Allied Telesis AT-MMCR18 User manual

613-002372 Rev. A
AT-MMCR18
Media Converter Rack-mount Chassis
Installation Guide

Copyright 2017 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc.
Microsoft and Internet Explorer are registered trademarks of Microsoft Corporation. Netscape Navigator is a registered
trademark of Netscape Communications Corporation. 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”
“Industry Canada”
“Emissions, Immunity and Electrical Safety Standards” on page 4
“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.
Industry Canada
Radiated Energy
This Class A digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada.

4
Emissions, Immunity and Electrical Safety Standards
RFI Emissions FCC Class A, EN55032 Class A, CISPR 22 Class A, C-TICK, VCCI
Warning
In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures. E84
Immunity EN55035, EN61000-3-2, EN61000-3-3
Electrical Safety UL60950-1 (CULUS), EN60950-1 (TUV), RoHS
Translated Safety Statements
Important: The indicates that translations of the safety statement are available in the PDF
document Translated Safety Statements posted on the Allied Telesis website at
alliedtelesis.com/services-and-support.

1
Contents
Preface ..................................................................................................................................................................................3
Safety Symbols Used in this Document ..........................................................................................................................4
Contacting Allied Telesis .................................................................................................................................................5
Chapter 1: Overview ............................................................................................................................................................7
Introduction......................................................................................................................................................................8
Front Panel...............................................................................................................................................................8
Rear Panels .............................................................................................................................................................9
Auxiliary Power Supply Slot .....................................................................................................................................9
Fan Unit..................................................................................................................................................................10
LEDs..............................................................................................................................................................................11
Alarm Out Connector on the Fan Unit ...........................................................................................................................12
Chapter 2: Installation .......................................................................................................................................................13
Setting up the Chassis ..................................................................................................................................................14
Reviewing Safety Precautions.......................................................................................................................................15
Preparing the Site..........................................................................................................................................................18
Unpacking the Package Contents .................................................................................................................................19
Chassis Package ...................................................................................................................................................19
Power Supply Package ..........................................................................................................................................20
Installing the Chassis on a Desktop ..............................................................................................................................22
Installing the Power Supply Unit into the Chassis .........................................................................................................23
Removing the Cover Plate from the Chassis.................................................................................................................25
Installing the Chassis in a 19-inch Equipment Rack......................................................................................................26
What to Prepare .....................................................................................................................................................26
Installing the Chassis in an Equipment Rack .........................................................................................................26
Installing a Media Converter in the Chassis ..................................................................................................................28
Installing a Blank Panel .................................................................................................................................................30
Powering on an AC-Powered Chassis ..........................................................................................................................31
Wiring and Powering on a DC-Powered Chassis ..........................................................................................................32
Chapter 3: Troubleshooting ..............................................................................................................................................37
Appendix A: Technical Specifications .............................................................................................................................39
Physical Specifications..................................................................................................................................................39
Environmental Specifications ........................................................................................................................................39
Electrical Ratings...........................................................................................................................................................39

Contents
2

3
Preface
This guide contains instructions on how to install an AT-MMCR18 Media
Converter Rack-mount Chassis.
This preface contains the following sections:
“Safety Symbols Used in this Document” on page 4
“Contacting Allied Telesis” on page 5

AT-MMCR18 Media Converter Chassis Installation Guide
4
Safety Symbols Used in this Document
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.

Preface
5
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/services-and-support. You
can find links for the following services on this page:
24/7 Online Support — Enter our interactive support center to
search for answers to your product questions in our knowledge
database, to check support tickets, to learn about RMAs, and to
contact Allied Telesis technical experts.
USA and EMEA phone support — Select the phone number that
best fits your location and customer type.
Hardware warranty information — Learn about Allied Telesis
warranties and register your product online.
Replacement Services — Submit a Return Merchandise
Authorization (RMA) request via our interactive support center.
Documentation — View the most recent installation and user
guides, software release notes, white papers, and data sheets for
your products.
Software Downloads — Download the latest software releases for
your managed products.
For sales or corporate information, go to
www.alliedtelesis.com/how-to-buy and select your region.

AT-MMCR18 Media Converter Chassis Installation Guide
6

7
Chapter 1
Overview
This chapter provides information about the AT-MMCR18 Media
Converter Rack-mount Chassis and contains the following sections:
“Introduction” on page 8
“LEDs” on page 11
“Alarm Out Connector on the Fan Unit” on page 12

AT-MMCR18 Media Converter Chassis Installation Guide
8
Introduction
The AT-MMCR18 rack-mount chassis provides rack-mount or desktop
installation for up to 18 AT-MMC series media converters. The chassis is
available in both AC and DC power supply units to install.
Figure 1 shows a fully populated chassis with rack-mount brackets
attached. All products are connected to power through the power supply
and power backplane of the chassis.
Figure 1. Full Populated AT-MMCR18 Chassis with Rack-mount Brackets
Attached
Front Panel Figure 2 shows the front panel of the AT-MMCR18 chassis.
Figure 2. AT-MMCR18 Front Panel
The LEDs on the front provide information about the status of the system,
chassis temperature, power supplies, and fan installed in the rear. For
more information, see “LEDs” on page 11.

Chapter 1: Overview
9
Rear Panels Figure 3 shows the back panels of the chassis with one AC or DC power
supply unit installed. The chassis is not shipped with a power supply unit.
You must install at least one AC or DC power supply unit.
Note
You must purchase the AT-MMCR-PWR-AC or AT-MMCR-PWR-DC
power supply units separately.
Figure 3. Back Panels
Auxiliary Power
Supply Slot
You must purchase and install the AT-MMCR-PWR-A or
AT-MMCR-PWR-DC power supply unit in the PSU1 slot to use the AT-
MMCR18 chassis. The PSU2 slot is for an auxiliary power supply. You can
purchase two power supply units and install one in the PSU1 slot and the
other in the PSU2 slot.
Note
You can install two AC power supply units, two DC power supply
units, or the combination of one AC and one DC power supply units
in the same chassis.
If one power supply fails, the LED of the corresponding power supply unit
on the front panel goes out and the entire power load is shifted to the other
power supply unit. The power supplies are hot-swappable.
Power Supply Slot A Auxiliary Power Supply Slot B
AC Model
DC Model
Power Supply Slot A Auxiliary Power Supply Slot B

AT-MMCR18 Media Converter Chassis Installation Guide
10
Fan Unit The AT-MMCR18 chassis is shipped with the AT-MMCR18FAN unit. This
unit includes two fans: FAN1 and FAN2, as shown in Figure 4.
Figure 4. AT-MMCR18FAN Unit
The fan unit maintains operating temperatures by drawing cooling air into
the chassis. The fan unit has an Alarm Out Connector, which can be
connected to an external alert device. For more information, see “Alarm
Out Connector on the Fan Unit” on page 12.

Chapter 1: Overview
11
LEDs
The AT-MMCR18 chassis have LEDs on the front panel as shown in
Figure 5.
Figure 5. LEDs on the Front Panel
Table 1 describes the LEDs on the front of the AT-MMCR18 chassis.
Table 1. LEDs on the Front Panel
LED Status Description
FAULT
(Red)
On An error occurred on a power supply unit or fan unit.
Off The power supply and fans are operating normally.
TEMP
(Yellow)
On The temperature is outside the specified temperature
range.
(See “Environmental Specifications” on page 39.)
Off The temperature is in the normal operating range.
PSU1
(Green)
On The power supply unit in PSU1 is providing power.
Off The power supply unit in PSU1 is not providing power.
PSU2
(Green)
On The power supply unit in PSU2 is providing power.
Off The power supply unit in PSU2 is not providing power.
FAN1
(Green)
On The FAN1 is operating normally.
Off An error occurred on the FAN1 unit.
FAN2
(Green)
On The FAN2 is operating normally.
Off An error occurred on the FAN2 unit.
FAULT TEMP PSU1 PSU2 FAN1 FAN2

AT-MMCR18 Media Converter Chassis Installation Guide
12
Alarm Out Connector on the Fan Unit
The AT-MMCR18FAN unit is equipped with the 2-pin Alarm Out
connector, which can be connected to an external alert device. You can
use this external device to alert you a fan failure. Here are two examples
of alert devices for the Alarm Out connector:
Strobe light
Buzzer
Note
Alert devices are not available from Allied Telesis.
The Fan unit does not supply power on the Alarm Out circuit. Instead, the
circuit is an on or off dry contact relay. When an alarm condition occurs,
the Fan unit changes the circuit from close (on) to open (off). The circuit
remains open until the alarm is resolved, at which point the Fan unit
automatically closes it again. The processes to resolving alarms can vary.
The external alert device must provide the necessary power for the circuit
and be able to monitor the circuit for when it is closed or open. Here are
the power specifications for the circuit.
48VDC maximum
10mA maximum
For example, the Alarm Out connector is connected to a strobe light as
shown in Figure 6. When the temperature of the Fan unit exceeds the
maximum operating temperature and stops operating, it changes the
circuit from closed to open. This change triggers the strobe light to turn on.
When the temperature of the Fan unit goes down to the normal operating
range and the Fan unit operates normally, it changes the circuit from open
to closed. This change triggers the strobe light to turn off.
Figure 6. Example of Alarm Out Usage on the Fan Unit

13
Chapter 2
Installation
This chapter provides the installation instructions for the AT-MMCR18
chassis and contains the following sections:
“Setting up the Chassis” on page 14
“Reviewing Safety Precautions” on page 15
“Preparing the Site” on page 18
“Unpacking the Package Contents” on page 19
“Installing the Chassis on a Desktop” on page 22
“Installing the Power Supply Unit into the Chassis” on page 23
“Removing the Cover Plate from the Chassis” on page 25
“Installing the Chassis in a 19-inch Equipment Rack” on page 26
“Installing a Media Converter in the Chassis” on page 28
“Installing a Blank Panel” on page 30
“Powering on an AC-Powered Chassis” on page 31
“Wiring and Powering on a DC-Powered Chassis” on page 32

AT-MMCR18 Media Converter Chassis Installation Guide
14
Setting up the Chassis
The AT-MMCR18 chassis can be used on a desktop or mounted on a 19-
inch equipment rack.
To set up the chassis to install media converters, do the following steps:
1. “Reviewing Safety Precautions” on page 15
2. “Preparing the Site” on page 18
3. “Unpacking the Package Contents” on page 19
4. “Installing the Chassis on a Desktop” on page 22
5. “Installing the Power Supply Unit into the Chassis” on page 23
6. “Removing the Cover Plate from the Chassis” on page 25
7. Do one of the following steps:
To set up the chassis on a desktop, continue to Step 8.
To set up the chassis on an equipment rack, go to “Installing the
Chassis in a 19-inch Equipment Rack” on page 26.
8. “Installing a Media Converter in the Chassis” on page 28
9. Do one of the following steps for connecting the power supply:
For the AC power supply, “Powering on an AC-Powered Chassis”
on page 31.
For the DC power supply, “Wiring and Powering on a DC-Powered
Chassis” on page 32.

Chapter 2: Installation
15
Reviewing Safety Precautions
Please review the following safety precautions before you begin to install
the chassis or any of its components.
Note
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 and on the
documentation CD shipped with this product
Warning
Do not work on equipment or cables during periods of lighting
activity. E2
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord. E3
Warning
Class I Equipment. This equipment must be earthed. The power
plug must be connected to a properly wired earth ground socket
outlet. An improperly wired socket outlet could place hazardous
voltages on accessible metal parts. E4
Note
Pluggable Equipment. The socket outlet shall be installed near the
equipment and shall be easily accessible. E5
Caution
Air vents must not be blocked and must have free access to the
room ambient air for cooling. E6
Warning
Operating Temperature. This product is designed for a maximum
ambient temperature of 50 degrees C. E7

AT-MMCR18 Media Converter Chassis Installation Guide
16
Note
All Countries: Install product in accordance with local and National
Electrical Codes. E8
Warning
As a safety precaution, install a circuit breaker with a minimum value
of 15 Amps between the equipment and the DC power source.
Always connect the wires to the LAN equipment first before you
connect the wires to the circuit breaker. Do not work with HOT feeds
to avoid the danger of physical injury from electrical shock. Always
be sure that the circuit breaker is in the OFF position before
connecting the wires to the breaker. E9
Warning
Do not strip more than the recommended amount of wire. Stripping
more than the recommended amount can create a safety hazard by
leaving exposed wire on the terminal block after installation. E10
Warning
When installing this equipment, always ensure that the frame
ground connection is installed first and disconnected last. E11
Warning
Check to see if there are any exposed copper strands coming from
the installed wire. When this installation is done correctly there
should be no exposed copper wire strands extending from the
terminal block. Any exposed wiring can conduct harmful levels of
electricity to persons touching the wires. E12
Note
This system works with positive grounded or negative grounded DC
systems. E13
Warning
Only trained and qualified personnel are allowed to install or to
replace this equipment. E14
Warning
For centralized DC power connection, install only in a restricted
access area. E23