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Parameter

Specifications

Reliability

MTBF 355,178 hours

NOTE: The table below represents the DC PSU’s capabilities and does not represent S4820T 
operation.

The power supply operates within all specified limits over the following input voltage range.

Table 9. DC Input Specification

Parameter

Specifications

Min/max input voltage range

−40.5V /−48V/ −60V

Maximum power consumption
Typical power consumption

800 Watts
338 Watts

Input power at full load

−40.5V/970W −48V/930W −60V/950W (without 

fans)

−40.5V/980W −48V/940W −60V/960W (with fans)

Input current at full load

−40.5V/23.8A −48V/19.0A −60V/15.6A (without 

fans)

−40.5V/24A −48V/19.2A −60V/16.0A (with fans)

Start up VDC

39.0 +/− 1.5V

Start off VDC 37.5

37.5 +/− 1.5V

IEEE Standards

The S4820T switch complies with the following IEEE standards:

• 802.1AB LLDP
• 802.1ag Connectivity fault Management
• 802.1D Bridging, STP
• 802.1p L2 Prioritization
• 802.1Q VLAN Tagging, Double VLAN Tagging, GVRP
• 802.1s MSTP
• 802.1w RSTP
• 802.3ab Gigabit Ethernet (1000BASE-T)
• 802.3ac Frame Extensions for VLAN Tagging
• 802.3ad Link Aggregation with LACP
• 802.3ae 10 Gigabit Ethernet (10GBASE-X)
• 802.3ba 40 Gigabit Ethernet (40GBase-SR4, 40GBase-CR4) on optical ports
• 802.3u Fast Ethernet (100BASE-TX)
• 802.3x Flow Control
• 802.3z Gigabit Ethernet (1000BASE-X)
• ANSI/TIA-1057 (LLDP-MED)

48

Technical Specifications

Summary of Contents for S4820T

Page 1: ...Installing the S4820T System April 2014 ...

Page 2: ...problem WARNING A WARNING indicates a potential for property damage personal injury or death Copyright 2014 Dell Inc All rights reserved This product is protected by U S and international copyright and intellectual property laws Dell and the Dell logo are trademarks of Dell Inc in the United States and or other jurisdictions All other marks and names mentioned herein may be trademarks of their res...

Page 3: ...4 Install the Hardware 17 Unpacking the Switch 17 Install the Chassis 18 Rack Mounting Safety Considerations 18 Install the Dell ReadyRails System 19 Installing ReadyRails Tool less Method 20 Installing ReadyRails Two Post Flush Mount Configuration 21 Installing ReadyRails Two Post Center Mount Configuration 23 Installing ReadyRails Four Post Threaded Configuration 23 Attaching Switch Rails to the...

Page 4: ...232 45 Default Configuration 46 10 Technical Specifications 47 IEEE Standards 48 11 Agency Compliance 51 Network Equipment Building Systems NEBS Compliance 51 USA Federal Communications Commission FCC Statement 51 Canadian Department of Communication Statement 52 European Union EMC Directive Conformance Statement 52 European Community Contact 52 Japan VCCI Compliance for Class A Equipment 52 Korea...

Page 5: ...st straps when handling this equipment WARNING Only trained and qualified personnel can install this equipment Read to this guide before you install and power up this equipment This equipment may contain two power cords Disconnect both power cords before servicing WARNING This equipment contains optical transceivers which comply with the limits of Class 1 laser radiation WARNING When no cable is c...

Page 6: ...tion For more information about the S4820T system refer to the following documents Table 1 S4820T Documents Information Documentation Software configuration FTOS Configuration Guide for the S4820T System Command line interface FTOS Command Line Reference Guide for the S4820T System Latest updates FTOS Release Notes for the S4820T System 6 About this Guide ...

Page 7: ...ing fabric in the core The S4820T has 48 ports of RJ 45 10GBase T and four ports of 40Gbps with features and functions similar to the S4810 product The S4820T power supply unit PSU side shown in the following figure contains the PSU fan modules and console ports Figure 1 S4820T PSU Side View 1 PSU 1 2 Fan Modules 3 PSU 2 The S4820T input output I O side shown in the following figure contains the 4...

Page 8: ...e possibility of splitting 40GbE quad small form factor pluggable plus QSFP uplinks into four 10GbE SFP or RJ 45 connections the S4820T switch is perfectly positioned to help transition a data center with multiple speed requirements Additionally the S4820T solution is optimized to provide 10Gbps throughput for distances of up to 330 feet 100 meters over Cat6 6A and 7 shielded copper cable and Cat6...

Page 9: ...t Removable fan that you can manage Standard 1U chassis high Physical Dimensions The S4820T has the following physical dimensions 434 x 460 x 43 5 mm W x D x H 17 09 x 18 11 x 1 71 inches W x D x H Chassis Ports The following is a list of the standard ports located on each S4820T chassis Serial RS 232 port RJ 45 type Out of band Ethernet management port RJ 45 type Forty eight 1 10Gbps RJ 45 ports ...

Page 10: ... 3 Stack LED Blue Green 4 Locator LED Blue 5 FAN LED Green Red 6 System LED 7 Link LED Green Yellow 8 Activity LED Blinking Green Table 1 provides a detailed description of each LED for the S4820T system Table 2 System LED Displays Feature LED Color Display Comment System LED Solid blue Normal Operation Blinking blue Booting Solid red Critical system error Blinking red Non critical system error fa...

Page 11: ...temperature threshold is 75 C When one of the thermal sensors exceeds this temperature the TEMP LED turns RED Table 3 10GBT Ethernet Port LEDs Feature LED Color Display Link LED Off No Link Solid green Link on 10Gbps speed Solid Amber Link on 100M or 1Gbps speeds Activity LED Off No Link Blinking green Transmit Receive is active Table 4 QSFP Port LEDs Feature LED Color Display Link LED Off No Link...

Page 12: ... airflow from power supply side to I O side S4820T AC Normal Airflow 48 port 10G RJ 45 ports with 4 QSFP 40G ports 1 DC power supply and 2 fan subsystems airflow from I O side to power supply side S4820T AC Reverse Airflow 48 port 10G RJ 45 ports with 4 QSFP 40G ports 1 DC power supply and 2 fan subsystems airflow from power supply side to I O side S4820T Series Fan with airflow from the I O side ...

Page 13: ...ollowing safety requirements Near an adequate power source Connect the system to the appropriate branch circuit protection as defined by your local electrical codes Environmental temperature between 32 to 104 F from 0 to 40 C Relative humidity that does not exceed 85 noncondensing In a dry clean well ventilated and temperature controlled room away from heat sources such as hot air vents or direct ...

Page 14: ... acceptable ambient temperature ranges are listed in Technical Specifications The fan speed increases when the internal temperature reaches 72 C and decreases to normal speed when the temperature falls to 58 C The switch never intentionally turns off the fans To see the log messages use the show logging command For more information refer to the System Logs chapters of the FTOS Command Line Referen...

Page 15: ...all optional components until you are ready to install them WARNING Electrostatic discharge ESD damage can occur when components are mishandled Always wear an ESD preventive wrist or heel ground strap when handling the S4820T and its accessories After you remove the original packaging place the S4820T and its components on an antistatic surface Follow these storage guidelines Storage temperature m...

Page 16: ...16 ...

Page 17: ...not exceed 85 percent Altitude at the installation site is below 6600 feet You install the switch in an environment as free as possible from dust and foreign conductive material such as metal flakes from construction activities Cooling mechanisms such as fans and blowers in the switch can draw dust and other particles causing contaminant buildup inside the chassis which can result in system malfun...

Page 18: ... an electrostatic discharge ESD preventive wrist or heel ground strap when handling the S4820T and its components As with all electrical devices of this type take necessary safety precautions to prevent injury when installing this system ESD damage can occur if components are mishandled WARNING This is a condensed reference Read the safety instructions in your Safety Environmental and Regulatory i...

Page 19: ...on booklet before you begin NOTE The illustrations in this document are not intended to represent a specific switch Install the Dell ReadyRails System Dell Networking provides the ReadyRails rack mounting system so you can easily configure a rack to install the S4820T switch You can install the ReadyRails system using the 1U tool less method or one of three possible 1U tooled methods two post flus...

Page 20: ...n shows how the pegs appear in both the square and unthreaded round holes Figure 4 Tool less Configuration 2 Align and seat the front flange pegs in the holes on the front side of the vertical post as shown in item 1 in the figure 3 Align and seat the rear flange pegs in the holes on the rear side of the vertical post as shown in item 2 in the figure 4 Repeat this procedure for the second rail 5 T...

Page 21: ...Installing ReadyRails Two Post Flush Mount Configuration For this configuration remove the castings from the front of each ReadyRails assembly Install the Hardware 21 ...

Page 22: ...t flange ear on the switch side of the rail with a Torx driver 2 Attach one rail to the front post flange with two user supplied screws as shown in item 2 in the figure Figure 5 Two post Flush mount Configuration 3 Slide the plunger bracket forward against the vertical post and secure the plunger bracket to the post flange with two user supplied screws as shown in item 3 in the figure 4 Repeat thi...

Page 23: ...the following figure Figure 6 Two post Center mount Configuration 2 Slide the back bracket towards the post and secure it to the post flange with two user supplied screws as shown in item 2 in the figure 3 Repeat this procedure for the second rail Installing ReadyRails Four Post Threaded Configuration For this configuration remove the flange ear castings from each end of the ReadyRails assemblies ...

Page 24: ...the two screws from each flange ear and remove each casting with a Torx driver as shown in item 1 in the figure 2 For each rail attach the front and rear flanges to the post flanges with two user supplied screws at each end as shown in items 2 and 3 in the following figure Figure 7 Four post Threaded Configuration 24 Install the Hardware ...

Page 25: ... in the same manner as the four post configurations 1 Attach the switch rails inner chassis members to the S4820T switch as shown in item 1 in the following figure Item 2 in the figure shows the detail for the front standoff with the locking tab Figure 8 Attaching the Switch Rails 2 After you have installed both switch rails line them up on the previously mounted Ready Rails and slide the switch i...

Page 26: ...r an ESD preventive wrist or heel ground strap when handling the S4820T and its components WARNING When working with optical fibres follow all the warning labels and always wear eye protection Never look directly into the end of a terminated or unterminated fibre or connector as it may cause eye damage 1 Position the optic so it is in the correct position The optic has a key that prevents it from ...

Page 27: ...er L2 L3 feature configurations For the split port change to take effect reload the system after issuing the command Save your configuration Splitting QSFP Ports to SFP or RJ 45 Ports The S4820T supports splitting a single 40G QSFP port into four 10G SFP ports or four 10G RJ 45 using one of the supported breakout cables For the system to recognize the port type change enter the stack unit portmode...

Page 28: ...28 ...

Page 29: ...using power supply 1 PSU1 as the blank plate slot When running with full redundancy two power supplies installed and running you can remove and replace one PSU while the other PSU is running without disrupting traffic The PSUs are in a single piece with the PSU fans You can replace the fan trays individually but you cannot replace the fans that are attached to the PSUs if the fans attached to the ...

Page 30: ...h the safety cover removed CAUTION Remove the power cable from the PSU prior to removing the PSU Also do not connect the power cable before you insert the PSU in the chassis CAUTION The DC PSU comes with a 6 8 inch power cord with a snap in plug that attaches to the DC power supply and screw terminals that attach to the main power To ensure sufficient room Dell Networking recommends using a longer...

Page 31: ...ng power supply 1 PSU1 as the blank plate slot 1 Disconnect the power cable from the PSU 2 Use the grab handle to slide the PSU out of the power supply bay 3 Use the grab handle on the replacement PSU to slide it into the power supply bay 4 Tighten the securing screws on the replacement PSU with a screwdriver Ensure that the PSU is secure 5 Attach the power cord to the replacement PSU The system p...

Page 32: ...de screwdriver to tighten the screws that secures the bare wires into the wiring block 4 Secure the site s DC power source wires to the other side of the wiring block See steps 1 and 3 WARNING Do not cross the wires In the wiring block red should align with red and black should align with black Refer to the figure 5 Insert the DC power connector into the power socket of the S4820T DC PSU Make sure...

Page 33: ...nector from an S4820T DC PSU squeeze together the levers on both sides of the connector Doing so disengages the power connector s clamps While continuing to squeeze pull the power connector from the DC PSU socket Power Supplies 33 ...

Page 34: ...34 ...

Page 35: ...dules separately The S4820T supports two airflow direction options Do not mix airflow types in a chassis you can use only a single airflow direction in a chassis If the airflow directions are mismatched the S4820T powers down in one minute Normal airflow is from the I O panel to the PSU Reversed airflow is from the PSU to the I O panel Environmental factors can decrease the amount of time required...

Page 36: ...te 00 02 19 S4820T 0 CHMGR 2 PSU_TYPE_AIRFLOW_MISMATCH Mismatching PSU airflow detected Unit 0 shall get shutdown in next 60 seconds if mismatch not rectified 00 02 19 STKUNIT0 M CP CHMGR 1 PSU_AIRFLOW_COMBO_MISMATCH Major alarm Mismatching PSU airflow detected in unit 0 CAUTION Check the fans at six month intervals and replace them as necessary To accurately determine replacement intervals regula...

Page 37: ...All protective covers are in place NOTE A country region specific AC power cable is included in the shipping container for powering up an AC power supply You must order all other power cables separately CAUTION ESD damage can occur if the components are mishandled Always wear an ESD preventive wrist or heel ground strap when handling the S4820T and its components CAUTION Ensure that the PSU is ins...

Page 38: ...38 ...

Page 39: ...47 The lower QSFP ports are labeled 48 and 56 The upper QSFP ports are labeled 52 and 60 NOTE Data center bridging DCB is not supported if you use ports 0 to 47 for stacking Important Points to Remember When stacking the S4820T ensure that You configure data ports as stacking ports in predefined stacking groups of 40G four 10G ports or one 40G port When you assign a stack group number you configur...

Page 40: ...e following figure To provide redundant connectivity Dell Networking recommends using the ring topology when stacking S4820T systems Connecting Two S4820T Systems CAUTION Use only Dell Networking supported stacking cables to connect S4820T systems To provide backup connectivity and increased data transfer between the systems Dell Networking recommends inserting an additional cable between the two ...

Page 41: ...nsert the other end of the same cable into stack port 52 on chassis 2 top 3 Insert a second cable into stack port 56 on chassis 2 top 4 Insert the other end of the second cable into stack port 56 on chassis 1 bottom Connecting Three S4820T Systems CAUTION Use only Dell Networking supported stacking cables to connect S4820T systems To provide backup connectivity and increased data transfer between ...

Page 42: ...d of the cable into stack port 56 on chassis 1 bottom and the other end of the cable into stack port 60 on chassis 3 top Hot Swap Units in a Stack When you hot swap stacked units the following concepts apply You can add remove or swap S4820T units in an existing stack while units are powered up or while they are off The order in which the units come on line or the order in which you add or remove ...

Page 43: ...ing configuration file in each unit includes the awareness of the new unit If you have a pre configured unit that you want to add to the stack but you want to ensure that the unit s configuration does not override the stack configuration add the unit while it is powered down to avoid stack management conflicts For more information about removing a unit from a stack and other stacking commands refe...

Page 44: ...44 ...

Page 45: ... terminal emulation program already installed on your PC The following table lists the console port pinout assignments NOTE If your PC s serial port cannot accept a female DB 9 connector acquire a DB 9 male to male adaptor To access the console port follow these steps 1 Install an RJ 45 copper cable into the console port To connect the S4820T console port to a terminal server use a rollover cable ...

Page 46: ...version of FTOS is preloaded onto the S4820T however the system is not configured when you power up for the first time except for the default host name which is FTOS You must configure the system using the CLI 46 Console Ports ...

Page 47: ...ght 21 7 lbs 9 86 kg Table 7 Environmental Parameters Parameter Specifications Operating temperature 32 to 113 F 0 to 45 C Storage temperature 40 to 158 F 40 to 70 C Relative humidity Storage humidity 5 to 90 percent non condensing 5 to 95 percent non condensing Maximum thermal output 1153 265 BTU hr Maximum altitude No performance degradation to 10 000 feet 3 048 meters Shock Meets Bellcore Zone ...

Page 48: ...ll load 40 5V 23 8A 48V 19 0A 60V 15 6A without fans 40 5V 24A 48V 19 2A 60V 16 0A with fans Start up VDC 39 0 1 5V Start off VDC 37 5 37 5 1 5V IEEE Standards The S4820T switch complies with the following IEEE standards 802 1AB LLDP 802 1ag Connectivity fault Management 802 1D Bridging STP 802 1p L2 Prioritization 802 1Q VLAN Tagging Double VLAN Tagging GVRP 802 1s MSTP 802 1w RSTP 802 3ab Gigabi...

Page 49: ... Dell Networking PVST MTU 12 000 bytes Technical Specifications 49 ...

Page 50: ...50 ...

Page 51: ...es These limits are designated 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 If it is not installed and used in accordance to the instructions it may cause harmful interference to radio communications Operation of this equipment in a residential area is li...

Page 52: ...ds This product has been tested and found to comply with the limits for Class A Information Technology Equipment according to CISPR 22 European Standard EN 55022 The limits for Class A equipment were derived for commercial and industrial environments to provide reasonable protection against interference with licensed communication equipment WARNING This is a Class A product In a domestic environme...

Page 53: ...y Information Technology Equipment VCCI If this equipment is used in a domestic environment radio disturbance may arise When such trouble occurs the user may be required to take corrective actions Korean Certification of Compliance Korean Package Label Safety Standards and Compliance Agency Certifications CUS UL 60950 1 Second Edition CSA 60950 1 03 Second Edition EN 60950 1 Second Edition EN 6082...

Page 54: ...N 61000 4 5 Surge EN 61000 4 6 Low Frequency Conducted Immunity Product Recycling and Disposal You must recycle or discard this system according to applicable local and national regulations Dell Networking encourages owners of information technology IT equipment to responsibly recycle their equipment when it is no longer needed Dell Networking offers various product return programs and services in...

Page 55: ...ling and recovery of WEEE Customer participation is important to minimize any potential effects of EEE on the environment and human health due to the potential presence of hazardous substances in EEE Dell Networking products which fall within the scope of the WEEE are labeled with the crossed out wheelie bin symbol as shown above as required by WEEE For information on Dell Networking product recyc...

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Page 57: ...20 Main Login aspx You must have a userid and password to access iSupport services 1 On the Dell Networking Support page click the Account Request link 2 Fill out the User Account Request form and click Send You will receive your userid and password by E mail 3 To access iSupport services click the LOGIN link and enter your userid and password Contacting the Technical Assistance Center How to Cont...

Page 58: ... syslog server if you use one Managing Your Case Log in to iSupport and select theService Request tab to view all open cases and return materials authorizations RMAs Downloading Software Updates Log in to iSupport and select the Software Center tab Technical Documentation Log in to iSupport and select the Documents tab You can access this page without logging in using the Documentation link on the...

Page 59: ...on when using E mail or phone Part number description and serial number of the component Your name organization name telephone number fax number and E mail address Shipping address for the replacement component including a contact name phone number and E mail address A description of the failure including log messages This can include Output from the show tech support command This report is very l...

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