Allied Telesis MMC2000 Series User manual

613-002037 Rev. F
MMC2000/200 Series
Mini Switching Media Converters
AT-MMC2000/SC
AT-MMC2000/ST
AT-MMC2000/LC
AT-MMC2000/SP
AT-MMC2000LX/SC
AT-MMC2000LX/LC
AT-MMC2000/T
AT-MMC200/SC
AT-MMC200/ST
AT-MMC200/LC
AT-MMC200LX/SC
AT-MMC200LX/ST
Installation Guide

Copyright  2021 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names,
logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.
Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior
written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be liable for
any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related
to this manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or should have known, the
possibility of such damages.

3
Electrical Safety and Emissions
Standards
This section contains the following:
“US Federal Communications Commission”
“Safety Standards and Electromagnetic Compatibility” on page 3
“Translated Safety Statements” on page 4
US Federal Communications Commission
Radiated Energy
Note
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with this instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own
expense.
Note
Modifications or changes not expressly approved of by the manufacturer or the FCC, can void
your right to operate this equipment.
Safety Standards and Electromagnetic Compatibility
Safety EN62368-1 (TUV), UL 60950-1 (CULUS)
Electromagnetic Compatibility (EMC) FCC Class A, EN55024, EN55032 Class A, CISPR 32
Class A, VCCI Class A, RCM, EN61000-3-2, EN61000-3-3,
ICES-003
Warning
In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.  E84

4
Translated Safety Statements
Important: The  indicates that a translation of the safety statement is available in a PDF
document titled Translated Safety Statements on the Allied Telesis website at
www.alliedtelesis.com/support.

5
Contents
Preface............................................................................................................................................................. 11
Symbol Conventions .................................................................................................................................. 12
Contacting Allied Telesis............................................................................................................................ 13
Chapter 1: Overview ..................................................................................................................................... 15
Introduction ................................................................................................................................................ 16
Front Panels ........................................................................................................................................ 16
Back Panel .......................................................................................................................................... 19
Features ..................................................................................................................................................... 20
Twisted-Pair Port ................................................................................................................................. 22
Auto MDI/MDI-X .................................................................................................................................. 22
Auto-Negotiation or 100 Mbps Full-Duplex Mode................................................................................ 22
External AC/DC Power Adapter .......................................................................................................... 23
LEDs .......................................................................................................................................................... 24
V2 and V3 Series Media Converters.......................................................................................................... 27
Differences Between V2 and V3.......................................................................................................... 28
V2 Series Media Converters ...................................................................................................................... 29
Guidelines for the SML Mode for V2 ................................................................................................... 29
Example Scenarios in SML Mode ....................................................................................................... 29
V3 Series Media Converters ...................................................................................................................... 30
Guidelines for the SML and ML Modes ............................................................................................... 30
Example Scenarios in ML and SML Modes......................................................................................... 30
Smart MissingLink™ (SML) ....................................................................................................................... 31
Media Converter with SML Off ............................................................................................................ 31
Standalone Media Converter in SML Mode......................................................................................... 32
Media Converters in Pairs in SML Mode ............................................................................................. 33
Missing Link (ML)....................................................................................................................................... 34
Standalone Media Converter in ML Mode ........................................................................................... 34
Reset the Media Converter ........................................................................................................................ 36
Chapter 2: Installation ................................................................................................................................... 37
Reviewing Safety Precautions ................................................................................................................... 38
Selecting a Site for the Media Converter ................................................................................................... 40
Planning the Installation............................................................................................................................. 41
Unpacking the Media Converter................................................................................................................. 44
Installing the Media Converter ................................................................................................................... 47
Installing the Media Converter on a Desktop....................................................................................... 47
Installing the SFP Transceiver ................................................................................................................... 48
Powering On and Cabling the Media Converter......................................................................................... 51
Cabling Guidelines .............................................................................................................................. 51
Applying Power and Connecting the Network Cables ......................................................................... 51
Chapter 3: Troubleshooting .......................................................................................................................... 53
Appendix A: Technical Specifications ............................................................................................................ 57
Physical Specifications............................................................................................................................... 57
Environmental Specifications..................................................................................................................... 57

Contents
6
Power Specifications ..................................................................................................................................58
RJ45 Connector and Port Pinouts ..............................................................................................................58
Fiber-Optic Port Specifications ...................................................................................................................60
Appendix B: AT-MMCWLMT Kit Installation ...................................................................................................63

7
Figures
Figure 1: Front Panel for the MMC2000/200 Series Media Converters with the SC Connector.......................................... 16
Figure 2: Front Panel for the MMC2000/200 Series Media Converters with the ST Connector .......................................... 17
Figure 3: Front Panel for the MMC2000/200 Series Media Converters with the LC Connector .......................................... 17
Figure 4: AT-MMC2000/SP Front Panel.............................................................................................................................. 18
Figure 5: AT-MMC2000/T Front Panel ................................................................................................................................ 18
Figure 6: Media Converter Back Panel of the MMC2000/200 V2 Series............................................................................. 19
Figure 7: Media Converter Back Panel of the MMC2000/200 V3 Series............................................................................. 19
Figure 8: PWR and SYS LEDs on the Back Panel.............................................................................................................. 24
Figure 9: Port LEDs on the MMC2000/200 Series with a Fiber Port ................................................................................... 25
Figure 10: Port LEDs on the AT-MMC2000/T Model........................................................................................................... 26
Figure 11: Two Media Converters in Pair ............................................................................................................................ 27
Figure 12: Possible Situation with Standalone Media Converter with SML ......................................................................... 27
Figure 13: Standalone with ML When Copper Link is Down ............................................................................................... 28
Figure 14: Normal Condition................................................................................................................................................ 31
Figure 15: Fiber Connection Down with SML Off ................................................................................................................ 31
Figure 16: Copper Connection Down with SML Off............................................................................................................. 32
Figure 17: SML in Normal Condition.................................................................................................................................... 32
Figure 18: SML with Fiber Connection Down ...................................................................................................................... 32
Figure 19: SML with Copper Connection Down................................................................................................................... 32
Figure 20: SML in Normal Condition with Two Media Converters....................................................................................... 33
Figure 21: SML with Copper Connection to End Node Down.............................................................................................. 33
Figure 22: SML with Fiber Connection Between Media Converters Down.......................................................................... 33
Figure 23: ML in Normal Condition ...................................................................................................................................... 34
Figure 24: ML with Fiber Connection Down......................................................................................................................... 34
Figure 25: ML with Copper Connection Down..................................................................................................................... 35
Figure 26: MMC2000/200/SC Series and MMC2000/200/LX/SC Series Shipping Package Contents ............................... 44
Figure 27: MMC2000/200/ST Series and AT-MMC200LX/ST Shipping Package Contents ............................................... 45
Figure 28: MMC2000/200/LC Series and AT-MMC2000/LX/LC Shipping Package Contents ............................................ 45
Figure 29: AT-MMC2000/SP Shipping Package Contents.................................................................................................. 46
Figure 30: AT-MMC2000/T Shipping Package Content ...................................................................................................... 46
Figure 31: Removing the Dust Plug from an SFP Slot ........................................................................................................ 48
Figure 32: Inserting the SFP................................................................................................................................................ 49
Figure 33: Positioning the SFP Handle in the Upright Position ........................................................................................... 49
Figure 34: Connecting 12VDC Powered Unit ...................................................................................................................... 51
Figure 35: RJ45 Connector and Port Pin Layout................................................................................................................. 58
Figure 36: Attaching the Brackets to the Media Converter.................................................................................................. 64
Figure 37: Wall-mount Template ......................................................................................................................................... 64
Figure 38: Placing the Template on the Wall....................................................................................................................... 65
Figure 39: Securing the Media Converter to the Wall.......................................................................................................... 66

List of Figures
8

9
Tables
Table 1. Port Specifications for the MMC2000/200 Series .................................................................................................20
Table 2. Port Specifications for the AT-MMC2000/T Model ...............................................................................................21
Table 3. Media Converter LED on the Back Panel .............................................................................................................24
Table 4. Port LEDs for the MMC2000/200 Series with a Fiber Port ...................................................................................25
Table 5. Port LEDs for the AT-MMC2000/T Model .............................................................................................................26
Table 6. Differences between V2 and V3 ...........................................................................................................................28
Table 7. Twisted-Pair Port Cabling Specifications ..............................................................................................................42
Table 8. Copper Connection Speed/Duplex Settings and Resulting Speed .......................................................................43
Table 9. Physical Specifications .........................................................................................................................................57
Table 10. Environmental Specifications ..............................................................................................................................57
Table 11. Power Specifications ..........................................................................................................................................58
Table 12. MDI Pin Signals (10 or 100 Mbps) ......................................................................................................................58
Table 13. MDI-X Pin Signals (10 or 100 Mbps) ..................................................................................................................59
Table 14. Pin Signals (1000 Mbps) .....................................................................................................................................59
Table 15. Fiber Type ..........................................................................................................................................................60
Table 16. AT-MMC2000 Fiber-Optic Port Specifications ....................................................................................................60
Table 17. AT-MMC200 Fiber-Optic Port Specifications ......................................................................................................61
Table 18. AT-MMC2000LX Fiber-Optic Port Specifications ...............................................................................................61
Table 19. AT-MMC200LX Fiber-Optic Port Specifications .................................................................................................61
Table 20. AT-MMCR WLMT Kit Contents ...........................................................................................................................63

List of Tables
10

11
Preface
This preface contains the following sections:
“Symbol Conventions” on page 12
“Contacting Allied Telesis” on page 13
This guide contains the installation instructions for the following Mini
Switching Media Converters.
AT-MMC2000/SC
AT-MMC2000/ST
AT-MMC2000/SP
AT-MMC2000/LC
AT-MMC2000LX/LC
AT-MMC2000LX/SC
AT-MMC2000/T
AT-MMC200/SC
AT-MMC200/ST
AT-MMC200/LC
AT-MMC200LX/SC
AT-MMC200LX/ST

12
Symbol Conventions
This document uses the following conventions:
Note
Notes provide additional information.
Caution
Cautions inform you that performing or omitting a specific action
may result in equipment damage or loss of data.
Warning
Warnings inform you that performing or omitting a specific action
may result in bodily injury.
Warning
Laser warnings inform you that an eye and skin hazard exists due to
the presence of a Class 1 laser device.

MMC2000/200 Series Mini Switching Media Converter Installation Guide
13
Contacting Allied Telesis
If you need assistance with this product, you may contact Allied Telesis
technical support by going to the Support & Services section of the Allied
Telesis web site at www.alliedtelesis.com/support. You can find links for
the following services on this page:
Helpdesk (Support Portal) - Log onto Allied Telesis interactive
support center to search for answers to your questions in our
knowledge database, check support tickets, learn about Return
Merchandise Authorizations (RMAs), and contact Allied Telesis
technical experts.
Product Documents - View the most recent installation guides, user
guides, software release notes, white papers and data sheets for
your product.
Warranty - View a list of products to see if Allied Telesis warranty
applies to the product you purchased and register your warranty.
Allied Telesis Helpdesk - Contact a support representative.
For sales or corporate contact information, select your region and country,
then go to www.alliedtelesis.com/contact.

14

15
Chapter 1
Overview
This chapter contains the following sections:
“Introduction” on page 16
“Features” on page 20
“LEDs” on page 24
“V2 and V3 Series Media Converters” on page 27
“V2 Series Media Converters” on page 29
“V3 Series Media Converters” on page 30
“Smart MissingLink™ (SML)” on page 31
“Missing Link (ML)” on page 34
“Reset the Media Converter” on page 36

Chapter 1: Overview
16
Introduction
The MMC2000/200 Series Mini Switching Media Converters are designed
to extend the distance of your network by interconnecting LAN devices
that are physically separated by large distances.
The MMC2000/200 Series Mini Switching Media Converters include the
following models:
AT-MMC2000/SC
AT-MMC2000/ST
AT-MMC2000/SP
AT-MMC2000/LC
AT-MMC2000LX/LC
AT-MMC2000LX/SC
AT-MMC2000/T
AT-MMC200/SC
AT-MMC200/ST
AT-MMC200/LC
AT-MMC200LX/SC
AT-MMC200LX/ST
Front Panels Figure 1 illustrates the front panel of the AT-MMC2000/SC,
AT-MMC2000LX/SC, AT-MMC200/SC, and AT-MMC200LX/SC media
converters.
Figure 1. Front Panel for the MMC2000/200 Series Media Converters with
the SC Connector
Base-T
Twisted-Pair Port
Fiber SC TX & RX
Ports
Base-T
Twisted-Pair Port
L/A LED
Fiber Port
L/A LED

MMC2000/200 Series Mini Switching Media Converter Installation Guide
17
Figure 2 illustrates the front panel of the AT-MMC2000/ST,
AT-MMC200/ST, and AT-MMC200LX/ST media converters.
Figure 2. Front Panel for the MMC2000/200 Series Media Converters with
the ST Connector
Figure 3 illustrates the front panel of the AT-MMC2000/LC,
AT-MMC2000LX/LC, and AT-MMC200/LC media converters.
Figure 3. Front Panel for the MMC2000/200 Series Media Converters with
the LC Connector
Fiber ST TX & RX
Ports Fiber Port
L/A LED
Base-T
Twisted-Pair Port
Base-T
Twisted-Pair Port
L/A LED
Base-T
Twisted-Pair Port
Fiber LC TX & RX
Ports
Base-T
Twisted-Pair Port
L/A LED
Fiber Port
L/A LED

Chapter 1: Overview
18
Figure 4 illustrates the front panel of the AT-MMC2000/SP media
converter.
Figure 4. AT-MMC2000/SP Front Panel
Figure 5 illustrates the front panel of the AT-MMC2000/T media converter.
Figure 5. AT-MMC2000/T Front Panel
Fiber SP SFP
Slot
10/100/1000Base-T
Twisted-Pair Port
10/100/1000Base-T
Twisted-Pair Port
L/A LED
Fiber Port
L/A LED
10/100/1000Base-T
Twisted-Pair Port
10/100/1000Base-T
Twisted-Pair Port L/A LED

MMC2000/200 Series Mini Switching Media Converter Installation Guide
19
Back Panel Figure 6 illustrates the back panel of the MMC2000/200 V2 series media
converter.
Figure 6. Media Converter Back Panel of the MMC2000/200 V2 Series
Figure 7 illustrates the back panel of the MMC2000/200 V3 series media
converter.
Figure 7. Media Converter Back Panel of the MMC2000/200 V3 Series
Note
For information on the FORCE 100 F/D and AUTO NEG switch, see
“Auto-Negotiation or 100 Mbps Full-Duplex Mode” on page 22.
Note
For information on SML and ML, see “Smart MissingLink™ (SML)”
on page 31 and “Missing Link (ML)” on page 34.
12 VDC Input
SYS LED
PWR LED
SML On/Off
DIP Switch
100Mbps Full Duplex/Auto Negotiation DIP Switch
12 VDC Input
SYS LED
PWR LED
SML/ML
DIP Switch
100Mbps Full Duplex/Auto Negotiation DIP Switch

Chapter 1: Overview
20
Features
Here are the key features of the MMC2000/200 Series converters:
The media converter provides a smaller-sized space-saving
alternative to connect networks.
The MMC2000/200 Series media converters except the
AT-MMC2000/T model allow enterprises to connect copper
networks to fiber networks, offering a cost-effective method for
integrating fiber-optic cabling into a 10/100/1000 or 10/100 UTP
environment. See Table 1 for the specifications of the ports that
the media converter is equipped with.
The AT-MMC2000/T media converter is equipped with two
twisted-pair (copper) ports that allow enterprises to connect two
networks and double the distance between endpoints by
connecting a 100m Ethernet cable on each port.
Table 1. Port Specifications for the MMC2000/200 Series
Models
Fiber-optic Port
Copper Port
Connector L1 Standard
AT-MMC2000/LC LC
1000Base-SX
10/100/1000Base-T
AT-MMC2000/SC SC
AT-MMC2000/ST ST
AT-MMC2000LX/LC LC
1000Base-LX
AT-MMC2000LX/SC SC
AT-MMC2000/SP SFP slot 100/1000Base-X
AT-MMC200/LC LC
100Base-FXAT-MMC200/SC SC
AT-MMC200/ST ST
AT-MMC200LX/SC SC
100Base-LX
AT-MMC200LX/ST ST