Cabletron Systems 2200 4.3 USING THE RESET BUTTON

Using the RESET Button

Troubleshooting 4-7

4.3 USING THE RESET BUTTON

The RESET button shown in Figure 4-2 resets and re-initializes the 2E253-49R.

Figure 4-2 RESET Button

To reset the 2E253-49R processor, press and release the RESET button. The 2E253-49R goes

through a reset process for approximately 60 seconds. Additional downtime may result as the

device reenters the network.

CAUTION

Pressing the RESET button resets the device, and all current switching being performed

by the device is halted. A network downtime of up to two minutes will result from this

action.

NOTE

NOTE It is not recommended to press the RESET button while the device is already in reset

mode. If so, the device will enter an extended diagnostic procedure, which is

unnecessary tor normal operation. This extended diagnostic procedure takes much

longer than a minute.

2600-10

2E253-49R COM

RESET

2536

12 1

PWR

CPU

ETHERNET WORKGROUP SWITCH

RESET Button

Contents

Main 2E253-49R SmartSwitch 2200 Installation Users Guide ETHERNET WORKGROUP SWITCH 2E253-49R 37482536 Page i Only qualied personnel should perform installation procedures. NOTICE FCC NOTICE VCCI NOTICE INDUSTRY CANADA NOTICE iii CABLETRON SYSTEMS, INC. iv v CABLETRON SYSTEMS SALES AND SERVICE, INC. vi vii CABLETRON SYSTEMS LIMITED viii ix DECLARATION OF CONFORMITY Page xi Contents NETWORK REQUIREMENTS INTRODUCTION ABOUT THIS GUIDE 3 B A 4 Figures Page About This Guide Important Notice STRUCTURE OF THIS GUIDE USING THIS GUIDE RELATED DOCUMENTS Management Users Guide http://www.cabletron.com/ DOCUMENT CONVENTIONS Page Introduction 1-1 Introduction 48 Ports (10 Mbps) HSIM/VHSIM Slot 2E253-49R 2600-01 1.1.1 Connectivity 1.1.2 Full Duplex Switched Ethernet 1.1.3 Standard/Full Duplex Auto-Negotiation 1.1.4 Runtime IP Address Discovery 1.1.5 SmartTrunk 1.1.6 Remote Monitoring (RMON) 1.1.7 Broadcast Suppression 1.1.8 Port/VLAN Redirect Functions 1.1.9 Trafc Rate Limiting 1.1.10 Flow Control 1.1.11 GARP Switch Operation 1.1.12 802.1 Port Priority 1.1.13 Management 1.1.14 Switching Options Page 1.2 GETTING HELP Network Requirements 2.1 SmartTrunk 2.2 10BASE-T NETWORK Page Installation 3.1 UNPACKING THE DEVICE 3.2 INSTALLING OPTIONS 3.3 INSTALLING THE DEVICE 3.3.1 Tabletop or Shelf Installation 3-4 Installation 2600-02 Figure 3-1 Tabletop or Shelf Installation 3.3.2 Rackmount Installation A = 15 cm (6 in) B = 57 cm (22.5 in) C = 53 cm (21 in) C B A D D = 213 cm (7 ft) ETHERNET WORKGROUP SWITCH 132412 1 Strain-Relief Bracket Strain-Relief Bracket Screws COM 3-6 Installation 2504-04 Rackmount Bracket CPU PWR 132412 1 37482536 3.3.3 Connecting Power NOTE The two power supplies in the 2E253-49R have automatic voltage sensing that allows connection to power sources ranging from 100125 Vac, 2.5 A or 200240 Vac, 1.25 A, 50/60 Hz. NOTE If the power-up sequence is interrupted on this device, or if optional hardware has been Screws 19-Inch Rack 3.4 CONNECTING TO THE NETWORK Primary Redundant AC outlets are on separate circuits Connecting to the Network Installation 3-9 RJ21 Angle Adapter COM 2E253-49R 3.5 COMPLETING THE INSTALLATION Troubleshooting 4-1 Troubleshooting 2E253-49R CPU PWR 2600-09 Figure 4-1 LANVIEW LEDs Page Page Page 4.2 TROUBLESHOOTING CHECKLIST Page Using the RESET Button Troubleshooting 4-7 4.3 USING THE RESET BUTTON The RESET button shown in Figure 4-2 resets and re-initializes the 2E253-49R. RESET Button Page A Specications A.2 PHYSICAL PROPERTIES A.1 DEVICE SPECIFICATIONS Page A.6 COM PORT PINOUT ASSIGNMENTS A.7 REGULATORY COMPLIANCE Page B Optional Installations and Mode Switch Bank Settings B.1 REQUIRED TOOLS Removing the Chassis Cover B-2 Optional Installations and Mode Switch Bank Settings B.2 REMOVING THE CHASSIS COVER This section describes how to remove the 2E253-49R chassis cover. Page Page B.3 SETTING THE MODE SWITCHES B.4 SIMM UPGRADE SIMM Upgrade Optional Installations and Mode Switch Bank Settings B-7 B.4.1 Locating SIMMs Figure B-3 shows the location of the DRAM SIMM connector. B.4.2 Installing the DRAM SIMM Installing Optional HSIM or VHSIM Interface Modules Optional Installations and Mode Switch Bank Settings B-9 B.5 INSTALLING OPTIONAL HSIM OR VHSIM INTERFACE MODULES Connectors Optional HSIM or VHSIM Page Index Index Index-2 M N P R S