AT-DC2552XS L2 Data Center Switch Installation Guide 613-001760 Rev.
Copyright © 2013 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. 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.
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.
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.
Contents Preface................................................................................................................................................................................11 Document Conventions ................................................................................................................................................12 Contacting Allied Telesis ..........................................................................................................................
Contents Chapter 6: Managing the Switch .................................................................................................................................... 69 Local Management ...................................................................................................................................................... 70 Connecting the Console Port ...............................................................................................................................
Figures Figure 1: AT-DC2552XS Front Panel View ..........................................................................................................................19 Figure 2: AT-DC2552XS Rear Panel....................................................................................................................................20 Figure 3: SFP+ Slot LEDs ...................................................................................................................................................
Figures 8
Tables Table 1: Twisted Pair Cable Specifications for the NET MGMT Port ..................................................................................22 Table 2: SFP+ Slot LED ......................................................................................................................................................23 Table 3: QSFP+ LED ...........................................................................................................................................................
Tables 10
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.
Preface Document Conventions This document uses the following conventions: Note Notes provide additional information. Caution Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data. Warning Warnings inform you that performing or omitting a specific action may result in bodily injury.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Preface 14
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 15
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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Chapter 1: Overview 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: Note 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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. Blank Covers Fan 1 LED [Top of Chassis] Fan 2 LED PS 1 Slot FAN 1 Slot FAN 2 Slot PS 2 Slot Figure 1. AT-DC2552XS Front Panel View Blank Covers - When the switch is shipped from the factory, four blank covers are installed.
Chapter 1: Overview Note 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Warning 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.
Chapter 1: Overview “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. Note An RS-232 cable (female USB / D-Sub 9 pin) cable is included with the AT-DC2552XS shipping container.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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. LED Upper Upper SFP+ Slot L/A LED Lower SFP+ Slot Figure 3.
Chapter 1: Overview QSFP+ Slot LEDs Each QSFP+ port has one link/activity LED labeled LINK/ACT. These LEDs are shown in Figure 4. QSFP+ LEDs Figure 4. QSFP+ LEDs The QSFP+ LED is described in Table 3. Table 3. QSFP+ LED LED Link/Activity 24 State Description Solid green The QSFP+ transceiver has established a link to a network device. Flashing green The QSFP+ transceiver is receiving or transmitting packets 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 Rear Panel LED POWER /FAULT State Description Solid green Power is being supplied and the chassis is operating normally. Flashing green System is booting up.
Chapter 1: Overview NET MGMT LED The NET MGMT LED are shown in Figure 6. LINK LED ACT LED Figure 6. NET MGMT LEDs The NET MGMT LEDs are described in Table 5. Table 5. NET MGMT LED Descriptions Location LED ACT (Right LED) Rear Panel LINK (Left LED) 26 State Description Solid green The NET MGMT port has established a link to a network device, but no packets are being transmitted or received. Flashing green The NET MGMT port is receiving or transmitting packets to a network device.
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 Front Panel LED FAN1 (top LED) FAN2 (bottom LED) State Description 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.
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 28 Location LED Power Supply Module Panel AC OK State Description Solid Green AC power is supplied to power supply. Off No AC power is supplied to power supply.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Console Port 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.
Chapter 1: Overview 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Chapter 1: Overview 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. Captive Screws Handles Intake Air Vents Figure 10.
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 33
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. Table 8.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Reviewing Safety Precautions Please review the following safety precautions before you begin to install the switch. Note The indicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements”. Warning Class 1 Laser product. L1 Warning Do not stare into the laser beam. L2 Warning Do not look directly at the fiber optic cable ends or inspect the cable ends with an optical lens.
Chapter 2: Beginning the Installation Warning Class I Equipment. This equipment must be earthed. The power plug must be connected to a properly wired earth ground socket outlet. An improperly wired socket outlet could place hazardous voltages on accessible metal parts. E4 Note Pluggable Equipment. The socket outlet shall be installed near the equipment and shall be easily accessible. E5 Caution Air vents must not be blocked and must have free access to the room ambient air for cooling.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Chapter 2: Beginning the Installation 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 Caution The unit does not contain serviceable components. Please return damaged units for servicing.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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 devices and are easily accessible. Verify that the site provides easy access to the ports on the back of the switch.
Chapter 2: Beginning the Installation 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 Note 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch AT-PWR06 Power Supply The contents of the AT-PWR06 power supply module shipping box are listed in Figure 12. One AT-PWR06 Power Supply Module One regional AC power cord Figure 12. Contents of the AT-PWR06 Power Supply Module Shipping Box Note The AT-DC2552XS switch can operate with one power supply module installed. You may elect to install a second power supply module for redundancy.
Chapter 2: Beginning the Installation AT-FAN06 Fan Module The contents of the AT-FAN06 fan module shipping box are listed in Figure 12. One AT-FAN06 FAN Module Figure 13. Contents of the AT-FAN06 Fan Module Shipping Box Note The AT-DC2552XS switch must have two fan modules installed for proper operation. Note 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.
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.
Chapter 3: Installing the Switch and Modules Installing the Switch on a Desktop To install the switch on a desktop, perform the following procedure: Note 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Installing the Switch in an Equipment Rack Note 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.
Chapter 3: Installing the Switch and Modules This procedure requires the following items: 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) Perform this procedure to install the switch in a 19-inch equipment rack: Note 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. 1.
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.
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.
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.
Chapter 3: Installing the Switch and Modules 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 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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Note 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.
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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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. Warning 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.
Chapter 3: Installing the Switch and Modules 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: Warning The chassis cooling is designed to operate with two fan modules operating together.
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.
Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables 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 hotswapped while the switch is powered on. For a SFP+ transceiver, you should always disconnect the fiber optic cable before removing a module.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables Figure 26. Installing a SFP+ Transceiver Note 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.
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 8. Repeat steps 6 and 7 for the cable installation into the remaining SFP+ transceivers that are installed.
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.
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.
Chapter 4: Installing the SFP+ and QSFP+ Transceivers and Cables 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.
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. Figure 34. Attaching a Fiber Optic Cable to an QSFP+ Transceiver 8. Repeat this procedure if you have other QSFP+ transceivers to install. Installing a QSFP+ MTHTP Cable Perform the following procedure to install a QSFP+ MTHTP cable: 1.
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.
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 65
Chapter 5: Powering the Switch 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: Note Power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord. E3 Warning Pluggable Equipment. The socket outlet shall be installed near the equipment and shall be easily accessible.
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 Turn Off the switch To turn off the AC power to the switch, perform the following procedure. Warning 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 69
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.
Stack Installation Guide for AT-2552XS L2 Data Center Switch Stop bits: 1 Flow control: None Note 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.
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.
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 74
Chapter 7 Troubleshooting This chapter contains suggestions on how to troubleshoot the switch if a problem occurs. Note 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.
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.
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 78
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 Table 12. Product Weights Model Specifications 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 Table 13.
Appendix A: Technical Specifications Power Specifications AT-PWR06 Input Specifications Table 14. AT-PWR06 Input Specifications Parameter Voltage Specifications Voltage: 100-240V AC (10% autoranging) Frequency Maximum Current 50/60 Hz per input 16A @ 100V Certifications Table 15.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 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.
Appendix A: Technical Specifications Table 18 lists the pin signals when a port operating at 1000 Mbps. Table 18.
Stack Installation Guide for AT-2552XS L2 Data Center Switch 83
Appendix A: Technical Specifications 84
