Cabletron Systems 2E253-49R Page 47 Installation & User Manual Download | Manualshive

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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

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

25

36

12

1

PWR

CPU

ETHERNET WORKGROUP SWITCH

RESET Button

«
...
45
46
47
48
49
...
»

Summary of Contents for 2E253-49R

Page 1: ...Installation User s Guide 2E253 49R COM RESET 37 48 25 36 13 24 12 1 PWR CPU 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 1 2 3 4 5 9 6 7 8 10 11 12 ETHERNET WORKGROUP SWITCH ...

Page 2: ......

Page 3: ...ED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Cabletron Systems Inc 35 Industrial Way Rochester NH 03867 2000 by Cabletron Systems Inc All Rights Reserved Printed in the United States of America Order Number 9033216 January 2000 Cabletron Systems...

Page 4: ...ase the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment INDUSTRY CANADA NOTICE This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in...

Page 5: ... of the Program provided in this package subject to the terms and conditions of this License Agreement You may not copy reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron 2 OTHER RESTRICTIONS You may not reverse engineer decompile or disassemble the Program 3 APPLICABLE LAW This License Agreement shal...

Page 6: ...e submitted with restricted rights in accordance with section 52 227 19 a through d of the Commercial Computer Software Restricted Rights Clause and its successors and iii in all respects is proprietary data belonging to Cabletron and or its suppliers For Department of Defense units the Product is considered commercial computer software in accordance with DFARS section 227 7202 3 and its successor...

Page 7: ...t to regulation by agencies of the U S Government including the U S Department of Commerce which prohibit export or diversion of certain technical products to certain countries unless a license to export the product is obtained from the U S Government or an exception from obtaining such license may be relied upon by the exporting party If the Program is exported from the United States pursuant to ...

Page 8: ...ocumentation and media CABLETRON DISCLAIMS ALL WARRANTIES OTHER THAN THOSE SUPPLIED TO YOU BY CABLETRON IN WRITING EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE PROGRAM THE ACCOMPANYING WRITTEN MATERIALS AND ANY ACCOMPANYING HARDWARE 7 NO LIABILITY FOR CONSEQUENTIAL DAMAGES IN NO EVENT SHALL CAB...

Page 9: ...he right to use only the one 1 copy of the Program provided in this package subject to the terms and conditions of this License Agreement You may not copy reproduce or transmit any part of the Program except as permitted by the Copyright Act of the United States or as authorized in writing by Cabletron 2 OTHER RESTRICTIONS You may not reverse engineer decompile or disassemble the Program 3 APPLICA...

Page 10: ...re submitted with restricted rights in accordance with section 52 227 19 a through d of the Commercial Computer Software Restricted Rights Clause and its successors and iii in all respects is proprietary data belonging to Cabletron and or its suppliers For Department of Defense units the Product is considered commercial computer software in accordance with DFARS section 227 7202 3 and its successo...

Page 11: ...EN 60950 Equipment Type Environment Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment packaged with this notice conforms to the above directives Manufacturer Legal Representative in Europe Mr Ronald Fotino Mr J Solari ___________________________________ ___________________________________ ...

Page 12: ...x ...

Page 13: ... 1 3 1 1 5 SmartTrunk 1 3 1 1 6 Remote Monitoring RMON 1 4 1 1 7 Broadcast Suppression 1 4 1 1 8 Port VLAN Redirect Functions 1 4 1 1 9 Traffic Rate Limiting 1 5 1 1 10 Flow Control 1 5 1 1 11 GARP Switch Operation 1 6 1 1 12 802 1 Port Priority 1 6 1 1 13 Management 1 6 1 1 14 Switching Options 1 6 1 1 15 Optional HSIMs and VHSIMs 1 7 1 1 16 Standards Compatibility 1 7 1 1 17 Year 2000 Compliance...

Page 14: ...4 3 Using the RESET Button 4 7 A SPECIFICATIONS A 1 Device Specifications A 1 A 2 Physical Properties A 1 A 3 Electrical Specifications A 2 A 4 Environmental Requirements A 2 A 5 Input Output Ports A 2 A 6 COM Port Pinout Assignments A 3 A 7 Regulatory Compliance A 3 B OPTIONAL INSTALLATIONS AND MODE SWITCH BANK SETTINGS B 1 Required Tools B 1 B 2 Removing the Chassis Cover B 2 B 3 Setting the Mod...

Page 15: ...t Brackets 3 6 3 4 Installing the Device in a Rack 3 7 3 5 2E253 49R Rear View 3 8 3 6 Straight Cable Connection 3 9 3 7 Connection Using the RJ21 Angle Adapter 3 9 4 1 LANVIEW LEDs 4 1 4 2 RESET Button 4 7 B 1 Removing the Chassis Cover B 4 B 2 Mode Switch Location B 5 B 3 DRAM SIMM connector Location B 7 B 4 Installing the DRAM B 8 B 5 HSIM and VHSIM Connector Locations B 9 ...

Page 16: ...xiv Tables Table Page 3 1 Contents of 2E253 49R Carton 3 2 4 1 LANVIEW LEDs 4 2 4 2 Troubleshooting Checklist 4 5 A 1 COM Port Pin Assignments A 3 ...

Page 17: ...stand the 2E253 49R capabilities and how to install it A general working knowledge of Ethernet and IEEE 802 3 type data communications networks and their physical layer components is helpful when using this device STRUCTURE OF THIS GUIDE This guide is organized as follows Chapter 1 Introduction provides an overview of the 2E253 49R and its features Directions for obtaining additional information o...

Page 18: ...the device set the Mode Switch and shows the location of an optional High Speed Interface Module HSIM or Very High Speed Interface Module VHSIM RELATED DOCUMENTS The following Cabletron Systems documents may help to set up and manage the 2E253 49R SmartSwitch Series 2E253 2H252 2H253 and 2H258 Local Management User s Guide Ethernet Technology Guide Cabling Guide SmartTrunk User s Guide WAN Series ...

Page 19: ...ns NOTE All documentation for the Cabletron Systems SecureFast VLAN Manager software is contained on the VLAN Manager CD ROM NOTE Note symbol Calls the reader s attention to any item of information that may be of special importance TIP Tip symbol Conveys helpful hints concerning procedures or actions CAUTION Caution symbol Contains information essential to avoid damage to the equipment Electrical ...

Page 20: ......

Page 21: ...e in either standard or full duplex mode of operation Full duplex mode is the default mode as determined by auto negotiation Full duplex can also be manually configured Figure 1 1 2E253 49R SmartSwitch 2200 Device Important Notice Depending on the firmware version used in the 2E253 49R some features described in this document may not be supported Refer to the Release Notes shipped with the 2E253 4...

Page 22: ...a tabletop unit or can be installed in a standard 19 inch rack using the supplied rack mounting hardware The 2E253 49R has two universal ac power supplies with automatic voltage sensing that allows operation using 100 125 or 200 240 Vac 50 60 Hz The power supplies load share 50 5 of the power required by the device If one power supply fails the remaining power supply assumes the entire load of the...

Page 23: ...ing a user to enter an IP address through Local Management When the device is connected to the network and powered up Runtime IP Address Discovery RAD checks the device for an IP address If one has not yet been assigned device IP address set to 0 0 0 0 RAD checks to see if any of the device interfaces have a link If so RAD sends out Reverse Address Resolution Protocol RARP and BootP requests to ob...

Page 24: ...a broadcast threshold is crossed 1 1 7 Broadcast Suppression Broadcast Suppression enables a user to set a desired limit of receive broadcast frames per port per second to be forwarded out the other ports on the device Any broadcast frames above this specified limit are dropped In the event that broadcast frames are being suppressed multicast and unicast frames continue to be switched 1 1 8 Port V...

Page 25: ...he rate limiting operation occurs after the processing of the multi layer classification rules the two features can be combined to provide application aware rate limiting For more information about the application of rate limiting refer to SmartSwitch Series 2E253 2H252 2H253 and 2H258 Local Management User s Guide 1 1 10 Flow Control Flow control is a method of managing the flow of frames between...

Page 26: ...rioritize frames according to protocol type The 802 1 port priority is part of the IEEE 802 1D standard 1 1 13 Management Management of the 2E253 49R is accomplished using SNMP compliant management tools for in band Local Management Out of band Local Management is provided through the RJ45 COM port on the front panel using a VT100 terminal or a VT100 terminal emulator In band remote management is ...

Page 27: ... protect against loop conditions The 2E253 49R supports a wide variety of industry standard MIBs including RFC 1213 MIB II RFC 1757 RMON RFC 1493 Bridge MIB RFC 1354 FIB MIB and RFC 1190 Path MTU Discovery A full suite of Cabletron Systems Enterprise MIBs provide a wide array of statistical information to enhance troubleshooting For information on how to extract and compile individual MIBs contact...

Page 28: ...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 World Wide Web http www cabletron com Phone 603 332 9400 Internet mail support cabletron com FTP ftp ftp c...

Page 29: ...ntage of the SmartTrunk feature there are certain rules concerning port connections and configurations that must be followed for proper operation Refer to the Cabletron Systems SmartTrunk User s Guide for additional information 2 2 10BASE T NETWORK When connecting a 10BASE T segment to any of the 2E253 49R ports 1 through 48 ensure that the network meets the Ethernet network requirements of the IE...

Page 30: ......

Page 31: ...w to correctly install the device Unpacking the Device Section 3 1 Installing Options Section 3 2 Installing the Device on a shelf or tabletop or into a standard rack Section 3 3 Connecting to the Network Section 3 4 Completing the Installation Section 3 5 Only qualified personnel should install the 2E253 49R NOTE Read the Release Notes shipped with the device to check for any exceptions to the su...

Page 32: ...tact Cabletron Systems if there are any signs of damage Refer to Section 1 2 for details 3 2 INSTALLING OPTIONS If the 2E253 49R is to be installed with an optional HSIM or VHSIM refer to the user s guide of that device for the installation instructions To install an optional SIMM refer to Appendix B Table 3 1 Contents of 2E253 49R Carton Item Quantity 2E253 49R 1 Antistatic Wrist Strap 1 Console ...

Page 33: ...elf 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 install...

Page 34: ... the location Maintain a temperature of between 5 C 41 F and 40 C 104 F at the installation site with fluctuations of less than 10 C 18 F per hour CAUTION 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 WARNING Before installing the 2E253 49R into a rack ensure that the rack supports the device s with...

Page 35: ...wn as shown in Figure 3 2 on a clean flat surface Then attach the strain relief bracket to the bottom of the 2E253 49R using the four 8 32 x 5 16 inch pan head screws Figure 3 2 Attaching the Strain Relief Bracket CAUTION Do not attempt to attach the strain relief bracket with screws other than the 8 32 x 5 16 inch screws included with the 2E253 49R Use of longer screws may damage the unit Strain ...

Page 36: ... the four 6 32 x 1 4 inch flathead screws in the rackmount kit Use these screws to attach the rackmount brackets to the bottom of the 2E253 49R as shown in Figure 3 3 Figure 3 3 Attaching the Rackmount Brackets 3 With the mounting brackets attached position the 2E253 49R between the vertical frame members of the 19 inch rack and fasten it securely with mounting screws as shown in Figure 3 4 TELCO ...

Page 37: ...proximately one minute for the 2E253 49R to boot up NOTE The two power supplies in the 2E253 49R have automatic voltage sensing that allows connection to power sources ranging from 100 125 Vac 2 5 A or 200 240 Vac 1 25 A 50 60 Hz NOTE If the power up sequence is interrupted on this device or if optional hardware has been installed or removed this device may run an extended diagnostics sequence tha...

Page 38: ...lded twisted pair UTP segments from the network or other devices to the 2E253 49R When facing the front panel of a 2E253 49R the bottom left RJ21 is the connector for 10BASE T ports 1 through 12 bottom right ports 13 through 24 top left ports 25 through 36 and top right ports 37 through 48 All 48 ports have internal crossovers NOTE If the 2E253 49R is being installed in a network using SmartTrunki...

Page 39: ...J21 right angled adapter enables the cables to be dressed along the front of the device and easily attached to the strain relief bracket when using an RJ21 right angled connector Figure 3 6 Straight Cable Connection Figure 3 7 Connection Using the RJ21 Angle Adapter 2600 07 RJ21 Screw Screw Port 1 RX LED TX 1 ETHERNET WORKGROUP SWITCH 2E253 49R COM RESET 37 48 25 36 13 24 12 1 PWR CPU 1 2 3 4 5 9 ...

Page 40: ...roblem is resolved when the Link LED comes on a Verify that the device at the other end of the twisted pair segment is on and connected to the segment b Verify that the RJ21 connector associated with the twisted pair segment has the proper pinouts and check the cable for continuity c Check that the twisted pair connection meets the dB loss and cable specifications outlined in Chapter 2 If a link i...

Page 41: ...segments may be viewed at a time To view the receive and transmit activity on a group of segments press the GROUP SELECT button see Figure 4 1 to step to the group of interest Group 1 through 4 Each time the GROUP SELECT button is pressed the next GROUP LED 1 2 3 or 4 lights indicating which Group is selected The receive and transmit activity for that group of segments is then indicated by the RX ...

Page 42: ...dy rate approximately 50 on 50 off Solid indicates a steady LED light No pulsing Table 4 1 LANVIEW LEDs LED Color State Recommended Action PWR Off Device electronics not receiving power from power supply ies 1 Ensure that the power cords are plugged in correctly and that there is power at the power source 2 Contact Cabletron Systems for technical support Green Functional Power supply ies operating...

Page 43: ...pport Solid Testing If the LED remains amber for several minutes contact Cabletron Systems for technical support Green Solid Functional None Amber and Green Booting Blinks amber and green while booting None RX Receive Off No link No activity or port in standby Port enabled or disabled None Green Solid Link port enabled no activity None Blinking Link port disabled None Amber Flashing Link port enab...

Page 44: ...ng Indicates activity Rate indicates data rate None Amber Blinking Port in standby Port may be disabled due to Spanning Tree 1 Ensure that the port is not disabled 2 Contact Cabletron Systems for technical support Red Flashing Indicates collision rate None unless there is a high amount of activity In this case check for network configuration problems or a defective device Solid Diagnostic failure ...

Page 45: ...has not yet been detected Press ENTER RETURN may take up to four times Terminal setup is not correct Refer to SmartSwitch Series 2E253 2H252 2H253 and 2H258 Local Management User s Guide for proper setup procedures Improper console cable pinouts Refer to Appendix A for proper console port pinouts Corrupt firmware image or hardware fault If possible attempt to download the image to the 2E253 49R ag...

Page 46: ...252 2H253 and 2H258 Local Management User s Guide for the instructions to set the type of STA 2 Review the network design and delete unnecessary loops 3 If the problem continues contact Cabletron Systems for technical support User parameters IP address Device and Module name etc were lost when the 2E253 49R power was cycled or the front panel RESET button was pressed 1 Position of Mode switch 7 NV...

Page 47: ... 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 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 norm...

Page 48: ......

Page 49: ...hange these specifications at any time without notice A 1 DEVICE SPECIFICATIONS A 2 PHYSICAL PROPERTIES Processors Intel i960 RISC processor Power PC Dynamic Random Access Memory DRAM 20 MB expandable to 32 MB FLASH Memory 8 MB Shared Memory 4 MB Dimensions 7 11H x 43 18W x 46 99D cm 2 8H x 17W x 18 5D in Approximate Weight Unit 8 18 kg 18 lb MTBF 45 374 hours ...

Page 50: ...Amperes VA 250 VA 250 VA Operating Temperature 5 C to 40 C 41 F to 104 F Storage Temperature 30 C to 73 C 22 F to 164 F Operating Relative Humidity 5 to 90 non condensing Ports 1 through 48 four RJ 21 connectors Ethernet 10BASE T compliant with RJ21 type connectors Each connector provides connection for 12 ports Interface Slot Slot accepts optional High Speed Interface Module HSIM or Very High Spe...

Page 51: ...ic compatibility EMC requirements Table A 1 COM Port Pin Assignments Pin Signal Name Input Output 1 Transmit Data XMT Output 2 Data Carrier Detect DCD Output 3 Data Set Ready DSR Input 4 Receive Data RCV Input 5 Signal Ground GND NA 6 Data Terminal Ready DTR Output 7 Request to Send RTS Input 8 Clear to Send CTS NA Safety UL 1950 CSA C22 2 No 950 73 23 EEC EN 60950 IEC 950 Electromagnetic Compatib...

Page 52: ......

Page 53: ...tems Required tools Section B 1 Removing the chassis cover Section B 2 Locations functions and settings for the mode switches Section B 3 Installing optional SIMM upgrades Section B 4 Location of Optional HSIMs and VHSIMs Section B 5 B 1 REQUIRED TOOLS Use the following tools to perform the procedures provided in this appendix Antistatic wrist strap Phillips screwdriver ONLY QUALIFIED SERVICE PERS...

Page 54: ...9R NICHEINSCHALTEN SO LANG DER DECKEL UND SCHRAUBEN NICHT EINGEBAUT SIND NO DEBE DE REMOVER LA TAPA DURENTE QUE ESTE CONELTADO A LA CORRIENTE UNA DESCARGA ELECTRICA LE PUEDE CAUSAR Y PROBOCARLE DAÑOS AL IGUAL QUE AL APARATO NO ENCHUFE A LA CORRIENTE HASTA QUE LA TAPA Y LOS TORNILLOS ESTEN EN SU LUGAR CAUTION THIS UNIT MAY HAVE MORE THAN ONE POWER SUPPLY CORD DISCONNECT TWO POWER SUPPLY CORDS BEFOR...

Page 55: ... to remove the four screws attaching the cover to the chassis See Figure B 1 4 Remove the cover by sliding it back 1 until it clears the front of the chassis and then lifting it straight up 2 and off the chassis To reinstall the chassis cover perform the removal procedures in reverse TURN OFF THE 2E253 49R BY UNPLUGGING THE POWER CORD FROM THE REAR OF THE CHASSIS AM HINTEN DES 2E253 49R STECHEI AB...

Page 56: ...e Switch Bank Settings Figure B 1 Removing the Chassis Cover 2504 30 Note If the device was rack mounted the four screws fastening the cover to the front panel are removed and installed along with the rackmount brackets Chassis Front Panel Screws 4 Chassis Cover ...

Page 57: ...Port Autobaud The default OFF position enables Autobaud sensing on the COM port for Local Management sessions Changing the switch to the ON position disables Autobaud sensing and sets the COM port to 9600 baud for Local Management sessions Figure B 2 Mode Switch Location Switch 6 Forced BootP NOTE After changing the position of switch 6 DO NOT reapply power to the chassis until there is a station ...

Page 58: ...n of this switch resets NVRAM on the next power up of the device All user entered parameters such as the IP address device names etc are reset to the factory default settings Once the 2E253 49R resets you can either use the factory default settings or reenter your own parameters Switch 8 Reset Password Community Names Changing the position of this switch clears user entered passwords stored in NVR...

Page 59: ... Mode Switch Bank Settings B 7 B 4 1 Locating SIMMs Figure B 3 shows the location of the DRAM SIMM connector Figure B 3 DRAM SIMM connector Location 26001 84 DRAM FRONT PANEL TOP VIEW WITHOUT COVER Primary Power Supply Redundant Power Supply ...

Page 60: ...n in Figure B 4 insert the SIMM down between the connector teeth 2 Pivot the SIMM downward so the connector clips align with the two side notches of the SIMM and the connector clips lock the SIMM into place Figure B 4 Installing the DRAM CAUTION Observe all antistatic precautions when handling sensitive electronic equipment 1 2 SIMM Alignment Notch Clip Clip Connector Teeth Side Notch Side Notch C...

Page 61: ...n of the two connectors for an optional HSIM or VHSIM Depending on the HSIM or VHSIM installed one or both connectors are used Figure B 5 HSIM and VHSIM Connector Locations NOTE Do not install the optional HSIM or VHSIM without referring to the associated installation guide 2600 31 FRONT PANEL TOP VIEW WITHOUT COVER Primary Power Supply Redundant Power Supply Optional HSIM or VHSIM Connectors ...

Page 62: ......

Page 63: ...r removal of B 2 COM port pin assignments A 3 Connecting to the network 3 8 Connectivity introduction to 1 2 D Document conventions xvii E Environmental requirements A 2 F Flow control introduction to 1 5 G Getting help 1 8 GROUP SELECT button use of the 4 1 H HSIM installation of B 9 I Installation HSIM location of B 9 in a rack 3 4 on a tabletop or shelf 3 3 VHSIM location of B 9 L LANVIEW LEDs ...

Page 64: ...Compliance A 3 Related manuals xvi Remote Monitoring RMON introduction to 1 4 RESET button 4 7 Runtime IP address discovery 1 3 S SIMMs installing DRAM B 8 location B 7 SmartTrunk introduction to 1 3 Specifications A 1 Standards compatibility 1 7 Switching options introduction to 1 6 T Transmit LEDs viewing of 4 1 Troubleshooting 4 1 checklist 4 5 U Unpacking 3 2 V VHSIM installation of B 9 Viewin...

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