D-Link DES-1252 user manual Understanding LED Indicators, Power and System LEDs, Power LEDs

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connector, and the male into a power outlet. Supported input voltages range from 100-240V AC, and 50-60Hz.

Understanding LED Indicators

The front panel LEDs provides instant status feedback and simplifies monitoring and troubleshooting tasks.

Figure 6 – LED indicators of the Switch

Power and System LEDs

Power LEDs

On

Off

When the Power LED light is on, the Switch is receiving power.

When the Power LED light is off, the power cord is not improperly connected.

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Contents DES-1252 Table of Contents Page Iii Page Purpose Terms/UsageGigabit Ethernet Technology IntroductionSwitching Technology Fast Ethernet TechnologyFeatures IEEE802.1X Port-based Access ControlTechnical Specifications Key Components / Performance Switching CapacityForwarding Mode Max. Forwarding RateSdram for CPU Flash MemoryPort Functions Combo portsChassis Dimensions Reset button onTemperature 1000Mbps CopperStorage Temperature Power consumptionEmission EMI and Safety Certifications HumidityInstallation UnpackingRack Mounting Attach the adhesive rubber pads to the bottomConnecting Network Cable Attach the mounting brackets to the SwitchAC Power Reset button LED IndicatorFront Panel 10/100 BASE-TX Twisted Pair Ports Port 1~4810/100/1000 BASE-T Twisted Pair Ports Port 51~52 AC Power ConnectorRear Panel Power LEDs Understanding LED IndicatorsPower and System LEDs Ports 1 ~ 48 Status LEDs Link/Act 10/100Mbps shown in Amber Light Link/Act for UTP portsPorts 51~52 10/100/1000 Base-T LEDs Link/Act Page Installing the SmartConsole Utility Supported web browsersSmartConsole Utility Features Menu ToolbarOption includes Refresh Time and Group Interval functions Definitions of the Discovery List features Discovery ListMonitor List Definitions of the Monitor List functions and termsView trap Device Setting This space has been intentionally reserved for notesFirmware Upgrade Login Web-based ManagementLog in screen Tool Menu Tool MenuSetup Menu Tool Menu Firmware Backup and UploadSystem System Setting C PSystem Trap Setting System System SettingSystem Port Setting System Trap SettingSystem Port Setting System Snmp Setting System Snmp Setting System Password Access Control Configuration 802.1Q VlanConfiguration 802.1Q Vlan Default Setting Configuration 802.1Q Vlan Add VID Configuration Trunking Configuration 802.1Q Vlan VID AssignmentsConfiguration Igmp Snooping Configuration Igmp Snooping ConfigurationPage Page Configuration 802.1D Spanning Tree Configuration Igmp Router port SettingsConfiguration Spanning Tree Page Configuration Port Mirroring Configuration Port MirroringQoS 802.1p Default Priority Security Safeguard EngineSecurity 802.1X Setting Security Broadcast Storm ControlSecurity 802.1X Setting Page Security Mac Address Table Static Mac Security Static Mac AddressSecurity Mac Address Table Dynamic Forwarding Table Monitoring StatisticsMonitoring Statistics Monitoring Port Statistics