Allied Telesis AT-PWR06, AT-DC2552XS, AT-FAN06 User Manual

AT-DC2552XS

L2 Data Center Switch

Installation Guide

613-001760 Rev. A

Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners.

Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesis, Inc. be liable for any incidental, special, indirect, or consequential damages whatsoever, including but not limited to lost profits, arising out of or related to this manual or the information contained herein, even if Allied Telesis, Inc. has been advised of, known, or should have known, the possibility of such damages.

Electrical Safety and Emissions Standards

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, EN55022 Class A, CISPR 22 Class A, VCCI Class A,

C-TICK

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, EN61000-3-2, EN61000-3-3

Electrical Safety EN60950-1 (TUV), UL 60950-1 (

CULUS

)

Laser Safety EN60825

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 www.alliedtelesis.com.

Preface................................................................................................................................................................................11

Document Conventions ................................................................................................................................................12

Contacting Allied Telesis ..............................................................................................................................................13

Chapter 1: Overview ........................................................................................................................................................ 15

AT-DC2552XS Features ..............................................................................................................................................16

AT-DC2552XS Functions......................................................................................................................................16

AT-DC2552XS Physical Description .....................................................................................................................19

LEDs.............................................................................................................................................................................23

SFP+ Slot LED ......................................................................................................................................................23

QSFP+ Slot LEDs .................................................................................................................................................24

Power/Fault LED ...................................................................................................................................................25

NET MGMT LED ...................................................................................................................................................26

FAN Status LEDs ..................................................................................................................................................27

AC Power LED ......................................................................................................................................................28

Console Port.................................................................................................................................................................29

AT-PWR06 Power Supply Module ...............................................................................................................................30

AT-FAN06 Fan Module ................................................................................................................................................32

Chapter 2: Beginning the Installation ............................................................................................................................ 33

Installation Overview ....................................................................................................................................................34

Reviewing Safety Precautions......................................................................................................................................35

Planning the Installation ...............................................................................................................................................39

Unpacking the Switch...................................................................................................................................................40

AT-DC2552XS Switch...........................................................................................................................................40

AT-PWR06 Power Supply.....................................................................................................................................41

AT-FAN06 Fan Module .........................................................................................................................................42

Chapter 3: Installing the Switch and Modules .............................................................................................................. 43

Installing the Switch on a Desktop ...............................................................................................................................44

Installing the Switch in an Equipment Rack..................................................................................................................45

Installing and Replacing AT-PWR06 Power Supply Module ........................................................................................48

Installing Power Supply Module ............................................................................................................................48

Replacing Power Supply Module ..................................................................................................

Installing Power Supply Blank Cover ....................................................................................................................51

Installing and Replacing AT-FAN06 Fan Module .........................................................................................................52

Installing Fan Module ............................................................................................................................................52

Replacing Fan Module ..........................................................................................................................................54

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables ........................................................................ 55

Installing SFP+ Transceivers and Cables ....................................................................................................................56

General Guidelines ...............................................................................................................................................56

Installing SFP+ Transceiver ..................................................................................................................................57

Installing a SFP+ Direct Attach Cables .................................................................................................................59

Installing QSFP+ Transceivers and Cables..................................................................................................................61

Installing a QSFP+ Transceiver ............................................................................................................................61

Installing a QSFP+ MTHTP Cable ........................................................................................................................63

........................50

Chapter 5: Powering the Switch ..................................................................................................................................... 65

Powering On the Switch ...............................................................................................................................................66

Turn Off the switch .......................................................................................................................................................68

Contents

Chapter 6: Managing the Switch .................................................................................................................................... 69

Local Management ...................................................................................................................................................... 70

Connecting the Console Port ............................................................................................................................... 70

Remote Network Management .................................................................................................................................... 72

NET MGMT Cable Installation.............................................................................................................................. 72

Chapter 7: Troubleshooting ............................................................................................................................................ 75

Appendix A: Technical Specifications ........................................................................................................................... 79

Physical Specifications ................................................................................................................................................ 79

Environmental Specifications....................................................................................................................................... 79

Power Specifications ................................................................................................................................................... 80

Certifications................................................................................................................................................................ 80

Quality and Reliability .................................................................................................................................................. 80

RJ-45 Twisted Pair Port Pinouts.................................................................................................................................. 81

Figures

Figure 1: AT-DC2552XS Front Panel View ..........................................................................................................................19

Figure 2: AT-DC2552XS Rear Panel....................................................................................................................................20

Figure 3: SFP+ Slot LEDs ....................................................................................................................................................23

Figure 4: QSFP+ LEDs.........................................................................................................................................................24

Figure 5: Power/Fault LEDs..................................................................................................................................................25

Figure 6: NET MGMT LEDs..................................................................................................................................................26

Figure 7: FAN Status LEDs ..................................................................................................................................................27

Figure 8: AC Power LED ......................................................................................................................................................28

Figure 9: AT-PWR06 Power Supply Module ........................................................................................................................30

Figure 10: AT-FAN06 Fan Module........................................................................................................................................32

Figure 11: Contents of the AT-DC2552XS Shipping Box .....................................................................................................40

Figure 12: Contents of the AT-PWR06 Power Supply Module Shipping Box.......................................................................41

Figure 13: Contents of the AT-FAN06 Fan Module Shipping Box ........................................................................................42

Figure 14: Attaching the Rubber Feet ..................................................................................................................................44

Figure 15: Possible Bracket Locations .................................................................................................................................45

Figure 16: Attaching the Brackets to Switch.........................................................................................................................46

Figure 17: Mounting the Switch in an Equipment Rack ........................................................................................................47

Figure 18: Loosen Power Supply Captive Screws................................................................................................................48

Figure 19: Insert AT-PWR06 Module Into Chassis...............................................................................................................49

Figure 20: Tighten AT-PWR06 Captive Screws ...................................................................................................................50

Figure 21: Loosen Screws on Fan Blank Cover ...................................................................................................................52

Figure 22: Insert AT-FAN06 Module Into Chassis ................................................................................................................52

Figure 23: Tighten AT-FAN06 Captive Screws.....................................................................................................................53

Figure 24: Removing the Dust Plug from a SFP+ Slot .........................................................................................................57

Figure 25: Handle on SFP Transceiver ................................................................................................................................57

Figure 26: Installing a SFP+ Transceiver .............................................................................................................................58

Figure 27: Removing SFP+ Dust Cover ...............................................................................................................................58

Figure 28: Attaching a Fiber Optic Cable to an SFP+ Transceiver.......................................................................................59

Figure 29: Removing the Dust Plug from a SFP+ Slot .........................................................................................................59

Figure 30: Installing a SFP+ Direct Attach Cable .................................................................................................................60

Figure 31: Removing QSFP+ Slot Dust Cover .....................................................................................................................62

Figure 32: Installing an QSFP+ Transceiver.....................................................................................

Figure 33: Removing QSFP+ Dust Cover ............................................................................................................................63

Figure 34: Attaching a Fiber Optic Cable to an QSFP+ Transceiver ....................................................................................63

Figure 35: Removing QSFP+ Slot Dust Cover .....................................................................................................................64

Figure 36: Installing an QSFP+ MTHTP Cable.....................................................................................................................64

Figure 37: Connecting the Management Cable to the Console Port ....................................................................................70

Figure 38: Connecting the Twisted Pair Cable into the NET MGMT port .............................................................................73

Figure 39: RJ-45 Connector and Port Pin Layout.................................................................................................................81

....................................62

Figures

Table s

Table 1: Twisted Pair Cable Specifications for the NET MGMT Port ..................................................................................22

Table 2: SFP+ Slot LED ......................................................................................................................................................23

Table 3: QSFP+ LED ...........................................................................................................................................................24

Table 4: Power/Fault LED Description .................................................................................................................................25

Table 5: NET MGMT LED Descriptions ...............................................................................................................................26

Table 6: FAN Status LED Descriptions ................................................................................................................................27

Table 7: AC Power LED Description ....................................................................................................................................28

Table 8: Installation Procedures ..........................................................................................................................................34

Table 9: SFP+ Cables .........................................................................................................................................................56

Table 10: QSFP+ Cables .....................................................................................................................................................61

Table 11: Product Dimensions .............................................................................................................................................79

Table 12: Product Weights ..................................................................................................................................................79

Table 13: Environmental Specifications ...............................................................................................................................79

Table 14: AT-PWR06 Input Specifications ..........................................................................................................................80

Table 15: Product Certifications ...........................................................................................................................................80

Table 16: MTBF ...................................................................................................................................................................80

Table 17: Pin Signals for 10 and 100 Mbps .........................................................................................................................81

Table 18: Pin Signals - 1000 Mbps ......................................................................................................................................82

Tables

Preface

This guide contains instructions on how to install the AT-DC2552XS L2 Data Center Switch and the associated power supply and fan modules on a desktop or in a 19” equipment rack.

This preface contains the following sections:

 “Document Conventions” on page 12

 “Contacting Allied Telesis” on page 13

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.

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.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

 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

Chapter 1

Overview

This chapter contains the following sections:

 “AT-DC2552XS Features” on page 16

 “LEDs” on page 23

 “Console Port” on page 29

 “AT-PWR06 Power Supply Module” on page 30

 “AT-FAN06 Fan Module” on page 32

Chapter 1: Overview

AT-DC2552XS Features

The AT-DC2552XS L2 Data Center Switch has a high-density switching fabric (1280 Gbps) in a compact 1 RU chassis. The switch’s functions and physical description are described in the following sections:

AT-DC2552XS

Functions

A list of the AT-DC2552XS switch’s functions is as follows:

Ports

You will find the following network and management ports on the AT-DC2552XS:

 48 SPF+ slots

 4 QSFP+ slots

 1 Console port (USB)

 1 NET MGMT port (RJ-45)

System Capacity

Here are the basic features of the AT-DC2552XS L2 Data Center Switch:

 System Capacity

 2GB RAM Size

 128MB flash memory

 9MB Packet Buffer

 128K MAC addresses.

 4094 VLAN IDs (802.1Q)

 1K MAC-based VLAN

 512 ACL profiles with 256 ACL rules/profile

 8 QoS Queues Per Port

 255 Layer 2 multicast groups

 Maximum Jumbo Frames 12k Bytes

 32 Link Aggregation group (member 8)

 Port Mirroring

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Note

Installation Options

The AT-DC2552XS L2 Data Center Switch is designed to be installed in one of two ways:

 On a desktop.

 In a 19-inch equipment rack.

Power Supply/Fan Modules

The AT-DC2552XS must have two fan modules and at least one power supply module installed. You may elect to install a second power supply module for redundancy. The power supply and fan modules are:

 AT-PWR06 power supply module

 AT-FAN06 fan module

The AT-DC2552XS must have two fan modules and at least one power supply module installed before you power the unit on. You may elect to install a second power supply module for redundancy.

The AT-PWR06 power supply module and AT-FAN06 fan module are sold separately from the AT-DC2552XS L2 Data Center Switch. Contact your local Allied Telesis representative for more information.

Optional SFP+ Transceivers

The following SFP+ transceivers and direct attach cable assemblies have been approved by Allied Telesis and may be installed in the AT-DC2552XS chassis:

The SFP+ transceivers and direct attach cable assemblies are sold separately from the AT-DC2552XS L2 Data Center Switch. Contact your local Allied Telesis representative for more information.

 SFP + modules

- AT-SP10SR (10GBASE-SR LC Ren (2))

- AT-SP10LR (10GBASE-LR LC Ren (2))

- AT-SP10TW1 (SFP + Direct Attach Cable (1m))

- AT-SP10TW3 (SFP + Direct Attach Cable (3m))

- AT-SP10TW7 (SFP + Direct Attach Cable (7m))

Chapter 1: Overview

Note

Optional QSFP+ Transceivers

The following QSFP+ transceivers direct attach cable assemblies have been approved by Allied Telesis and may be installed in the AT-DC2552XS chassis:

The QSFP+ transceivers and direct attach cable assemblies are sold separately from the AT-DC2552XS L2 Data Center Switch. Contact your local Allied Telesis representative for more information.

 AT-QSFPSR (40GBASE-SR4 (MPO))

 QSFP+ Direct Attach Cables

- AT-QSFP1CU (QSFP + Direct Attach Cable (1m))

- AT-QSFP3CU (QSFP + Direct Attach Cable (3m))

 Fiber-Optic Cable for AT-QSFPSR

- ET3-MPO12-1 (1m)

- ET3-MPO12-5 (5m)

Management Software and Interfaces

Here are the management software and the management interfaces:

 AlliedWare Plus Management Software

 Command line interface

 SNMP V1, V2 and V3

Refer to the AT-DC2552XS Management Software Command Line Interface User’s Guide for information concerning specific

commands.

Management Methods

Here are the methods for managing the switches:

 Local management through the Console port

 Telnet client on a network or NET MGMT port

 Secure Shell with telnet client on a network (SSH) port

 SNMPv1, v2c, and v3 on a network or NET MGMT port

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Warning

PS 1 FAN 1 FAN 2 PS 2

Blank

Covers

Slot Slot Slot Slot

Fan 1

LED

Fan 2

LED

[Top of Chassis]

AT-DC2552XS

Physical

Description

The AT-DC2552XS L2 Data Center Switch physical description is as follows:

AT-DC2552XS Front Panel

The front panel of the AT-DC2552XS is shown in Figure 1 on page 19.

Figure 1. AT-DC2552XS Front Panel View

 Blank Covers - When the switch is shipped from the factory, four

 The power unit slots (PS 1/PS 2) are for the installation of the

 A second AT-PWR06 power supply module may be installed for

 With a redundant power supply configuration, you can replace one

blank covers are installed.

- Two blank covers for the power supply slots (PS 1/PS 2)

- Two blank covers for the two fan module slots (FAN 1/FAN 2)

To insure proper cooling and air flow within the chassis, the blank covers should not be removed unless an AT-PWR06 power supply module and the AT-FAN06 fan modules are installed in their place.

AT-PWR06 power supply module. These slots are located on the far right and far left sides of the chassis.

redundancy, but is not required for normal operation of the switch.

of the two power supply modules without turning off the primary power supply. Each AT-PWR06 power supply module that is installed in the chassis is hot-swappable. Refer to “Installing and Replacing AT-PWR06 Power Supply Module” on page 48 for the installation procedure.

Chapter 1: Overview

Note

NET MGMT Port LEDs

NET MGMT Port

4 QSFP+ Slots

QSFP+ Slot LEDs

Console Port

Power/Fault LED

48 SFP+ Slots

SFP+ Slot LEDs

Exhaust Air Vents

[Top of Chassis]

(Ports 1 - 48)

(Ports 49 - 64)

(ETH0)

The AT-PWR06 power supply module is sold and packaged separately from the AT-DC2552XS L2 Data Center Switch.

 The fan module slots (FAN 1/FAN 2) are for the installation of the

AT-FAN06 fan module. These slots are located on the center right and center left of the chassis.

 Two AT-FAN06 fan modules are required in the chassis for normal

operation of the switch. Refer to “Installing and Replacing ATFAN06 Fan Module” on page 52 for the installation procedure.

The AT-FAN06 fan module is sold and packaged separately from the AT-DC2552XS L2 Data Center Switch.

 Fan LEDs - The fan LEDs FAN 1 (upper LED) / FAN 2 (lower LED)

display the status of the fan modules. They are located in the center of the chassis between the fan module slots. See Figure 6 on page 27 for the functional description of these LEDs.

AT-DC2552XS Rear Panel

The rear panel of the AT-DC2552XS is shown in Figure 2.

Figure 2. AT-DC2552XS Rear Panel

 Exhaust Air Vents - Air is forced through the chassis by the fan

modules and power supply modules and exits through the exhaust air vents on the top of the rear panel.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Warning

Note

Keep the exhaust air vents clear of any obstructions to insure proper cooling of the switch components.

 SFP+ Slots - There are 48 SPF+ slots (ports 1 - 48) on the rear

panel. Each port supports communication speeds up to 10Gbps. The switch supports a variety of 10G SFP+ transceivers and direct attach cables.

The AT-DC2552XS L2 Data Center Switch only supports SFP+ transceivers in this product. Refer to “Installing SFP+ Transceivers and Cables” on page 56 for installation instructions of the SFP+ transceivers.

Each SFP+ slot has a dust cover installed at the factory which should be left in place until a SFP+ transceiver is installed.

 SFP+ Slot LEDs - Each SFP+ slot has a corresponding LED which

displays the link and activity status of the port. Refer to Figure 3 on page 23 for the location of these LEDs and Table 2 on page 23 for their functional description.

 QSFP+ Slots - There are four QSFP+ slots which support

communication speeds up to 40 GB. These slots are numbered 49, 53, 57 and 61. Each slot may be configured as one 40 GB port or 4 X 10GB ports in the management software. Refer to Figure 4 on page 24 for the location of these LEDs and Table 3 on page 24 for their functional description. Refer to “Installing QSFP+ Transceivers and Cables” on page 61 for installation instructions.

Each QSFP+ slot has a dust cover installed at the factory which should be left in place until an QSFP+ transceiver is installed.

QSFP+ transceivers must be purchased separately. For more information about the list of supported QSFP+ transceivers, refer to “Optional SFP+ Transceivers” on page 17.

 QSFP+ Slot LEDs - Each QSFP+ slot has a corresponding QSFP+

LED which displays the link and activity status of the QSFP + slots. Refer to “QSFP+ Slot LEDs” on page 24 for the functional description.

 Power/Fault LED - The Status LED displays the overall status of

the chassis, power supply modules and fan modules. Refer to

Chapter 1: Overview

Note

“Power/Fault LED” on page 25 for the functional description.

 Console Port - The console port is a standard RS-232 interface

using an USB interface. This port provides the capability to manage the configuration and firmware of the switch locally independent from the Ethernet network. Refer to “Connecting the Console Port” on page 70 for more information.

An RS-232 cable (female USB / D-Sub 9 pin) cable is included with the AT-DC2552XS shipping container.

 NET MGMT Port - This 10/100/1000BASE-T RJ-45 Ethernet port

provides the capability to manage the configuration and firmware of the switch. You can obtain or forward information via the CLI or SNMP interface. The port features auto MDI/MDI-X and auto negotiation.

The cable requirements of the NET MGMT port are given in Table 1.

 NET MGMT Port LEDs - These two LEDs display the speed, link

and activity status of the NET MGMT Port. Refer to “NET MGMT LED” on page 26 for more information.

 The cable requirements of the NET MGMT port are given in

Table 1.

Table 1. Twisted Pair Cable Specifications for the NET MGMT Port

Cable Type 10Mbps 100Mbps 1000Mbps

Standard TIA/EIA 568-B-

Yes Yes No compliant Category 3 shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.

Standard TIA/EIA 568-A-

Yes Yes Yes compliant Category 5 or TIA/ EIA 568-B-compliant 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 or 6a shielded cabling.

Yes Yes Yes

Stack Installation Guide for AT-2552XS L2 Data Center Switch

LED Upper

L/A LED Lower SFP+ Slot

Upper SFP+ Slot

LEDs

Here are the descriptions of the switch’s LEDs.

SFP+ Slot LED Each SFP+ slot has one Link/Activity LED. The LED is triangular in shape.

The triangle LED pointing up shows the status of the upper SFP+ slot while the triangle LED pointing down shows the status of the lower SFP+ slot. These SFP+ slot LEDs are shown in Figure 3.

Figure 3. SFP+ Slot LEDs

The SFP+ slot LEDs are described in Table 2.

Table 2. SFP+ Slot LED

LED State Description

Solid green The SFP+ transceiver has established a

link to a network device.

Link/Activity

Flashing

green

Off

The SFP+ transceiver is receiving or transmitting packets to a network device.

The SFP+ slot is empty or the SFP+ transceiver has not established a link to a network device.

Chapter 1: Overview

QSFP+ LEDs

QSFP+ Slot LEDs Each QSFP+ port has one link/activity LED labeled LINK/ACT. These

LEDs are shown in Figure 4.

Figure 4. QSFP+ LEDs

The QSFP+ LED is described in Table 3.

Table 3. QSFP+ LED

LED State Description

Solid green The QSFP+ transceiver has established a

link to a network device.

Link/Activity

Flashing

green

The QSFP+ transceiver is receiving or transmitting packets to a network device.

The QSFP+ slot is empty or the QSFP+

Off

transceiver has not established a link to a network device.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Power/Fault LED The Power/Fault LED are shown in Figure 5.

Figure 5. Power/Fault LEDs

The Power/Fault LED is described in Table 4.

Table 4. Power/Fault LED Description

Location LED State Description

Rear Panel

POWER /FAULT

Solid green Power is being supplied and the chassis is

operating normally.

Flashing

System is booting up.

green

There is a problem with:

Solid yellow

Flashing

- Failure of one or more power supply fans

Only one PSU is powered up.

yellow

Off No power.

Chapter 1: Overview

LINK LED

ACT LED

NET MGMT

The NET MGMT LED are shown in Figure 6.

LED

Figure 6. NET MGMT LEDs

The NET MGMT LEDs are described in Table 5.

Table 5. NET MGMT LED Descriptions

Location LED State Description

The NET MGMT port has established a link to

Rear

Panel

ACT

(Right LED)

Solid green

Flashing green

Off The NET MGMT port established a link to a

a network device, but no packets are being transmitted or received.

The NET MGMT port is receiving or transmitting packets to a network device.

network device.

LINK

(Left LED)

Solid green A valid 1G link is established on the port.

Solid yellow A valid 10/100M link is established on the port.

Off No link is established on the port.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

FAN Status LEDs The fan status LEDs are shown in Figure 7.

Figure 7. FAN Status LEDs

The fan status LEDs are described in Table 6.

Table 6. FAN Status LED Descriptions

Location LED State Description

Front Panel

FAN1

(top LED)

FAN2

(bottom LED)

Solid Green Fan operating normally.

Solid Red Fan is in failure mode.

Off No power is supplied to the Fan Module

Solid Green Fan operating normally.

Solid Red Fan is in failure mode.

Off No power is supplied to the Fan Module

Chapter 1: Overview

AC Power LED Each AT-PWR06 power supply module has a AC power (AC OK) LED.

This LED is shown in Figure 8.

Figure 8. AC Power LED

The AC Power LED is described in Table 7

Table 7. AC Power LED Description

Location LED State Description

Power Supply Module Panel AC OK

Solid Green AC power is supplied to power supply.

Off No AC power is supplied to power supply.

Console Port

Note

Stack Installation Guide for AT-2552XS L2 Data Center Switch

The Console port is used to locally configure the features and parameter settings of the switch. See Figure 2 on page 20 for the location of the Console port. This type of management uses serial RS-232 and is commonly referred to as local or out-of-band management because it is not connected over an Ethernet network. To perform local management, you must be at the location of the switch and must use the management cable included with the switch.

To establish a local management session with the switch, you connect a terminal or a personal computer with a terminal emulation program to the Console port, which has a USB connector, using the provided management cable, which has USB and DB-9 (D-sub 9-pin) connectors.

The Console port is set to the following specifications:

 Default baud rate: 9600 bps (Range is 9600 to 115200 bps)

 Data bits: 8

 Parity: None

 Stop bits: 1

 Flow control: None

These settings are for a DEC VT100 or ANSI terminal, or an equivalent terminal emulation program.

Chapter 1: Overview

Warning

Captive Intake

Handle

Power

Connector

AC Power

LED

Screws

Air Vents

AT-PWR06 Power Supply Module

The AT-DC2552XS L2 Data Center Switch is powered by one AT-PWR06 power supply module. A second AT-PWR06 power supply module may be installed for redundancy. The power supply module has an AC connector on the power supply module panel and is installed by the user in slot PS1 or slot PS2. The location of these slots is shown in Figure 2 on page 20.

When two power supplies are installed and operating, only one power supply is active at a time. The second power supply operates in a redundant state and is automatically activated by the switch if the active power supply loses power or fails. The change over is instantaneous and has no effect on the Ethernet data being passed through the chassis.

Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord.  E3

This unit might have more than one power cord. To reduce the risk of electric shock, disconnect all power cords before servicing the unit.  E30

Refer to “Power Specifications” on page 80 for the input power specifications.

A view of the AT-PWR06 power supply module is shown in Figure 9.

Figure 9. AT-PWR06 Power Supply Module

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Warning

The components of the AT-PWR06 power supply module (refer to Figure 9 on page 30) are as follows:

 Power connector - The AC power cable plugs into this connector.

Regional AC power cables are provided in the AT-PWR06 power supply module shipping box. See “Powering On the Switch” on page 66 and “Turn Off the switch” on page 68.

 AC Power LED - This LED displays the status of the power supply

module. See “AC Power LED” on page 28 for a functional description of this LED.

 Intake Air Vents - The AT-PWR06 power supply module has two

fans which pull air into the power supply module through the intake air vents to cool the power supply and the chassis components. The air is discharged through the exhaust air vents on the top of the chassis rear panel. See Figure 2 on page 20 for the location of the exhaust vents.

On both the AT-PWR06 power supply module and AT-FAN06 fan modules, keep the intake vents clear of any obstructions to insure proper cooling of the switch components.

 Captive screws - These two screws secure the power supply

module to the chassis frame. See “Installing and Replacing ATPWR06 Power Supply Module” on page 48 for the power supply installation procedure.

 Handle - The handle is used to physically push or pull the AT-

PWR06 power supply module when it is inserted or removed. See “Installing and Replacing AT-PWR06 Power Supply Module” on page 48 for the power supply installation procedure.

Chapter 1: Overview

Warning

Captive Screws

Intake Air VentsHandles

AT-FAN06 Fan Module

Installation of two AT-FAN06 fan modules are required in the AT-DC2552XS. Each AT-FAN06 fan module is equipped with two, forced air cooling fans The fans push air through the chassis from the front to the rear. The AT-FAN06 fan module is ordered and shipped separately from the AT-DC2552XS L2 Data Center Switch.

A view of the AT-FAN06 fan module is shown in Figure 10.

Figure 10. AT-FAN06 Fan Module

The components of the AT-FAN06 fan module are as follows:

 Captive screws - The two captive screws secure the fan module to

the chassis frame. See “AT-FAN06 Fan Module” on page 32 for the fan installation procedure.

 Handles - The two handles are used to physically push or pull the

AT-FAN06 fan module into and out of the chassis. See “AT-FAN06 Fan Module” on page 32 the fan installation procedure.

 Intake Air Vents - The AT-FAN06 fan module has two fans which

pull air through the intake air vents to cool the chassis components. The air is discharged through the rear panel exhaust air vents. See Figure 2 on page 20 for the location of the exhaust vents.

On both the AT-PWR06 power supply module and AT-FAN06 fan modules, keep the intake vents clear of any obstructions to insure proper cooling of the switch components.

Chapter 2

Beginning the Installation

The chapter contains the following sections:

 “Installation Overview” on page 34

 “Reviewing Safety Precautions” on page 35

 “Planning the Installation” on page 39

 “Unpacking the Switch” on page 40

Chapter 2: Beginning the Installation

Installation Overview

Table 8 lists the installation procedures for the AT-DC2552XS L2 Data Center Switch. The procedures should be performed in the order presented in the table.

1 “Reviewing Safety Precautions” on page 35

2 “Planning the Installation” on page 39

3 “Unpacking the Switch” on page 40

4 “Installing the Switch on a Desktop” on page 44

Table 8. Installation Procedures

Step Procedure

OR “Installing the Switch in an Equipment Rack” on page 45

5 “Installing Power Supply Module” on page 48

6 “Installing Fan Module” on page 52

7 “Installing SFP+ Transceivers and Cables” on page 56

8 “Installing QSFP+ Transceivers and Cables” on page 61

9 “Powering On the Switch” on page 66

10 “Managing the Switch” on page 69

Reviewing Safety Precautions

Note

Warning

Please review the following safety precautions before you begin to install the switch.

The  indicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements”.

Class 1 Laser product.  L1

Do not stare into the laser beam.  L2

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Do not look directly at the fiber optic cable ends or inspect the cable ends with an optical lens.  L6

To prevent electric shock, do not remove the cover. No userserviceable parts inside. This unit contains hazardous voltages and should only be opened by a trained and qualified technician. To avoid the possibility of electric shock, disconnect electric power to the product before connecting or disconnecting the LAN cables.  E1

Do not work on equipment or cables during periods of lightning activity.  E2

Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord.  E3

Chapter 2: Beginning the Installation

Warning

Note

Caution

Warning

Note

Warning

Class I Equipment. This equipment must be earthed. The power plug must be connected to a properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts.  E4

Pluggable Equipment. The socket outlet shall be installed near the equipment and shall be easily accessible.  E5

Air vents must not be blocked and must have free access to the room ambient air for cooling.  E6

Operating Temperature. This product is designed for a maximum ambient temperature of 40° degrees C.  E7

All Countries: Install product in accordance with local and National Electrical Codes.  E8

Only trained and qualified personnel are allowed to install or replace this equipment.  E14

Circuit Overloading: Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.  E21

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Caution

Warning

Note

Warning

Note

Caution

Risk of explosion if battery is replaced by an incorrect type. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.

Attention: Le remplacement de la batterie par une batterie de type incorrect peut provoquer un danger d’explosion. La remplacer uniquement par une batterie du même type ou de type équivalent recommandée par le constructeur. Les batteries doivent être éliminées conformément aux instructions du constructeur.  E22

Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading.  E25

Use dedicated power circuits or power conditioners to supply reliable electrical power to the device.  E27

This unit might have more than one power cord. To reduce the risk of electric shock, disconnect all power cords before servicing the unit.  E30

If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be greater than the room ambient temperature. Therefore, consideration should be given to installing the equipment in an environment compatible with the manufacturer’s maximum rated ambient temperature (Tmra).  E35

Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised.  E36

Chapter 2: Beginning the Installation

Warning

Caution

Warning

Reliable earthing of rack-mounted equipment should be maintained. Particular attention should be given to supply connections other than direct connections to the branch circuits (e.g., use of power strips).  E37

The unit does not contain serviceable components. Please return damaged units for servicing.  E42

When you remove an SFP module from this product, the case temperature of the SFP may exceed 40° C (158° F) Exercise caution when handling with unprotected hands.  E43

Planning the Installation

The AT-DC2552XS L2 Data Center Switch can be installed on a desktop or in a 19” equipment rack. Observe these general requirements when planning the installation of the switch.

 Check that the power outlets for the switches are located near the

 Verify that the site provides easy access to the ports on the back of

 Check that the site allows for adequate air flow around the units

 Do not place objects on top of the switch.

 Do not expose the switch to moisture or water.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

devices and are easily accessible.

the switch. This will make it easy for you to connect and disconnect cables, as well as view the port LEDs.

and through the cooling vents on the front and rear panels. (The airflow direction is from fan modules on the front panel through the unit to the port side on the rear panel.)

 Make sure the site is a dust-free environment.

 Use dedicated power circuits or power conditioners to supply

reliable electrical power to the network devices.

 Do not install the switch in a wiring or utility box because it will

overheat and fail from inadequate airflow.

 If the unit is to be installed in an equipment rack, check that the

rack is safely secured and will not tip over. Devices in a rack should be installed starting at the bottom, with the heavier devices near the bottom of the rack.

Chapter 2: Beginning the Installation

Note

One AT-DC2552XS switch

Two rack mounting brackets with eight bracket screws

Desk top mounting feet

One 2 m (6.6 ft) local management cable with USB and DB-9 (D-sub 9-pin) connectors.

Unpacking the Switch

Refer to the following figures in this section to verify the contents of the shipping containers:

 ”AT-DC2552XS Switch”

 “AT-PWR06 Power Supply” on page 41

 “AT-FAN06 Fan Module” on page 42

If any item in a shipping container is missing or damaged, contact your Allied Telesis sales representative for assistance.

AT-DC2552XS

Switch

The contents of the AT-DC2552XS shipping box are listed in Figure 11.

Figure 11. Contents of the AT-DC2552XS Shipping Box

You should retain the original packaging material in the event you need to return the unit to Allied Telesis.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Note

One AT-PWR06 Power Supply Module

One regional AC power cord

AT-PWR06

Power Supply

The contents of the AT-PWR06 power supply module shipping box are listed in Figure 12.

Figure 12. Contents of the AT-PWR06 Power Supply Module Shipping

Box

The AT-DC2552XS switch can operate with one power supply module installed. You may elect to install a second power supply module for redundancy.

The AT-PWR06 power supply module is sold and packaged separately from theAT-DC2552XS L2 Data Center Switch. Contact your local Allied Telesis representative for more information.

You should retain the original packaging material in the event you need to return the unit to Allied Telesis.

Chapter 2: Beginning the Installation

Note

One AT-FAN06 FAN Module

AT-FAN06 Fan

Module

The contents of the AT-FAN06 fan module shipping box are listed in Figure 12.

Figure 13. Contents of the AT-FAN06 Fan Module Shipping Box

The AT-DC2552XS switch must have two fan modules installed for proper operation.

The AT-FAN06 fan module is sold and packaged separately from the AT-DC2552XS L2 Data Center Switch. Contact your local Allied Telesis representative for more information.

You should retain the original packaging material in the event you need to return the unit to Allied Telesis.

Chapter 3

Installing the Switch and Modules

You may install the AT-DC2552XS Switch on a desktop or in a standard 19 inch equipment rack. In addition, you must install at least one AT-PWR06 power supply module and two AT-FAN06 fan modules in the switch chassis.

Here are the installation procedures in this chapter:

 “Installing the Switch on a Desktop” on page 44

 “Installing the Switch in an Equipment Rack” on page 45

 “Installing and Replacing AT-PWR06 Power Supply Module” on

page 48

 “Installing and Replacing AT-FAN06 Fan Module” on page 52

Chapter 3: Installing the Switch and Modules

Note

[Bottom of Switch]

Installing the Switch on a Desktop

To install the switch on a desktop, perform the following procedure:

To install the switch in a rack, refer to “Installing the Switch in an Equipment Rack” on page 45.

1. Remove all equipment from the package and store the packaging material in a safe place.

2. Turn the switch over and place it on a table.

3. Remove the adhesive backing from the rubber feet.

4. Four rubber feet are provided in the switch shipping container, see Figure 11 on page 40. Attach the feet to the bottom of the switch in the corners as shown in Figure 14.

Figure 14. Attaching the Rubber Feet

5. Turn the switch over again and place it on a flat, secure surface (such as a desk or table) leaving ample space around the unit for ventilation.

6. The next step in the installation process is installing the power supply module(s). Go to “Installing Power Supply Module” on page 48 for the installation procedure.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Note

Installing the Switch in an Equipment Rack

To install the switch on a desktop, refer to “Installing the Switch on a Desktop” on page 44.

When installing the AT-DC2552XS switch in a 19 inch rack, it must always be mounted horizontally with the top side up, see Figure 1 on page 19 and Figure 2 on page 20. The switch can be oriented and positioned in the rack in four different ways. This is determined by where you install the two rack mount brackets that are provided. The four possible positions for the brackets are:

 Flush with the front of chassis so the front of the chassis is even

with the vertical rack rails.

 Offset by 17.5 cm from the front of the chassis so that the front of

the chassis protrudes beyond the vertical rack rails by 17.5 cm.

 Flush with the back of chassis so the back of the chassis is even

with the vertical rack rails.

 Offset by 17.5 cm from the back of the chassis so that the back of

the chassis protrudes beyond the vertical rack rails by 17.5 cm.

These four possible bracket locations are illustrated in Figure 15.

Figure 15. Possible Bracket Locations

Chapter 3: Installing the Switch and Modules

Note

Caution

This procedure requires the following items:

Perform this procedure to install the switch in a 19-inch equipment rack:

1. Secure the two rack mount brackets to the sides of the switch using

 Eight bracket screws (included with the switch)

 Two equipment rack brackets (included with the switch)

 Cross-head screwdriver (not provided)

 Four standard equipment rack screws (not provided)

If you have installed the rubber feet, remove the rubber feet by prying them off the bottom of the chassis with a flat-bladed tool.

the eight bracket screws provided. Figure 16 shows an example of mounting the rack mount bracket on the front of the chassis and with the bracket flush to the front panel. See Figure 15 for other possible bracket mounting positions on the chassis.

Figure 16. Attaching the Brackets to Switch

The chassis may be heavy and awkward to lift. Allied Telesis recommends that you get assistance when mounting the chassis in an equipment rack.  E28

Stack Installation Guide for AT-2552XS L2 Data Center Switch

2. Have another person hold the switch in the equipment rack while you secure it using standard rack mount screws (not provided).

Figure 17. Mounting the Switch in an Equipment Rack

Chapter 3: Installing the Switch and Modules

Installing and Replacing AT-PWR06 Power Supply Module

The AT-PWR06 power supply module may be installed in one of the two power supply slots - PSU1 and PSU2. See Figure 1 on page 19 for the location of these slots.

The AT-DC2552XS L2 Data Center Switch can operate under full load with one power supply module installed. However, if you want power supply redundancy, a second power supply may be installed.

There is no functional difference between the two available power supply slots. Operation of the AT-DC2552XS is the same when installed in either slot. If you want to use only one power supply, Allied Telesis recommends that you install it in the PSU1 slot.

The following procedures are included in this section:

 “Installing Power Supply Module” on page 48

 “Replacing Power Supply Module” on page 50

Installing Power

Supply Module

 “Installing Power Supply Blank Cover” on page 51

Install the AT-PWR06 power supply module by performing the following procedure:

1. Identify the power supply slot where you are installing the AT-PWR06 power supply module.

2. Loosen the captive screw on the blank cover panel of the power supply slot blank cover and remove the cover. See Figure 18.

Figure 18. Loosen Power Supply Captive Screws

3. Store the blank cover in a safe place for future use.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Caution

The PSU blank cover should be installed if an AT-PWR06 power supply module is not present in the chassis. This blank cover assures that the correct airflow across the components in the chassis when a power supply module is not installed. See “Installing Power Supply Blank Cover” on page 51.

4. Slowly insert the AT-PWR06 power supply module into the PSU slot until it is flush with the front of the chassis. See Figure 19.

Figure 19. Insert AT-PWR06 Module Into Chassis

Chapter 3: Installing the Switch and Modules

Caution

5. Tighten the captive screws to fasten of the power supply module to the chassis. See Figure 20.

Figure 20. Tighten AT-PWR06 Captive Screws

Replacing Power

Supply Module

6. The next step in the installation process is installing the fan modules. Go to “Installing Fan Module” on page 52 for the installation procedure.

The AT-PWR06 power supply module is hot swappable within the chassis assuming a second AT-PWR06 power supply module is already installed and operating.

Perform the following procedure to replace a AT-PWR06 power supply module:

If a replacement AT-PWR06 power supply module is not immediately available for a redundant power supply, the PSU blank cover should be installed in its place. This blank cover assures that the correct airflow across the components within the chassis when a power supply module is not installed. See “Installing Power Supply Blank Cover” on page 51.

1. Turn off the power to the AT-PWR06 power supply module by disconnecting the AC power cord. See “Turn Off the switch” on page 68.

2. Loosen the captive screws on the AT-PWR06 power supply module.

3. Gently pull the handle of the AT-PWR06 power supply module to remove the module from the chassis.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Note

Caution

If a new AT-PWR06 power supply module is not available to replace the module you are removing, perform the procedure outlined in “Installing Power Supply Blank Cover” on page 51.

4. Slowly insert the new AT-PWR06 power supply module into the PSU slot until it is flush with the front of the chassis.

5. Tighten the captive screws to fasten of the power supply module to the chassis.

6. Turn the power on to the newly installed AT-PWR06 power supply module by connecting the AC power cord.

Installing Power

Supply Blank

Cover

If you have removed an AT-PWR06 power supply module from the chassis and a replacement power supply module is not available, the blank power supply cover should be installed to insure proper airflow in the chassis.

The PSU blank cover should be installed if an AT-PWR06 power supply module is not installed in the power supply slot. This blank cover assures that the correct airflow across the components within the chassis when a power supply module is not installed.

Perform the following procedure to install the blank power supply cover:

1. Locate the blank power supply cover that was originally shipped with the chassis.

2. Remove the AT-PWR06 power supply module by following steps 1 - 3 in “Replacing Power Supply Module” on page 50.

3. Once the AT-PWR06 power supply module has been removed, place the blank power supply cover over the vacant power supply slot.

4. Tighten the captive screws on the power supply blank cover.

Chapter 3: Installing the Switch and Modules

Installing and Replacing AT-FAN06 Fan Module

The following procedures are included in this section:

 “Installing and Replacing AT-FAN06 Fan Module” on page 52

 “Replacing Fan Module” on page 54

The AT-FAN06 fan module is hot swappable within the chassis.

Installing Fan

Module

Perform the following procedure to install an AT-FAN06 fan module:

1. Loosen the captive screws on the fan blank cover panel on Fan 1 (left) slot. See Figure 21.

Figure 21. Loosen Screws on Fan Blank Cover

2. Remove the blank cover and store in a safe place.

3. Gently push the fan module into the slot with the handles on the fan module until the module front panel is flush with the chassis front panel. See Figure 22.

Figure 22. Insert AT-FAN06 Module Into Chassis

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Warning

4. Tighten the captive screws to fasten the fan module to the chassis. See Figure 23.

Figure 23. Tighten AT-FAN06 Captive Screws

5. Repeat steps 1 through 4 to install the second fan module into Fan 2 (right) slot.

To operate this product, two fan modules must be installed. Operation of the AT-DC2552XS L2 Data Center Switch with one fan module will cause the chassis to overheat.

6. The next step in the installation process is installing the SFP+ transceivers. Go to “Installing SFP+ Transceiver” on page 57 for the installation procedure.

Chapter 3: Installing the Switch and Modules

Warning

Replacing Fan

Module

The AT-FAN06 fan module is hot swappable within the chassis. The power to the chassis can remain ON while one of the fan modules is replaced. The following procedure assumes a second AT-FAN06 fan module is already installed and operating.

Perform the following procedure to replace an AT-FAN06 fan module:

The chassis cooling is designed to operate with two fan modules operating together. To avoid overheating of the AT-DC2552XS chassis, please complete the following procedure within one minute.

1. Loosen the captive screws on the AT-FAN06 fan module.

2. Gently pull the handle of the AT-FAN06 fan module to remove it from the chassis.

3. Slowly insert the new AT-FAN06 fan module into the vacant fan slot until it is flush with the front of the chassis.

The new AT-FAN06 fan module immediately powers up assuming the chassis power supplies are turned on.

4. Tighten the captive screws to fasten the fan module to the chassis. See Figure 23.

Chapter 4

Installing the SFP+ and QSFP+ Transceivers and Cables

The list of approved SFP+ and QSFP+ transceivers and direct connect cables that may be installed in the AT-DC2552XS chassis are given in “Optional SFP+ Transceivers” on page 17 and “Optional QSFP+ Transceivers” on page 18.

This chapter contains the following procedures:

 “Installing SFP+ Transceivers and Cables” on page 56

 “Installing QSFP+ Transceivers and Cables” on page 61

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

Warning

Installing SFP+ Transceivers and Cables

General

Guidelines

Review the following guidelines before installing optional SFP+ transceivers or SFP+ direct attach cables in the switch:

 SFP+ transceivers and SFP+ direct attach cables can be hot-

swapped while the switch is powered on. For a SFP+ transceiver, you should always disconnect the fiber optic cable before removing a module.

 When you are installing a SFP+ transceiver, you should install the

module before connecting the fiber optic cable.

 Fiber optic modules are dust sensitive. Always keep the plug in the

optical bores when a fiber optic cable is not installed or when you store the module. When you do remove the plug, keep it for future use.

 Unnecessary removal and insertion of a module can lead to

premature failure.

A module can be damaged by static electricity. Be sure to observe all standard electrostatic discharge (ESD) precautions, such as wearing an antistatic wrist strap, to avoid damaging the device.

SFP+

Transceiver

10GBASE-SR AT-SP10SR

10GBASE-LR AT-SP10LR

 Go to “Optional SFP+ Transceivers” on page 17 for a list of

approved SFP+ transceivers for the AT-DC2552XS.

 Allied Telesis recommends using the following SFP+ cables listed

in Table 9:

Table 9. SFP+ Cables

Cable Used Max Transmission Distance

GI 50/125 multimode fiber (In accordance with ITU-T G.651)

GI 62.5/125 multimode fiber

Monomode fiber (In accordance with ITU-T G.652)

66m(At 400MHz - km transmission band)

82m(At 500MHz - km transmission band)

300m(At 2000MHz - km transmission band)

26m(At 160MHz - km transmission band)

33m(At 200MHz - km transmission band)

10km

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Handle

Installing SFP+

Transceiver

Perform the following procedure to install a SFP+ transceiver:

1. Remove the dust plug from a SFP+ slot on the switch. Refer to Figure

24.

Figure 24. Removing the Dust Plug from a SFP+ Slot

2. Remove the module from its shipping container and store the packaging material in a safe location.

3. If you are installing the module in the top SFP+ slot, position the module with the handle facing up as shown in Figure 25. If you are installing the module in the bottom slot, position the module with the handle facing down.

Figure 25. Handle on SFP Transceiver

4. Verify that the SFP module handle is closed against the body of the module.

5. Slide the module into the slot until it snaps into place as shown in Figure 26 on page 58.

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

Note

Figure 26. Installing a SFP+ Transceiver

If you are ready to attach the fiber optic cable to the transceiver, continue with the next step. Otherwise, repeat steps 1 to 5 to install the remaining SFP+ transceivers in the chassis. Do not remove the dust cover from the installed SFP+ transceiver(s) until you are ready to install the fiber optic cable.

6. Remove the dust cover from the module. See Figure 27.

Figure 27. Removing SFP+ Dust Cover

Stack Installation Guide for AT-2552XS L2 Data Center Switch

7. Refer to Table 9 on page 56 for the recommended fiber optic cable. Insert the cable to the port on the transceiver, as shown in Figure 28, until it snaps in place.

Figure 28. Attaching a Fiber Optic Cable to an SFP+ Transceiver

Installing a SFP+

Direct Attach

Cables

8. Repeat steps 6 and 7 for the cable installation into the remaining SFP+ transceivers that are installed.

The AT-SP10TW1, AT-SP10TW3 and AT-SP10TW7 10G direct attach cables come in 1m, 3m, and 7m cable lengths respectively. These SFP+ cable modules are ordered and supplied separately from the AT-DC2552XS.

Perform the following procedure to install a SFP+ direct attach cables:

1. Remove the dust plug from a SFP+ slot on the switch. Refer to Figure

29.

Figure 29. Removing the Dust Plug from a SFP+ Slot

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

2. Remove the SFP+ direct attach cable from its shipping container and store the packaging material in a safe location.

3. If you are installing the direct attach cable in a top SFP+ slot, position it with the Allied Telesis label and tab facing up. If you are installing the direct attach cable in a bottom slot, position the it so that the label and tab are facing down.

4. Slide the direct attach cable into the slot until it snaps in place. See Figure 30

Figure 30. Installing a SFP+ Direct Attach Cable

5. Repeat steps 1 through 4 of this procedure if you have other SFP+ direct attach cables to install.

6. If you have QSFP+ transceivers or QSFP+ MTHTP cables, go to “Installing QSFP+ Transceivers and Cables” on page 61.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Installing QSFP+ Transceivers and Cables

Review the following guidelines before installing optional QSFP+ transceivers in the switch:

 QSFP+ transceivers can be hot-swapped while the switch is

powered on. However, you should always disconnect the fiber optic cables first before removing a module.

 You should install the module before connecting the fiber optic

cable.

 Unnecessary removal and insertion of a module can lead to

premature failure.

 Go to “Optional QSFP+ Transceivers” on page 18 for a list of

approved QSFP+ transceivers for the AT-DC2552XS.

 Allied Telesis recommends using the following SFP+ cables listed

in Table 10:

Table 10. QSFP+ Cables

Port Cable Used Max Transmission Distance

26m (At 400MHz - km transmission band)

40GBASE-SR4 AT-QSFPSR

ET3-MTP 12-1 MTHTP cable for AT-QSFPSR

ET3-MTP 12-5 5m

Installing a

QSFP+

Transceiver

GI 50/125 multimode fiber (In accordance with ITU-T G.651)

Perform the following procedure to install an QSFP+ transceiver:

1. Remove the module from its shipping container and store the packaging material in a safe location.

2. Remove the dust cover from the chassis QSFP+ slot. See Figure 31 on page 62.

30m (At 500MHz - km transmission band)

100m (At 2000MHz - km transmission band)

150m (At 4700MHz - km transmission band)

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

Note

Figure 31. Removing QSFP+ Slot Dust Cover

3. If you are installing the transceiver in the top QSFP+ slot, position the transceiver with the Allied Telesis handle facing up. If you are installing the transceiver in the bottom slot, position the transceiver with the handle facing down.

4. Slide the module into the slot until it clicks into place. See Figure 32.

Figure 32. Installing an QSFP+ Transceiver

5. Repeat steps 1 - 4 if you have other QSFP+ transceivers to install.

If you are ready to attach the fiber optic cable to the transceiver, continue with the next step. Otherwise, repeat steps 1 to 4 to install the remaining QSFP+ transceiver(s) in the line cards. Do not remove the dust cover from the installed QSFP+ transceiver until you are ready to install the fiber optic cable.

6. Remove the dust cover from the transceiver. See Figure 33 on page

63.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Figure 33. Removing QSFP+ Dust Cover

7. Insert the fiber optic cable to the port on the transceiver, as shown in Figure 34, until it clicks in place.

Installing a

QSFP+ MTHTP

Cable

Figure 34. Attaching a Fiber Optic Cable to an QSFP+ Transceiver

8. Repeat this procedure if you have other QSFP+ transceivers to install.

Perform the following procedure to install a QSFP+ MTHTP cable:

1. Remove the QSFP+ MTHTP cable from its shipping container and store the packaging material in a safe location.

2. Remove the dust cover from the chassis QSFP+ slot. See Figure 35 on page 64.

Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables

Figure 35. Removing QSFP+ Slot Dust Cover

3. If you are installing the QSFP+ MTHTP cable in the top QSFP+ slot, position the cable with the tab facing up. If you are installing the module in the bottom slot, position the cable with the tab facing down.

4. Slide the module into the slot until it clicks into place.

Figure 36. Installing an QSFP+ MTHTP Cable

5. Repeat this procedure if you have other QSFP+ MTHTP cables to install.

6. The next step in the installation process is applying AC power to the switch. Go to Chapter 5, “Powering the Switch” on page 65.

Chapter 5

Powering the Switch

The procedures in this chapter are listed here:

 “Powering On the Switch” on page 66

 “Turn Off the switch” on page 68

Chapter 5: Powering the Switch

Note

Warning

Note

Powering On the Switch

The power turns on automatically when you connect the power cable to one or both of the AT-PWR06 power supply modules. To power on the switch, perform the following procedure:

Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord.  E3

Pluggable Equipment. The socket outlet shall be installed near the equipment and shall be easily accessible.  E5

If one of the power supply slots is empty with the power supply unit not installed, install the cover panel before powering the switch on. Refer to “Installing and Replacing AT-PWR06 Power Supply Module” on page 48

1. Inspect the front of the AT-DC2552XS chassis to insure that at least one AT-PWR06 power supply module and two AT-FAN06 fan modules are installed. If one of these modules needs to be installed, perform the steps described in “Installing Power Supply Module” on page 48 or “Installing Fan Module” on page 52.

2. Connect the AC power cable to the AC power connector on the AT-PWR06 power supply module.

3. Connect the AC power plug to an AC power outlet.

4. With the AC power cable connected to the power supply module and an AC power source, the AC power is turned on to the switch.

You can observe that the AT-PWR06 power (AC OK) LED is solid green. If only one power supply module is powered on, the POWER / FAULT LED on the back of the chassis is blinking yellow.

If two AT-PWR06 power supply modules are powered on, both power supply module AC OK LEDs are solid green and the POWER / FAULT LED is solid green too.

5. If you have installed a second redundant power supply module and have not powered it on, repeat steps 1 - 3.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

6. The next step in the installation process is to access the AT-DC2552XS management interface. Go to Chapter 6, “Connecting the Console Port” on page 70 for instructions on connecting to the Console port.

Chapter 5: Powering the Switch

Warning

Turn Off the switch

To turn off the AC power to the switch, perform the following procedure.

Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord.  E3

1. Disconnect the power plug from the power outlet. If you have two ATPWR06 power supply modules installed, be sure to disconnect the AC power plugs to both power supply modules.

Chapter 6

Managing the Switch

You may manage an AT-DC2552XS L2 Data Center Switch with these methods and tools:

 Local management via Telnet client

 Remote management via Telnet client

 Remote management via SNMPv1, v2C, v3

This chapter contains the following procedures to manage the switch:

 “Local Management” on page 70

 “Remote Network Management” on page 72

Chapter 6: Managing the Switch

Local Management

You can manage the AT-DC2552XS switch locally through the Console port (USB connector) the rear panel of the switch. This is called local management or out-of-band management because the management sessions are not connected over your Ethernet network. The requirements for local management are listed here:

 A terminal or computer with a VT100 or equivalent terminal

emulator program

 The management cable included with the switch.

This management method uses the command line interface, which gives you access to all of the features and parameters of the switch. See the

AT-DC2552XS Management Software Command Line Interface User’s Guide for information at alliedtelesis.com/support/documentation.

Connecting the

Console Port

This procedure requires a terminal or a terminal emulator program and the management cable that comes with the switch. To start a local management session on the switch, perform the following procedure:

1. Connect the USB connector on the management cable to the Console (USB) port on the rear panel of the switch. See Figure 37

Figure 37. Connecting the Management Cable to the Console Port

2. Connect the other end of the cable to an RS-232 port on a terminal or PC with a terminal emulator program.

3. Configure the terminal or terminal emulator program as follows:

 Baud rate: 9600 bps (The baud rate of the Console Port is

adjustable from 1200 to 115200 bps. The default is 9600 bps.)

 Data bits: 8

 Parity: None

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Note

 Stop bits: 1

 Flow control: None

The port settings are for a DEC VT100 or ANSI terminal, or an equivalent terminal emulator program.

4. Press Enter.

You are prompted for a user name and password.

5. When prompted, enter a user name and password to log on the switch. If this is the initial management session of the switch, enter “manager” as the user name “friend” as the password. The user name and password are case sensitive.

You are now logged into the switch’s management software. Refer to the

AT-DC2552XS Management Software Command Line Interface User’s Guide for more information about the switch’s CLI commands.

Chapter 6: Managing the Switch

Remote Network Management

You can manage the AT-DC2552XS switch remotely through any of the Ethernet ports (1 through 64) or through or the NET MGMT (ETH0) Ethernet port on the rear panel of the switch. See Figure 2 on page 20 for the location of these ports.

A management session may be established through these ports over an Ethernet network. The requirements for remote management of the switch are listed here:

 A terminal or computer with a VT100 or equivalent terminal

emulator program with a connection to your Ethernet network.

 A connection from the AT-DC2552XS L2 Data Center Switch to

your Ethernet network.

 You can also manage the switch using the NET MGMT (ETH0)

port which is an Ethernet port, but is out-of-band from normal Ethernet traffic. See the “NET MGMT Cable Installation,” next on this page to connect to this port.

NET MGMT

Cable Installation

With remote management, you can choose to use the command line interface (CLI) or SNMP. The CLI gives you access to all of the features and parameters of the switch.

If you want to use SNMP, you must initially start with the CLI SNMP configuration commands where you can customize the SNMP interface.

See the AT-DC2552XS Management Software Command Line Interface

User’s Guide for more information at alliedtelesis.com/support/ documentation.

The NET MGMT port is a 10/100/1000BASE-T, RJ-45 port located on the rear panel of the switch. See Figure 2 on page 20 for this port’s location. Perform the following procedure to install the cable in the NET MGMT port.

1. Select a twisted pair cable from Table 1 on page 22 to connect to the NET MGMT port.

2. Place the locking tab on the bottom and insert the twisted-pair cable into the NET MGMT port. See Figure 38 on page 73. The connector should click into place when it is fully seated.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Figure 38. Connecting the Twisted Pair Cable into the NET MGMT port

3. With the AT-DC2552XS and link partner network device powered on, verify that the NET MGMT port LINK/ACT LED is either amber or green. See “NET MGMT LED Descriptions” on page 26 for the functional description of this LED. See Chapter 7, “Troubleshooting” on page 75 if this LED does not illuminate.

Chapter 6: Managing the Switch

Chapter 7

Note

Troubleshooting

This chapter contains suggestions on how to troubleshoot the switch if a problem occurs.

For further assistance, please contact Allied Telesis Technical Support. Refer to “Contacting Allied Telesis” on page 13.

Problem: The NET MGMT twisted pair port on the switch is connected to a network device but the port’s LINK/ACT LED is off.

Solutions: The port is unable to establish a link to a network device. Try the following:

 Verify that the network device connected to the twisted pair port is

powered on and is operating properly.

 Verify that the port is connected to the correct twisted pair cable.

This is to eliminate the possibility that the port is connected to the wrong network device.

 Try connecting another network device to the twisted pair port with

a different cable. If the twisted pair port is able to establish a link, then the problem is with the cable or the other network device.

 Verify that the twisted pair cable does not exceed 100 meters (328

feet).

 Verify that you are using the appropriate category of twisted pair

cable. The cable types are listed in Table 1 on page 22 for the 10/ 100Base-TX ports and Table 1 on page 22 for the 10/100/ 1000Base-T ports.

Problem: The LINK/ACT LED for a SFP+ transceiver is off.

Solutions: The fiber optic port on the module is unable to establish a link

to a network device. Try the following:

 Verify that the network device connected to the fiber optic port is

operating properly.

 Verify that the fiber optic cable is securely connected to the port on

the SFP+ transceiver and to the port on the remote network device.

 Check that the SFP module is fully inserted in the slot.

Chapter 7: Troubleshooting

 Verify that the operating specifications of the fiber optic ports on

the SFP+ transceiver and the remote network device are compatible.

 Verify that the correct type of fiber optic cabling is being used.

 Verify that the port is connected to the correct fiber optic cable.

This is to eliminate the possibility that the port is connected to the wrong remote network device.

 Try connecting another network device to the fiber optic port using

a different cable. If the port is able to establish a link, then the problem is with either the cable or the other network device.

 Use the switch’s management software to verify that the port is

enabled. Refer to AT-DC2552XS Management Software Command Line Interface User’s Guide for information concerning

specific commands.

 If the remote network device is a managed device, use its

management firmware to determine whether its port is enabled.

 Test the attenuation on the fiber optic cable with a fiber optic tester

to determine whether the input optical signal is too weak (sensitivity) or too strong (maximum input power).

Problem: The LINK/ACT LED for a QSFP+ transceiver is off.

Solutions: The fiber optic port on the module is unable to establish a link

to a network device. Try the following:

 Verify that the network device connected to the fiber optic port is

operating properly.

 Verify that the fiber optic cable is securely connected to the port on

the QSFP+ transceiver and to the port on the remote network device.

 Check that the QSFP module is fully inserted in the slot.

 Verify that the operating specifications of the fiber optic ports on

the QSFP+ transceiver and the remote network device are compatible.

 Verify that the correct type of fiber optic cabling is being used.

 Verify that the port is connected to the correct fiber optic cable.

This is to eliminate the possibility that the port is connected to the wrong remote network device.

 Try connecting another network device to the fiber optic port using

a different cable. If the port is able to establish a link, then the problem is with either the cable or the other network device.

 Use the switch’s management software to verify that the port is

enabled. Refer to AT-DC2552XS Management Software Command Line Interface User’s Guide for information concerning

specific commands.

Stack Installation Guide for AT-2552XS L2 Data Center Switch

 If the remote network device is a managed device, use its

management firmware to determine whether its port is enabled.

 Test the attenuation on the fiber optic cable with a fiber optic tester

to determine whether the input optical signal is too weak (sensitivity) or too strong (maximum input power).

Chapter 7: Troubleshooting

Appendix A

Technical Specifications

This appendix contains the technical specifications for the AT-DC2552XS L2 Data Center Switch.

Physical Specifications

Dimensions (H x W x D)

Table 11. Product Dimensions

Model Specification

AT-DC2552XS 440 x 460 x 44 mm (17.32 x 18.11 x 1.73 inch)

Weights

AT-DC2552XS 7.23 kg (15.95 lb.)

AT-PWR06 1.34 kg (2.95 lb.)

AT-FAN06 0.20 kg (0.45 lb.)

Environmental Specifications

Parameter Specifications

Operating Temperature 0° C to 40° C (32° F to 104° F)

Storage Temperature -20° C to 60° C (-4° F to 140° F)

Table 12. Product Weights

Model Specifications

Table 13. Environmental Specifications

Operating Humidity 0% to 80% noncondensing

Storage Humidity 0% to 90% noncondensing

Appendix A: Technical Specifications

Power Specifications

AT-PWR06 Input Specifications

Certifications

Table 14. AT-PWR06 Input Specifications

Parameter Specifications

Voltage Voltage: 100-240V AC (10% auto-

ranging)

Frequency 50/60 Hz per input

Maximum Current 16A @ 100V

EMI (Emissions) FCC Class A, EN55022 Class A, VCCI,

EMC (Immunity) EN55024, EN61000-3-2, EN61000-3-3

Electrical and Laser Safety EN60950-1 (TUV), UL 60950-1 (

Quality and Reliability

AT-DC2552XS L2 Data Center Switch with 2 power supplies and 2 fans

Table 15. Product Certifications

Parameter Specifications

CISPR 22 Class A, C-TICK

Table 16. MTBF

Parameter Specifications

61,320 hours

CULUS

)

RJ-45 Twisted Pair Port Pinouts

Figure 39 illustrates the pin layout of an RJ-45 connector and port.

Figure 39. RJ-45 Connector and Port Pin Layout

Table 17 lists the pin signals for 10 and 100 Mbps.

Table 17. Pin Signals for 10 and 100 Mbps

Pin MDI Signal MDI-X Signal

Stack Installation Guide for AT-2552XS L2 Data Center Switch

1TX+ RX+

2TX- RX-

3RX+ TX+

4 Not used Not used

5 Not used Not used

6RX- TX-

7 Not used Not used

8 Not used Not used

Appendix A: Technical Specifications

Table 18 lists the pin signals when a port operating at 1000 Mbps.

Table 18. Pin Signals - 1000 Mbps

Pinout Pair

1Pair 1 +

2Pair 1 -

3Pair 2 +

4Pair 3 +

5Pair 3 -

6Pair 2 -

7Pair 4 +

8Pair 4 -

Stack Installation Guide for AT-2552XS L2 Data Center Switch

Appendix A: Technical Specifications

Allied Telesis AT-PWR06, AT-DC2552XS, AT-FAN06 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Figures

Table s

Preface

Document Conventions

Contacting Allied Telesis

Chapter 1

Overview

AT-DC2552XS Features

LEDs

SFP+ Slot LED Each SFP+ slot has one Link/Activity LED. The LED is triangular in shape.

QSFP+ Slot LEDs Each QSFP+ port has one link/activity LED labeled LINK/ACT. These

Power/Fault LED The Power/Fault LED are shown in Figure 5.

FAN Status LEDs The fan status LEDs are shown in Figure 7.

AC Power LED Each AT-PWR06 power supply module has a AC power (AC OK) LED.

Console Port

AT-PWR06 Power Supply Module

AT-FAN06 Fan Module

Chapter 2

Beginning the Installation

Installation Overview

Reviewing Safety Precautions

Planning the Installation

Unpacking the Switch

Chapter 3

Installing the Switch and Modules

Installing the Switch on a Desktop

Installing the Switch in an Equipment Rack

Installing and Replacing AT-PWR06 Power Supply Module

Installing and Replacing AT-FAN06 Fan Module

Chapter 4

Installing the SFP+ and QSFP+ Transceivers and Cables

Installing SFP+ Transceivers and Cables

Installing QSFP+ Transceivers and Cables

Chapter 5

Powering the Switch

Powering On the Switch

Turn Off the switch

Chapter 6

Managing the Switch

Local Management

Remote Network Management

Chapter 7

Troubleshooting

Appendix A

Technical Specifications

Physical Specifications

Environmental Specifications

Power Specifications

Certifications

Quality and Reliability

RJ-45 Twisted Pair Port Pinouts