6
1
2
RX+  
3
6
1
2
RX+  
3
6
1
2
RX+  
RX-  
TX+  
TX-  
RX-  
TX+  
TX-  
RX-  
TX+  
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
1 0  
1 1  
1 2  
1 3  
1 4  
1 5  
1 6  
1 7  
1 8  
1 9  
2 0  
2 1  
2 2  
2 3  
2 4  
2 5  
2 6  
2 7  
2 8  
2 9  
3 0  
3 1  
3 2  
3 3  
3 4  
3 5  
3 6  
3 7  
3 8  
3 9  
4 0  
4 1  
4 2  
4 3  
4 4  
4 5  
4 6  
4 7  
4 8  
4 9  
5 0  
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.  
 

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