Page 2 - Printed On
NOTICE 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 have been made. The hardware, firmware, or soft...
Page 3 - NOTICE; ii; FCC NOTICE
NOTICE ii 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. NOT...
Page 4 - iii; PROGRAM LICENSE AGREEMENT; You have the right to use only the one (1) copy of the Program provided
NOTICE 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...
Page 5 - iv; EXCLUSION OF WARRANTY; EXCLUSION OF WARRANTY.; UNITED STATES GOVERNMENT
NOTICE iv 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). CABLETRON DISCLAIMS ALL WARRANTIES,...
Page 6 - TABLE OF CONTENTS; ule
CONTENTS v TABLE OF CONTENTS APPENDIX A TABLE OF CONTENTS v CHAPTER 1 INTRODUCTION 1.1 USING THIS MANUAL ............................................................ 1-1 1.2 GETTING HELP ........................................................................ 1-2 1.3 SEHI OVERVIEW .....................
Page 7 - Connecting a Fiber Optic Link Segment to an EPIM-F1,
CONTENTS vi 2.6 OPERATING SPECIFICATIONS ...........................................2-17 CHAPTER 3 INSTALLATION 3.1 UNPACKING THE SEHI ..........................................................3-1 3.2 INSTALLING THE SEHI ..........................................................3-13.2.1 Stacking the...
Page 8 - CONTENTS; vii; APPENDIX B
CONTENTS vii APPENDIX B TWISTED PAIR WIRING TABLES A-1
Page 9 - Note
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 SE...
Page 10 - By CompuServe; SEHI OVERVIEW
INTRODUCTION Page 1-2 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...
Page 11 - INTRODUCTION; , 12 RJ45 network ports and one EPIM port.; SEHI FEATURES
INTRODUCTION Page 1-3 The SEHI-22/24 and SEHI-32/34 are functionally identical with the exception of the network ports: • 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 segment...
Page 14 - Use the Cabletron Systems; Guide; to supplement the procedures and other technical data
INTRODUCTION Page 1-6 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...
Page 15 - INSTALLATION REQUIREMENTS/SPECIFICATIONS; CHAPTER 2; CABLE SPECIFICATIONS
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-1 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 requir...
Page 18 - sec, if the total propagation; Cable Type
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-4 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. AttenuationYou must test the fiber optic cable with a fiber optic att...
Page 24 - side, the pairs are internally
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-10 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 conn...
Page 26 - Note: Transmitter Power decreases as temperatures rise and
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-12 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...
Page 27 - Spectral Width
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-13 Parameter Typical Minimum Maximum Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm Spectral Width 60 nm - 100 nm Rise Time/ 3.0 nsec 2.7 nsec 5.0 nsec Fall Time 2.5 nsec 2.2 nsec 5.0 nsec Duty Cycle 50.1% 49.6% 50.7% Bit Error Rate: Better than ...
Page 30 - COM
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-16 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...
Page 33 - Operating Temperature:; SAFETY
INSTALLATION REQUIREMENTS/SPECIFICATIONS Page 2-19 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 C22.2No. 950, and EN 60950; th...
Page 34 - INSTALLATION; CHAPTER 3; UNPACKING THE SEHI; Unpack the SEHI as follows:; INSTALLING THE SEHI
INSTALLATION Page 3-1 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 instal...
Page 36 - To stack the SEHI together with an SEH non-intelligent hub:
INSTALLATION Page 3-3 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 ...
Page 37 - Figure 3-2. Disconnecting the HubSTACK Interconnect Cable; Attaching the Strain Relief Bracket
INSTALLATION Page 3-4 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. Figure 3-2. Disconnec...
Page 38 - Figure 3-4. Installing the Rack Mount Brackets
INSTALLATION Page 3-5 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 ...
Page 41 - To connect the SEHI to the power source:
INSTALLATION Page 3-8 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. Pl...
Page 42 - CONNECTING TO THE NETWORK; CHAPTER 4; CONNECTING THE SEHI TO THE NETWORK
CONNECTING TO THE NETWORK Page 4-1 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 SE...
Page 43 - To connect twisted pair segments to the SEHI:
CONNECTING TO THE NETWORK Page 4-2 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. Figure 4-1. SEHI-22/24 Network Ports 2. Check that the applicable LNK LED for the port is on. If the...
Page 44 - To connect the SEHI into an existing twisted pair wiring system:
CONNECTING TO THE NETWORK Page 4-3 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 Cham...
Page 45 - Check that the 10BASE-T device and the SEHI have power.; Connecting a UTP Segment to an EPIM-T
CONNECTING TO THE NETWORK Page 4-4 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 cab...
Page 46 - To connect an EPIM-T to a Twisted Pair Segment:
CONNECTING TO THE NETWORK Page 4-5 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...
Page 47 - Caution: Do not touch the ends of the fiber optic strands, and
CONNECTING TO THE NETWORK Page 4-6 • 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 ...
Page 48 - Attach the fiber labeled 2 to the receive port.; SMA 906 Connectors w/
CONNECTING TO THE NETWORK Page 4-7 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 la...
Page 49 - If the Internal Termination switch is in the Off position:
CONNECTING TO THE NETWORK Page 4-8 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 th...
Page 51 - To connect an EPIM-A to an external network segment:; P W
CONNECTING TO THE NETWORK Page 4-10 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”) test function enabled. The SEHI will not operate if the transceiver has the SQE...
Page 52 - Check the cable for continuity.; Connecting an AUI Cable to an EPIM-X; To connect an EPIM-X to a device not requiring SQE:
CONNECTING TO THE NETWORK Page 4-11 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 pino...
Page 54 - TROUBLESHOOTING; CHAPTER 5; INSTALLATION CHECK-OUT
TROUBLESHOOTING Page 5-1 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 betwee...
Page 55 - Network management has disabled the port.; USING LANVIEW
TROUBLESHOOTING Page 5-2 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 µ sec. or the SEH...
Page 56 - Note: “Flashing” indicates an irregular LED pulse.; “Blinking” indicates a steady LED pulse.; LED NAME; Red; DEFINITION; Collision
TROUBLESHOOTING Page 5-3 Figure 5-1. LANVIEW LEDs PWR When this green LED is on it indicates that the SEHI is receiving power. If this LED is not on, it indicates a loss of input power. Check the input power source (circuit breaker, fuse, etc.). If the proper source power is present, the problem cou...
Page 58 - LOCAL MANAGEMENT; CHAPTER 6; assign an IP address and subnet mask
LOCAL MANAGEMENT Page 6-1 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 ...
Page 59 - To access Local Management you need one of the following:
LOCAL MANAGEMENT Page 6-2 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 runn...
Page 60 - Connect the console cable to the SEHI as follows:
LOCAL MANAGEMENT Page 6-3 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 p...
Page 62 - To access Local Management:
LOCAL MANAGEMENT Page 6-5 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 app...
Page 65 - This allows read only access to Local
LOCAL MANAGEMENT Page 6-8 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, R...
Page 66 - To edit the Community Name field:; Press the Return key.; Repeat steps 1-3 for editing any of the other community names.; Press the Return key. The Feature Selection screen appears.
LOCAL MANAGEMENT Page 6-9 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 display...
Page 68 - To set the IP Address:; Use the arrow keys to highlight the IP Address field.
LOCAL MANAGEMENT Page 6-11 SubNet MaskDisplays 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 netw...
Page 69 - To set the subnet mask:; Use the arrow keys to highlight the SubNET Mask field.
LOCAL MANAGEMENT Page 6-12 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...
Page 70 - To set the Default Gateway:; Use the arrow keys to highlight the Default Gateway field.; To set the Port ENABLE Override:
LOCAL MANAGEMENT Page 6-13 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 th...
Page 75 - Specified OID - gives the number tag for that OID.
LOCAL MANAGEMENT Page 6-18 WalkScrolls 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...
Page 76 - Enter the OID either by:; Getting the Next OID
LOCAL MANAGEMENT Page 6-19 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). “<GET> OID (=|F9)” appears. 2. Enter the OID either by: • using the keyboard to enter the OID minus the OID’s prepend (e.g., if th...
Page 78 - To walk through an OID:; Stepping Through OIDs; To step through an OID (you can step through only after a GetNext):; Cycling Through OIDs; To cycle through an OID:; Use the arrow keys to Highlight CYCLES, then press Return.
LOCAL MANAGEMENT Page 6-21 Walking Through OIDs To walk through an OID: 1. Highlight Walk, using the arrow keys, then press the Return key. “<INITIAL> 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 ...
Page 79 - Use the arrow keys to highlight the RETURN command.
LOCAL MANAGEMENT Page 6-22 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, c...
Page 80 - sec (the collision domain is
LOCAL MANAGEMENT Page 6-23 Bytes ReceivedDisplays the number of bytes received. Frames ReceivedDisplays the number of frames received. Errors ReceivedDisplays the number of errors received. CollisionsDisplays the number of collisions received. OOW CollisionsDisplays the number of Out Of Window colli...
Page 82 - To select a module or port:; Using the Enable Port Command; To set the Port Enable command:
LOCAL MANAGEMENT Page 6-25 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 p...
Page 83 - To set the Port Disable command:; Exiting the Device Statistics Screen; To exit the Device Statistics screen:
LOCAL MANAGEMENT Page 6-26 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 t...
Page 84 - TWISTED PAIR WIRING TABLES; APPENDIX A; Twisted Pair Wiring from a Punch Down Block to a
TWISTED PAIR WIRING TABLES Page A-1 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. The following tables are included in this appendix: • Table A-1 T...
Page 85 - Note: Pins 25 and 50 on Champ connector are not used.
Page A-2 TWISTED PAIR WIRING TABLES Note: Pins 25 and 50 on Champ connector are not used. Table A-1. Twisted Pair Wiring from an SEHI-32/34 to a Punch Down Block FromSEHI-32/34 Into and Out of 50 Pin Feeder Cable Into Punch Down Block Port 12/24 Pin Pin Pin RX+ 48 48 Violet/Green RX+ A45 Violet/Gree...
Page 88 - from a Punch Down Block to a 10Base-T Device
TWISTED PAIR WIRING TABLES Page A-5 Table A-2. Twisted Pair Wiring from a Punch Down Block to a 10Base-T Device From Punch Down Block To RJ-45 Wallplate Into Office Drop Into 10BASE-T Device Port 12/24 Pin Pin Pin B45 Violet/Green RX+ 1 TX+ 1 TX+ 1 TX+ B46 Green/Violet RX- 2 TX- 2 TX- 2 TX- B47 Viol...
Page 92 - A B C D
TWISTED PAIR WIRING TABLES Page A-9 Figure A-1. Punch Down Block 1234567891 01 11 21 31 41 51 61 71 81 92 02 12 22 32 42 52 62 72 82 93 03 13 23 33 43 53 63 73 83 94 04 14 24 34 44 54 64 74 84 95 0 A B C D
Page 93 - POWER SUPPLY CORD
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 ...
