Cabletron Systems 2H253-25R manual Getting Help

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Getting Help

1.2GETTING HELP

For additional support related to this device or document, contact Cabletron Systems using one of the following methods:

World Wide Web

http://www.cabletron.com/

Phone

(603) 332-9400

 

 

Internet mail

support@cabletron.com

 

 

FTP

ftp://ftp.cabletron.com/

Login

anonymous

Password

your email address

To send comments or suggestions concerning this document, contact the Cabletron Systems Technical Writing Department via the following email address: TechWriting@cabletron.com Make sure to include the document Part Number in the email message.

Before calling Cabletron Systems, have the following information ready:

Your Cabletron Systems service contract number

A description of the failure

A description of any action(s) already taken to resolve the problem (e.g., changing mode switches, rebooting the unit, etc.)

The serial and revision numbers of all involved Cabletron Systems products in the network

A description of your network environment (layout, cable type, etc.)

Network load and frame size at the time of trouble (if known)

The device history (i.e., have you returned the device before, is this a recurring problem, etc.)

Any previous Return Material Authorization (RMA) numbers

1-8Introduction

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Contents 2H253-25R 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 About This Guide Using this GuideStructure of this Guide Related Documents XviDocument Conventions Document ConventionsPage Introduction OverviewConnectivity Auto-NegotiationRuntime IP Address Discovery Full Duplex Switched EthernetSmartTrunk Broadcast Suppression Remote Monitoring RmonPort/VLAN Redirect Functions Rate Limiting Flow ControlGarp Switch Operation Switching Options12 802.1 Port Priority ManagementLanview Diagnostic LEDs Optional HSIMs and VHSIMsStandards Compatibility Year 2000 CompliantGetting Help Network Requirements 10BASE-T Network100BASE-TX Network Installation Unpacking the DeviceInstalling Options Installing the DeviceTabletop or Shelf Installation Guidelines for Tabletop and Shelf InstallationsRackmount Installation Guidelines for the Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2H253-25R Connecting Power Redundant Primary AC outlets are On separate circuitsConnecting to the Network Straight Cable Connection Completing the Installation Troubleshooting Using LanviewPWR CPU FDX Troubleshooting Checklist OFFSeries 2E253, 2H252, 2H253, User parameters Position of Mode switch IP address Using the Reset Button Reset ButtonSpecifications Device 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 Removing the Chassis Cover Figure B-1 Removing the Chassis Cover Setting the Mode Switches Switch 6 Forced BootPSimm Upgrade Installing the Dram Simm Locating SIMMsFigure B-4 Installing the Dram Installing Optional Hsim or Vhsim Interface Modules Figure B-5 Hsim and Vhsim Connector LocationsPage Index NumericsIndex-2