Cabletron Systems SEHI-22FL manuel d'utilisation

SEHI-22FL INTELLIGENT ST A CKABLE HUB USER’ S GUIDE SEHI Book Page 1 Friday, April 19, 1996 10:46 AM[...]

SEHI User’ s Guide i NOTICE Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes ha ve been made. The hardware, firmware, or software described in this manual is [...]

Notice ii SEHI User’ s Guide FCC NOTICE This device complies with P art 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this de vice must accept any interference receiv ed, including interference that may cause undesired operation. NOTE: This equipment has been[...]

Notice SEHI User’ s Guide iii CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement. This document is an agreement between you, the end user , and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software [...]

Notice iv SEHI User’ s Guide UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was de veloped solely at pri vate expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its succ[...]

SEHI User’ s Guide v CONTENTS CHAPTER 1 INTRODUCTION 1.1 Using This Manual ....................................................................... 1-1 1.2 Document Conventions ............................................................... 1-2 1.3 Getting Help................................................................................. 1-3 1.[...]

Contents vi SEHI User’ s Guide CHAPTER 4 INSTALLATION 4.1 Unpacking the SEHI ..................................................................... 4-1 4.2 Pre-installation Test ..................................................................... 4-2 4.3 Installing the SEHI ....................................................................... 4[...]

Contents SEHI User’ s Guide vii APPENDIX A EPIM INFORMATION A.1 EPIM Specifications..................................................................... A-1 A.1.1 EPIM-T ............................................................................ A-1 A.1.2 EPIM-F1 and EPIM-F2 .................................................... A-2 A.1.3 EPIM-F3 [...]

SEHI User’ s Guide 1-1 CHAPTER 1 INTR ODUCTION W elcome to the Cabletron Systems SEHI-22FL Intelligent Stackable Hub User’s Guide . This manual pro vides installation instructions and reference information for the SEHI-22FL. 1.1 USING THIS MAN UAL Read through this manual to gain an understanding of the features and capabilities of the SEHI. A [...]

Chapter 1: Introduction 1-2 SEHI User’ s Guide Chapter 7, Local Management , describes ho w to use SEHI Local Management screens and the av ailable commands. Appendix A, EPIM Information , provides specifications, cabling information, and switch settings for the Ethernet Port Interface Modules. Appendix B, Image File Download Using OIDs , provid[...]

Getting Help SEHI User’ s Guide 1-3 1.3 GETTING HELP If you need additional support related to this de vice, or if you hav e any questions, comments, or suggestions concerning this manual, contact Cabletron Systems T echnical Support: By phone (603) 332-9400 Monday – Friday; 8 A . M . – 8 P . M . Eastern T ime By CompuServe GO CTR ON from any[...]

SEHI User’ s Guide 2-1 CHAPTER 2 SEHI FEATURES AND OPTIONS This chapter provides an o verview of the SEHI-22FL and contains sections detailing features and av ailable options. Figure 2-1 Front and Rear Views of the SEHI-22FL NO TE The term SEHI (Stackable Ethernet Hub with Intelligence) is used throughout this manual when describing f eatures and[...]

Chapter 2: SEHI F eatures and Options 2-2 SEHI User’ s Guide 2.1 SEHI OVERVIEW The SEHI-22FL is an intelligent repeating hub providing front panel ports for network connections and a rear panel HubST A CK Interconnect Bus port for stackable connections. The SEHI is designed to manage the Cabletron Systems SEH series of non-intelligent stackable h[...]

Stackab le Capabilities SEHI User’ s Guide 2-3 RESET Button Resetting the hub with the front panel RESET button reboots the SEHI and initializes the processor . Local Management Manage the SEHI and attached segments through Local Management on the SEHI. Local Management provides full pack et and error statistics for the entire stack, indi vidual [...]

Chapter 2: SEHI F eatures and Options 2-4 SEHI User’ s Guide 2.5 OPTIONAL FEATURES The follo wing features are not included with the SEHI, b ut are purchased separately from Cabletron Systems. Ethernet P or t Interface Modules (EPIMs) EPIMs enable the expansion of the netw ork through a v ariety of media. Cabletron Systems of fers the EPIMs sho w[...]

SEHI User’ s Guide 3-1 CHAPTER 3 INSTALLATION REQUIREMENTS AND SPECIFICATIONS This chapter describes cabling requirements, network guidelines, and operating specifications for the SEHI. The network must meet the requirements and conditions specified in this chapter to obtain satisfactory performance from this equipment. F ailure to follo w thes[...]

Chapter 3: Installation Requirements and Specifications 3-2 SEHI User’ s Guide 3.1.1 HubST A CK Inter connect Cable Requirements Attach the SEHI to modules in the stack with the SEHI HubST ACK Interconnect cable av ailable only from Cabletron Systems. Refer to Chapter 1 for cable part numbers. The cable attaches to the SEHI rear panel bus port. [...]

Cable Specifications SEHI User’ s Guide 3-3 3.1.3 10B ASE-T UTP and STP Cable Specifications The de vices and 10B ASE-T T wisted Pair Segments connected to an SEHI EPIM-T module must meet the IEEE 802.3 10B ASE-T specifications sho wn belo w: Length The IEEE 802.3 10B ASE-T standard requires that 10BASE-T de vices transmit ov er a 100 meter (3[...]

Chapter 3: Installation Requirements and Specifications 3-4 SEHI User’ s Guide Crosstalk Crosstalk is caused by signal coupling between the dif ferent cable pairs contained within a multi-pair cable bundle. 10B ASE-T transceivers are designed so that the user does not need to be concerned about cable crosstalk, provided the cable meets all other[...]

COM P or t Requirements SEHI User’ s Guide 3-5 3.3 COM P OR T REQUIREMENTS The RJ45 COM port supports access to a Local Management Console. The Console port supports a Digital Equipment Corporation, VT320 terminal or PC emulation of the VT320 terminal. Figure 3-2 sho ws the pinouts for the RJ45 COM port. Figure 3-2 COM P or t Pinouts 3.4 T RANSCE[...]

Chapter 3: Installation Requirements and Specifications 3-6 SEHI User’ s Guide 3.5 OPERATING SPECIFICATIONS The operating specifications for the SEHI are described in this section. Cabletron Systems reserves the right to change these specifications at an y time without notice. System Specifications Operating System Memory: 1.5 MB Internal Pro[...]

P ower Supply Requirements SEHI User’ s Guide 3-7 JAM Output Specifications Collisions are propagated through the network using the J AM signal of an alternating pattern of 1’ s and 0’ s in accordance with 802.3 specifications for a repeater unit. Fragment Extension Specifications Fragments are extended to a minimum of 96 bits using the J [...]

Chapter 3: Installation Requirements and Specifications 3-8 SEHI User’ s Guide 3.7 EN VIRONMENTAL REQUIREMENTS The en vironmental requirements for the SEHI are detailed in this section. Operating T emperature: 5 ° C to 40 ° C (41 ° F to 104 ° F) Storage T emperature: -30 ° C to 90 ° C (-22 ° F to 194 ° F) Operating Humidity: 5% to 95% (n[...]

SEHI User’ s Guide 4-1 CHAPTER 4 INSTALLATION This chapter outlines the procedure for attaching the SEHI to the network as a stackable or standalone de vice. Ensure that the network meets the guidelines and requirements outlined in Chapter 3, Installation Requirements and Specifications , before installing the SEHI. 4.1 UNPACKING THE SEHI Unpack [...]

Chapter 4: Installation 4-2 SEHI User’ s Guide 4.2 PRE-INSTALLATION T EST The SEHI is equipped with an NVRAM reset switch (Figure 4-1) located behind the grillwork on the side of the hub . Ensure that this switch is in the DOWN position by looking in through the grillw ork on the right side of the hub . If the switch is UP , move it into the DO W[...]

Installing the SEHI SEHI User’ s Guide 4-3 4.3.1 T abletop or Shelf Installation This section provides guidelines for installation on a tabletop or shelf. T abletop and shelf installations must be within reach of the network cabling and meet the requirements listed belo w: • A single phase grounded po wer receptacle that meets the po wer supply[...]

Chapter 4: Installation 4-4 SEHI User’ s Guide 4.3.2 Rackmount Installation T o install the SEHI in a 19-inch rack, Cabletron Systems of fers an accessory kit that includes rackmount brackets, mounting scre ws, and a strain-relief bracket for cable management. The accessory kit is not included with the SEHI, but can be purchased separately from C[...]

Installing the SEHI SEHI User’ s Guide 4-5 Rack Mounting the SEHI Refer to Figure 4-4 and proceed as follo ws to install the SEHI into a 19-inch rack. 1. Remove four cover screws (two from each side) located along the front edges of each side of the SEHI. 2. Using the four 6-32 x 3/8-inch replacement flathead cover screws provided in the SEHI-ACC[...]

Chapter 4: Installation 4-6 SEHI User’ s Guide Figure 4-5 Installing the SEHI in the Rack If the installation requires stacking the SEHI, proceed to Section 4.3.3. Otherwise, continue by connecting po wer as described in Section 4.4. 4.3.3 Stacking the SEHI The rear panel of the SEHI has an Interconnect Bus Out Port (male connector). Daisy chain [...]

Installing the SEHI SEHI User’ s Guide 4-7 T o stack the SEHI together with an SEH non-intelligent hub, proceed as follo ws: 1. Attach the SEHI HubSTACK Interconnect cable to the “OUT” port on the rear panel of the SEHI as shown in Figure 4-6. 2. Attach the other end of the SEHI HubSTACK Interconnect cable to the “IN” port on the rear pan[...]

Chapter 4: Installation 4-8 SEHI User’ s Guide If one end of a HubST ACK Interconnect cable is disconnected without disconnecting the other end attached to the hub, disconnect the cable from the OUT port as sho wn in Figure 4-7 to ensure that the HubST ACK Interconnect cable is terminated properly . Figure 4-7 Disconnecting the HubST A CK Interco[...]

Adding/Replacing EPIMs SEHI User’ s Guide 4-9 4.5 ADDING/REPLACING EPIMS This section contains procedures on ho w to add or replace an Ethernet Port Interface Module (EPIM) to upgrade or change the capabilities of your SEHI. After installing a new EPIM, refer to the appropriate EPIM section in Appendix A to verify proper operation. Perform the fo[...]

SEHI User’ s Guide 5-1 CHAPTER 5 CONNECTING TO THE NETW ORK This chapter outlines the procedure for connecting the SEHI to a network. Ensure that the network meets the guidelines and requirements outlined in Chapter 3, Installation Requirements and Specifications , before installing the SEHI. 5.1 CONNECTING THE SEHI TO THE NETWORK The procedure f[...]

Chapter 5: Connecting to the Network 5-2 SEHI User’ s Guide • Label the fiber optic cable to indicate which fiber is recei ve and which is transmit. Cabletron Systems fiber optic cable is labeled so that one fiber is labeled 1, and the other fiber is labeled 2 at both ends of the cable. If the cable was not purchased from Cabletron Systems[...]

Connecting the SEHI to the Network SEHI User’ s Guide 5-3 3. Attach the fiber labeled 2 to the applicable TX port, on the SEHI. 4. At the other end of the fiber optic cable, attach the fiber labeled 1 to the transmit port of the device. 5. Attach the fiber labeled 2 to the receive port. 6. Check that the LNK LED for the appropriate port is on. If[...]

Chapter 5: Connecting to the Network 5-4 SEHI User’ s Guide 5.1.2 Connecting a UTP Segment to an EPIM-T Before connecting a segment to the EPIM-T , check each end of the segment to determine if the wires cross o ver for proper connection. If the wires do not cross ov er, use the switch on the EPIM-T to internally cross ov er the RJ45 port. Figure[...]

Connecting the SEHI to the Network SEHI User’ s Guide 5-5 If a link is not established, contact Cabletron Systems T echnical Support. 5.1.3 Connecting a Fiber Segment to an EPIM-F1/F2/F3 When connecting a fiber optic link segment to an EPIM-F1, F2, or F3 keep the follo wing in mind: • When connecting a fiber optic link segment with SMA 906 co[...]

Chapter 5: Connecting to the Network 5-6 SEHI User’ s Guide Connect a fiber optic link segment to an EPIM-F1, EPIM-F2, or an EPIM-F3 as follo ws: 1. Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors on each fiber strand. 2. Attach the fiber labeled 1 to the ap[...]

Connecting the SEHI to the Network SEHI User’ s Guide 5-7 Figure 5-3 The EPIM-F1, EPIM-F2, and EPIM-F3 SMA 905 Connectors SMA 906 Connectors w/ Half Alignment Sleeves ST Connectors ST Connectors F1/F2 F1/F2 F3 1490_15 SEHI Book Page 7 Friday, April 19, 1996 10:46 AM[...]

Chapter 5: Connecting to the Network 5-8 SEHI User’ s Guide 5.1.4 Connecting a Thin Coaxial Segment to an EPIM-C T o connect a thin coaxial segment to an EPIM-C: 1. Set the Internal Termination Switch, located to the right of the port and labeled TERM to one of the following: • The On position ( • ) if the thin coaxial segment connected direc[...]

Connecting the SEHI to the Network SEHI User’ s Guide 5-9 Figure 5-4 The EPIM-C 5.1.5 Connecting an A UI Cable to an EPIM-A Connect an EPIM-A to an external netw ork segment as follo ws: 1. Attach an external transceiver to the network segment to be connected to the AUI port. Refer to the applicable transceiver manual. 2. Attach an AUI cable no l[...]

Chapter 5: Connecting to the Network 5-10 SEHI User’ s Guide Figure 5-5 The EPIM-A 5. Check that the PWR LED on the EPIM-A is on. If the LED is not on, contact Cabletron Systems Technical Support. 6. If the PWR LED is on with the AUI cable disconnected, continue with the following checks: a. Check the A UI connections for proper pinouts. The pino[...]

Connecting the SEHI to the Network SEHI User’ s Guide 5-11 5.1.6 Connecting an A UI Cable to an EPIM-X Perform the follo wing steps to connect an EPIM-X to a de vice not requiring SQE: 1. Check that the SQE LED on the EPIM-X is off. If the SQE LED is on, check the position of the SQE switch. 2. Attach one end of an AUI cable of up to 50 meters in[...]

Chapter 5: Connecting to the Network 5-12 SEHI User’ s Guide 5.2 FINISHING THE INSTALLATION The SEHI is no w ready for operation. Before placing the network into service, test the installation thoroughly , making sure that all stations can be addressed and that the SEHI and all stations are indicating normal operation. Ensure that the networking [...]

SEHI User’ s Guide 6-1 CHAPTER 6 T ROUB LESHOOTING This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems. It also describes ho w to reset the SEHI and ho w to reset the NVRAM switch. 6.1 INSTALLATION CHECKOUT After connecting the SEHI to the network, v erify that the packets pass between all Eth[...]

Chapter 6: T roubleshooting 6-2 SEHI User’ s Guide 2. If the remote station is ready and the LNK LED is on, but no data passes through the port, one of the following two conditions may exist: • Network management disabled the port. • The port is segmented either because the collision detector w as on for more than 110 µ s or the SEHI detecte[...]

Using LANVIEW SEHI User’ s Guide 6-3 Figure 6-1 LANVIEW LEDs PWR When this green LED is on, it indicates that the SEHI is recei ving po wer . If this LED is of f, it indicates a loss of input po wer . Check the input po wer source (circuit breaker , fuse, etc.). If the proper source po wer is present, the problem could be with the SEHI. CPU This [...]

Chapter 6: T roubleshooting 6-4 SEHI User’ s Guide CLN This red LED indicates that a collision has occurred on one of the ports. RCV When a yello w RCV LED flashes, it indicates that the SEHI is recei ving data packets from the associated port se gment. Each SEHI port has a corresponding RCV LED. The netw ork RCV port LEDs are labeled 1-12 and t[...]

Setting the NVRAM Switch SEHI User’ s Guide 6-5 6.4 SETTING THE NVRAM SWITCH The SEHI uses NVRAM (Non-V olatile Random Access Memory) to store user-entered parameters such as IP address and Community Names. T o reset these parameters to the factory defaults, refer to Figure 6-2 and perform the follo wing steps: 1. With the power ON and using a no[...]

SEHI User’ s Guide 7-1 CHAPTER 7 LOCAL MANAGEMENT This chapter explains ho w to set up a management terminal to access the SEHI Local Management. It also explains ho w to use the Local Management screens and commands. Use Local Management to accomplish the follo wing tasks: • Assign an IP address and subnet mask. • Select a default gate way .[...]

Chapter 7: Local Management 7-2 SEHI User’ s Guide 7.1 LOCAL MANAGEMENT KE YBOARD CON VENTIONS All ke y names appear in this manual as capital letters. For e xample, the enter (return) ke y appears as ENTER and the space bar appears as SP A CE bar . T able 7-1 explains the keyboard con ventions used in this manual as well as the ke y functions. T[...]

Management T erminal Setup SEHI User’ s Guide 7-3 7.2 MANAGEMENT T ERMINAL SETUP Use one of the follo wing systems to access Local Management: • A Digital Equipment Corporation VT series terminal • A VT type terminal running emulation programs for the Digital Equipment Corporation VT series • An IBM or compatible PC running a VT series emul[...]

Chapter 7: Local Management 7-4 SEHI User’ s Guide Console Cable Configuration Use the RJ45 Cable Kit provided with the SEHI-A CCY -KIT package to attach the management terminal to the SEHI COM port as sho wn in Figure 7-1. Connect the console cable to the SEHI as follo ws: 1. Attach the male RJ45 connector to the COM port of the SEHI. 2. Attach[...]

Management T erminal Setup SEHI User’ s Guide 7-5 Management T erminal Setup Parameter s T able 7-2 lists the setup parameters for the local management terminal. If the terminal is a Digital Equipment Corporation VT320 terminal, press F3 to access the Setup Directory. If the Local Management terminal uses terminal emulation of the VT320, refer to[...]

Chapter 7: Local Management 7-6 SEHI User’ s Guide 7.3 ACCESSING LOCAL MANAGEMENT After configuring the local management terminal and properly attaching the cables to the SEHI, access the Local Management interface. 1. Power up the terminal. The password screen (Figure 7-2) appears. Figure 7-2 P assw ord Screen 2. Enter the Password . The factor[...]

The Feature Selection Screen SEHI User’ s Guide 7-7 Figure 7-3 Feature Selection Screen 7.4 THE FEATURE SELECTION SCREEN The Feature Selection screen is the main menu screen for SEHI Local Management. There are fiv e screen options in the Feature Selection screen: Community Name T able, IP Address Assignment, Component T rap T able, SNMP T ool S[...]

Chapter 7: Local Management 7-8 SEHI User’ s Guide 7.5 THE COMMUNITY NAME T ABLE SCREEN T o access the Community Name T able screen from the Feature Selection screen, use the arro w ke ys to highlight the Community Name Table option, then press ENTER or F6 . The Community Name T able screen sho wn in Figure 7-4 appears. Figure 7-4 Community Name [...]

The Community Name T able Screen SEHI User’ s Guide 7-9 A CCESS Indicates the access status accorded each community name. Possible conditions are as follo ws: B ASIC-READ This allo ws Read-Only access to Local Management, but e xcludes read privile ges to the Component T rap screen. READ-ONL Y This allo ws Read-Only access to Local Management, bu[...]

Chapter 7: Local Management 7-10 SEHI User’ s Guide 6. To exit the screen, press the appropriate Function key or use the arrow keys to highlight the RETURN command. 7. Press ENTER . The Feature Selection screen appears. 7.6 THE CONFIGURATION SCREEN T o access the Configuration screen from the Feature Selection screen, use the arro w ke ys to hig[...]

The Configuration Screen SEHI User’ s Guide 7-11 The follo wing sections explain each field on the Configuration screen. I/F The number of the interface corresponding to the channels o ver which packets with that IP Address pass. On the SEHI, this value is “1. ” IP Address Displays the IP address of the SEHI. SubNET Mask Displays the subne[...]

Chapter 7: Local Management 7-12 SEHI User’ s Guide Setting the IP Address Use the follo wing steps to set the IP Address: 1. Use the arrow keys to highlight the IP Address field. 2. Enter the IP address into this field. The format for this entry is XXX.XXX.XXX.XXX, with values for XXX being from 0 to 255. The screen beeps if non-numerics or adja[...]

The Configuration Screen SEHI User’ s Guide 7-13 2. Enter the subnet mask into this field. The format for this entry is XXX.XXX.XXX.XXX with values for XXX being from 0 to 255. 3. Press ENTER . 4. Use the arrow keys to highlight the SAVE option, then press ENTER or F6 . The “SAVED OK” message appears indicating that the changes have been sav[...]

Chapter 7: Local Management 7-14 SEHI User’ s Guide Exiting the Configuration Screen Use the follo wing steps to exit the Configuration screen and return to the Feature Selection screen: 1. Press the appropriate Function key. To return to the Feature Selection screen, use the arrow keys to highlight the RETURN command. 2. Press ENTER . The Feat[...]

The T rap T able Screen SEHI User’ s Guide 7-15 T raps Enables transmission of the traps to the network management station with the associated IP address. IP Address Indicates the IP address of the workstation recei ving trap alarms from the SEHI. Configuring the T rap T able Use the follo wing steps to configure the T rap table: 1. Use the arr[...]

Chapter 7: Local Management 7-16 SEHI User’ s Guide 7.8 THE SNMP T OOLS SCREEN This section describes ho w to use the SNMP T ools screen to access Management Information Bases (MIBs). Access to screen options depends on the access status accorded to the user’ s community name. This section describes Super-User management capabilities. SNMP T oo[...]

The SNMP T ools Screen SEHI User’ s Guide 7-17 OID PREPEND Specifies the number prefix common to all Object Identifiers (OIDs) found in the MIBs – 1.3.6.1 is the default prefix OID. This is a modifiable field. GET Allo ws the user to retrie ve MIB objects using SNMP protocol. SET Allo ws users with Read-Write and Super-User access to chan[...]

Chapter 7: Local Management 7-18 SEHI User’ s Guide Getting Individual OIDs Use the follo wing steps to “Get” indi vidual OIDs: 1. Highlight GET , using the arrow keys, then press ENTER or F6 . “<GET> OID (=|F9)” appears. 2. Use one of the following options to enter the OID: • Using the ke yboard to enter the OID minus the prepend[...]

The SNMP T ools Screen SEHI User’ s Guide 7-19 3. Press ENTER . If there is no instance of that OID, the return code will specify “MIB_NO_INSTANCE”, otherwise “DATA TYPE:” appears. 4. Enter the data type for that OID. Possible choices are integer, string, null, OID, IP address, counter, gauge, timeticks, and opaque. 5. Press ENTER . “DA[...]

Chapter 7: Local Management 7-20 SEHI User’ s Guide Cycling Thr ough OIDs Use the follo wing steps to “Cycle” through OIDs: 1. Use the arrow keys to Highlight CYCLES , then press ENTER . 2. Enter the number of cycles desired to occur after “ENTER CYCLE COUNT:”, then press ENTER . 3. Enter how many seconds delay desired between get next re[...]

The Device Statistics Screen SEHI User’ s Guide 7-21 The follo wing sections describe De vice Statistics screen fields: BYTES RECEIVED Displays the number of bytes recei ved. FRAMES RECEIVED Displays the number of frames recei ved. ERRORS RECEIVED Displays the number of errors recei ved. COLLISIONS Displays the number of collisions recei ved. OO[...]

Chapter 7: Local Management 7-22 SEHI User’ s Guide PORT ADMIN. ST A TUS Displays the administrati ve status of the port selected. The two possible status messages are Enable or Disable. PORT SEG. ST A TUS Displays the segmentation status of the port selected. The two possible status messages are Segmented or Unse gmented. The SEHI and SEH automa[...]

The Device Statistics Screen SEHI User’ s Guide 7-23 PORT This command lets the user vie w port statistics for ports 1-26 of the selected module. Selecting the Appropriate Module/P or t When the De vice Statistics screen first appears, statistics are displayed for Module 1 and Port 1. T o view statistics for another module and port, use the Modu[...]

Chapter 7: Local Management 7-24 SEHI User’ s Guide Using the DISABLE PORT Command The DISABLE POR T command lets the user disable the port selected in the PORT command. The user must first use the Port command to select the desired port. T o set the DISABLE POR T command: 1. Use the arrow keys to highlight the DISABLE PORT command at the bottom[...]

SEHI User’ s Guide A-1 APPENDIX A EPIM INF ORMATION A.1 EPIM SPECIFICATIONS EPIMs enable the connection of the SEHI to the main network using dif ferent media types. Cabletron Systems of fers a v ariety of EPIMs. The follo wing sections explain specifications for each EPIM. A.1.1 EPIM-T The EPIM-T is an RJ45 connector supporting UTP cabling. It [...]

Appendix A: EPIM Information A-2 SEHI User’ s Guide A.1.2 EPIM-F1 and EPIM-F2 The EPIM-F1 and EPIM-F2 sho wn in Figure A-2 support Multimode Fiber Optic cabling. Each EPIM has an internal Cabletron Systems FOT-F Fiber Optic Transceiver . The EPIM-F1 is equipped with SMA Connectors and the EPIM-F2 is equipped with ST Connectors. Specifications fo[...]

EPIM Specifications SEHI User’ s Guide A-3 A.1.3 EPIM-F3 The EPIM-F3 (Figure A-3) supports Single Mode Fiber Optic cabling. It has an internal Cabletron Systems FOT-F Fiber Optic Transceiver and is equipped with ST Connectors. EPIM-F3 specifications are listed belo w . Figure A-3 EPIM-F3 T ransmitter Power decreases as temperatures rise and inc[...]

Appendix A: EPIM Information A-4 SEHI User’ s Guide A.1.4 EPIM-C The EPIM-C supports thin coaxial cabling and is equipped with an internal Cabletron Systems TMS-3 Transceiver . Use the TERM switch on the front of the EPIM-C to set the internal 50-ohm terminator . This eliminates the need to connect the port to a T -connector and terminator . Figu[...]

EPIM Specifications SEHI User’ s Guide A-5 A.1.5 EPIM-A and EPIM-X (A UI Port) The EPIM-A is a DB15 female connector used to attach segments to an external transcei ver . The EPIM-X is equipped with dual internal transcei vers. It has a DB15 male connector used to attach se gments to an A UI cable. Figure A-5 shows both modules. Figure A-5 The E[...]

SEHI User’ s Guide B-1 APPENDIX B IMAGE FILE DOWNLOAD USING OIDs This appendix provides instructions for setting up a TFTP server and to do wnload an image file to the SEHI by setting specific MIB OID strings. Set the OID strings with the SNMP T ools screen described in Chapter 7, Section 7.8. The SEHI supports the Standard TFTP Do wnload appli[...]

Appendix B: Image File Download Using OIDs B-2 SEHI User’ s Guide B.1 SETTING UP A UNIX W ORKSTATION AS A TFTP SERVER Due to v ariations between UNIX systems and indi vidual configurations, this section provides only GUIDELINES for configuring a UNIX workstation to perform an image file do wnload. The instructions include command examples, whe[...]

Standard TFTP Download SEHI User’ s Guide B-3 6. Store the hex image file in the /tftpboot directory as sehi.hex. 7. Edit the /etc/inetd.conf file by removing anything prior to the tftpboot daemon (e.g., the # sign) that comments-out the line. 8. Kill the inetd process (e.g., unix% kill -HUP ‘process ID number’ ), and then restart the process[...]

Appendix B: Image File Download Using OIDs B-4 SEHI User’ s Guide • Enter the FULL path to the image file in the ctDL TFTPRequest OID, including the name of the image file (e.g., c:/tftpboot/sehi.hex). Table B-1 Standard TFTP Download Procedure Step OID Name OID Number Data T ype SNMP OID Data 1. ctDLForceOnBoot 1.3.6.1.4.1.52.4.1.5.8.1. 1.0 [...]

SEHI User’ s Guide Index-1 INDEX Numerics 10BASE-FL attenuation 3-2 budget and propagation delay 3-2 cable requirements 3-2 10BASE-T cable length 3-3 crosstalk 3-4 delay 3-3 impedance 3-3 insertion loss 3-3 jitter 3-3 noise 3-4 temperature 3-4 UTP and STP specifications 3-3 A AUI cable 5-9, 5-11 C Cable specifications 3-1 fiber optic 3-2 UTP and [...]

Index Index-2 SEHI User’ s Guide N Network connection 5-1 AUI 5-9, 5-11 EPIM-A 5-9 EPIM-C 5-8 EPIM-F1/F2/F3 5-5 EPIM-T 5-4 EPIM-X 5-11 fiber optic segment 5-5 thin coaxial 5-8 Unshielded Twisted Pair 5-4 Network port specifications SEHI-22FL 3-4 NVRAM pre-installation checkout 4-2 setting 6-5 O OIDs 7-16 Operating specifications 3-6 P Port ENABLE[...]

PO WER SUPPL Y CORD The mains cord used with this equipment must be a 2 conductor plus ground type with minimum 0.75 mm square conductors and must incorporate a standard IEC appliance coupler on one end and a mains plug on the other end which is suitable for the use and application of the product and that is approved for use in the country of appli[...]