Cabletron Systems 2H253-25R manual Introduction, Overview

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Introduction

This chapter introduces the 2H253-25R SmartSwitch 2200 device and provides information about how to obtain additional support from Cabletron Systems.

Important Notice

Depending on the firmware version used in the 2H253-25R, some features described in this document may not be supported. Refer to the Release Notes shipped with the 2H253-25R to determine which features are supported.

1.1OVERVIEW

The 2H253-25R (Figure 1-1) is an Ethernet/Fast Ethernet standalone device with two RJ21 front panel connectors (each containing 12 switched ports), and 1 slot for an optional High Speed Interface Module (HSIM) or Very High Speed Interface Module (VHSIM).

LED MODE Switch

Port Status

HSIM/VHSIM Slot

LEDs

 

 

 

FAST ETHERNET WORKGROUP SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

LED

2

4

6

8

10

12

14

16

18

20

22

24

 

MODE

1

3

5

7

9

11

13

15

17

19

21

23

 

RX-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPX-SPD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR

 

 

 

 

 

 

 

 

 

 

 

2H253-25R

RESET

CPU

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

COM

System

Network Ports 1-24

 

Button

Port

 

LEDs

(Two RJ21 connectors)

27621-01

 

 

Figure 1-1 The 2H253-25R SmartSwitch 2200

Introduction 1-1

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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 Using this Guide About This GuideStructure of this Guide Xvi Related DocumentsDocument Conventions Document ConventionsPage Overview IntroductionAuto-Negotiation ConnectivityFull Duplex Switched Ethernet Runtime IP Address DiscoverySmartTrunk Remote Monitoring Rmon Broadcast SuppressionPort/VLAN Redirect Functions Flow Control Rate LimitingSwitching Options Garp Switch Operation12 802.1 Port Priority ManagementOptional HSIMs and VHSIMs Lanview Diagnostic LEDsStandards Compatibility Year 2000 CompliantGetting Help 10BASE-T Network Network Requirements100BASE-TX Network Unpacking the Device InstallationInstalling the Device Installing OptionsGuidelines for Tabletop and Shelf Installations Tabletop or Shelf InstallationGuidelines for the Rackmount Installation Rackmount InstallationAttaching the Strain-Relief Bracket Rack Mounting the 2H253-25R Redundant Primary AC outlets are On separate circuits Connecting PowerConnecting to the Network Straight Cable Connection Completing the Installation Using Lanview TroubleshootingPWR CPU FDX OFF Troubleshooting ChecklistSeries 2E253, 2H252, 2H253, User parameters Position of Mode switch IP address Reset Button Using the Reset ButtonDevice 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 Removing the Chassis Cover Figure B-1 Removing the Chassis Cover Switch 6 Forced BootP Setting the Mode SwitchesSimm Upgrade Locating SIMMs Installing the Dram SimmFigure B-4 Installing the Dram Figure B-5 Hsim and Vhsim Connector Locations Installing Optional Hsim or Vhsim Interface ModulesPage Numerics IndexIndex-2
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