Dell B-FCX manual Managing temperature settings, Using the temperature sensor

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Chapter

Managing the PowerConnect B-FCX Hardware

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CAUTION

The procedures in this manual are for qualified service personnel.

Managing temperature settings

This section describes how to display temperature settings on the device and how to change the temperature warning and shutdown levels.

Using the temperature sensor

The device ships with three built-in temperature sensors that cause the device to generate a Syslog message and SNMP trap if the temperature exceeds a specified warning level or shutdown level. If the device temperature exceeds the safe threshold (shutdown level), the device will reboot.

The software reads the temperature sensors based on the device poll time, which is by default 60 seconds. If the temperature equals or exceeds the shutdown temperature for five consecutive polls by the software, the software will reboot the device to prevent damage.

You can use the CLI or Web management interface to perform the following tasks:

Display the temperature of the device

Change the warning and shutdown temperature levels

Change the device poll time

Displaying the temperature

By default, the software polls the temperature sensor every 60 seconds to get the current temperature. This poll rate is controlled by the device poll time, which also controls how often the software polls other system components.

To display the temperature of a device, enter the show chassis command at any level of the CLI.

PowerConnect# show chassis

The stack unit 1 chassis info:

Power supply 1 (NA - AC - Regular) present, status ok

Power supply 2 not present

Fan ok, speed (auto): [[1]]<->2<->3

Fan speed switching temperature thresholds:

1-> 2 @ 61 deg-C

1<- 2 @ 56 deg-C

2-> 3 @ 67 deg-C

2<- 3 @ 62 deg-C

MAC 1 Temperature Readings:

Current temperature : 50.5 deg-C

PowerConnect B-FCX Switch Hardware Installation Guide

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Contents PowerConnect B-FCX Switch Page Contents Managing the PowerConnect B-FCX Hardware Checking Network Devices and Testing ConnectivityChapter Troubleshooting PowerConnect B-FCX Switch Hardware Installation Guide Text formatting AudienceSupported hardware and software Document conventionsRelated publications Command syntax conventionsCommand Parameters Contacting Dell Getting technical help or reporting errorsPowerConnect B-FCX Switch Hardware Installation Guide Product Overview Hardware featuresPowerConnect B-FCX624s front panel Device Label on required power supply Control featuresHardware features Out-of-band RJ45 management interface Hardware features Out-of-band RJ45 management InterfacePowerConnect B-FCX 10/100/1000 BASE-T ports Serial management interface DB9 Console portDevice Slot Slot designationsInterface Show Media Description SFP interfacesOptional two-port 10 Gbps XFP uplink module Condition Status Optional Four-port 1 Gbps SFP and 10 Gbps SFP+ modulesOptional 10Gbps XFP module is not hot-swappable Four-port 1 Gbps SFP module status LEDsFour-port 10 Gbps SFP+ module status LEDs Cable specifications for CX4 stacking ports16/10 Gbps Ethernet CX4 stacking ports Port status LEDs Power status LEDs Hardware features System status LEDsState Switch StatusSFP+ Hardware features Port status LEDsSwitch Status Redundancy Power suppliesPower supply unit operation General requirements Package contentsUnpacking the device Task Where to Find More Information Number Installation tasksInstallation precautions Follow all precautions when installing a Dell deviceInstallation precautions General precautionsLifting precautions Power precautionsCabling infrastructure Preparing the installation siteInstallation location Preparing the installation siteDesktop installation Installing the deviceRack mount installation PowerConnect B-FCX624s and PowerConnect B-FCX648s devices Connecting devices in a stackPowerConnect B-FCX Switch Hardware Installation Guide PowerConnect B-FCX624 and PowerConnect B-FCX648 devices Powering on the system Attaching a PC or terminal As indicated in , some of the wires should not be connected Installing and replacing a power supply unitWiring map for serial cable Serial cable wiringInstalling and replacing a power supply unit PowerConnect B-FCX Switch Hardware Installation Guide Page PowerConnect B-FCX Switch Hardware Installation Guide Page PowerConnect B-FCX Switch Hardware Installation Guide Assigning permanent passwords Checking Network Devices and Testing ConnectivityEnter the following command to set the super user password Setting passwordsRecovering from a lost password Assigning permanent passwordsDevices running Layer 2 software Configuring IP addressesSyntax enable password Devices running Layer 3 software Assigning an IP address to an Ethernet port Configuring IP addressesSyntax router-interface ve num Syntax interface ve num Deleting an IP addressSyntax interface loopback num Assigning an IP address to a virtual routing interfaceConnecting to Ethernet or fast Ethernet hubs Connecting network devicesConnectors Cable specificationsFiber Optic transceivers Connecting to workstations, servers, or routersConnecting a network device to a fiber port Automatic MDI or Mdix detectionGigabit Optic Distance Supported for stacking Installing a transceiverAll fiber optic interfaces use Class 1 lasers Cabling a fiber optic transceiver Pinging an IP address Testing connectivityCleaning the fiber optic connectors Testing connectivityMeaning or Action Testing connectivity Network connection-related LED statesDesired Meaning Tracing a route Troubleshooting network connectionsViewing the results of the cable analysis Using Virtual Cable Testing to diagnose a cableConfiguration notes Command syntaxThis Line Displays Digital optical monitoringSyntax show cable-diag tdr port-num Defines the fields shown in this output Cable statisticsTroubleshooting network connections Displaying the temperature Managing temperature settingsUsing the temperature sensor Syntax temperature warning stack-unit value Displaying Syslog messages for temperatureChanging temperature warning and shutdown levels Managing temperature settingsSyntax fan-threshold speed-3 mp lowest value highest value Changing the shutdown temperatureCommand Syntax chassis poll-time stack-idvalue Displaying PowerConnect B-FCX CPU usageChanging the temperature polling interval Removing MAC address entriesRemoving a copper or fiber optic module Hardware maintenance scheduleHardware maintenance schedule Replacing a copper or fiber optic moduleReplacing a copper or fiber optic module Cleaning the fiber optic connectorsCabling a fiber optic module Replacing a copper or fiber optic module Operating Environment Hardware specificationsPhysical dimensions and weight Environmental considerationsStorage environment Hardware specificationsStorage Temperature Storage Humidity Storage Altitude Cooling system and fansAir Inflow Air outlet Mgmt Serial Console port pinouts Pinouts and signallingMicrons MHz*km or Cable Type Connector TypeRange meters Hardware specifications Cable length summary Power cordsAC power supply specifications Hardware specifications Troubleshooting chart Diagnosing switch indicatorsPower and cooling problems InstallationDiagnosing switch indicators In-band accessJapan Vcci USA FCC CFR 47 Part 15 WarningIndustry Canada statement Europe and Australia Cispr 22 Class a WarningClass a statement Japan power cordKorea RussiaCertifications Regulatory complianceRegulatory compliance Regulatory compliance Vorsicht Devices near the input power connectors Never leave tools inside the chassis Gefahr Device PowerConnect B-FCX Switch Hardware Installation Guide