Enterasys Networks 2H252-25R manual Connecting Power

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Installing the Device

3.3.3Connecting Power

NOTE: The two power supplies in the 2H252-25R have automatic voltage sensing that allows connection to power sources ranging from 100–125 Vac, 2.5 A or 200–240 Vac, 1.25 A, 50/60 Hz.

To connect the 2H252-25R to the power sources, proceed as follows:

1.Plug each power cord into a grounded wall outlet, see Figure 3-5. To take advantage of the load sharing and redundancy capabilities, each power cord must be plugged into a separate dedicated ac outlet. The Power (PWR) LED turns ON (green) and the CPU LED alternates between green and amber during boot up. It takes approximately one minute for the 2H252-25R to boot up.

NOTE: If the power-up sequence is interrupted on this device, or if optional hardware has been installed or removed, this device may run an extended diagnostics sequence that may take up to five minutes to complete.

Figure 3-5 2H252-25R Rear View

Redundant

Primary

AC outlets are

 

on separate circuits

25041-06

2.Observe the LANVIEW LEDs. After a successful boot, the PWR LED turns ON (green). If the PWR LED is amber, there is no power redundancy. Check the power cord connections and the power source. If there are no problems with the power cord connections or power source and the PWR LED is still amber, contact Enterasys Networks for help. Refer to Section 1.2 for details.

3-8Installation

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Contents 2H252-25R SmartSwitch Installation User’s Guide Page Page Vcci Notice FCC NoticeIndustry Canada Notice Class a ITE NoticeEnterasys NETWORKS, INC Program License Agreement Page Declaration of Conformity Page Contents Troubleshooting Figures Tables About This Guide Using this GuideStructure of this Guide Related Documents Document Conventions Guide uses the following conventionsPage Introduction OverviewConnectivity Runtime IP Address DiscoveryFull Duplex Switched Ethernet SmartTrunkPort/VLAN Redirect Functions Remote Monitoring RmonBroadcast Suppression Rate LimitingGarp Switch Operation Flow ControlManagement Switching Options11 802.1 Port Priority Optional HSIMs and VHSIMsStandards Compatibility Lanview Diagnostic LEDsYear 2000 Compliant Getting Help Your email addressNetwork Requirements 10BASE-T Network100BASE-TX Network Installation Unpacking the DeviceInstalling Options Guidelines for Tabletop and Shelf Installations Installing the DeviceTabletop or Shelf Installation InstallationRackmount Installation Guidelines for the Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2H252-25R Strain-Relief Bracket ScrewsRackmount Bracket Screws Connecting Power Redundant Primary AC outlets are On separate circuitsConnecting to the Network Connecting Twisted Pair Cables to Fixed PortsConnecting the Twisted Pair Segment Straight-Through Cable Completing the Installation Troubleshooting Using LanviewLanview LEDs PWR CPU FDX Troubleshooting Checklist Local Management User’s Guide2E253, 2H252, 2H253 SmartSwitch Series 2E253 Using the Reset Button Reset ButtonPage Device Specifications SpecificationsPhysical Properties Environmental Requirements Electrical SpecificationsINPUT/OUTPUT Ports COM Port Pinout Assignments Regulatory CompliancePage Optional Installations Mode Switch Bank Settings Required ToolsRemoving the Chassis Cover Optional Installations and Mode Switch Bank Settings B-3 Screws Chassis Cover Front Panel Setting the Mode Switches Figure B-2 Mode Switch Location6Optional Installations and Mode Switch Bank Settings Simm Upgrade Locating SIMMsInstalling the Dram Simm Installing Optional Hsim or Vhsim Interface Modules Figure B-5 Hsim and Vhsim Connector LocationsPage Index NumericsIndex-2