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INTRODUCTION

Page 1-1

CHAPTER 1

INTRODUCTION

Welcome to the Cabletron Systems

SEHI-22, SEHI-24, SEHI-32,

and SEHI-34 10BASE-T Intelligent Stackable Hub User’s
Guide

. This manual explains installation instructions and provides

reference information for the SEHI-22, 24, 32, and 34.

Note

: The term SEHI (Stackable Ethernet Hub with Intelligence) is

used throughout this manual when describing features and functions
that are common to the SEHI-22, 24, 32, and 34.

1.1

USING THIS MANUAL

Read through this manual to gain an understanding of the features
and capabilities of the SEHI. A general knowledge of Ethernet and
IEEE 802.3 type data communications networks and their physical
layer components will be helpful when installing the SEHI.

Chapter 1,

Introduction

, outlines the contents of this manual, briefly

describes SEHI features, and concludes with a list of related manuals.

Chapter 2,

Installation Requirements/Specifications

, describes

installation requirements, network guidelines, and SEHI operating
specifications.

Chapter 3,

Installation

, contains instructions for installing your

SEHI as a stackable or stand-alone hub.

Chapter 4,

Connecting to the Network

, explains how to connect the

SEHI to the network using the various media types.

Chapter 5,

Troubleshooting,

describes how to use the LANVIEW

LEDs to troubleshoot network problems.

Chapter 6,

Local Management

, describes how to use SEHI Local

Management screens and the available commands.

Appendix A,

Twisted Pair Wiring

Tables

, lists Punch Down Block

pinouts.

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Содержание HubSTACK SEHI-34

Страница 1: ...SEHI 22 SEHI 24 SEHI 32 AND SEHI 34 10BASE T INTELLIGENT STACKABLE HUB USER S GUIDE CABLETRON SYSTEMS P O Box 5005 Rochester NH 03867 0505 The Complete Networking Solution ...

Страница 2: ...MATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES Copyright February 1994 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Order Number 9030916 01 February 94 SPECTRUM LANVIEW Remote LANVIEW and HubSTACK are trademarks of Cabletron Systems Inc IBM i...

Страница 3: ...perator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case 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 t...

Страница 4: ...BILITY IF YOU DO NOT AGREE TO THE TERMS OF THIS AGREEMENT PROMPTLY RETURN THE UNUSED PRODUCT TO THE PLACE OF PURCHASE FOR A FULL REFUND CABLETRON SOFTWARE PROGRAM LICENSE 1 LICENSE You have the 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 a...

Страница 5: ...ABLETRON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTEES IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product a was developed solely at priv...

Страница 6: ...rts and EPIM T Module 2 2 2 1 3 Multimode Fiber Optic Cable Specifications for the EPIM F1 and EPIM F2 Modules 2 4 2 1 4 Single Mode Fiber Optic Cable Specifications for the EPIM F3 Module 2 5 2 1 5 Thin Net Network Requirements for the EPIM C Mod ule 2 6 2 1 6 AUI Cable Requirements for the EPIM A and EPIM X Modules 2 7 2 2 NETWORK PORT SPECIFICATIONS 2 7 2 2 1 SEHI 22 and SEHI 24 Network Port Sp...

Страница 7: ...4 4 1 4 Connecting a Fiber Optic Link Segment to an EPIM F1 EPIM F2 or EPIM F34 5 4 1 5 Connecting a Thin Net Segment to an EPIM C 4 8 4 1 6 Connecting an AUI Cable to an EPIM A 4 10 4 1 7 Connecting an AUI Cable to an EPIM X 4 11 4 2 FINISHING THE INSTALLATION 4 12 CHAPTER 5 TROUBLESHOOTING 5 1 INSTALLATION CHECK OUT 5 1 5 2 USING LANVIEW 5 2 5 3 USING THE RESET BUTTON 5 4 CHAPTER 6 LOCAL MANAGEM...

Страница 8: ...CONTENTS vii APPENDIX B TWISTED PAIR WIRING TABLES A 1 ...

Страница 9: ...s and their physical layer components will be helpful when installing the SEHI Chapter 1 Introduction outlines the contents of this manual briefly describes SEHI features and concludes with a list of related manuals Chapter 2 Installation Requirements Specifications describes installation requirements network guidelines and SEHI operating specifications Chapter 3 Installation contains instructions...

Страница 10: ...ns and a rear panel HubSTACK Interconnect Bus port for stackable connections The SEHI is designed to manage Cabletron Systems SEH series of non intelligent stackable hubs Figure 1 1 The SEHI 24 and SEHI 34 SEH INTERCONNECT OUT SEHI 24 10BASE T HUB WITH LANVIEW EPIM 1 EPIM 2 PWR CPU CLN E 1 E 2 RCV LNK RCV LNK HubSTACK 10BASE T HUB WITH LANVIEW SEHI 24 24X 23X 22X 21X 20X 19X 18X 17X 16X 15X 14X 13...

Страница 11: ...oblem segments and reconnects repaired segments to the network This feature minimizes the impact on network operation resulting from a problem on one segment by isolating the problem segment Only devices on the problem segment are affected When the problem is solved the SEHI automatically reconnects the isolated segment to the network Polarity Detection and Correction Each twisted pair port on the...

Страница 12: ...STACKABLE CAPABILITIES The SEHI intelligent hub is designed to manage Cabletron s SEH series of non intelligent hubs The SEHI serves as the logical top of the stack It manages all SEH hubs in the stack providing full packet and error statistics for the entire stack individual device or individual port You can stack together up to four SEH non intelligent hubs with one SEHI using Cabletron s extern...

Страница 13: ...terconnect cables to stack hubs together Table 1 2 lists the part number and application for each cable Table 1 1 EPIMs EPIM Media Type Connector EPIM A AUI DB15 Female EPIM C 10BASE 2 Thin Coaxial BNC EPIM T 10BASE T Unshielded Twisted Pair RJ45 EPIM X Standard Transceiver DB15 Male EPIM F1 Multimode Fiber SMA EPIM F2 Multimode Fiber ST EPIM F3 Single Mode Fiber ST Table 1 2 HubSTACK Interconnect...

Страница 14: ...ll your SEHI in a 19 inch rack or mount it on a wall Cabletron offers an accessory package that includes brackets and mounting screws The part number for the accessory package is SEHI ACCY KIT 1 8 RELATED MANUALS Use the Cabletron Systems SEH 22 24 and SEH 32 34 User s Guide to supplement the procedures and other technical data provided in this manual The procedures contained in the SEH 22 24 and ...

Страница 15: ...e Fiber Optic Single Mode Fiber Optic or Thin Coaxial cabling The rear panel Interconnect Bus port supports Cabletron Systems HubSTACK Interconnect cables for stackable applications Take care in planning and preparing the cabling and connections for your network The quality of the connections and the length of cables are critical factors in determining the reliability of your network The following...

Страница 16: ...T link is 11 5 dB at all frequencies between 5 0 and 10 MHz This includes the attenuation of the cables connectors patch panels and reflection losses due to impedance mismatches in the link segment Impedance Cabletron Systems 10BASE T Twisted Pair products will work on twisted pair cable with 75 to 165 ohms impedance Unshielded twisted pair cables typically have an impedance of between 85 to 110 o...

Страница 17: ...ise can be caused by either crosstalk or externally induced impulses Impulse noise may cause data errors if the impulses occur at very specific times during data transmission Generally the user need not be concerned about noise If noise related data errors are suspected it may be necessary to either reroute the cable or eliminate the source of the impulse noise Temperature Multi pair PVC 24 AWG te...

Страница 18: ... be calculated and taken into consideration before fiber optic cable runs are incorporated in any network design Fiber optic budget is the combination of the optical loss due to the fiber optic cable in line splices and fiber optic connectors Propagation delay is the amount of time it takes data to travel from the sending device to the receiving device Total propagation delay allowed for the entir...

Страница 19: ...fiber optic cable length the fiber optic budget total loss of 10 0 dB or less between stations and total network propagation delay should be calculated and considered before fiber optic cable runs are incorporated in any network design Propagation delay is the amount of time it takes data to travel from the sending device to the receiving device Total propagation delay allowed for the entire netwo...

Страница 20: ...the far end of each thin net segment Connectors A maximum of 29 tee connectors may be used throughout the length of cable segment for host connections If an excessive number of barrel connectors are used within the cable segment such as finished wall plates with BNC feed throughs then a reduced number of host connections may be required For special network design contact Cabletron Systems Technica...

Страница 21: ...ngth The AUI Cable must not exceed 50 meters in length If 28 AWG thin office drop AUI cable is used then the maximum cable length is limited to 50 feet 15 24 meters Grounding The connector shell of the EPIM A and the EPIM X are connected to ground 2 2 NETWORK PORT SPECIFICATIONS The SEHI 22 and SEHI 24 network ports are shielded RJ45 connectors that support both STP and UTP cabling The SEHI 32 and...

Страница 22: ...nouts Figure 2 1 RJ45 Network Ports 2 2 2 SEHI 32 and SEHI 34 Network Port Specifications The SEHI 32 and SEHI 34 provide 50 pin Champ connectors for network connections as shown in Figure 2 2 Table 2 3 shows the pinouts for the Champ connector Figure 2 2 SEHI 34 Network Ports 1 2 3 4 5 6 7 8 1 Receive 5 Not Used 2 Receive 6 Transmit 3 Transmit 7 Not Used 4 Not Used 8 Not Used 12X 11X 10X 12X 1X 2...

Страница 23: ...34 RX 5 Red Brown 10 TX 5 Gray Red 35 TX 5 Red Gray 11 RX 6 Blue Black 36 RX 6 Black Blue 12 TX 6 Orange Black 37 TX 6 Black Orange 13 RX 7 Green Black 38 RX 7 Black Green 14 TX 7 Brown Black 39 TX 7 Black Brown 15 RX 8 Gray Black 40 RX 8 Black Gray 16 TX 8 Blue Yellow 41 TX 8 Yellow Blue 17 RX 9 Orange Yellow 42 RX 9 Yellow Orange 18 TX 9 Green Yellow 43 TX 9 Yellow Green 19 RX 10 Brown Yellow 44...

Страница 24: ...It has an internal Cabletron Systems TPT T 10BASE T Twisted Pair Transceiver The slide switch on the EPIM T determines the cross over status of the cable pairs If the switch is on the X side the pairs are internally crossed over If the switch is on the side the pairs are not internally crossed over Figure 2 3 shows the pinouts for the EPIM T in both cross over positions Figure 2 3 EPIM T Pinouts P...

Страница 25: ... 30 5 dBm 28 0 dBm Peak Input Power 7 6 dBm 8 2 dBm Transmitter Power 50 125 µm fiber 13 0 dBm 15 0 dBm 13 0 dB 17 5 dB 62 5 125 µm fiber 10 0 dBm 12 0 dBm 16 0 dB 20 5 dB 100 140 µm fiber 7 0 dBm 9 0 dBm 19 0 dB 23 5 dB Error Rate Better than 10 10 Note The transmitter power levels and receive sensitivity levels listed are Peak Power Levels after optical overshoot A Peak Power Meter must be used ...

Страница 26: ...for the EPIM F3 are listed below Figure 2 5 EPIM F3 Note Transmitter Power decreases as temperatures rise and increases as temperatures fall Use the Output Power Coefficient to calculate increased or decreased power output for your operating environment For example the typical power output at 25 C is 16 4 dBm For a 4 C temperature increase multiply the typical coefficient 0 15 dBm by four and add ...

Страница 27: ...e measuring power levels with an Average Power Meter add 3 dBm to the average power measurement to correctly compare the average power values measured to the values listed above i e 33 5 dBm average 3 dB 30 5 dBm peak Receive Sensitivity dBm Less Power More Power 40 35 30 25 20 15 10 5 0 Maximum Receive Input Power Transmitter Power At 25 C into 8 3 125µm fiber Minimum Sensitivity 30 0 Typical Sen...

Страница 28: ...tor Figure 2 6 shows the setting for the terminator switch Figure 2 6 EPIM C Connector Type BNC receptacle with gold center contact for use with BNC type tee connectors and RG 58 thin net cable Grounding For safety only one end of a thin net segment should be connected to earth ground Connection to earth ground at more than one point on the segment may cause dangerous ground currents The BNC port ...

Страница 29: ... with dual internal transceivers It has a DB15 male connector used to attach segments to an AUI cable Figure 2 7 shows both modules Figure 2 7 The EPIM A and EPIM X DB15 Pinouts Pin 1 Logic Ref 9 Collision 2 Collision 10 Transmit 3 Transmit 11 Logic Ref 4 Logic Ref 12 Receive 5 Receive 13 Power 12Vdc 6 Power Return 14 Logic Ref 7 No Connection 15 No Connection Connector Shell Protective Ground ...

Страница 30: ...th an EPIM A the following requirements must be met The transceiver or Ethernet Device to which the module will be connected must meet IEEE 802 3 standards and or Ethernet Version 1 0 or Version 2 0 standards The Signal Quality Error SQE test function on the transceiver must be disabled if you connect it to a repeater or to an Ethernet Version 1 0 device In addition some Version 2 0 equipment does...

Страница 31: ...y 1 5 MB Internal Processor Intel i960 operating at 16 MHz Ethernet Controller National Semiconductor DP83916 Non Volatile RAM 32 KB with battery back up EPROM 64 KB FLASH MEMORY 1 MB Delay Times Start of Packets Twisted Pair to EPIM A 1 10 microseconds Twisted Pair to Twisted Pair 1 00 microseconds EPIM A to Twisted Pair 1 00 microseconds Delay Times JAM Twisted Pair to EPIM A 960 nanoseconds Pre...

Страница 32: ...t is on for longer than approximately 110 µs This fault protection will reset automatically after one packet is transmitted received onto the fault protected segment without causing a collision POWER SUPPLY REQUIREMENTS Note The SEHI has a universal power supply This unit allows you to use an input power from 90 to 264 VAC 47 63 Hz The power supply has two outputs of 5 volts and 12 volts The maxim...

Страница 33: ... 2 No 950 and EN 60950 the EMI requirements of FCC Class A and EN 55022 Class A and the EMC requirements of EN 50082 1 Warning It is the responsibility of the person who sells the system to which the SEHI will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions PHYSICAL Dimensions 2 8H x 17 0W x 13 5D inches 7 2 x 43 6 x 34 6 cm Weight 7 lbs Predicted...

Страница 34: ...ge contact Cabletron Systems Technical Support immediately 4 Read the SEHI Release Notes included in the shipping box Note Cabletron Systems includes a 3 1 2 disk with the SEHI This disk contains a backup copy of the SEHI s Flash Firmware Image File You can download the backup image file to the SEHI if the existing image becomes corrupted 3 2 INSTALLING THE SEHI You can install the SEHI to your ne...

Страница 35: ...ss than 10 C per hour The following sections provide instructions for stacking the SEHI or installing it as a stand alone device Select one of the following subsections and perform the steps that are applicable to your installation needs 3 2 1 Stacking the SEHI The rear panel of the SEHI has an Interconnect Bus Out Port male connector You daisy chain units together using Cabletron Systems HubSTACK...

Страница 36: ...t on the rear panel of the SEH as shown in Figure 3 1 2 Attach the other end of the SEH HubSTACK Interconnect cable to the IN port on the rear panel of the SEH next in the stack Figure 3 1 Stacking the SEHI SEH HubSTACK Interconnect Cables REAR VIEW SEHI Managing 4 SEH Non Intelligent Hubs SEHI HubSTACK Interconnect Cable SEH INTERCONNECT OUT SEHI 24 10BASE T HUB WITH LANVIEW SEH 24 10BASE T HUB W...

Страница 37: ...ket to the front of the SEHI as follows 1 Locate the strain relief bracket and four 8 32 x 3 8 screws from the SEHI ACCY KIT package Warning Use of longer screws may cause damage to the unit or electrical shock 2 Attach the strain relief bracket to the bottom of the SEHI as shown in Figure 3 3 Figure 3 3 Attaching the Strain Relief Disconnect SEH and SEHI Interconnect Cables at the OUT Port SEHI 2...

Страница 38: ...p 1 attach the rack mounting brackets to each end of the SEHI Figure 3 4 Installing the Rack Mount Brackets 3 With the mounting brackets installed position the SEHI between the vertical frame members of the 19 inch rack and fasten it securely with the mounting screws as shown in Figure 3 5 Figure 3 5 Installing the SEHI in the Rack Screws 4 Wall Rack Mounting Brackets 2 HubSTACK 10BASE T HUB WITH ...

Страница 39: ...ing brackets to the bottom of the SEHI as shown in Figure 3 6 There are two brackets one for each side Figure 3 6 Wall Mounting the SEHI 2 Select the wall location for the SEHI within 7 feet of a power outlet Warning There is a potential SHOCK HAZARD if there is electrical wiring within the wall that interferes with drilling for pilot holes Select a wall location where drilling pilot holes for the...

Страница 40: ... Tighten each of the anchor screws until the anchor expands holding the anchor firmly in the wall then remove the screws completely 6 Position the SEHI on the wall over the anchors and reinstall the four anchor screws to attach the SEHI to the wall as shown in Figure 3 6 Tighten the four anchor screws 3 2 5 Free Standing Installation For a free standing shelf or tabletop installation locate the SE...

Страница 41: ...ac 47 63 Hz To connect the SEHI to the power source 1 Plug the power cord into the back panel of the SEHI 2 Plug the other end of the power cord into a grounded wall outlet 3 Verify that the PWR LED is on this indicates that the SEHI is receiving power After the SEHI runs a self test the CPU LED blinks green indicating normal operation If the LED remains red the processor is faulty ...

Страница 42: ...rts SEHI 22 24 4 1 1 Network Ports SEHI 32 34 4 1 2 EPIM T 4 1 3 EPIM F1 F2 F3 4 1 4 EPIM C 4 1 5 EPIM A 4 1 6 EPIM X 4 1 7 Prior to connecting the network cabling check the connectors for the proper pinouts as shown in Chapter 2 4 1 1 Connecting to Network Ports SEHI 22 and SEHI 24 You attach unshielded twisted pair segments to the RJ45 Network Ports on the front panel of the SEHI Each twisted pa...

Страница 43: ...form each of the following steps until it is a Check that the 10BASE T device at the other end of the twisted pair segment is powered up b Verify that the RJ45 connector on the twisted pair segment has the proper pinouts Check the cable for continuity c Check that the twisted pair connection meets dB loss and cable specifications outlined Chapter 2 If a link still has not been established contact ...

Страница 44: ...down block To connect the SEHI into an existing twisted pair wiring system 1 Connect a 50 pin feeder cable to the Champ connector on the SEHI as shown in Figure 4 2 Figure 4 2 SEHI 32 34 Network Ports 2 Attach the feeder cable to the punch down block or patch panel In most cases you can connect the feeder cable directly to a Champ connector located on the punch down block If not you must wire the ...

Страница 45: ... not been established contact Cabletron Systems Technical Support 4 1 3 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 have been crossed over for the proper connection If the wires do not cross over use the switch on the EPIM T to internally cross over the RJ45 port Refer to Figure 4 3 to properly set the EPIM...

Страница 46: ...still has not been established contact Cabletron Systems Technical Support 4 1 4 Connecting a Fiber Optic Link Segment to an EPIM F1 EPIM F2 or EPIM F3 When connecting a fiber optic link segment to an EPIM F1 F2 or F3 keep the following in mind If you are connecting a fiber optic link segment with SMA 906 connectors to an EPIM F1 with SMA ports ensure that half alignment sleeves are in place on ea...

Страница 47: ...it When you buy fiber optic cable from Cabletron Systems it is labeled so that at one end of the cable one fiber is labeled 1 and the other fiber is labeled 2 This pattern is repeated at the other end of the cable If you did not purchase your cable from Cabletron Systems be sure you label your cable as described above Caution Do not touch the ends of the fiber optic strands and do not let the ends...

Страница 48: ...he applicable transmit port labeled TX on the module 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 SMA 905 Connectors SMA 906 Connectors w Half Alignment Sleeves ST Connectors ST Connectors F1 F2 F1 F2 F3 ...

Страница 49: ...ng a Thin Net Segment to an EPIM C To connect a thin net segment to an EPIM C refer to Figure 4 5 and perform the following steps 1 Set the Internal Termination Switch to the right of the port and labeled TERM to The on position if the thin net segment connected directly to the port will be internally terminated at the port The off position o if the thin net segment will not be terminated at the p...

Страница 50: ... thin coax segment or a terminator to the other female connector on the tee connector Figure 4 5 The EPIM C Attach thin net segment directly to BNC connector when internal termination switch is set to on When internal termination switch is set to off Connect BNC tee connector to port Attach a terminator or terminated thin net segment to one female connector of tee connector Connect a terminated th...

Страница 51: ...ransceiver manual To connect an EPIM A to an external network segment 1 Attach an external transceiver to the network segment that will be connected to the AUI port Refer to the applicable transceiver manual 2 Attach an AUI cable no longer than 50 meters in length to the transceiver connected to the network in step 1 3 Connect the AUI cable to the AUI port located on the EPIM A See Figure 4 6 4 Lo...

Страница 52: ...ron Systems Technical Support 4 1 7 Connecting an AUI Cable to an EPIM X Caution The signal quality error SQE switch remains in the OFF position for most network connections However some Data Terminal Equipment DTE requires SQE Refer to your DTE manual for SQE requirement information To connect an EPIM X to a device not requiring SQE 1 Check that the SQE LED on the EPIM X is off If the SQE LED is ...

Страница 53: ...tallation thoroughly making sure that you can address all stations and that the SEHI and all stations are indicating normal operation Ensure that the networking software is configured properly to match the installed network If you encounter errors or abnormal operation proceed to Chapter 5 Troubleshooting OFF Position Toward Front of EPIM ON Position Toward Back of EPIM OFF ON ...

Страница 54: ...evices check the link as follows 1 Check that the LNK LED if applicable for the port is on If the LED is not on a Check that the 10BASE T device at the other end of the twisted pair segment is powered up b Verify that the connector on the twisted pair segment has the proper pinouts Refer to Chapter 2 for the pin assignments for twisted pair connectors For EPIM F1 EPIM F2 check that the TX and RX f...

Страница 55: ...good packet is transmitted received without collisions If the LNK LED is still not on contact Cabletron Systems Technical Support 5 2 USING LANVIEW The SEHI incorporates the Cabletron Systems LANVIEW Status Monitoring and Diagnostics System LANVIEW LEDs can help diagnose problems such as a power failure or a cable fault The SEHI includes the following LANVIEW LEDs PWR for power status CPU for boar...

Страница 56: ...rmal operation A red LED indicates a faulty processor Note Flashing indicates an irregular LED pulse Blinking indicates a steady LED pulse LED NAME PWR Power CPU Central Processing Unit CLN Collision RCV Receive LNK Link LED COLOR Off Green Solid Off Green Flashing Green Blinking Red Solid Red Yellow Flashing Off Green Off DEFINITION No Power Power CPU in BOOT Process CPU Initializing CPU Function...

Страница 57: ...ated twisted pair segment and the 10BASE T device at the other end of the segment LNK LEDs will remain on as long as a link is maintained Each SEHI Network Port ports 1 24 has a corresponding LNK LED 5 3 USING THE RESET BUTTON The SEHI incorporates a recessed Reset button See Figure 5 1 This Reset button initializes the SEHI processor This button does NOT initialize Non Volatile Random Access Memo...

Страница 58: ...HI through the community names established in the Community Name Table designate which Network Management Workstations receive trap messages from the device navigate through the Management Information Base MIB and manage the objects within it from a remote location Given the appropriate security level the MIB is accessible from the SEHI through SNMP Tools Local Management also lets you manage each...

Страница 59: ...le cable to attach the management terminal to the SEHI The console cable is not included with the SEHI but you can purchase it separately from Cabletron as part number SEHI ACCY KIT The SEHI ACCY KIT package provides an RJ45 Cable Kit that includes the following UTP console cable with RJ45 connectors on each end Adapters for DB9 or DB25 connections Instruction Sheet The following sections explain ...

Страница 60: ... as shown in Figure 6 1 Connect the console cable to the SEHI as follows 1 Attach the male RJ45 connector to the COM port of the SEHI 2 Attach the female end 25 pin or 9 pin as applicable to the COMM port on the terminal Figure 6 1 Management Terminal Connection MANAGEMENT TERMINAL CONSOLE CABLE COM RJ45 PORT COM PORT EPIM 1 EPIM 2 HubSTACK 10BASE T HUB WITH LANVIEW SEHI 24 COM ...

Страница 61: ...ters Menu Function Selection Display Setup Columns 80 Columns Controls Interpret Controls Auto Wrap No Auto Wrap Test Cursor Cursor General Setup Mode 7 Bit Control Cursor Keys Normal Cursor Keys Communications Setup Transmit Transmit 9600 Receive Receive Transmit XOFF any option Bits Parity 8 Bits No Parity Stop Bit 1 Stop Bit Local Echo No Local Echo Port DEC 423 Data Leads Only Transmit any opt...

Страница 62: ...er User access is public or the Return key Note Your password is one of the community names specified in the Community Name Table Access to certain Local Management capabilities depends on the degree of access accorded that community name See Section 6 3 1 for more details about community names Cabletron Systems Incorporated 35 Industrial Way P O Box 5005 Rochester NH 03867 0505 U S A 603 332 9400...

Страница 63: ...n screen shown in Figure 6 3 appears Note If you do not use the terminal keyboard for 15 minutes your Local Management session ends and the screen defaults to the Password screen Figure 6 3 Feature Selection Screen Cabletron Systems Incorporated P O Box 5005 Rochester NH 03867 0505 U S A 603 332 9400 FEATURE SELECTION SEHI LOCAL MANAGEMENT F6 COMMUNITY NAME TABLE F7 IPADDRESS ASSIGNMENT F8 COMPONE...

Страница 64: ...s To exit your Local Management session use the arrow keys to highlight the EXIT LIM SERVICE command then press Return 6 3 1 The Community Name Table Screen To access the Community Name Table screen from the Feature Selection screen use the arrow keys to highlight the Community Name Table option then press Return or F6 The Community Name Table screen shown in Figure 6 4 appears Figure 6 4 Communit...

Страница 65: ...fined name through which a user can access Local Management for the SEHI Any community name assigned here acts as a password to Local Management Access Indicates the access status accorded each community name Possible conditions are Basic Read This allows read only access to Local Management but excludes read privileges to the Component Trap screen Read Only This allows read only access to Local M...

Страница 66: ... choice 2 Enter the community name up to 32 characters in length into the field 3 Press the Return key 4 Repeat steps 1 3 for editing any of the other community names 5 Use the arrow keys to highlight the SAVE command at the bottom of the screen then press the Return key or F6 The SAVED OK message appears indicating that your edits have been saved to memory Please note that the first time you try ...

Страница 67: ...errides the Port Disable setting in the Statistics screen The following sections explain each field on the Configuration screen and instructions on how to change them I F Gives the number of the interface corresponding to the channels over which packets with that IP Address are passing On the SEHI this value is always 1 IP Address Displays the IP address of the SEHI Cabletron SEHI Revision X XX XX...

Страница 68: ...rd packets to other IP subnetworks Serial Port Application Displays the port s application setting as CONSOLE Baud Rate Displays the Baud Rate setting of the device attached to the SEHI through the serial port The setting for the serial port is 9600 Port Enable Override This command lets you override the Disable Port settings in the Device Statistics screen to enable all ports in the stack Setting...

Страница 69: ... Trap Table reside on a different subnet i e across a gateway or router and you want these workstations to receive SNMP traps Use the subnet mask factory default setting of 0 0 0 0 when all trap designated workstations are on the SEHI subnet To set the subnet mask 1 Use the arrow keys to highlight the SubNET Mask field 2 Enter the subnet mask into this field The format for this entry is XXX XXX XX...

Страница 70: ...efault gateway OK appears to the right of the field 4 Use the arrow keys to highlight the SAVE option then press the Return key or F6 The SAVED OK message appears indicating that the changes have been saved to memory Using the Port ENABLE Override To set the Port ENABLE Override 1 Use the arrow keys to highlight the Port ENABLE Override field 2 Press the Return key to toggle from the default setti...

Страница 71: ... Component Trap Table option then press the Return key or F8 The Trap Table screen shown in Figure 6 6 appears Figure 6 6 Trap Table Screen The Trap Table defines the management stations that will receive SNMP Traps for alarm event notification The following sections explain each field on the Trap Table screen and instructions on how to change them SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X X...

Страница 72: ... community name 2 Press the Return key 3 Use the arrow keys to highlight the Traps field and enter Y or y to send alarms from the SEHI to the workstation or N or n to prevent alarms from being sent 4 Press the Return key 5 Use the arrow keys to highlight the appropriate Trap IP Address field 6 Enter the IP address of the workstation that you want to send traps to in this field The format for this ...

Страница 73: ...ded to your community name This section describes Super User management capabilities SNMP Tools allows you access to valuable MIB information You can get information about specific object identifiers OIDs edit the values of configurable OIDs and request the OID numerically sequential to the originally requested OID Other ways to view OIDs from the SNMP Tools screen include Walking Stepping and Cyc...

Страница 74: ...mon to all Object Identifiers OIDs found in the MIBs 1 3 6 1 is the default prefix OID This is a modifiable field Get Lets you retrieve MIB objects using SNMP protocol Set Lets users with Read Write and Super User access change modifiable MIB objects using SNMP protocol Get Next Displays the OID following the current OID SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X XX XX SNMP TOOLS SNMP COMMUNI...

Страница 75: ...ze identifies the number of bytes it takes to store that object Type specifies the object s variable type e g int integer Data displays what the object identifier represents Recall OID Recalls from memory the last OID used Step Displays the MIB walk step by step giving you time to view specific leaves in detail Cycles Allows you to specify the number of get next requests to cycle through and how m...

Страница 76: ...u can then use the keyboard to modify the recalled OID as necessary 3 Press the Return key If there is no instance of that OID the return code will specify MIB_NO_INSTANCE otherwise information about that OID s data type length and value appear Getting the Next OID To get the next OID 1 Highlight GETNEXT using the arrow keys then press the Return key or press the F8 function key GETNEXT OID F9 app...

Страница 77: ... 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 the Return key DATA appears 6 Enter the value to correspond to the OID If accepted SET OPERATION CODE XXXX OK appears otherwise an error message appears Viewing Multiple OIDs Viewing several object identifiers at one time allows you to quickly sca...

Страница 78: ...creen Stepping Through OIDs To step through an OID you can step through only after a GetNext 1 Highlight Step using the arrow keys then press the Return key Specify OID appears 2 Enter the OID only the suffix is necessary and press Return The Tools screen will begin to scroll one OID at a time through all of the sublayers of the MIB available for that OID Cycling Through OIDs To cycle through an O...

Страница 79: ...keys to highlight the Device Statistics option then press the Return key The Device Statistics screen shown in Figure 6 8 appears Figure 6 8 Device Statistics Screen The following sections describe Device Statistics screen fields and instructions on how to change them SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X XX XX DEVICE STATISTICS STACK TOTAL 3792125 16547 0 0 0 0 0 0 0 0 MODULE 1 67960 25...

Страница 80: ...iled during the transmission of the packet CRC Errors Displays the number of packets with bad Cyclic Redundancy Checks CRC that have been received from the network The CRC is a 4 byte field in the data packet that ensures that the transmitted data that is received is the same as the data that was originally sent Alignment Errors Displays the number of errors due to misaligned packets Runt Packets ...

Страница 81: ...date Freq This command lets you select the time interval between Stack Module Port counter updates You can choose update intervals in increments of 3 seconds with the Maximum interval being 99 seconds Module This command lets you view statistics for a selected module in the stack The SEHI is Module 1 and each SEH in the stack follows in sequential order Figure 6 9 shows each module number in the s...

Страница 82: ...d 2 Press the shift and keys or the key until the desired module or port number appears 3 Press the Return key Statistics associated with the selected Module and Port appear Using the Enable Port Command The Enable Port command lets you enable the port selected in the Port command You must first use the Port command to select the desired port To set the Port Enable command 1 Use the arrow keys to ...

Страница 83: ... Disable command 1 Use the arrow keys to highlight the Disable Port command at the bottom of the screen 2 Press the Return key The corresponding port is enabled and the Port Admin Status field is updated Exiting the Device Statistics Screen To exit the Device Statistics screen 1 Use the arrow keys to highlight the RETURN command at the bottom of the screen 2 Press the Return key The Feature Select...

Страница 84: ... will assist you if you are using a Punch Down Block see Figure A 1 to wire your twisted pair segments The following tables are included in this appendix Table A 1 Twisted Pair Wiring from an SEH to a Punch Down Block Table A 2 Twisted Pair Wiring from a Punch Down Block to a 10BASE T Device Table A 3 Twisted Pair Wiring Summary ...

Страница 85: ...rown Violet TX Port 11 23 Pin Pin Pin RX 46 46 Violet Blue RX A41 Violet Blue RX RX 21 21 Blue Violet RX A42 Blue Violet RX TX 47 47 Violet Orange TX A43 Violet Orange TX TX 22 22 Orange Violet TX A44 Orange Violet TX Port 10 22 Pin Pin Pin RX 44 44 Yellow Brown RX A37 Yellow Brown RX RX 19 19 Brown Yellow RX A38 Brown Yellow RX TX 45 45 Yellow Gray TX A39 Yellow Gray TX TX 20 20 Gray Yellow TX A4...

Страница 86: ...Brown TX TX 14 14 Brown Black TX A28 Brown Black TX Port 6 18 Pin Pin Pin RX 36 36 Black Blue RX A21 Black Blue RX RX 11 11 Blue Black RX A22 Blue Black RX TX 37 37 Black Orange TX A23 Black OrangeTX TX 12 12 Orange Black TX A24 Orange BlackTX Port 5 17 Pin Pin Pin RX 34 34 Red Brown RX A17 Red Brown RX RX 9 9 Brown Red RX A18 Brown Red RX TX 35 35 Red Gray TX A19 Red Gray TX TX 10 10 Gray Red TX ...

Страница 87: ...6 6 Blue Red TX A12 Blue Red TX Port 2 14 Pin Pin Pin RX 28 28 White Green RX A5 White Green RX RX 3 3 Green White RX A6 Green White RX TX 29 29 White Brown TX A7 White Brown TX TX 4 4 Brown White TX A8 Brown White TX Port 1 13 Pin Pin Pin RX 26 26 White Blue RX A1 White Blue RX RX 1 1 Blue White RX A2 Blue White RX TX 27 27 White Orange TX A3 White OrangeTX TX 2 2 Orange White TX A4 Orange WhiteT...

Страница 88: ...48 Brown Violet TX 6 RX 6 RX 6 RX Port 11 23 Pin Pin Pin B41 Violet Blue RX 1 TX 1 TX 1 TX B42 Blue Violet RX 2 TX 2 TX 2 TX B43 Violet Orange TX 3 RX 3 RX 3 RX B44 Orange Violet TX 6 RX 6 RX 6 RX Port 10 22 Pin Pin Pin B37 Yellow Brown RX 1 TX 1 TX 1 TX B38 Brown Yellow RX 2 TX 2 TX 2 TX B39 Yellow Gray TX 3 RX 3 RX 3 RX B40 Gray Yellow TX 6 RX 6 RX 6 RX Port 9 21 Pin Pin Pin B33 Yellow Orange RX...

Страница 89: ...X 3 RX B28 Brown Black TX 6 RX 6 RX 6 RX Port 6 18 Pin Pin Pin B21 Black Blue RX 1 TX 1 TX 1 TX B22 Blue Black RX 2 TX 2 TX 2 TX B23 Black Orange TX 3 RX 3 RX 3 RX B24 Orange Black TX 6 RX 6 RX 6 RX Port 5 17 Pin Pin Pin B17 Red Brown RX 1 TX 1 TX 1 TX B18 Brown Red RX 2 TX 2 TX 2 TX B19 Red Gray TX 3 RX 3 RX 3 RX B20 Gray Red TX 6 RX 6 RX 6 RX Table A 2 Twisted Pair Wiring from a Punch Down Block...

Страница 90: ...RX B12 Blue Red TX 6 RX 6 RX 6 RX Port 2 14 Pin Pin Pin B5 White Green RX 1 TX 1 TX 1 TX B6 Green White RX 2 TX 2 TX 2 TX B7 White Brown TX 3 RX 3 RX 3 RX B8 Brown White TX 6 RX 6 RX 6 RX Port 1 13 Pin Pin Pin B1 White Blue RX 1 TX 1 TX 1 TX B2 Blue White RX 2 TX 2 TX 2 TX B3 White Orange TX 3 RX 3 RX 3 RX B4 Orange White TX 6 RX 6 RX 6 RX Table A 2 Twisted Pair Wiring from a Punch Down Block to a...

Страница 91: ...A48 TX A41 RX A42 RX A43 TX A44 TX A1 RX A2 RX A3 TX A4 TX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX PIN 1 TX PIN 2 TX PIN 3 RX PIN 6 RX 25 Pin Feeder Cable 25 Pin Feeder Cable 25 Pin Feeder Cable 4 Pair Twisted Distribution Cable 4 Pair Twisted Distribution Cab...

Страница 92: ... Page A 9 Figure A 1 Punch Down Block 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 A B C D ...

Страница 93: ... Anwendung des Geraetes geeignet und der zum Benuetzen im Lande der Anwendung anerkannt ist SPANISH El cable principal de la red eléctrica utilizado con este equipo debe tener 2 conductores y 1 toma de tierra con un mínimo de 0 75 mm2 cada uno y necesita tener un aparato de acoplamiento standard IEC en un extremo y un enchufe para el cable principal de la red eléctrica en el otro extremo lo cual s...

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