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Introduction, 1 overview, Overview -1 – Cabletron Systems 2H253-25R User Manual

Page 21: The 2h253-25r smartswitch 2200 -1, Chapter 1, Oduction, Important notice, Introduction 1-1

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Introduction

1-1

1

Introduction

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

1.1

OVERVIEW

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).

Figure 1-1

The 2H253-25R SmartSwitch 2200

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.

27621-01

2H253-25R

COM

PWR

CPU

RESET

LED
MODE

RX-TX

DPX-SPD

1

2

3

4

5

6

7

8

9

10

11

12

13

14
13

15

16

17

18

19

20

21

22

23

24

Network Ports 1-24
(Two RJ21 connectors)

System
LEDs

LED MODE Switch

COM
Port

Port Status
LEDs

HSIM/VHSIM Slot

Reset
Button

FAST ETHERNET WORKGROUP SWITCH