Cabletron Systems 2200 manual Installing the Device, Tabletop or Shelf Installation

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Installing the Device

3.3INSTALLING THE DEVICE

The 2E253-49R may be installed on a tabletop, shelf, or in a 19-inch rack. Section 3.3.1 describes a tabletop or shelf installation and Section 3.3.2 describes the rackmount installation.

To prevent possible personal injury and/or damage to the unit, do NOT connect power to the 2E253-49R until instructed to do so.

3.3.1Tabletop or Shelf Installation

The following two subsections provide guidelines for installation on a tabletop or shelf.

Guidelines for Tabletop and Shelf Installations

Tabletop and shelf installations must be within reach of the network cabling and meet the requirements listed below:

•The 2E253-49R must be located within seven feet of two grounded power receptacles that meet the power supply requirements listed in Appendix A.

•In a shelf installation, the shelf must support 13.5 kg (30 lb) of static weight for each 2E253-49R.

•The temperature at the installation site must be maintained between 5°C (41°F) and 40°C (104°F) with fluctuations of less than 10°C (18°F) per hour.

•A clearance of 2 inches must be maintained from the left, right, and rear sides of the device to provide adequate ventilation.

Installation

For a tabletop or shelf installation, locate the 2E253-49R within seven feet of its power source and on an unrestricted free surface area as shown in Figure 3-1. Proceed to Section 3.3.3 for power connection instructions.

To ensure proper ventilation and prevent overheating, leave a minimum clearance space

!of 5.1 cm (2.0 in) at the left, right, and rear of the 2E253-49R, as shown in Figure 3-1.

CAUTION

Installation 3-3

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Contents 2E253-49R SmartSwitch Installation User’s Guide Page Page FCC Notice Cabletron SYSTEMS, INC Program License Agreement Page Page Page Cabletron Systems Limited Program License Agreement Viii Declaration of Conformity Page Contents Troubleshooting Figures Tables Using this Guide About This GuideStructure of this Guide Xvi Related DocumentsDocument Conventions Document ConventionsPage Overview IntroductionConnectivity Full Duplex Switched EthernetStandard/Full Duplex Auto-Negotiation Runtime IP Address DiscoverySmartTrunk Remote Monitoring Rmon Broadcast SuppressionPort/VLAN Redirect Functions Flow Control Traffic Rate LimitingSwitching Options Garp Switch Operation12 802.1 Port Priority ManagementOptional HSIMs and VHSIMs Lanview Diagnostic LEDsStandards Compatibility Year 2000 ComplianceFTP Getting Help10BASE-T Network Network RequirementsPage Installation Unpacking the Device Installing OptionsTabletop or Shelf Installation Installing the DeviceGuidelines for the Rackmount Installation Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2E253-49R Installing the Device in a Rack Connecting PowerRedundant Primary AC outlets are On separate circuits Connecting to the NetworkConnection Using the RJ21 Angle Adapter Completing the Installation Using Lanview TroubleshootingPWR No link Is enabled and there is a OFF Troubleshooting Checklist2E253, 2H252, 2H253, and 2H258 Local Reset Button Using the Reset ButtonPage Device Specifications SpecificationsPhysical Properties Electrical Specifications Environmental RequirementsINPUT/OUTPUT Ports Regulatory Compliance COM Port Pinout AssignmentsPage Required Tools Optional Installations Mode Switch Bank SettingsRemoving the Chassis Cover To remove the chassis cover, proceed as follows Screws Chassis Cover Front Panel Switch 6 Forced BootP Setting the Mode SwitchesSimm Upgrade Locating SIMMs Figure B-3shows the location of the Dram Simm connectorSimm Installing the Dram SimmFigure B-5 Hsim and Vhsim Connector Locations Installing Optional Hsim or Vhsim Interface ModulesPage Numerics IndexIndex-2
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