Allied Telesis AT-X550-18XSPQm Service Manual

x550 Series
Stackable 10Gigabit Intelligent Access Ethernet Switches
AlliedWare Plus™ v5.4.8-0.2 AT-x550-18XTQ
AT-x550-18XSQ AT-x550-18XSPQm
Installation Guide for Stand-alone Switches
613-002431 Rev. B
Copyright 2018 Allied Telesis, Inc.
All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. Allied Telesis, VCStack, 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.
Electrical Safety and Emissions Standards
Laser Safety EN60825
This product meets the following standards.
U.S. 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
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.
RFI Emissions: FCC Class A, EN55032 Class A, EN61000-3-2, EN61000-3-3, VCCI Class A, C-TICK, CE
Warning: In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.
EMC (Immunity): EN55024 Electrical Safety: EN60950-1 (TUV), UL 60950-1 (
CULUS
)
3
Translated Safety Statements
Important: Safety statements that have the symbol are translated into multiple languages in the Translated Safety Statements document at www.alliedtelesis.com/support.
4

Contents

Preface ...............................................................................................................................................................................11
Document Conventions .......................................................................................................................................................12
Contacting Allied Telesis .....................................................................................................................................................13
Chapter 1: Overview ........................................................................................................................................................ 15
Front and Rear Panels ........................................................................................................................................................16
Management Panel .............................................................................................................................................................18
Features ..............................................................................................................................................................................19
x550 Models......... ... .. ...................................................................................................................................................19
1Gbps and 10Gbps Twisted Pair Ports............... ... ......................................................................................................19
1/2.5/5/10Gbps Twisted Pair Ports....................................................................................... ... .....................................19
Power Over Ethernet....................................................................................................................................................20
1Gbps SFP or 10Gbps SFP+ Transceiver Slots..........................................................................................................20
40Gbps QSFP+ Transceiver Slots...............................................................................................................................20
LEDs.............................................................................................................................................................................21
Installation Options.......................................................................................................................................................21
Management Software and Interfaces .........................................................................................................................21
Management Methods..................................................................................................................................................21
1Gbps/10Gbps Twisted Pair Ports on the AT-x550-18XTQ Switch.....................................................................................22
Cable Requirements.....................................................................................................................................................22
LEDs.............................................................................................................................................................................23
1/2.5/5/10Gbps Twisted Pair Ports on the AT-x550-18XSPQm Switch...............................................................................25
Cable Requirements.....................................................................................................................................................25
LEDs.............................................................................................................................................................................27
PoE LEDs.....................................................................................................................................................................28
Power Over Ethernet on the AT-x550-18XSPQm Switch........................................... .........................................................30
PoE Standards.............................................................................................................................................................30
Powered Device Classes .............................................................................................................................................30
Power Budget...............................................................................................................................................................31
Port Prioritization..........................................................................................................................................................31
Wiring Implementation..................................................................................................................................................32
SFP+ Transceiver Slots on the AT-x550-18XSQ and AT-x550-18XSPQm Switches .......................................................
SFP and SFP+ Transceivers........................................................................................................................................33
LEDs.............................................................................................................................................................................33
QSFP+ Transceiver Slots....................................................................................................................................................35
QSFP+ Transceivers....................................................................................................................................................35
Breakout Cables...........................................................................................................................................................35
Port Numbering ................................ ... ...................................................................... ...................................................36
LEDs.............................................................................................................................................................................36
eco-friendly Button...............................................................................................................................................................38
VCStack Feature............................... ... ... .................................... ..................................... ...................................................39
Switch ID LED .....................................................................................................................................................................40
USB Port..............................................................................................................................................................................42
Console Port........................................................................................................................................................................43
Power Supply ......................................................................................................................................................................44
Software and Hardware Releases.......................................................................................................................................45
..33
Chapter 2: Beginning the Installation ............................................................................................................................47
Reviewing Safety Precautions.............................................................................................................................................48
Choosing a Site for the Switch ............................................................................................................................................52
5
Contents
Unpacking the AT-x550-18XTQ or AT-x550-18XSQ Switch...............................................................................................53
Unpacking the AT-x550-18XSPQm Switch.........................................................................................................................56
Chapter 3: Installing the Switch on a Table or in an Equipment Rack .......................................................................59
Installing the Switch on a Table or Desktop........................................................................................................................60
Overview of Installing the AT-x550-18XTQ and AT-x550-18XSQ Switches in an Equipment Rack................................... 61
Installing the AT-x550-18XTQ or AT-x550-18XSQ Switch in an Equipment Rack with the AT-RKMT-J14 Brackets......... 63
Required Items..................................................................................................... ....................................................... 63
Switch Orientations in the Equipment Rack.................................................................................................................63
Installing the Switch..................................................................................................................................................... 65
Installing the AT-x550-18XTQ or AT-x550-18XSQ Switch in an Equipment Rack with the AT-RKMT-J15 Bracket........... 68
Required Items..................................................................................................... ....................................................... 68
Installing the Switch..................................................................................................................................................... 68
Installing the AT-x550-18XSPQm Switch in an Equipment Rack....................................................................................... 74
Required Items..................................................................................................... ....................................................... 74
Switch Orientations in the Equipment Rack.................................................................................................................74
Installing the Switch..................................................................................................................................................... 75
Chapter 4: Installing the Switch on a Wall .....................................................................................................................77
Switch Orientations on a Wall............................................................................................................................................. 78
Installation Guidelines......................................................................................................................................................... 79
Tools and Material.......................................................................................................................................................79
Plywood Base for a Wall with Wooden Studs..................................................................................................................... 81
Installing a Plywood Base................................................................................................................................................... 83
Installing the Switch on a Plywood Base ........................................................................................
Installing the Switch on a Concrete Wall............................................................................................................................. 87
.................................... 84
Chapter 5: Powering On the Switch ...............................................................................................................................91
Powering On the Switch......................................................................................................................................................92
Monitoring the Initialization Processes................................................................................................................................95
Chapter 6: Configuring the Switch for Stand-alone Operations .................................................................................99
Determining the Stand-alone or Stacking Status of the Switch ........................................................................................ 100
Starting a Local Management Session.............................................................................................................................101
Disabling the VCStack Feature.........................................................................................................................................103
Configuring QSFP+ Transceiver Slots 17 and 21 for Breakout Cables............................................................................ 105
Saving Your Changes and Rebooting the Switch.............................................................................................................106
Specifying Ports in the Command Line Interface for Stand-alone Switches..................................................................... 107
Chapter 7: Cabling the Networking Ports ....................................................................................................................109
Cabling Twisted Pair Ports on AT-x550-18XTQ and AT-x550-18XSPQm Switches........................................................110
Guidelines to Handling SFP, SFP+, and QSFP+ Transceivers........................................................................................111
Installing 1Gbps SFP or 10Gbps SFP+ Transceivers in AT-x550-18XSQ and AT-x550-18XSPQm Switches ................ 112
Installing AT-SP10TW Direct Connect Twinax Cables in AT-x550-18XSQ and AT-x550-18XSPQm Switches............... 116
Installing AT-QSFPSR4 or AT-QSFPLR4 Transceivers in QSFP+ Slots .........................................................................118
Installing AT-QSFPCU Cables in QSFP+ Slots................................................................................................................ 119
Chapter 8: Troubleshooting ..........................................................................................................................................121
Appendix A: Technical Specifications .........................................................................................................................125
Physical Specifications ........................................................................................................
Environmental Specifications............................................................................................................................................ 127
Power Specifications......................................................................................................................................................... 128
Certifications.....................................................................................................................................................................129
RJ-45 Twisted Pair Port Pinouts.......................................................................................................................................130
RJ-45 Style Serial Console Port Pinouts.......................................................................................................................... 131
............................................. 126
6

Figures

Figure 1: Front Panels of the x550 Series Switches.............................................................................................................16
Figure 2: Back Panels ..........................................................................................................................................................17
Figure 3: Management Panel ...............................................................................................................................................18
Figure 4: Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-x550-18XTQ, Switch..........................................23
Figure 5: Link and Activity LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-18XSPQm, Switch....................................27
Figure 6: PoE LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-18XSPQm, Switch.......................................................28
Figure 7: Link and Activity LEDs for the 1Gbps SFP and 10Gbps Slots on the AT-x550-18XSQ and
AT-x550-18XSPQm Switches...............................................................................................................................................33
Figure 8: QSFP+ to SFP+ Breakout Cable...........................................................................................................................35
Figure 9: LEDs for the 40Gbps QSFP+ Slots....................................................................................................................... 36
Figure 10: Switch ID LED.....................................................................................................................................................40
Figure 11: Switch ID LED.....................................................................................................................................................40
Figure 12: Switch ID LEDs in Low Power Mode...................................................................................................................41
Figure 13: AT-x550-18XTQ or AT-x550-18XSQ Switch Shipping Box.................................................................................53
Figure 14: Accessory Kit.......................................................................................................................................................54
Figure 15: Accessory Kit (Continued)...................................................................................................................................55
Figure 16: AT-x550-18XSPQm Switch Shipping Box...........................................................................................................56
Figure 17: Accessory Items..................................................................................................................................................57
Figure 18: AT-RKMT-J14 Brackets and Switch....................................................................................................................61
Figure 19: AT-RKMT-J15 Bracket........................................................................................................................................61
Figure 20: AT-RKMT-J15 Bracket with Switches..................................................................................................................62
Figure 21: Bracket Holes......................................................................................................................................................63
Figure 22: AT-RKMT-J14 Bracket Holes..............................................................................................................................64
Figure 23: Switch Orientations with the Front Panel Facing the Front of the Equipment Rack............................................64
Figure 24: Switch Orientations with the Rear Panel Facing the Front of the Equipment Rack............................................. 65
Figure 25: Attaching the Handles to the AT-RKMT-J14 Brackets ........................................................................................66
Figure 26: Attaching the AT-RKMT-J14 Brackets to the Switch...........................................................................................66
Figure 27: Installing the Switch in an Equipment Rack..........................................................................
Figure 28: Installing the AT-RKMT-J15 Bracket in the Equipment Rack..............................................................................68
Figure 29: Loosening the Two Thumbscrews on the Front of the AT-RKMT-J15 Bracket...................................................69
Figure 30: Sliding Out the Tray from the AT-RKMT-J15.......................................................................................................69
Figure 31: Removing the Plastic Feet from the Bottom Panel of the Switch........................................................................70
Figure 32: Placing a Switch in the AT-RKMT-J15 Bracket...................................................................................................71
Figure 33: Securing the Switch to the AT-RKMT-J15 Bracket..............................................................................................71
Figure 34: Sliding in the Bracket Tray................................................................................................................................... 72
Figure 35: Tightening the Two Thumbscrews on the AT-RKMT-J15 Bracket......................................................................73
Figure 36: Bracket Holes on the AT-x550-18XSPQm Switch...............................................................................................74
Figure 37: AT-x550-18XSPQm Switch Orientations in an Equipment Rack.........................................................................75
Figure 38: Example of Attaching the Brackets to the AT-x550-18XSPQm Switch...............................................................76
Figure 39: Installing the Switch in an Equipment Rack.........................................................................................................76
Figure 40: Positioning the Switches on the Wall...................................................................................................................78
Figure 41: Switch on the Wall with a Plywood Base.............................................................................................................81
Figure 42: Steps to Installing the Switch with a Plywood Base ............................................................................................82
Figure 43: Installing the Wall Brackets .................................................................................................................................84
Figure 44: Installing the Brackets on the AT-x550-18XSPQm Switch..................................................................................85
Figure 45: Securing the Switch to the Plywood Base...........................................................................................................86
Figure 46: Marking the Locations of the Bracket Holes on a Concrete Wall ................................................... .....................88
Figure 47: Installing the Switch on a Concrete Wall.............................................................................................................89
Figure 48: Installing the Power Cord Retaining Clip.............................................................................................................92
...............................67
7
Figures
Figure 49: Connecting the AC Power Cord...........................................................................................................................93
Figure 50: Lowering the Power Cord Retaining Clip.............................................................................................................93
Figure 51: Connecting the Power Cord to an AC Power Source..........................................................................................94
Figure 52: Switch Initialization Messages.............................................................................................................................95
Figure 53: Switch Initialization Messages (Continued) .........................................................................................................96
Figure 54: Switch Initialization Messages (Continued) .........................................................................................................97
Figure 55: Connecting the Management Cable to the Console Port ..................................................................................101
Figure 56: User Exec Mode Prompt....................................................................................................................................102
Figure 57: SHOW STACK Command.................................................................................................................................103
Figure 58: Moving to the Global Configuration Mode.........................................................................................................104
Figure 59: Confirmation Prompt for the NO STACK ENABLE Command..........................................................................104
Figure 60: Disabling VCStack.............................................................................................................................................104
Figure 61: Returning to the Privileged Exec Mode .............................................................................................................106
Figure 62: Saving the Changes with the WRITE Command...............................................................................................106
Figure 63: PORT Parameter in the Command Line Interface.............................................................................................107
Figure 64: Removing the Dust Plug from an SFP Slot........................................................................................................112
Figure 65: Installing an SFP Transceiver............................................................................................................................113
Figure 66: Removing the Dust Cover from an SFP or SFP+ Transceiver..........................................................................114
Figure 67: Positioning the SFP or SFP+ Handle in the Upright Position ............................................................................114
Figure 68: Connecting a Fiber Optic Cable to an SFP or SFP+ Transceiver ........................................................ .............115
Figure 69: Installing AT-SP10TW Cables ...........................................................................................................................116
Figure 70: Removing the Dust Cover from a QSFP+ Transceiver Slot ..............................................................................119
Figure 71: Sliding the AT-QSFPCU Cable into the Slot......................................................................................................119
Figure 72: Pin Layout for the RJ-45 Twisted Pair Ports (Front View).................................................................................130
8

Tables

Table 1: Basic Features .......................................................................................................................................................19
Table 2: Twisted Pair Ports on the AT-x550-18XTQ Switch ................................................................................................22
Table 3: Cable Requirements for the 1Gbps/10Gbps Twisted Pair Ports on the AT-x550-18XTQ Switch ..........................22
Table 4: Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-x550-18XTQ Switch ...........................................23
Table 5: 1/2.5/5/10Gbps Twisted Pair Ports on the AT-x550-18XSPQm Switch .................................................................25
Table 6: Cable Requirements for the PoE+ Ports on the AT-x550-18XSPQm Switch, at 1Gbps or 2.5Gbps .....................26
Table 7: Cable Requirements for the PoE+ Ports on the AT-x550-18XSPQm Switch, at 5Gbps or 10Gbps ......................26
Table 8: Link and Activity LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-18XSPQm Switch .....................................28
Table 9: PoE LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-18XSPQm Switch .........................................................29
Table 10: IEEE Powered Device Classes ............................................................................................................................30
Table 11: Link and Activity Status LEDs for the 1Gbps and 10Gbps Ports on the AT-x550-18XTQ or
AT-x550-18XSPQm Switch .................................................................................................................................................34
Table 12: Link and Activity Status LEDs for the 40Gbps QSFP+ Transceiver Slots with QSFP+ Transceivers .................36
Table 13: Link and Activity Status LEDs for the 40Gbps QSFP+ Transceiver Slots with Breakout Cables ........................37
Table 14: Software and Hardware Releases .......................................................................................................................45
Table 15: PORT Parameter Format ................................................................................................................................... 107
Table 16: Product Dimensions ...........................................................................................................................................126
Table 17: Product Weights ................................................................................................................................................126
Table 18: Ventilation Requirements ................................................................................................................................... 126
Table 19: Environmental Specifications .............................................................................................................................127
Table 20: Maximum Power Consumptions ........................................................................................................................128
Table 21: Input Voltages ....................................................................................................................................................128
Table 22: Heat Dissipation ................................................................................................................................................128
Table 23: Product Certifications .........................................................................................................................................129
Table 24: Pin Signals for the Twisted Pair Ports ...............................................................................................................130
Table 25: RJ-45 Style Serial Console Port Pin Signals .........................................................................
............................131
9
Tables
10

Preface

Note
This guide contains the installation instructions for the x550 Series of stackable 10 Gigabit, Layer 3 Ethernet switches. This preface contains the following sections:
“Document Conventions” on page 12“Contacting Allied Telesis” on page 13
This guide explains how to install the switches as stand-alone units. For instructions on how to build a stack with Virtual Chassis Sta cking (VCStack Chassis Stacking.
), refer to the x550 Series Installation Guide for Virtual
11
Preface
Note
Caution
Warning

Document Conventions

This document uses the following conventions:
Notes provide additional information.
Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data.
Warnings inform you that performing or omitting a specific action may result in bodily injury.
12

Contacting Allied Telesis

If you need assistance with this product, you can 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.
x550 Series Installation Guide for Stand-alone Switches
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.
13
Preface
14

Chapter 1

Note

Overview

This chapter contains the following sections:
“Front and Rear Panels” on page 16“Management Panel” on page 18“Features” on page 19“1Gbps/10Gbps Twisted Pair Ports on the AT-x550-18XTQ Switch” on
page 22
“1/2.5/5/10Gbps T wisted Pair Port s on the AT-x550-18XSPQm Switch”
on page 25
“Power Over Ethernet on the AT-x550-18XSPQm Switch” on page 30“SFP+ Transceiver Slots on the AT-x550-18XSQ and AT-x550-
18XSPQm Switches” on page 33
“QSFP+ Transceiver Slots” on page 35“eco-friendly Button” on page 38“VCStack Feature” on page 39“Switch ID LED” on page 40“USB Port” on page 42“Console Port” on page 43“Power Supply” on page 44“Software and Hardware Releases” on page 45
This guide explains how to install the switches as stand-alone units. For instructions on how to build a stack with Virtual Chassis Stacki ng (VCStack
), refer to the x550 Series Installation Guide for Virtual
Chassis Stacking.
15
Chapter 1: Overview
AT-x550-18XSQ
AT-x550-18XTQ
1Gbps or 10Gbps Ports
Management
Panel
40Gbps QSFP+
Transceiver Slots
1Gbps SFP or 10Gbps SFP+
Management
Panel
40Gbps QSFP+
Transceiver Slots
Transceiver Slots
Management
Panel
40Gbps QSFP+
Transceiver Slots
1Gbps SFP or 10Gbps
SFP+ Transceiver Slots
1/2.5/5/10Gbps
PoE+ Ports
AT-x550-18XSPQm
PoE LEDs

Front and Rear Panels

The front panels on the x550 Series switches are shown in Figure 1.
Figure 1. Front Panels of the x550 Series Switches
The rear panels are shown in Figure 2 on page 17.
16
x550 Series Installation Guide for Stand-alone Switches
AC Power
AC Power
AT-x550-18XTQ AT-x550-18XSQ
AT-x550-18XSPQm
Supply Connector
Supply Connector
Figure 2. Back Panels
17
Chapter 1: Overview
Console Management
eco-friendly
Button
Switch
Port
ID LED
USB Port

Management Panel

Figure 3 identifies the components on the management panel.
Figure 3. Management Panel
18

Features

x550 Models Table 1 lists the basic features.
x550 Series Installation Guide for Stand-alone Switches
The Allied Telesis x550 Series switches are stackable 10 Gigabit, Layer 3 Ethernet switches. The following sections list the features:
Table 1. Basic Features
1/2.5/5/10
Model
AT-x550-18XTQ 0 16 0 2 Yes AT-x550-18XSQ 0 0 16 2 Yes AT-x550-18XSPQm 8082Yes
Gbps PoE+
Twisted Pair
Ports
The following items provide additional information:
The 40Gbps QSFP+ slots 17 and 21 can be used as regular
Ethernet networking ports or stacking ports with the VCStack feature.
When used as regular networking ports the 40Gbps QSFP+ slots
17 and 21 support 40Gbps transceivers or breakout cables, which convert the slots into four 10Gbps ports.
The switches come with one pre-installed power supply. It is not
field-replaceable.
1Gbps and
10Gbps
Twisted Pair
Ports
1Gbps SFP
and 10Gbps
SFP+
Transceiver
Slots
40Gbps
QSFP+
Transceiver
Slots
VCStack
1Gbps and
10Gbps Twisted
Pair Ports
1/2.5/5/10Gbps
Twisted Pair
Ports
The sixteen twisted pair ports on the AT-x550-18XTQ Switch have these features:
1Gbps or 10Gbps operation100 meters (328 feet) maximum operating distance per portAuto-Negotiation for speedFull-duplex mode onlyPort Link/Activity (L/A) LEDs
The eight twisted pair ports on the AT-x550-18XSPQm Switch have these features:
1Gbps, 2.5Gbps, 5Gbps, or 10Gbps operation100 meters (328 feet) maximum operating distance per port
19
Chapter 1: Overview
Auto-Negotiation for speedFull-duplex mode onlyPort Link/Activity (L/A) LEDsPower over Ethernet (PoE+)
Power Over
Ethernet
1Gbps SFP or
10Gbps SFP+
Transceiver Slots
Here are the basic features of PoE+ on the twisted pair ports on the AT-x550-18XSPQm Switch:
Supported on ports 1 to 8.Supports PoE (15.4 watts maximum) and PoE+ (30 watts
maximum) powered devices
240W power budgetSupports powered device classes 0 to 4Port prioritizationMode A wiringIEEE802.3at compliant
The sixteen 1Gbps/10Gbps transceiver slots in the AT-x550-18XSQ Switch support the following types of transceivers:
1Gbps SX/LX SFP transceivers10Gbps SR/LR SFP+ fiber optic transceivers10Gbps AT-SP10TW direct connect twinax cables with SFP+
transceiver-style connectors
40Gbps QSFP+
Transceiver Slots
20
These items provide additional information:
They do not support 100Mbps transceivers.They support full-duplex mode only.
SFP and SFP+ transceivers must be purchased separately. For a list of supported transceivers, refer to the product data sheet on the Allied Telesis web site.
The two 40Gbps QSFP+ transceiver slots support the following types of transceivers:
AT-QSFPSR4 transceiver - 150m using multi-mode fiber optic
cable
AT-QSFPLR4 transceiver - 10k with single-mode fiber optic cableAT-QSFP1CU and AT-QSFP3CU direct connect cables in lengths
of 1 and 3 meters, respectively
AT-QSFP-4SFP10G-3CU and AT-QSFP-4SFP10G-5CU breakout
cables in lengths of 3 and 5 meters, respectively
Note
The QSFP+ slots are initially configured as stacking slots for the VCStack feature. If you will use the switch as a stand-alone unit, you can use the slots with transceivers as regular Ethernet networking ports by disabling the VCStack feature. The instructions are provided in Chapter 6, “Configuring the Switch for Stand-alone Operations” on page 99.
QSFP+ transceivers must be purchased separately. For a list of supported transceivers, refer to the product data sheet on the Allied Telesis web site.
For instructions on the VCStack feature, refer to the x550 Series Installation Guide for Virtual Chassis Stacking.
LEDs Here are the port LEDs:
Link/activity LEDs for the twisted pair ports on AT-x550-18XTQ and
AT-x550-18XSPQm Switches
x550 Series Installation Guide for Stand-alone Switches
Installation
Options
Management
Software and
Interfaces
Link/activity LEDs for the SFP and SFP+ transceiver slots on the
AT-x550-18XSQ Switch
Link/activity LEDs for the QSFP+ transceiver slotsPoE+ LEDs on the AT-x550-18XSPQm SwitchStack ID number LEDeco-friendly button turns off the LEDs to conserve electricity
Here are the installation options:
Desk or tabletop19-inch equipment rackWooden or concrete wall
Here are the management software and interfaces:
AlliedWare Plus Management SoftwareCommand line interfaceWeb browser interface
Management
Methods
Here are the methods for managing the switches:
Local management through the Console portRemote Telnet or Secure Shell managementRemote HTTP or HTTPS web browser managementSNMPv1, v2c, and v3
21
Chapter 1: Overview
Note

1Gbps/10Gbps Twisted Pair Ports on the AT-x550-18XTQ Switch

The specifications of the sixteen twisted pair ports on the AT-x550-18XTQ Switch are listed in Table 2.
Table 2. Twisted Pair Ports on the AT-x550-18XTQ Switch
Specification Description
Port Speed 1Gbps or 10Gbps
You can set port speed with Auto­Negotiation or manually. The default is
Auto-Negotiation. Duplex Mode Full-duplex only Maximum Distance 100 meters (328 feet) Connector 8-pin RJ-45
Cable
Requirements
The ports must be set to Auto-Negotiation to function at 1Gbps. The network devices connected to the ports must be IEEE 802.3u compliant.
The cable requirements for the ports are listed in Table 3.
Table 3. Cable Requirements for the 1Gbps/10Gbps Twisted Pair Ports
on the AT-x550-18XTQ Switch
Cable Type 1Gbps 10Gbps
Standard TIA/EIA 568-B-compliant Category 3 shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.
Standard TIA/EIA 568-A-compliant Category 5 shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Standard TIA/EIA 568-B-compliant Enhanced Category 5 (Cat 5e) shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
No No
No No
Yes No
22
x550 Series Installation Guide for Stand-alone Switches
Top Port LED Bottom Port LED
Table 3. Cable Requirements for the 1Gbps/10Gbps Twisted Pair Ports
on the AT-x550-18XTQ Switch (Continued)
Cable Type 1Gbps 10Gbps
Standard TIA/EIA 568-B-compliant
Yes No
Category 6 shielded cabling. Standard TIA/EIA 568-B-compliant
Yes Yes
Category 6a shielded cabling.
Refer to Table 24 on page 130 for the port pinouts of the twisted pair ports.
LEDs Each 1Gbps/10Gbps twisted pair port on the AT-x550-18XTQ Switch. has
an LED that displays link and activity information. The LED is shown in Figure 4.
Figure 4. Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-
The states of the link and activity LEDs are described in Table 4.
Table 4. Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-
State Description
Solid Green The port has established a 10Gbps link to
Flashing Green The port is transmitting or receiving data
Solid Amber The port has established a 1Gbps link to a
x550-18XTQ, Switch
x550-18XTQ Switch
a network device.
at 10Gbps.
network device.
23
Chapter 1: Overview
Table 4. Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-
x550-18XTQ Switch (Continued)
State Description
Flashing Amber The port is transmitting or receiving data
at 1Gbps. Off Possible causes of this state are listed
here:
- The port has not established a link with
another network device.
- The LEDs are turned off. To turn on the
LEDs, use the eco-friendly button.
24
x550 Series Installation Guide for Stand-alone Switches
Note

1/2.5/5/10Gbps Twisted Pair Ports on the AT-x550-18XSPQm Switch

The specifications for twisted pair ports 1 to 8 on the AT-x550-18XSPQm Switch are listed in Table 5.
Table 5. 1/2.5/5/10Gbps Twisted Pair Ports on the AT-x550-18XSPQm
Switch
Specification Description
Port Speed 1Gbps, 2.5Gbps, 5Gbps, or 10Gbps
You can set port speed with Auto­Negotiation or manually. Guidelines are given here:
- 1Gbps and 10Gbps can be set either manually or with Auto-Negotiation.
- 2.5Gbps and 5Gbps must be set with Auto-Negotiation.
Cable
Requirements
The default port setting is Auto-
Negotiation. Duplex Mode Full-duplex only Maximum Distance 100 meters (328 feet) Power over Ethernet PoE (15.4 watts maximum) and PoE+ (30
watts maximum) Power Budget 240W PoE Mode Mode A Connector 8-pin RJ-45
The network devices connected to the ports must be IEEE 802.3u compliant.
The cable requirements for the PoE+ twisted pair ports on the AT-x550­18XSPQm Switch are listed in Table 6 on page 26 and Table 7 on page 26.
25
Chapter 1: Overview
Table 6. Cable Requirements for the PoE+ Ports on the AT-x550-18XSPQm Switch, at 1Gbps
or 2.5Gbps
1Gbps 2.5Gbps
Cable Type
Standard TIA/EIA 568-B­compliant Category 3 shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.
Standard TIA/EIA 568-A­compliant Category 5 shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Standard TIA/EIA 568-B­compliant Enhanced Category 5 (Cat 5e) shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Standard TIA/EIA 568-B­compliant Category 6, 6a, or higher shielded cabling.
Non-
PoE
PoE PoE+
Non-
PoE
PoE PoE+
No No No No No No
Yes Yes No No No No
Yes Yes Yes Yes Yes No
Yes Yes Yes Yes Yes Yes
Table 7. Cable Requirements for the PoE+ Ports on the AT-x550-18XSPQm Switch, at 5Gbps
or 10Gbps
5Gbps 10Gbps
Cable Type
Standard TIA/EIA 568-B-
Non-
PoE
PoE PoE+
Non-
PoE
PoE PoE+
No No No No No No compliant Category 3 shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.
26
x550 Series Installation Guide for Stand-alone Switches
Top Port LED
Bottom Port LED
Table 7. Cable Requirements for the PoE+ Ports on the AT-x550-18XSPQm Switch, at 5Gbps
or 10Gbps
5Gbps 10Gbps
Cable Type
Standard TIA/EIA 568-A­compliant Category 5 shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Standard TIA/EIA 568-B­compliant Enhanced Category 5 (Cat 5e) shielded or unshielded cabling with 100 ohm impedance and a frequency of 100 MHz.
Standard TIA/EIA 568-B­compliant Category 6, 6a, or higher shielded cabling.
LEDs This section explains the LEDs for the 1/2.5/5/10Gbps twisted pair ports
on the AT-x550-18XSPQm Switch. Each port has one LED that displays link and activity information. The LEDs are shown in Figure 5.
Non-
PoE
PoE PoE+
Non-
PoE
PoE PoE+
No No No No No No
No No No No No No
Yes Yes Yes Yes Yes Yes
Figure 5. Link and Activity LEDs for the 1/2.5/5/10Gbps Ports on the
AT-x550-18XSPQm, Switch
The states of the link and activity LEDs are described in Table 8 on page 28.
27
Chapter 1: Overview
Table 8. Link and Activity LEDs for the 1/2.5/5/10Gbps Ports on the
AT-x550-18XSPQm Switch
State Description
Solid Green The port has established a 2.5Gbps,
5Gbps, or 10Gbps link to a network device.
Flashing Green The port is transmitting or receiving data
at 2.5Gbps, 5Gbps or 10Gbps.
Solid Amber The port has established a 1Gbps link to a
network device.
Flashing Amber The port is transmitting or receiving data
at 1Gbps.
Off Possible causes of this state are listed
here:
- The port has not established a link with another network device.
- The LEDs are turned off. To turn on the LEDs, use the eco-friendly button.
PoE LEDs This section explains the PoE LEDs for the 1/2.5/5/10Gbps twisted pair
ports on the AT-x550-18XSPQm Switch. Each port has one LED. Refer to Figure 6.
Figure 6. PoE LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-
18XSPQm, Switch
28
The states of the PoE LEDs are described in Table 9 on page 29.
x550 Series Installation Guide for Stand-alone Switches
Table 9. PoE LEDs for the 1/2.5/5/10Gbps Ports on the AT-x550-
18XSPQm Switch
State Description
Green The switch is delivering power to a powered
device (PD) on the port.
Solid Amber The switch has shut down PoE on the port
because of a fault condition.
Off This LED state can result from the following
conditions:
- The port is not connected to a PD.
- The PD is powered off.
- The port is disabled in the management software.
- PoE is disabled on the port.
- The LEDs are turned off. To turn on the LEDs, use the eco-friendly button.
29
Chapter 1: Overview

Power Over Ethernet on the AT-x550-18XSPQm Switch

The AT-x550-18XSPQm Switch features PoE on the eight 1/2.5/5/10Gbps twisted pair ports. With PoE, the switch supplies DC power to network devices over the same twisted pair cables that carry the network traffic.
PoE can make it easier to install networks. The selection of a location for a network device is often limited by whether there is a power source nearby. This often limits equipment placement or requires the added time and cost of having additional electrical sources installed. But with PoE, you can install PoE-compatible devices wherever they are needed without having to worry about whether there are power sources nearby.
A device that provides PoE to network devices, such as the AT-x550­18XSPQm Switch, is referred to as power sourcing equipment (PSE). It functions as a central power source for other network devices.
Devices that receive their power from a PSE are called powered devices (PD). Examples include wireless access points, IP telephones, webcams, and even other Ethernet switches.
The switch automatically determines whether or not devices connected to its ports are powered devices. Ports that are connected to network nodes that are not powered devices (that is, devices that receive their power from another power source) function as regular Ethernet ports, without PoE. The PoE feature remains activated on the ports but no power is delivered to the devices.
PoE Standards The AT-x550-18XSPQm Switch supports these PoE standards:
PoE (IEEE 802.3af): This standard provides up to 15.4 watts at the
switch port for powered devices that require up to 12.95 watts.
PoE+ (IEEE 802.3at): This standard provides up to 30.0 watts at
the switch port for powered devices that require up to 25.5 watts.
Powered Device
Classes
Powered devices are grouped into the five classes listed in Table 10 on page 30. The classes are based on the amount of power the devices require. The switches support all five classes.
Table 10. IEEE Powered Device Classes
Maximum Power
Class
Output from a Switch
Port
PD Power Range
30
0 15.4W 0.44W to 12.95W 1 4.0W 0.44W to 3.84W
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