SEHI-22, SEHI-24, SEHI-32, AND SEHI-34 10BASE-T INTELLIGENT STACKABLE HUB USER’S GUIDE The Complete Networking Solution™ CABLETRON SYSTEMS, P. O.
NOTICE 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 have been made. The hardware, firmware, or software described in this manual is subject to change without notice.
NOTICE FCC NOTICE This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
NOTICE 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 program (the “Program”) contained in this package. The Program may be contained in firmware, chips or other media.
NOTICE EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY 1. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron in writing, Cabletron makes no warranty, expressed or implied, concerning the Program (including Its documentation and media).
CONTENTS TABLE OF CONTENTS APPENDIX A CHAPTER 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2.2 2.3 2.4 2.5 INTRODUCTION USING THIS MANUAL ............................................................ 1-1 GETTING HELP........................................................................ 1-2 SEHI OVERVIEW ..................................................................... 1-2 SEHI FEATURES...................................................................... 1-3 STACKABLE CAPABILITIES ..........................
CONTENTS 2.6 OPERATING SPECIFICATIONS ...........................................2-17 CHAPTER 3 3.1 3.2 3.3 UNPACKING THE SEHI ..........................................................3-1 INSTALLING THE SEHI ..........................................................3-1 3.2.1 Stacking the SEHI.........................................................3-2 3.2.2 Attaching the Strain Relief Bracket.............................3-4 3.2.3 Rack Mounting the SEHI..............................................
CONTENTS APPENDIX B TWISTED PAIR WIRING TABLES A-1 vii
INTRODUCTION 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.
INTRODUCTION 1.2 GETTING HELP If you need additional support related to the Cabletron Systems SEHI, or if you have any questions, comments, or suggestions concerning this manual, contact Cabletron Systems Technical Support: By phone .................. (603) 332-9400 Monday-Friday; 8am - 8pm EST ® By CompuServe ..... GO CTRON from any ! prompt By Internet mail ...... support@ctron.com By FTP ..................... ctron.com (134.141.197.25) Login: anonymous, Password: your email address 1.
INTRODUCTION The SEHI-22/24 and SEHI-32/34 are functionally identical with the exception of the network ports: 1.4 • SEHI-22, 12 RJ45 network ports and one EPIM port. • SEHI-24, 24 RJ45 network ports and two EPIM ports. • SEHI-32, one 50 pin Champ connector, providing 12 twisted pair segments, and one EPIM port. • SEHI-34, two 50 pin Champ connectors, providing 24 twisted pair segments, and two EPIM ports. SEHI FEATURES Repeater Functionality The SEHI fully conforms to the IEEE 802.
INTRODUCTION LANVIEW LEDs Cabletron Systems’ LANVIEW Status Monitoring and Diagnostics System is a troubleshooting tool that helps you diagnose power failures, collisions, cable faults, and link problems. The LANVIEW LEDs are conveniently located on the SEHI’s front panel. Reset Button The front panel Reset Button lets you reboot the SEHI and initialize the processor. Local Management The SEHI’s Local Management lets you manage the SEHI and all its attached segments.
INTRODUCTION 1.7 OPTIONAL FEATURES The following features are not included with the SEHI but can be purchased separately from Cabletron Systems. Ethernet Port Interface Modules (EPIMs) EPIMs let you expand your network through a variety of media. Cabletron Systems offers the EPIMs shown in Table 1-1. Table 1-1.
INTRODUCTION Daughter Board Upgrade Kit You can upgrade the SEHI-22 and the SEHI-32 to 24 ports using the daughter board upgrade kit. The Cabletron part numbers for the upgrades are: • SEHI-22: 24PORT-UGKT-E • SEHI-32: 24PORT-UGKT-E 50P Rack Mount or Wall Mount Hardware You can install 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.
INSTALLATION REQUIREMENTS/SPECIFICATIONS CHAPTER 2 INSTALLATION REQUIREMENTS/SPECIFICATIONS This Chapter describes cabling requirements, network guidelines, and operating specifications for the SEHI. Be sure to read this chapter before you install the SEHI. Your network must meet the requirements and conditions specified in this chapter to obtain satisfactory performance from this equipment. Failure to follow these guidelines could result in poor network performance. 2.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.2 UTP and STP Cable Specifications for the Network Ports and EPIM-T Module The device at the other end of the twisted pair segment must meet IEEE 802.3 10BASE-T specifications. When you connect a 10BASE-T Twisted Pair Segment to the SEHI’s 10BASE-T Twisted Pair Network Ports and EPIM-T module, your network must meet the following requirements: Length The IEEE 802.
INSTALLATION REQUIREMENTS/SPECIFICATIONS Delay The maximum propagation delay of a 10BASE-T link segment must not exceed 1000 nsec. This 1000 nsec. maximum delay limits the maximum link segment length to no greater than 200 meters. Crosstalk Crosstalk is caused by signal coupling between the different cable pairs contained within a multi-pair cable bundle. 10BASE-T transceivers are designed so that the user does not need to be concerned about cable crosstalk, provided the cable meets all other requirements.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.3 Multimode Fiber Optic Cable Specifications for the EPIM-F1 and EPIM-F2 Modules Table 2-1 shows Multimode Fiber Optic Cable specifications for the EPIM-F1 and EPIM-F2 modules. Table 2-1. Multimode Fiber Optic Cable Specifications Cable Type Attenuation Maximum Cable Length 50/125 µm 13.0 dB or less 62.5/125 µm 16.0 dB or less 100/140 µm 19.0 dB or less The maximum allowable fiber optic cable length is 2 km (2187.2 yards). However, IEEE 802.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.4 Single Mode Fiber Optic Cable Specifications for the EPIM-F3 Module Table 2-2 shows Single Mode Fiber Optic Cable specifications for the EPIM-F3. Table 2-2. Single Mode Fiber Optic Cable Specifications Cable Type Attenuation Maximum Cable Length 8/125-12/125 µm 10.0 dB or less The maximum allowable fiber optic cable length is 5 km (3.1 miles) with bridges at each segment end. However, IEEE 802.3 FOIRL specifications specify a maximum of 1 km (1093.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.5 Thin-Net Network Requirements for the EPIM-C Module When you connect a thin-net segment to the SEHI (via an EPIM-C), your network must meet the following requirements: Cable Type 50 ohm RG-58A/U type coaxial cable must be used when making up a thin-net cable segment. Length The thin-net segment must be no longer than 185 meters. Terminators A 50 ohm terminator must be connected to the far end of each thin-net segment.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.1.6 AUI Cable Requirements for the EPIM-A and EPIM-X Modules When you connect an external network segment to the SEHI (via an EPIM-A or EPIM-X), the AUI cable must meet the following requirements: AUI Cable The AUI cable connecting the module to a device must be IEEE 802.3 type cable. Length 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).
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.2.1 SEHI-22 and SEHI-24 Network Port Specifications The SEHI-22 and SEHI-24 provide RJ45 connections for network connections. Figure 2-1 shows the RJ45 pinouts. 12345678 12X 1. Receive + 2. Receive 3. Transmit + 4. Not Used 11X 10X 5. Not Used 6. Transmit 7. Not Used 8. Not Used Figure 2-1. RJ45 Network Ports 2.2.
INSTALLATION REQUIREMENTS/SPECIFICATIONS Table 2-3.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3 EPIM SPECIFICATIONS EPIMs let you connect the SEHI to the main network using different media types. Cabletron Systems offers a variety of EPIMs. The following sections explain specifications for each EPIM. 2.3.1 EPIM-T The EPIM-T is an RJ45 connector supporting UTP cabling. 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.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3.2 EPIM-F1 and EPIM-F2 The EPIM-F1 and EPIM-F2 shown in Figure 2-4 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 for the EPIMs are listed below. Figure 2-4.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3.3 EPIM-F3 The EPIM-F3 shown in Figure 2-5 supports Single Mode Fiber Optic cabling. It has an internal Cabletron Systems FOT-F™ Fiber Optic Transceiver and is equipped with ST Connectors. Specifications 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.
INSTALLATION REQUIREMENTS/SPECIFICATIONS Maximum Sensitivity (-36.0) Receive Sensitivity Typical Sensitivity (-31.0) Minimum Sensitivity (-30.0) Minimum Receive Input (-9.72) Typical Receive Input (-7.5) Maximum Receive Input Power Maximum Receive Input (-6.99) Maximum Transmit Power (-12.0) Transmitter Power* (At 25°C into 8.3/125µm fiber) Typical Transmit Power (-15.5) Minimum Transmit Power (-21.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3.4 EPIM-C The EPIM-C supports thin-net coaxial cabling and is equipped with an internal Cabletron Systems TMS-3™ Transceiver. You can 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 tee-connector and terminator. Figure 2-6 shows the setting for the terminator switch. Internal Termination Switch = On (internally terminated) = Off (need external termination) Figure 2-6.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.3.5 EPIM-A and EPIM-X (AUI Port) The EPIM-A is a DB15 female connector used to attach segments to an external transceiver. The EPIM-X is equipped 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 2 3 4 5 6 7 Logic Ref. Collision + Transmit Logic Ref.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.4 COM PORT REQUIREMENTS The RJ45 COM port supports access to a Local Management Console. The Console port supports a Digital Equipment Corporation, VT 320™ terminal or PC emulation of the VT 320™ terminal. Figure 2-8 shows the pinouts for the RJ45 COM port. 12345678 COM 1. Transmit Data 2. Data Set Ready 3. Not Used 4. Not Used 5. Signal Ground 6. Data Terminal Ready 7. Not Used 8. Not Used Figure 2-8. COM Port Pinouts 2.
INSTALLATION REQUIREMENTS/SPECIFICATIONS 2.6 OPERATING SPECIFICATIONS The operating specifications for the SEHI are described in this section. Cabletron Systems reserves the right to change these specifications at any time without notice. GENERAL Operating System Memory: 1.
INSTALLATION REQUIREMENTS/SPECIFICATIONS JAM Output: Collisions are propagated through the network using the JAM signal of an alternating pattern of 1's and 0's in accordance with 802.3 specifications for a repeater unit. Fragment Extension: Packet fragments are extended to a minimum of 96 bits using the JAM [1,0].
INSTALLATION REQUIREMENTS/SPECIFICATIONS ENVIRONMENTAL REQUIREMENTS Operating Temperature: +5° to +50° C Non-operating Temperature: -30° to +90° C Operating Humidity: 5 to 95% (non-condensing) SAFETY This unit meets the safety requirements of UL 1950, CSA C22.2 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.
INSTALLATION CHAPTER 3 INSTALLATION This chapter outlines the procedure for installing the SEHI to your network as a stackable or stand-alone device. Ensure that your network meets the guidelines and requirements outlined in Chapter 2, Installation Requirements/Specifications, before installing the SEHI. 3.1 UNPACKING THE SEHI Unpack the SEHI as follows: 1. Remove the shipping material covering the SEHI in the shipping box. 2.
INSTALLATION Free-standing and shelf installations must be within in reach of the network cabling and meet the requirements listed below: • A single phase 120Vac, 15A, grounded power receptacle must be located within 7 feet of the location. • If you use a shelving unit, it must be able to support 30 pounds of static weight for each device in the stack. • The temperature for the selected location must be maintained between 5° and 50°C, and fluctuate less than 10°C per hour.
INSTALLATION To stack the SEHI together with an SEH non-intelligent hub: 1. Attach the SEHI HubSTACK Interconnect cable to the “OUT” port on the rear panel of the SEHI as shown in Figure 3-1. 2. Attach the other end of the SEHI HubSTACK Interconnect cable to the “IN” port on the rear panel of the SEH. To stack SEH non-intelligent hubs together. 1. Attach the SEH HubSTACK Interconnect cable to the “OUT” port on the rear panel of the SEH as shown in Figure 3-1. 2.
INSTALLATION If you disconnect one end of a HubSTACK Interconnect cable and leave the other end attached to the hub, ensure that you disconnect the cable from the OUT port as shown in Figure 3-2. This ensures that the HubSTACK Interconnect cable is terminated properly. Disconnect SEH and SEHI Interconnect Cables at the "OUT" Port.
INSTALLATION 3.2.3 Rack Mounting the SEHI Refer to Figure 3-4 and perform these steps to install the SEHI in 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 cover screws removed in step 1, attach the rack mounting brackets to each end of the SEHI. Wall/Rack Mounting Brackets (2) HubSTACK 10BASE-T HUB WITH LANVIEW® SEHI-24 Screws (4) Figure 3-4. Installing the Rack Mount Brackets 3.
INSTALLATION 3.2.4 Wall Mounting the SEHI When you wall mount the SEHI, the cable connections must face down. Refer to Figure 3-6 and perform the following steps to wall mount the SEHI. Note: 1/4-inch Molly screw anchors for wall mounting are not included with the SEHI-ACCY-KIT package. 1. Use the supplied screws to attach the wall mounting brackets to the bottom of the SEHI as shown in Figure 3-6. There are two brackets, one for each side.
INSTALLATION 3. You will need a pencil for this step. With the wall mounting brackets attached to the SEHI, position the SEHI against the wall where it will be permanently mounted with the network port facing down. Use the pencil to mark the wall location for the four pilot holes. 4. Set the SEHI aside and carefully drill four 1/4" pilot holes, one for each of the Molly screw anchors and insert the four Molly screw anchors into the holes just drilled. 5.
INSTALLATION 3.3 CONNECTING THE SEHI TO THE POWER SOURCE Note: The SEHI has a universal power supply. This allows you to connect the SEHI to power sources from 90 Vac to 264 Vac, 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.
CONNECTING TO THE NETWORK CHAPTER 4 CONNECTING TO THE NETWORK This chapter outlines the procedure for connecting the SEHI to your network. Ensure that your network meets the guidelines and requirements outlined in Chapter 2, Installation Requirements/ Specifications, before installing the SEHI to your network. 4.1 CONNECTING THE SEHI TO THE NETWORK The procedure for connecting network segments to the SEHI varies depending on the media and ports being connected.
CONNECTING TO THE NETWORK To connect twisted pair segments to the SEHI: 1. Insert the RJ45 connector from each twisted pair segment into the desired network port on the SEHI. See Figure 4-1. EPIM-2 LNK EPIM-T 18X 17X 16X X 15X 14 13X LNK EPIM-T 6X 5X 4X 3X 2X 1X EPIM-1 Figure 4-1. SEHI-22/24 Network Ports 2. Check that the applicable LNK LED for the port is on. If the LED is not on, perform each of the following steps until it is: a.
CONNECTING TO THE NETWORK 4.1.2 Connecting to Network Ports, SEHI-32 and SEHI-34 The SEHI-32 has a 50-pin Champ connector, while the SEHI-34 has two 50-pin Champ connectors. This configuration of the SEHI allows you to run a 50-pin feeder cable from the SEHI to a punch down block. Each Champ connector supports 12 10BASE-T, twisted pair segments. Note: Refer to Appendix A for information about wiring the SEHI to a punch down block. To connect the SEHI into an existing twisted pair wiring system: 1.
CONNECTING TO THE NETWORK 4. Check that the link LED on the 10BASE-T Ethernet device and the applicable LNK LED on the SEHI are on. If the LEDs are not on, perform each of the following steps until the LEDs are on: a. Check that the 10BASE-T device and the SEHI have power. b. Verify the cabling between the SEHI and the 10BASE-T device. c. Check the cable for continuity. If a link has not been established, contact Cabletron Systems Technical Support. 4.1.
CONNECTING TO THE NETWORK To connect an EPIM-T to a Twisted Pair Segment: 1. Insert the RJ45 connector on the twisted pair segment into the RJ45 port on the EPIM. See Figure 4-3. 2. Check that the EPIM’s LNK LED is on. If the LED is not on, perform 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. c. Check the cable for continuity. d.
CONNECTING TO THE NETWORK • The physical communication link consists of two strands of fiber optic cabling: the Transmit (TX) and the Receive (RX). The Transmit strand from the applicable port on the module will be connected to the Receive port of a fiber optic Ethernet device at the other end of the segment. For example, TX of the applicable port on the module will go to RX of the other fiber optic device.
CONNECTING TO THE NETWORK F1/F2 ST Connectors F1/F2 SMA 906 Connectors w/ Half Alignment Sleeves SMA 905 Connectors F3 ST Connectors Figure 4-4. The EPIM-F1, EPIM-F2 and EPIM-F3 3. Attach the fiber labeled 2 to the 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.
CONNECTING TO THE NETWORK 6. Check that the EPIM’s LNK LED is on. If the LED is not on, perform the following steps until it is: a. Check that the power is turned on for the device at the other end of the link. b. Verify proper “cross-over” of fiber strands between the applicable port on the module and the fiber optic device at the other end of the fiber optic link segment. c. Verify that the fiber connection meets the dB loss specifications outlined in Chapter 2.
CONNECTING TO THE NETWORK Note: You must terminate each segment attached to the tee-connector. If you do not attach a segment to one of the female connections on the tee-connector, then a terminator must be placed on that connection. c. Attach another thin-coax segment or a terminator to the other female connector on the tee-connector. When internal termination switch is set to off ( ): Connect BNC tee-connector to port.
CONNECTING TO THE NETWORK 4.1.6 Connecting an AUI Cable to an EPIM-A Caution: Ensure that the external transceiver to which the SEHI will be connected does not have the signal quality error (SQE or “heartbeat”) PW test function enabled. The SEHI will not operate if the transceiver has R the SQE test function enabled, and the network will be unusable. Refer to theEapplicable transceiver manual. PIM-A To connect an EPIM-A to an external network segment: 1.
CONNECTING TO THE NETWORK 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 AUI connections for proper pinouts. The pinouts for the transceiver connection are listed in Chapter 2. b. Check the cable for continuity. c. Reconnect the AUI cable to the SEHI and the device.
CONNECTING TO THE NETWORK ON Position (Toward Back of EPIM) ON OFF OFF Position (Toward Front of EPIM) Figure 4-7. The EPIM-X 4.2 FINISHING THE INSTALLATION The SEHI is now ready for operation. Before placing the network into service, test the installation 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.
TROUBLESHOOTING CHAPTER 5 TROUBLESHOOTING This chapter contains instructions for using LANVIEW LEDs to troubleshoot physical layer network problems. It also describes how to reset the SEHI. 5.1 INSTALLATION CHECK-OUT After you connect the SEHI to the network, verify that packets pass between all Ethernet devices connected to the SEHI and any other devices connected to the network. If you encounter difficulty with any of the attached devices, check the link as follows: 1.
TROUBLESHOOTING 2. If the remote station is ready and the LNK LED is on, but no data passes through the port, one of two conditions may exist: • Network management has disabled the port. • The port is segmented either because the collision detector was on for more than 110 µsec. or the SEHI detected more than 32 consecutive collisions on the attached segment. The affected port remains segmented until a good packet is transmitted/ received without collisions.
TROUBLESHOOTING HubSTACK SEHI-24 10BASE-T HUB WITH LANVIEW® RCV LNK E 24 23 22 21 20 19 18 17 16 15 14 13 2 RESET COM PWR CPU CLN RCV LNK 12 11 10 9 8 7 6 5 4 3 2 1 E 1 24X 12X LED NAME LED COLOR DEFINITION PWR (Power) Off Green (Solid) No Power Power CPU (Central Processing Unit) Off Green (Flashing) Green (Blinking) Red (Solid) CPU in BOOT Process CPU Initializing CPU Functioning CPU Not Functioning CLN (Collision) Red Collision RCV (Receive) Yellow (Flashing) Off SEHI is Recei
TROUBLESHOOTING CLN This red LED indicates that a collision has occurred on one of the ports. RCV When this yellow LED flashes, it indicates that the SEHI is receiving data packets from the associated port segment. Each SEHI port has a corresponding RCV LED: • Network Ports: RCV LEDs 1-24 • EPIM-1: RCV LED E1 • EPIM-2: RCV LED E2 LNK When a green LNK LED is on, it indicates an established link between the associated twisted pair segment and the 10BASE-T device at the other end of the segment.
LOCAL MANAGEMENT CHAPTER 6 LOCAL MANAGEMENT This chapter explains how to set up a management terminal to access the SEHI’s Local Management. It also explains how to use the Local Management screens and commands. Local Management supplies the tools to manage the SEHI and all of its attached segments.
LOCAL MANAGEMENT 6.1 MANAGEMENT TERMINAL REQUIREMENTS To access Local Management you need one of the following: • 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 emulation software package. You also need a console cable to attach the management terminal to the SEHI.
LOCAL MANAGEMENT 6.1.1 Console Cable Configuration Use the RJ45 Cable Kit provided with the SEHI-ACCY-KIT package to attach the management terminal to the SEHI’s COM port 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.
LOCAL MANAGEMENT 6.1.2 Management Terminal Setup Parameters Table 6-1 lists the setup parameters for the local management terminal. If your terminal is a Digital Equipment Corporation VT320™ terminal, press F3 to access the Setup Directory. If you have a terminal emulation of the VT320™, refer to your equipment user manual for setup procedures. Table 6-1.
LOCAL MANAGEMENT 6.2 ACCESSING LOCAL MANAGEMENT After you configure the local management terminal and properly attach the cables to the SEHI, you can access the Local Management interface. To access Local Management: 1. Power up the terminal. The SEHI Password screen shown in Figure 6-2 appears. SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X.XX.XX Cabletron Systems Incorporated 35 Industrial Way, P.O. Box 5005 Rochester, NH 03867-0505 U.S.A. (603) 332-9400 (c) Copyright Cabletron Systems, Inc.
LOCAL MANAGEMENT 3. Press the Return key. • If your password entry is invalid, the cursor returns to the beginning of the password entry field. • If your password is valid, the associated access privilege appears briefly, then the SEHI Local Management Feature Selection 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. SEHI LOCAL MANAGEMENT Cabletron Systems Incorporated P.
LOCAL MANAGEMENT 6.3 USING THE LOCAL MANAGEMENT SCREENS The Feature Selection screen is the main menu screen for SEHI Local Management. You can select five screen options in the Feature Selection screen: Community Name Table, IP Address Assignment, Component Trap Table, SNMP Tool Support, and Device Statistics. Use the arrow keys to highlight an option, then press Return (or press the corresponding Function Key). The selected screen appears.
LOCAL MANAGEMENT The Community Name Table option lets you set community names. Community names are passwords to Local Management and they are agents of security control to your SEHI. You control SEHI access by establishing up to four different levels of security authorization: Basic-Read, Read-Only, Read-Write, and Super-User. If you have Super-User access, you can change the existing passwords by changing the community names.
LOCAL MANAGEMENT Editing the Community Name Field The password that you use to access Local Management at the Password screen must have Super-User privileges for your edits to take effect. If you enter a password with Basic-Read, Read-Only, or Read-Write privileges, Local Management displays the message “AUTHORIZATION PROHIBITS ACCESS”, and does not include editing capabilities. To edit the Community Name field: 1.
LOCAL MANAGEMENT 6.3.2 The Configuration Screen To access the Configuration screen from the Feature Selection screen, use the arrow keys to highlight the IP Address Assignment option then press the Return key or F7. The Configuration screen shown in Figure 6-5 appears. SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X.XX.XX CONFIGURATION I/F IP Address 1 000.000.000.000 SubNET Mask MAC Address 000.000.000.000 00-00-1d-05-dc-36 Default Gateway: 0.0.0.
LOCAL MANAGEMENT SubNet Mask Displays the subnet mask for the SEHI. A subnet mask is a 32-bit quantity which “masks out” the network bits of the IP address. This is done by setting the bits in the mask to 1 when the network treats the corresponding bits in the IP address as part of the network or subnetwork address, or to 0 if the corresponding bit identifies the host. MAC Address Displays the physical address associated with the interface. Default Gateway Displays the default gateway for the SEHI.
LOCAL MANAGEMENT 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. Please note that the first time you try to exit the screen without saving your changes, you will get a “NOT SAVED?” message. If you proceed to exit without saving, you will lose your edits. Setting the Subnet Mask Note: Consult your Network Administrator prior to setting the Subnet Mask.
LOCAL MANAGEMENT Setting the Default Gateway The Default Gateway field allows you to describe the router through which the SEHI will be forwarding IP packets. To set the Default Gateway: 1. Use the arrow keys to highlight the Default Gateway field. 2. Enter the gateway’s default mask in this field. The format for this entry is XXX.XXX.XXX.XXX with values for XXX being from 0 to 255. 3. Press the Return key. If your entry is accepted as a valid default gateway, “OK” appears to the right of the field. 4.
LOCAL MANAGEMENT Exiting the Configuration Screen 1. To exit the Configuration screen, press the appropriate Function key. To return to the Feature Selection screen, use the arrow keys to highlight the RETURN command. 2. Press the Return key. The Feature Selection screen appears. 6.3.3 The Trap Table Screen To access the Trap Table screen from the Features Selection screen, use the arrow keys to highlight the Component Trap Table option, then press the Return key or F8.
LOCAL MANAGEMENT SNMP Community Name Displays the community name to be included in the trap message, which is sent to the Network Management Station with the associated IP address. Traps Enables transmission of the traps to the network management station with the associated IP address. Trap IP Address Indicates the IP address of the workstation to receive trap alarms from the SEHI. Configuring the Trap Table 1. Use the arrow keys to highlight the SNMP Community Name field, then enter the community name. 2.
LOCAL MANAGEMENT Exiting the Trap Table Screen 1. To exit the Trap Table screen, press the appropriate Function key. To exit to the Feature Selection screen, use the arrow keys to highlight the RETURN command. 2. Press the Return key. The Feature Selection screen appears. 6.3.4 The SNMP Tools Screen This section describes how you can use the SNMP Tools screen to access Management Information Bases (MIBs). Access to screen options depends on the access status accorded to your community name.
LOCAL MANAGEMENT SEHI LOCAL MANAGEMENT Cabletron SEHI Revision X.XX.XX SNMP TOOLS SNMP COMMUNITY NAME: public OID PREPEND: 1.3.6.1 GET SET F6 F7 GETNEXT F8 WALK RECALL-OID STEP CYCLES REPEAT F9 RETURN F10 Figure 6-7. SNMP Tools Screen The following sections describe SNMP Tools screen fields and instructions on how to change them. Community Name Identifies the community name used as a password to determine access level to the MIB component.
LOCAL MANAGEMENT Walk Scrolls you through a section of the MIB leaf by leaf, from a user-specified object identifier. Leaves are the sections of the OID separated by periods. When a walk is initialized you will see the following categories for each walk entry, or step. Specified OID - gives the number tag for that OID. Size - 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.
LOCAL MANAGEMENT Getting Individual OIDs To get an OID: 1. Highlight GET, using the arrow keys, then press the Return key (or press the F6 function key). “ OID (=|F9)” appears. 2. Enter the OID either by: • using the keyboard to enter the OID minus the OID’s prepend (e.g., if the prepend is 1.3.6.1, and you enter 4.1.3, then the OID=1.3.6.1.4.1.3). • entering an ‘=’ and the OID suffix (e.g., if you enter =4.1.3, then the OID=4.1.3). This allows you to digress and not use the prepend.
LOCAL MANAGEMENT Setting an OID To set an OID: 1. Highlight SET, using the arrow keys, then press the Return key (or press the F7 function key). “ OID (=|F9)” appears. 2. Enter the OID, minus the OID’s prepend. If you have previously entered an OID, pressing F9 recalls that entry for you. You can then use the arrow keys to modify the recalled OID if necessary. 3. Press the Return key. If there is no instance of that OID, the return code will specify “MIB_NO_INSTANCE”, otherwise “DATA TYPE:” appears. 4.
LOCAL MANAGEMENT Walking Through OIDs To walk through an OID: 1. Highlight Walk, using the arrow keys, then press the Return key. “ OID (=|F9)” appears. 2. Enter the OID (minus the prepend) and press the Return key. The screen will begin walking through the sublayers of the MIB available from the specified OID. Each OID listed displays the specified OID, its size, its type, and the data it contains. 3.
LOCAL MANAGEMENT Exiting the SNMP Tools Screen 1. Use the arrow keys to highlight the RETURN command. 2. Press the Return key. The Feature Selection screen appears. 6.3.5 The Device Statistics Screen This section describes the features of the Device Statistics screen. You can view error, collision, and traffic statistics for the stack, a selected module, or a selected port. You can also enable and disable ports.
LOCAL MANAGEMENT Bytes Received Displays the number of bytes received. Frames Received Displays the number of frames received. Errors Received Displays the number of errors received. Collisions Displays the number of collisions received. OOW Collisions Displays the number of Out Of Window collisions. OOW collisions are usually caused by the network being too long where the round trip propagation delay is greater than 51.
LOCAL MANAGEMENT Port Seg. Status Displays the segmentation status of the port selected. The two possible status messages are Segmented or Unsegmented. The SEHI and SEH automatically partition problem segments, and reconnect non-problem segments to the network. Enable Port This command lets you enable the selected port. Disable Port This command lets you Disable the selected port. Update-Freq This command lets you select the time interval between Stack/Module/ Port counter updates.
LOCAL MANAGEMENT Selecting the Appropriate Module/Port When the Device Statistics screen first appears, statistics are displayed for Module 1 and Port 1. To view statistics for another module and port, use the Module x or Port x commands at the bottom of the screen. To select a module or port: 1. Use the arrow keys to highlight the Module or Port command. 2. Press the shift and + keys, or the - key until the desired module or port number appears. 3. Press the Return key.
LOCAL MANAGEMENT Using the Disable Port Command The Disable Port command lets you Disable the port selected in the Port command. You must first use the Port command to select the desired port. To set the Port 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.
TWISTED PAIR WIRING TABLES APPENDIX A TWISTED PAIR WIRING TABLES This appendix contains twisted pair wiring tables which will assist you if you are using a Punch Down Block (see Figure A-1) to wire your twisted pair segments.
TWISTED PAIR WIRING TABLES Note: Pins 25 and 50 on Champ connector are not used. Table A-1.
TWISTED PAIR WIRING TABLES Table A-1.
TWISTED PAIR WIRING TABLES Table A-1.
TWISTED PAIR WIRING TABLES Table A-2.
TWISTED PAIR WIRING TABLES Table A-2.
TWISTED PAIR WIRING TABLES Table A-2.
TWISTED PAIR WIRING TABLES Table A-3.
TWISTED PAIR WIRING TABLES A B C D 1 2 3 4 5 6 7 8 9 10 11 12 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 49 50 Figure A-1.
POWER SUPPLY 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 application. GERMAN: Die Netzleitung, die mit diesem Geraet benuetzt wird, soll einen zwei Leiter mit Erdleiter haben, wobei die Leiter mindestens 0.
