Allied Telesis AT-FS980M/28DP User manual

613-002229 Rev. C
FS980M Series
FAST ETHERNET MANAGED SWITCHES
AT-FS980M/9 AT-FS980M/9PS
AT-FS980M/18 AT-FS980M/18PS
AT-FS980M/28 AT-FS980M/28PS AT-FS980M/28DP
AT-FS980M/52 AT-FS980M/52PS
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.
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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, EN55022 Class A, EN55032 Class A, CISPR 22 Class A,
CISPR 32 Class A, VCCI, RCM, CE
Warning
In a domestic environment this product may cause radio interference in which case the user
may be required to take adequate measures.  E84
EMC (Immunity) EN55024, EN61000-3-2, EN61000-3-3
Electrical Safety UL60950-1 (CULUS), EN60950-1 (TUV)
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/support.

5
Contents
Preface ..................................................................................................................................................................................7
Document Conventions ...................................................................................................................................................8
Contacting Allied Telesis .................................................................................................................................................9
Chapter 1: Overview ..........................................................................................................................................................11
Product Overview ..........................................................................................................................................................12
AT-FS980M/9 Switch .............................................................................................................................................12
AT-FS980M/9PS Switch ........................................................................................................................................13
AT-FS980M/18 Switch ...........................................................................................................................................14
AT-FS980M/18PS Switch ......................................................................................................................................15
AT-FS980M/28 Switch ...........................................................................................................................................16
AT-FS980M/28PS Switch ......................................................................................................................................17
AT-FS980M/28DP Switch ......................................................................................................................................18
AT-FS980M/52 Switch ...........................................................................................................................................19
AT-FS980M/52PS Switch ......................................................................................................................................20
SFP Slots ...............................................................................................................................................................21
Stacking Ports ........................................................................................................................................................21
Power Saving .........................................................................................................................................................21
Installation Options.................................................................................................................................................22
MAC Address Table ...............................................................................................................................................22
Management Software and Interfaces ...................................................................................................................22
Management Methods ...........................................................................................................................................22
Other Features .......................................................................................................................................................22
SFP Modules.................................................................................................................................................................23
Supported SFP Modules ........................................................................................................................................23
Guidelines for Using the AT-SPTX Module............................................................................................................23
Model Naming Conventions ..........................................................................................................................................24
10/100Base-TX Twisted Pair Ports ...............................................................................................................................25
Basic Features .......................................................................................................................................................25
Backpressure .........................................................................................................................................................25
Speed.....................................................................................................................................................................25
Duplex Mode ..........................................................................................................................................................25
Wiring Configuration...............................................................................................................................................26
Maximum Distance.................................................................................................................................................26
Power Over Ethernet..............................................................................................................................................26
Cable Requirements ..............................................................................................................................................27
Port Pinouts............................................................................................................................................................27
10/100/1000Base-T Twisted Pair Ports.........................................................................................................................28
Basic Features .......................................................................................................................................................28
Speed.....................................................................................................................................................................28
Duplex Mode ..........................................................................................................................................................28
Wiring Configuration...............................................................................................................................................29
Maximum Distance.................................................................................................................................................29
Power Over Ethernet..............................................................................................................................................29
Cable Requirements ..............................................................................................................................................30
Port Pinouts............................................................................................................................................................30
Combo Ports .................................................................................................................................................................31
Power Over Ethernet.....................................................................................................................................................32
PoE Standards .......................................................................................................................................................32
Power Budget.........................................................................................................................................................32

Contents
6
Powered Device Classes........................................................................................................................................33
Port Prioritization ....................................................................................................................................................34
LEDs..............................................................................................................................................................................36
System LEDs..........................................................................................................................................................36
10/100Base-TX Twisted Pair Port LEDs ................................................................................................................37
10/100/1000Base-TX Twisted Pair Port LEDs .......................................................................................................38
SFP Slot LED .........................................................................................................................................................39
Console Port..................................................................................................................................................................40
Chapter 2: Installing the Switch .......................................................................................................................................41
Reviewing Safety Precautions.......................................................................................................................................42
Choosing a Site for the Switch ......................................................................................................................................47
Unpacking the Switch ....................................................................................................................................................48
Installing the Switch on a Table or Desktop...................................................................................................................50
Installing the Switch on a Wall.......................................................................................................................................51
Guidelines for Installing the Switch on a Wall.........................................................................................................51
What to Prepare for Installation..............................................................................................................................52
Installing the Switch on a Wall................................................................................................................................52
Installing the Switch in an Equipment Rack...................................................................................................................56
What to Prepare for Installation..............................................................................................................................56
Installing the Switch in an Equipment Rack............................................................................................................56
Chapter 3: Cabling the Networking Ports ........................................................................................................................59
Cabling the Twisted Pair Ports ......................................................................................................................................60
Twisted Pair Ports ..................................................................................................................................................60
Installing Optional SFP Transceivers.............................................................................................................................62
Chapter 4: Powering On the Switch .................................................................................................................................65
Powering On the Switch ................................................................................................................................................66
Chapter 5: Troubleshooting ..............................................................................................................................................69
Appendix A: Technical Specifications .............................................................................................................................73
Physical Specifications ..................................................................................................................................................73
Environmental Specifications.........................................................................................................................................74
PoE Power Specifications .............................................................................................................................................75
Power Specifications .....................................................................................................................................................75
RJ-45 Twisted Pair Port Pinouts....................................................................................................................................76
RJ-45 Style Serial Console Port Pinouts .......................................................................................................................77

7
Preface
This guide contains the installation instructions for the FS980M Series of
Fast Ethernet switches. The switch models included in this manual are:
AT-FS980M/9
AT-FS980M/9PS
AT-FS980M/18
AT-FS980M/18PS
AT-FS980M/28
AT-FS980M/28PS
AT-FS980M/28DP
AT-FS980M/52
AT-FS980M/52PS
The preface contains the following sections:
“Document Conventions” on page 8
“Contacting Allied Telesis” on page 9

Preface
8
Document 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.

FS980M Series Fast Ehternet Managed Switches Installation Guide
9
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:
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/
purchase and select your region.

Preface
10

11
Chapter 1
Overview
This chapter contains the following sections:
“Product Overview” on page 12
“SFP Modules” on page 23
“Model Naming Conventions” on page 24
“10/100Base-TX Twisted Pair Ports” on page 25
“10/100/1000Base-T Twisted Pair Ports” on page 28
“Combo Ports” on page 31
“Power Over Ethernet” on page 32
“LEDs” on page 36
“Console Port” on page 40

Chapter 1: Overview
12
Product Overview
The FS980M Series switch is a managed Fast Ethernet switch with SFP
slots. This series switch provides a simple solution to replace an edge
switch in small and medium-sized enterprises.
The eco-friendly feature automatically saves power consumption on each
port when the port has not established a link.
AT-FS980M/9
Switch
The AT-FS980M/9 switch is equipped with:
8 10/100Mbps twisted pair ports
One 10/100/1000Mbps twisted pair port (Combo port)
1 SFP slot (Combo port)
1 console port
Note
The 10/100/1000Mbps twisted pair port and SFP slot form one pair
of combo ports. For more information, see “Combo Ports” on
page 31.
See Figure 1 for the port layout of the AT-FS980M/9 switch.
Figure 1. AT-FS980M/9 Switch Front Panel
The AT-FS980M/9 switch has an internal power supply with a single AC
power supply socket on the rear panel as shown in Figure 2.
Figure 2. AT-FS980M/9 Switch Rear Panel
10/100Base-TX Ports Console Port
10/100/1000Base-TX
Ports SFP slot

FS980M Series Fast Ehternet Managed Switches Installation Guide
13
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
AT-FS980M/9PS
Switch
The AT-FS980M/9PS switch is equipped with:
8 PoE+ supported 10/100Mbps twisted pair ports
One 10/100/1000Mbps twisted pair port (Combo port)
1 SFP slot (Combo port)
1 console port
Note
The 10/100/1000Mbps twisted pair port and SFP slot form one pair
of combo ports. For more information, see “Combo Ports” on
page 31.
See Figure 3 for the port layout of the AT-FS980M/9PS switch.
Figure 3. AT-FS980M/9PS Switch Front Panel
The AT-FS980M/9PS switch has an internal power supply with a single AC
power supply socket on the rear panel as shown in Figure 4.
Figure 4. AT-FS980M/9PS Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
10/100Base-TX Ports Console Port
10/100/1000Base-TX
Ports SFP slot

Chapter 1: Overview
14
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
AT-FS980M/18
Switch
The AT-FS980M/18 switch is equipped with:
16 10/100Mbps twisted pair ports
2 10/100/1000Mbps twisted pair ports (Combo ports)
2 SFP slots (Combo ports)
1 console port
Note
The 10/100/1000Mbps twisted pair ports and SFP slots form two
pairs of combo ports. For more information, see “Combo Ports” on
page 31.
See Figure 5 for the port layout of the AT-FS980M/18 switch.
Figure 5. AT-FS980M/18 Switch Front Panel
The AT-FS980M/18 switch has an internal power supply with a single AC
power supply socket on the rear panel as shown in Figure 6.
Figure 6. AT-FS980M/18 Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
10/100Base-TX
Ports
Console Port
10/100/1000Base-TX
Ports SFP slots

FS980M Series Fast Ehternet Managed Switches Installation Guide
15
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
AT-FS980M/
18PS Switch
The AT-FS980M/18PS switch is equipped with:
16 PoE+ supported 10/100Mbps twisted pair ports
2 10/100/1000Mbps twisted pair ports (Combo ports)
2 SFP slots (Combo ports)
1 console port
Note
The 10/100/1000Mbps twisted pair ports and SFP slots form two
pairs of combo ports. For more information, see “Combo Ports” on
page 31.
See Figure 7 for the port layout of the AT-FS980M/18PS switch.
Figure 7. AT-FS980M/18PS Switch Front Panel
The AT-FS980M/18PS switch has an internal power supply with a single
AC power supply socket on the rear panel as shown in Figure 8.
Figure 8. AT-FS980M/18PS Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
10/100Base-TX
Ports
Console Port
10/100/1000Base-TX
Ports
SFP slots

Chapter 1: Overview
16
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
AT-FS980M/28
Switch
The AT-FS980M/28 switch is equipped with:
24 10/100Mbps twisted pair ports
4 SFP slots
1 console port
Note
Two SFP slots can be used as stacking ports. For more information,
see “Stacking Ports” on page 21.
See Figure 9 for the port layout of the AT-FS980M/28 switch.
Figure 9. AT-FS980M/28 Switch Front Panel
The AT-FS980M/28 switch has an internal power supply with a single AC
power supply socket on the rear panel as shown in Figure 10.
Figure 10. AT-FS980M/28 Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
10/100Base-TX SFP Slots
Ports Console Port

FS980M Series Fast Ehternet Managed Switches Installation Guide
17
AT-FS980M/
28PS Switch
The AT-FS980M/28PS switch is equipped with:
24 PoE+ supported 10/100Mbps twisted pair ports
4 SFP slots
1 console port
Note
Two SFP slots can be used as stacking ports. For more information,
see “Stacking Ports” on page 21.
See Figure 11 for the port layout of the AT-FS980M/28PS switch.
Figure 11. AT-FS980M/28PS Switch Front Panel
The AT-FS980M/28PS switch has an internal power supply with a single
AC power supply socket on the rear panel as shown in Figure 12.
Figure 12. AT-FS980M/28PS Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
10/100Base-TX SFP Slots
PoE Ports
Console Port

Chapter 1: Overview
18
AT-FS980M/
28DP Switch
The AT-FS980M/28DP switch is equipped with:
24 PoE+ supported 10/100Mbps twisted pair ports
1 console port
2 AC power supply units
4 SFP slots
Note
Two SFP slots can be used as stacking ports. For more information,
see “Stacking Ports” on page 21.
See Figure 13 for the port layout of the AT-FS980M/28DP switch.
Figure 13. AT-FS980M/28DP Switch Front Panel
The AT-FS980M/28DP switch has an internal power supply with two AC
power supply sockets on the rear panel as shown in Figure 14.
Figure 14. AT-FS980M/28DP Switch Rear Panel
Retainer clips are included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
10/100Base-TX SFP Slots
PoE Ports Console Port

FS980M Series Fast Ehternet Managed Switches Installation Guide
19
Redundant Power Supply
The AT-FS980M/28DP switch is equipped with two AC power supply units.
When both AC power supply units are plugged in, the power system is
redundant. When one power supply unit fails, the other starts running
seamlessly so that the switch’s operation is not interrupted.
AT-FS980M/52
Switch
The AT-FS980M/52 switch is equipped with:
48 10/100Mbps twisted pair ports
4 SFP slots
1 console port
Note
Two SFP slots can be used as stacking ports. For more information,
see “Stacking Ports” on page 21.
See Figure 15 for the port layout of the AT-FS980M/52 switch.
Figure 15. AT-FS980M/52 Switch Front Panel
The AT-FS980M/52 switch has an internal power supply with a single AC
power supply socket on the rear panel as shown in Figure 16 on page 19.
Figure 16. AT-FS980M/52 Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
10/100Base-TX SFP Slots
Ports
Console Port

Chapter 1: Overview
20
Warning
Power cord is used as a disconnection device. To de-energize
equipment, disconnect the power cord.  E3
AT-FS980M/
52PS Switch
The AT-FS980M/52PS switch is equipped with:
48 10/100Mbps twisted pair ports including 24 PoE+ supported
ports
4 SFP slots
1 console port
Note
Two SFP slots can be used as stacking ports. For more information,
see “Stacking Ports” on page 21.
See Figure 17 for the port layout of the AT-FS980M/52PS switch.
Figure 17. AT-FS980M/52PS Switch Front Panel
The AT-FS980M/52PS switch has an internal power supply with a single
AC power supply socket on the rear panel as shown in Figure 18.
Figure 18. AT-FS980M/52PS Switch Rear Panel
A retainer clip is included in the accessory kit. To install the retainer clip,
see “Powering On the Switch” on page 66.
10/100Base-TX SFP Slots
PoE Ports Console Port