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 SafetyEN60825
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.
Front and Rear Panels ........................................................................................................................................................16
Features ..............................................................................................................................................................................19
Management Software and Interfaces .........................................................................................................................21
LEDs for the 1Gbps/10Gbps Twisted Pair Ports..........................................................................................................28
LEDs for the 1Gbps SFP and 10Gbps SFP+ Transceiver Slots ..................................................................................29
LEDs for the 40Gbps QSFP+ Transceiver Slots..........................................................................................................30
Switch ID LED..............................................................................................................................................................32
USB Port..............................................................................................................................................................................34
Power Supply ......................................................................................................................................................................36
Chapter 2: Beginning the Installation ............................................................................................................................37
Choosing a Site for the Switch ............................................................................................................................................42
Unpacking the Switch..........................................................................................................................................................43
Chapter 3: Installing the Switch on a Table or in an Equipment Rack .......................................................................47
Installing the Switch on a Table or Desktop....................................................................................
Overview of Installing the Switch in an Equipment Rack.....................................................................................................49
Installing the Switch in an Equipment Rack with the AT-RKMT-J14 Brackets ....................................................................51
Required Items for the AT-RKMT-J14 Brackets...........................................................................................................51
Switch Orientations in the Equipment Rack.................................................................................................................51
Installing the Switch with the AT-RKMT-J14 Brackets .................................................................................................53
Installing the Switch in an Equipment Rack with the AT-RKMT-J15 Bracket......................................................................56
Required Items for the AT-RKMT-J15 Bracket.............................................................................................................56
Installing the Switch with the AT-RKMT-J15 Bracket ...................................................................................................56
Chapter 4: Installing the Switch on a Wall ....................................................................................................................63
Switch Orientations on a Wall..............................................................................................................................................64
Tools and Material........................................................................................................................................................65
Plywood Base for a Wall with Wooden Studs......................................................................................................................67
.....................................48
5
Contents
Installing a Plywood Base................................................................................................................................................... 69
Installing the Switch on a Plywood Base ............................................................................................................................ 70
Installing the Switch on a Concrete Wall............................................................................................................................. 73
Chapter 5: Powering On the Switch ...............................................................................................................................77
Powering On the Switch......................................................................................................................................................78
Monitoring the Initialization Processes................................................................................................................................81
Chapter 6: Configuring the Switch for Stand-alone Operations .................................................................................85
Determining the Stand-alone or Stacking Status of the Switch .......................................................................................... 86
Starting a Local Management Session............................................................................................................................... 87
Disabling the VCStack Feature........................................................................................................................................... 89
Configuring QSFP+ Transceiver Slots 17 and 21 for Breakout Cables.............................................................................. 91
Saving Your Changes and Rebooting the Switch............................................................................................................... 92
Specifying Ports in the Command Line Interface for Stand-alone Switches.......................................................................93
Chapter 7: Cabling the Networking Ports ......................................................................................................................95
Cabling the 1Gbps/10Gbps Ports in the AT-x550-18XTQ Switch....................................................................................... 96
Guidelines to Handling SFP, SFP+, and QSFP+ Transceivers.......................................................................................... 97
Installing 1Gbps SFP or 10Gbps SFP+ Transceivers in the AT-x550-18XSQ Switch........................................................ 98
Installing AT-SP10TW Direct Connect Twinax Cables in the AT-x550-18XSQ Switch .................................................... 101
Installing AT-QSFPSR4 or AT-QSFPLR4 Transceivers in QSFP+ Slots ................................................................
Installing AT-QSFPCU Cables in QSFP+ Slots................................................................................................................ 104
Power Specifications......................................................................................................................................................... 114
RJ-45 Twisted Pair Port Pinouts.......................................................................................................................................116
RJ-45 Style Serial Console Port Pinouts.......................................................................................................................... 117
6
Figures
Figure 1: Front Panels of the AT-x550-18XTQ and AT-x550-18XSQ Switches...................................................................16
Figure 2: Back Panel............................................................................................................................................................17
Figure 4: QSFP+ to SFP+ Breakout Cable...........................................................................................................................24
Figure 5: Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-x550-18XTQ, Switch..........................................28
Figure 6: Link and Activity LEDs for the 1Gbps SFP and 10Gbps Slot+ Slots on the AT-x550-18XSQ Switch ...................29
Figure 7: LEDs for the 40Gbps QSFP+ Slots....................................................................................................................... 30
Figure 8: Switch ID LED.......................................................................................................................................................32
Figure 9: Switch ID LED.......................................................................................................................................................32
Figure 10: Switch ID LEDs in Low Power Mode...................................................................................................................33
Figure 11: AT-x550-18XTQ or AT-x550-18XSQ Switch Shipping Box.................................................................................43
Figure 19: Switch Orientations with the Front Panel Facing the Front of the Equipment Rack............................................52
Figure 20: Switch Orientations with the Rear Panel Facing the Front of the Equipment Rack............................................. 53
Figure 21: Attaching the Handles to the AT-RKMT-J14 Brackets ........................................................................................54
Figure 22: Attaching the AT-RKMT-J14 Brackets to the Switch...........................................................................................54
Figure 23: Installing the Switch in an Equipment Rack.........................................................................................................55
Figure 24: Installing the AT-RKMT-J15 Bracket in the Equipment Rack..............................................................................56
Figure 25: Loosening the Two Thumbscrews on the Front of the AT-RKMT-J15 Bracket...................................................57
Figure 26: Sliding Out the Tray from the AT-RKMT-J15.......................................................................................................57
Figure 27: Removing the Plastic Feet from the Bottom Panel of the Switch........................................................................58
Figure 28: Placing a Switch in the AT-RKMT-J15 Bracket...................................................................................................59
Figure 29: Securing the Switch to the AT-RKMT-J15 Bracket..............................................................................................59
Figure 30: Sliding in the Bracket Tray.........................................................................................
Figure 31: Tightening the Two Thumbscrews on the AT-RKMT-J15 Bracket......................................................................61
Figure 32: Positions of the Switch on the Wall.....................................................................................................................64
Figure 33: Switch on the Wall with a Plywood Base.............................................................................................................67
Figure 34: Steps to Installing the Switch with a Plywood Base ............................................................................................68
Figure 35: Installing the Wall Brackets .................................................................................................................................71
Figure 36: Securing the Switch to the Plywood Base...........................................................................................................72
Figure 37: Marking the Locations of the Bracket Holes on a Concrete Wall ................................................... .....................74
Figure 38: Installing the Switch on a Concrete Wall.............................................................................................................75
Figure 39: Installing the Power Cord Retaining Clip.............................................................................................................78
Figure 40: Connecting the AC Power Cord ..........................................................................................................................79
Figure 41: Lowering the Power Cord Retaining Clip.............................................................................................................79
Figure 42: Connecting the Power Cord to an AC Power Source..........................................................................................80
Figure 46: Connecting the Management Cable to the Console Port ....................................................................................87
Figure 47: User Exec Mode Prompt.....................................................................................................................................88
Figure 48: SHOW STACK Command...................................................................................................................................89
Figure 49: Moving to the Global Configuration Mode...........................................................................................................90
.......................................... 60
7
Figures
Figure 50: Confirmation Prompt for the NO STACK ENABLE Command............................................................................90
Figure 52: Returning to the Privileged Exec Mode ...............................................................................................................92
Figure 53: Saving the Changes with the WRITE Command.................................................................................................92
Figure 54: PORT Parameter in the Command Line Interface...............................................................................................93
Figure 55: Removing the Dust Plug from an SFP Slot..........................................................................................................98
Figure 56: Installing an SFP Transceiver..............................................................................................................................99
Figure 57: Removing the Dust Cover from an SFP or SFP+ Transceiver............................................................................99
Figure 58: Positioning the SFP or SFP+ Handle in the Upright Position ............................................................................100
Figure 59: Connecting a Fiber Optic Cable to an SFP or SFP+ Transceiver ........................................................ .............100
Figure 61: Removing the Dust Cover from a Slot on the AT-SBx81XLEM/Q2 Expansion Module.....................................104
Figure 62: Sliding the AT-QSFPCU Cable into the Slot......................................................................................................105
Table 1: Basic Features .......................................................................................................................................................19
Table 2: Twisted Pair Ports on the AT-x550-18XTQ Switch ................................................................................................22
Table 3: Link and Activity LEDs on the 1Gbps/10Gbps Ports on the AT-x550-18XTQ Switch ............................................28
Table 4: Link and Activity Status LEDs on the 1Gbps and 10Gbps Ports on the AT-x550-18XTQ Switch .........................29
Table 5: Link and Activity Status LEDs for the 40Gbps QSFP+ Transceiver Slots with QSFP+ Transceivers ...................31
Table 6: Link and Activity Status LEDs for the 40Gbps QSFP+ Transceiver Slots with Breakout Cables ..........................31
Table 7: PORT Parameter Format .......................................................................................................................................93
Table 12: Maximum Power Consumptions ........................................................................................................................114
Table 16: Pin Signals for 1Gbps or 10Gbps ......................................................................................................................116
Table 17: RJ-45 Style Serial Console Port Pin Signals .....................................................................................................117
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 of switches with the Virtual
Chassis Stacking (VCStack
Installation Guide for Virtual Chassis Stacking.
™) feature, refer to the x550 Series
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 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.
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 page 22
“SFP+ Transceiver Slots” on page 23
“QSFP+ Transceiver Slots” on page 24
“eco-friendly Button” on page 26
“VCStack Feature” on page 27
“LEDs” on page 28
“USB Port” on page 34
“Console Port” on page 35
“Power Supply” on page 36
This guide explains how to install the switches as stand-alone units.
For instructions on how to build a stack of switches with the Virtual
Chassis Stacking (VCStack
™) feature, 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
Management
Panel
40Gbps QSFP+
Transceiver Slots
1Gbps SFP or 10Gbps SFP+ Transceiver Slots
Front and Rear Panels
The front panels of the x550 Series switches are shown in Figure 1.
Figure 1. Front Panels of the AT-x550-18XTQ and AT-x550-18XSQ
The rear panel of the switches is shown in Figure 2 on page 17.
Switches
16
x550 Series Installation Guide for Stand-alone Switches
AC Power Supply Connector
Figure 2. Back Panel
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 ModelsTable 1 lists the basic features of the x550 Switches.
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 lists the features of the switches:
Table 1. Basic Features
AT-x550-18XTQ1602Yes
AT-x550-18XSQ0162Yes
1Gbps/10Gbps
Twisted Pair
Ports
1Gbps and
Model
Additional information is listed here:
The 40Gbps QSFP+ slots can be used as either regular networking
ports or stacking ports with the VCStack feature.
When used as regular networking ports the 40Gbps QSFP+ slots
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.
The sixteen twisted pair ports on the AT-x550-18XTQ Switch have these
features:
1Gbps or 10Gbps operation
10Gbps
Twisted Pair
Ports
1Gbps SFP
and 10Gbps
SFP+
Transceiver
Slots
40Gbps
QSFP+
Transceiver
Slots
VCStack
1Gbps SFP or
10Gbps SFP+
Transceiver Slots
100 meters (328 feet) maximum operating distance per port
Auto-Negotiation for speed
Full-duplex mode only
Port Link/Activity (L/A) LEDs
The sixteen 1Gbps/10Gbps transceiver slots in the AT-x550-18XSQ
Switch support the following types of transceivers:
Additional information about the transceiver slots is given here:
They do not support 100Mbps transceivers.
They support full-duplex mode only.
SFP or SFP+ transceivers must be purchased separately. For a list of
supported transceivers, refer to the AT-x550-18XSQ data sheet on the
Allied Telesis web site.
40Gbps QSFP+
Transceiver Slots
The two 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 cable
AT-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
The QSFP+ slots are initially configured as stacking slots for the
VCStack feature. If you plan to use the switch as a stand-alone unit,
you can use the slots with transceivers as regular networking ports
by disabling the VCStack feature. The instructions are provided in
Chapter 6, “Configuring the Switch for Stand-alone Operations” on
page 85.
QSFP+ transceivers must be purchased separately. For a list of supported
transceivers, refer to the x550 product sheet on the Allied Telesis web site.
For instructions on the VCStack feature, refer to the x550 Series Installation Guide for Virtual Chassis Stacking.
LEDsHere are the port LEDs:
Link/activity LEDs for the twisted pair ports on the AT-x550-18XTQ
Switch
Link/activity LEDs for the SFP and SFP+ transceiver slots on the
AT-x550-18XSQ Switch
Link/activity LEDs for the QSFP+ transceiver slots
Stack ID number LED
eco-friendly button turns off the LEDs to conserve electricity
20
x550 Series Installation Guide for Stand-alone Switches
Installation
Options
Management
Software and
Interfaces
Management
Methods
Here are the installation options for the switches:
Desk or tabletop
19-inch equipment rack
Wooden or concrete wall
Here are the management software and interfaces:
AlliedWare Plus Management Software
Command line interface
Web browser interface
Here are the methods for managing the switches:
Local management through the Console port
Remote Telnet or Secure Shell management
Remote HTTP or HTTPS web browser management
SNMPv1, v2c, and v3
21
Chapter 1: Overview
Note
1Gbps/10Gbps Twisted Pair Ports
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
StateDescription
Port Speed1Gbps or 10Gbps
Duplex ModeFull-duplex only
Cabling1Gbps - Standard TIA/EIA 568-B-
You can set port speed with AutoNegotiation or manually. The default is
Auto-Negotiation.
compliant Category 6 shielded cabling or
better.
10Gbps -Standard TIA/EIA 568-Ccompliant Category 6a shielded cabling or
better.
Maximum Distance100 meters (328 feet)
Connector8-pin RJ-45
The ports must be set to Auto-Negotiation to function at 1000 Mbps
and are not compatible with devices that are not IEEE 802.3u
compliant.
Refer to Table 16 on page 116 for the port pinouts of the twisted pair
ports.
22
SFP+ Transceiver Slots
The sixteen SFP+ transceiver slots on the AT-x550-18XSQ Switch suppo rt
the following types of 1Gbps SFP or 10Gbps SFP+ transceivers:
1Gbps SX/LX SFP transceivers
10Gbps SR/LR fiber optic transceivers
10Gbps AT-SP10TW direct connect twinax cables with SFP+
Additional information about the SFP+ transceiver slots is listed here:
They do not support 100Mbps-FX transceivers.
They support full-duplex mode only.
You can set the port speeds with Auto-Negotiation or manually.
x550 Series Installation Guide for Stand-alone Switches
transceiver-style connectors
The default is Auto-Negotiation.
SFP or SFP+ transceivers must be purchased separately. For a list of
supported transceivers, refer to the x550 Series product sheet on the
Allied Telesis web site.
23
Chapter 1: Overview
Note
QSFP+ Transceiver Slots
The switches have two QSFP+ transceiver slots that support the following
types of 40Gbps transceivers:
and has an operating range of 2m (6.6 ft) to 10km (6.2 mi).
AT-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
You can use QSFP+ transceivers as standard networking ports or as
stacking ports for the VCStack feature.
The QSFP+ transceiver slots are initially configured as stacking
slots for the VCStack feature. You have to disable the VCStack
feature to use the transceiver slots as regular networking ports. For
instructions, refer to Chapter 6, “Configuring the Switch for Standalone Operations” on page 85. For instructions on how to install the
switches in a VCStack, refer to the x550 Series Installation Guide for Virtual Chassis Stacking.
For a list of supported QSFP+ transceivers, refer to the x550 Series data
sheet on the Allied Telesis web site.
When the switch is operating as a stand-alone device and the VCStack
feature is disabled, the QSFP+ transceiver slots support the AT-QSFP4SFP10G-3CU and AT-QSFP-4SFP10G-5CU breakout cables. Refer to
Figure 4. A breakout cable converts a QSFP+ transceiver slot from one
40Gbps port to four 10Gbps ports. You have to disable the VCStack
feature on the switch to use the QSFP+ transceiver slots with breakout
cables.
Figure 4. QSFP+ to SFP+ Breakout Cable
The QSFP+ slots are numbered 17 and 21 on the front panel. Here are the
guidelines to port numbering:
24
x550 Series Installation Guide for Stand-alone Switches
A QSFP+ transceiver in slot 17 has the port number 17.
A QSFP+ transceiver in slot 21 has the port number 21.
The four 10Gbps transceivers on a breakout cable in slot 17 have
the port numbers 17, 18, 19, and 20.
The four 10Gbps transceivers on a breakout cable in slot 21 have
the port numbers 21, 22, 23, and 24.
25
Chapter 1: Overview
Note
eco-friendly Button
The eco-friendly button on the front panel of the switch is used to toggle
the port LEDs on or off. You might turn off the LEDs to conserve electricity
when you are not monitoring the device. You can also toggle the LEDs
with the ECOFRIENDLY LED and NO ECOFRIENDLY LED commands in
the Global Configuration mode of the command line interface of the
AlliedWare Plus management software. The switch is said to be operating
in a low power mode when the LEDs are turned off.
Operating the switch in the low power mode with the LEDs turned off does
not interfere with the network operations of the device.
The management software on the switch has a command that blinks the
LEDs so that you can quickly and easily identify a specific unit among the
devices in an equipment rack. It is the FINDME command. The command
works on the switch even if you turned off the LEDs with the eco-friendly
button or NO ECOFRIENDLY LED command.
The Switch ID LED is always on, but it displays different information
depending on whether the LEDs are on or off. When the LEDs are on, the
ID LED displays the ID number of the switch. When the switch is operating
in the low power mode with the LEDs off, the ID LED indicates whether the
switch is a stand-alone unit or the master or member switch of a VCStack,
as detailed in Figure 10 on page 33.
Before checking or troubleshooting the network connections to the
ports on the switch, you should always check to be sure that the
LEDs are on by either pressing the eco-friendly button or issuing the
ECOFRIENDLY LED and NO ECOFRIENDLY LED commands in
the Global Configuration mode of the command line interface.
26
VCStack Feature
Note
x550 Series Installation Guide for Stand-alone Switches
You can use the switches as stand-alone units or join multiple units
together with the QSFP+ transceiver slots and the VCStack feature. The
switches of a VCStack act as a single virtual unit. They synchronize their
actions so that switching operations, like spanning tree protocols, virtual
LANs, and static port trunks, span across all of the units and ports. Two
advantages of stacks are listed here:
You can manage multiple units simultaneously, which can simplify
network management.
You have more flexibility in how you configure some of the
features. For instance, a static port trunk on a stand-alone switch
can consist of ports from the same switch. In contrast, a static trunk
on a stack can have ports from different switches in the same
stack.
This guide explains how to install the devices as stand-alone units.
For instructions on how to install the switches in a VCStack, refer to
the x550 Series Installation Guide for Virtual Chassis Stacking.
27
Chapter 1: Overview
Top Port LEDBottom Port LED
LEDs
The LEDs are described in the following sections.
LEDs for the
1Gbps/10Gbps
Twisted Pair
Ports
The 1Gbps/10Gbps twisted pair ports on the AT-x550-18XTQ Switch have
one LED that displays link and activity information. The LED is shown in
Figure 5.
Figure 5. Link and Activity LEDs for the 1Gbps/10Gbps Ports on the AT-
x550-18XTQ, Switch
The states of the link and activity LEDs are described in Table 3.
Table 3. Link and Activity LEDs on the 1Gbps/10Gbps Ports on the AT-
x550-18XTQ Switch
28
StateDescription
Solid GreenThe port has established a 10Gbps link to
a network device.
Flashing GreenThe port is transmitting or receiving data
at 10Gbps.
Solid AmberThe port has established a 1Gbps link to a
network device.
Flashing AmberThe port is transmitting or receiving data
at 1Gbps.
x550 Series Installation Guide for Stand-alone Switches
Top Transceiver Slot LEDBottom Transceiver Slot LED
Table 3. Link and Activity LEDs on the 1Gbps/10Gbps Ports on the AT-
x550-18XTQ Switch (Continued)
StateDescription
OffPossible 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.
LEDs for the
1Gbps SFP and
10Gbps SFP+
Transceiver Slots
The 1Gbps SFP and 10Gbps SFP+ transceiver slots on the AT-x55018XSQ Switch have one LED. The LEDs are located between the slots.
Refer to Figure 6.
Figure 6. Link and Activity LEDs for the 1Gbps SFP and 10Gbps Slot+
Slots on the AT-x550-18XSQ Switch
The LED displays link status and activity. The possible LED states are
described in Table 4.
Table 4. Link and Activity Status LEDs on the 1Gbps and 10Gbps Ports o n
the AT-x550-18XTQ Switch
StateDescription
Solid GreenThe transceiver has established a 10Gbps
link to a network device.
Flashing GreenThe transceiver is transmitting or receiving
data in 10Gbps.
29
Chapter 1: Overview
Top Transceiver Slot LEDBottom Transceiver Slot LED
Table 4. Link and Activity Status LEDs on the 1Gbps and 10Gbps Ports o n
the AT-x550-18XTQ Switch (Continued)
StateDescription
Solid AmberThe transceiver has established a 1Gbps
link to a network device.
Flashing AmberThe transceiver is transmitting or receiving
data in 1Gbps.
OffPossible causes of this state are listed
here:
- The slot is empty.
- The transceiver has not established a
link to a network device.
- The LEDs are turned off. To turn on the
LEDs, use the eco-friendly button.
LEDs for the
40Gbps QSFP+
The 40Gbps QSFP+ transceiver slots on the switch have one LED. The
LEDs are located between the slots. Refer to Figure 7.
Transceiver Slots
Figure 7. LEDs for the 40Gbps QSFP+ Slots
The LED displays link and activity status. The LED states when the slots
have QSFP+ transceivers are described in Table 5 on page 31.
30
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