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Allied Telesis AT-DC2552XS manual

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Table of contents for the manual

  • Page 1

    613-001760 Rev. A AT-DC2552XS L2 Data Center Switch Installation Guide[...]

  • Page 2

    Copyright © 2013 Allied Telesis, Inc. All rights reserved. No part of this pub lication may be reproduced without prior wr itten permission from Al lied Telesis, Inc. Allied Telesis and th e Allied Telesis logo are trademarks of Allied Telesis, Incor porated . All other product names, company nam es, logos or other designations me ntioned herein a[...]

  • Page 3

    3 Electrical Safety and Emissions S tandards This product meets the following standards. RFI Emissions FCC Class A, EN55022 Class A, CISPR 22 Class A, VCCI Class A, C-TICK EMC (Immunity) EN55024, EN61000-3-2, EN61000-3-3 Electrical Safety EN60950-1 (TUV), UL 60950-1 ( C UL US ) U.S. Federal Communications Commission Radiated Energy Note: This equip[...]

  • Page 4

    4 T ranslated Safety S tatements Important: The  indicates that translations of t he safety statement are available in the PDF document “ Translated Safety Statements ” post ed on the Allied Telesis we bsite at www.alliedtelesis.com.[...]

  • Page 5

    5 Preface ........................ ........... ........... ........... ............ ........... .............. ........... ........... ........... .................... ........... ............ ......11 Document Conventions .............. ........... .............. ............ .............. ........... ........... .............. ...... ...........[...]

  • Page 6

    Contents 6 Chapter 6: Mana ging the Switch .......... ........... .............. ............ ........... ........... ........... ........... ............ .............. .......... ..... 69 Local Management .............. .......................................... .......................................... ............. ....... ........... ........[...]

  • Page 7

    7 Figure 1: AT-DC2552XS Front Panel View ................... ... ........... ........... .............. ............ ........... ........ ......... .............. .......... 19 Figure 2: AT-DC2552XS Rear Panel ..................... ..... ............ ........... .............. ........... ........... .......... ....... .............. ........... ..[...]

  • Page 8

    Figures 8[...]

  • Page 9

    9 Ta b l e s Table 1: Twisted Pa ir Cable Specifications for the NET MGMT Port ........................ ........... ........... ............ .... . .............. ..... 22 Table 2: SFP+ Slot LED ........... ........... .............. ........... .............. ........... .............. ............ ...... .......... ............ .............. ...[...]

  • Page 10

    Tables 10[...]

  • Page 11

    11 Pr eface This guide contains instructions on ho w to install the AT-DC255 2XS 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 f ollowing sections:  “Document Conventions” on p age 12  “Contacting Allie d T elesis” on p age 13[...]

  • Page 12

    Preface 12 Document Conventions This document uses the following conventions: Note Notes provide additional informatio n. Caution Cautions inform you t hat performing or omitting a specific action may result in equipment damage or loss of data. Warning Warnings inform you that performing or omitting a sp ecific action may result in bodily injury.[...]

  • Page 13

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 13 Contacting Allied Telesis If you need assistance with this prod uct, you may contact Allied Telesis technical support by going to the Suppo rt & Services section of the Allied Telesis web site at www.alliedtelesis.com/support . You can find links for the following services on this[...]

  • Page 14

    Preface 14[...]

  • Page 15

    15 Chapter 1 Overview This chapter contains the following sections:  “A T -DC2 552XS Features” on p age 16  “LEDs” on page 23  “Console Port” on pag e 29  “A T -PWR06 Power Sup ply Module” on p age 30  “A T -F AN06 Fa n Module” on p age 32[...]

  • Page 16

    Chapter 1: Ove rview 16 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 followin g sections: AT-DC2552XS Functions A list of the AT-DC2552XS switch’s functions is as follows: Ports You will f[...]

  • Page 17

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 17 Installation Options The AT-DC2552XS L2 Data Center Switch is designed to b e 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 f an modules and at least one power supply module installed. You may el[...]

  • Page 18

    Chapter 1: Ove rview 18 Optional QSFP+ Transceivers The following QSFP+ transceivers direct attach cable assemblies ha ve 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 A[...]

  • Page 19

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 19 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 shipp ed[...]

  • Page 20

    Chapter 1: Ove rview 20 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 th e 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 requi red [...]

  • Page 21

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 21 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 suppo rts comm unication speeds up to 10Gbps. The switch supports a variety of 10G SFP+ [...]

  • Page 22

    Chapter 1: Ove rview 22 “Power/Fault LED” on page 25 for the funct ional description.  Console Port - The console port is a standard RS-232 interface using an USB interface. This port provides the capa bility to manage the configuration a nd firmware of the switch locally independent from the Ethernet netwo rk. Refer to “Connecting the Con[...]

  • Page 23

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 23 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 th e upper SFP+ slot while the triangle LED pointing down shows the status of the lower SFP+ [...]

  • Page 24

    Chapter 1: Ove rview 24 QSFP+ Slot LEDs Each QSFP+ port has one link/activit y 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 St ate Description Link/Activity Solid green The QSFP+ transceiver has est ablished a link to a network device. Flashing green The Q[...]

  • Page 25

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 25 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 De scription Location LED St ate Description Rear Panel POWER /F AUL T Solid green Power is being supplied and the chassis is ope[...]

  • Page 26

    Chapter 1: Ove rview 26 NET MGMT LED The NET MGMT LED are shown in Figure 6. Figure 6. NET MGMT LEDs The NET MGMT LEDs are described in Table 5. LINK LED ACT LED Table 5. NET MGMT LED Descriptions Location LED St ate Description Rear Panel ACT (Right LED) Solid green The NET MGMT port has est ablished a link to a network device, but no p ackets are[...]

  • Page 27

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 27 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 Stat us LED Descriptions Location LED St ate Description Front Panel FA N 1 (top LED) Solid Green Fan operating normally . Solid Red Fan is [...]

  • Page 28

    Chapter 1: Ove rview 28 AC Power LED Each AT-PWR06 power supply modul e 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 St ate Description Power Supply Module Panel AC OK Solid Green AC power is supplied to power supply . Off No[...]

  • Page 29

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 29 Console Port The Console port is used to locally configure the fea tures and parameter settings of the switch. See Figure 2 o n page 20 for the location of the Console port. This type of man agem ent uses serial RS-232 and is commonly referred to as local or out-of-band mana gement be[...]

  • Page 30

    Chapter 1: Ove rview 30 AT-PWR06 Power Supply Module The AT-DC2552XS L2 Data Center Switch is powered by one AT-PWR06 power supply module. A second AT-P WR06 power supply module may be installed for redundancy. The power supply mo dule has an AC connecto r on the power supply module panel and is in stalled by the user in slot PS1 or slot PS2. The l[...]

  • Page 31

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 31 The components of the AT-PWR06 power su pply 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?[...]

  • Page 32

    Chapter 1: Ove rview 32 AT-FAN06 Fan Module Installation of two AT-FAN06 fan mod ules are required in the AT-DC2552XS. Each AT-FAN06 fan modu le is equipped with two, force d air cooling fans The fans push air through the chassis from the front to the rear. The AT-FAN06 fan module is ordered an d shipped separately from the AT-DC2552XS L2 Data Cent[...]

  • Page 33

    33 Chapter 2 Beginning the Installation The chapter contains the following sections:  “Installation Overview” on p age 34  “Reviewing Safety Precautions” on p age 35  “Planning the Installation” on p age 39  “Unpacking th e Switch” on p age 40[...]

  • Page 34

    Chapter 2: Be ginning the Install ation 34 Installation Overview Table 8 lists the installation proced ures for the AT-DC2552XS L2 Data Center Switch. The procedures should be perfo rmed in the order presented in the table. T able 8. Installation Procedures Step Pro cedure 1 “Reviewing Safety Precautions” on p age 35 2 “Planning the Inst alla[...]

  • Page 35

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 35 Reviewing Safety Precautions Please review the followin g safety precautions befor e you begin to install the switch. Note The  indicates that a transla tion of the safety statement is available in a PDF document title d “ Translated Safety Statements ”. Warning Class 1 Laser p[...]

  • Page 36

    Chapter 2: Be ginning the Install ation 36 Warning Class I Equipment. This equipment must be earthed. Th e power plug must be connected to a properly wired earth ground socket outlet. An improperly wired socket out let could place hazardous voltages on accessib le metal p arts.  E4 Note Pluggable Equipment. The socke t outlet shall be inst alled[...]

  • Page 37

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 37 Caution Risk of explosion if battery is re placed by an incorrect type. Replace only with the same or equivalent type recommended b y the manufacturer. Dispose of used batter ies according to the manufacturer’s instructions. Attention: Le remplacement de la batterie par une batterie[...]

  • Page 38

    Chapter 2: Be ginning the Install ation 38 Warning Reliable earthing of rack-mounted equipment should be maint ained. Particular attention should be give n to supply connections other than direct connections to the branch circuit s (e.g., use of power strip s).  E37 Caution The unit does not cont ain serviceable component s. Please return damage[...]

  • Page 39

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 39 Planning the Installation The AT-DC2552XS L2 Data Center Switch can be installe d 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 locate d near the devices[...]

  • Page 40

    Chapter 2: Be ginning the Install ation 40 Unpacking the Switch Refer to the following figures in this section to verif y the contents of the shipping containers:  ”A T -DC2552XS Switch”  “A T -PWR06 Power Supply” on pag e 41  “A T -F AN06 Fan Module” on page 42 Note If any item in a shipping container is missing or damaged, co[...]

  • Page 41

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 41 AT-PWR06 Power Supply The contents of the AT-PW R06 pow er supply module shipping box are listed in Figure 12. Figure 12. Contents of the AT- PWR06 Power Supply Module Shipping Box Note The AT-DC2552XS switch can operate wit h one power supply module installed. You may elect to instal[...]

  • Page 42

    Chapter 2: Be ginning the Install ation 42 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 Note The AT-DC2552XS switch must have two fan modules in stalled for proper operation. Note The AT-FAN06 fan module is sold and packaged separately f[...]

  • Page 43

    43 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 add ition, you must install at least one AT-PWR06 power supply module and tw o AT-FAN06 fan modu les in the switch chassis. Here are the installation procedures in this chapter:  “Installing the Switch [...]

  • Page 44

    Chapter 3: Inst alling the Switch and Modu les 44 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 “In stalling the Switch in an Equipment Rack” on page 45. 1. Remove all equipment from t he package a nd store the packaging material in a safe p[...]

  • Page 45

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 45 Installing the Switch in an Equipment Rack Note To install the switch on a d esktop, refer to “Installin g 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 p[...]

  • Page 46

    Chapter 3: Inst alling the Switch and Modu les 46 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 provid ed)  Four standard equipment rack screws (not provid ed) Perform this procedure to install the switch [...]

  • Page 47

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 47 2. Have another person hold the switch in the e quipment rack while you secure it using standard rack mount screws (no t provided). Figure 17. Mounting the Switch in an Equipme nt Rack[...]

  • Page 48

    Chapter 3: Inst alling the Switch and Modu les 48 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 supp[...]

  • Page 49

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 49 Caution The PSU blank cover should be inst alled if an A T -PWR06 power sup- ply module is not present in the chassis. This blank cover assures that the correct airflow acro ss the component s in the chassis when a power supply module is not inst al led. See “Inst alling Power Suppl[...]

  • Page 50

    Chapter 3: Inst alling the Switch and Modu les 50 5. Tighten the captive screws to f asten 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 proce ss is installing the fan modules. Go to “Installing Fan Module” on page 52 f or the installation procedure. Rep[...]

  • Page 51

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 51 Note If a new AT-PWR06 power supply module is no t available to replace the module you are removin g, perform the procedure outlined in “Installing Power Supply Blank Cover” on page 5 1. 4. Slowly insert the new AT-PWR06 power supply module into the PSU slot until it is flush with[...]

  • Page 52

    Chapter 3: Inst alling the Switch and Modu les 52 Installing and Replacing AT-FAN06 Fan Module The following procedures are included in t his section:  “Installing and Rep lacing A T -F AN06 Fan Module” on p age 52  “Replacing Fan Module” on p age 54 The AT-FAN06 fan module is hot swappable within the chassis. Installing Fan Module Pe[...]

  • Page 53

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 53 4. Tighten the captive screws to fasten the fan module to the ch assis. See Figure 23. Figure 23. Tighten AT-FAN06 Ca ptive Screws 5. Repeat steps 1 through 4 to insta ll the second fan module in to Fan 2 (right) slot. Warning To operate this product, two fan module s must be installe[...]

  • Page 54

    Chapter 3: Inst alling the Switch and Modu les 54 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 t he fan modules is replaced. The following procedure assume s a second AT-FAN06 fan module is already installed and operating. Perform the following procedure to rep[...]

  • Page 55

    55 Chapter 4 Installing the SFP+ and QSFP+ T ransceivers and Cables The list of approved SFP+ and QSFP+ transceivers a nd direct connect cables that may be installed in the AT-DC2552XS chassis are given in “Optional SFP+ Transceivers” on page 17 and “Option al QSFP+ Transceivers” on page 18. This chapter contains the following pro cedures: [...]

  • Page 56

    Chapter 4: Installi ng the SFP+ and QSFP+ Transcei vers and Cables 56 Installing SFP+ Transceivers and Cables General Guidelines Review the following guidelines before installing optional SFP+ transceivers or SFP+ direct attach cables in the swit ch:  SFP+ transceivers and SFP+ direct attach cables can be h ot- swapped while the switch is powere[...]

  • Page 57

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 57 Installing SFP+ Transceiver Perform the following procedure to inst all 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 pac[...]

  • Page 58

    Chapter 4: Installi ng the SFP+ and QSFP+ Transcei vers and Cables 58 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 step s 1 to 5 to install the remaining SFP+ transceivers in the cha ssis. Do not remove the dust cover from the instal[...]

  • Page 59

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 59 7. Refer to Table 9 on page 56 for the recommende d fiber optic cable. Insert the cable to the port on th e 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 i[...]

  • Page 60

    Chapter 4: Installi ng the SFP+ and QSFP+ Transcei vers and Cables 60 2. Remove the SFP+ direct atta ch cable from its shipping container and store the packaging mate rial in a safe location. 3. If you are installing the dire ct attach cable in a top SFP+ slot, position it with the Allied Telesis label and tab facing up. If you are installing t he [...]

  • Page 61

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 61 Installing QSFP+ Transceivers and Cables Review the following guidelines before installin g optional QSFP+ transceivers i n 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 r[...]

  • Page 62

    Chapter 4: Installi ng the SFP+ and QSFP+ Transcei vers and Cables 62 Figure 31. Removing QSFP+ Slot Dust Co ver 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 [...]

  • Page 63

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 63 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+ Transce iver 8. Repeat this procedure if you have other QSF P+ transceivers to ins[...]

  • Page 64

    Chapter 4: Installi ng the SFP+ and QSFP+ Transcei vers and Cables 64 Figure 35. Removing QSFP+ Slot Dust Co ver 3. If you are installing the QSFP+ MTHTP cable in the to p QSFP+ slot, position the cable with the tab facin g up. If you are installing the module in the bottom slot, position the cable with the tab facing down. 4. Slide the module into[...]

  • Page 65

    65 Chapter 5 Powering the Switch The procedures in this chapter are listed he re:  “Powering On the Switch” on page 66  “T urn Off the switch” on p age 68[...]

  • Page 66

    Chapter 5: Po wering the Switch 66 Powering On the Switch The power turns on automatica lly w hen you connect the power cable to one or both of the AT-PWR06 power supply mo dules. To power on the switch, perform the following procedure: Note Power cord is used as a disconnection device. T o de-e nergize equipment, disconnect the powe r cord.  E3[...]

  • Page 67

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 67 6. The next step in the installa tion process is to access the AT-DC2552XS management interface. Go t o Chapter 6, “Connecting the Console Port” on page 70 for instructions on connecting to the Console port.[...]

  • Page 68

    Chapter 5: Po wering the Switch 68 Turn Off the switch To turn off the AC power to the swit ch, perform the following procedure. Warning Power cord is used as a disconnection device. T o de-e nergize equipment, disconnect the powe r cord.  E3 1. Disconnect the power plug from t he power outlet. If you have two AT- PWR06 power supply modules inst[...]

  • Page 69

    69 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 pro cedures to manage th e switch:  “Local Management” on pag e 70  [...]

  • Page 70

    Chapter 6: Managin g the Switch 70 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 becau se the management sessions are not connected over your Ethernet ne twork. The requirement s for local management are [...]

  • Page 71

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 71  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. Y ou are prompted for a user name and password. 5. When prompted, enter a user name and password to log on the switch. If th[...]

  • Page 72

    Chapter 6: Managin g the Switch 72 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 p[...]

  • Page 73

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 73 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[...]

  • Page 74

    Chapter 6: Managin g the Switch 74[...]

  • Page 75

    75 Chapter 7 T r oubleshooting This chapter contains suggestions on ho w to trou bleshoot the switch if a problem occurs. Note For further assistance, please contact Allied Te lesis Technical Support. Refer to “Contacting Allied Telesis” on page 13. Problem: The NET MGMT twisted pair port on the switch is connecte d to a network device but the [...]

  • Page 76

    Chapter 7: Tro ubleshooting 76  Verify that the operating specificat ions 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 possibilit[...]

  • Page 77

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 77  If the remote network device is a manage d device, use its management firmware to determine wheth er its port is enabled.  Test the attenuation on the fiber optic cable with a fib er optic tester to determine whether the input optical signal is too weak (sensitivity) or too str[...]

  • Page 78

    Chapter 7: Tro ubleshooting 78[...]

  • Page 79

    79 Appendix A T echnical Specifications This appendix contains the te chnical specifications for the AT-DC2552XS L2 Data Center Switch. Physical Specifications Dimensions (H x W x D) Weights Environmental Specifications Table 11. Product Dimensions Model Specification AT-DC2552XS 440 x 460 x 44 mm (17.32 x 18.11 x 1.73 inch ) Table 12. Product Weig[...]

  • Page 80

    Appendix A: Technica l Specifications 80 Power Specifications AT-PWR06 Input Specifications Certifications Quality and Reliability 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 Table 15. Product Certifications Parameter Specif[...]

  • Page 81

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 81 RJ-45 Twisted Pair Port Pinouts Figure 39 illustrates the pin lay out of an RJ-45 connector and port. Figure 39. RJ-45 Connector and Port Pin L ayout Table 17 lists the pin si gnals for 10 and 100 Mbps. Table 17. Pin Signals for 10 and 100 Mb ps Pin MDI Signal MDI-X Signal 1T X + R X [...]

  • Page 82

    Appendix A: Technica l Specifications 82 Table 18 lists the pin signals when a p ort operating at 1000 Mb ps. Table 18. Pin Signals - 1000 Mbps Pinout Pair 1P a i r 1 + 2P a i r 1 - 3P a i r 2 + 4P a i r 3 + 5P a i r 3 - 6P a i r 2 - 7P a i r 4 + 8P a i r 4 -[...]

  • Page 83

    Stack Installation Guide for AT-2552XS L2 Data Ce nter Switch 83[...]

  • Page 84

    Appendix A: Technica l Specifications 84[...]