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Cabletron Systems ETWMIM User Manual

Ethernet / token ring / wan media interface module
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ETWMIM
ETHERNET / TOKEN RING / WAN
MEDIA INTERFACE MODULE
USER'S GUIDE
CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03867-0505

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  • Page 1 ETWMIM ETHERNET / TOKEN RING / WAN MEDIA INTERFACE MODULE USER’S GUIDE CABLETRON SYSTEMS, P. O. Box 5005, Rochester, NH 03867-0505...
  • Page 2 All Rights Reserved Printed in the United States of America Order Number: 9030661-01 August, 1994 ETWMIM, MMAC, T1-SRM, EPIM-T, EPIM-X, EPIM-F1/F2, EPIM-F3, EPIM-C, TPT-T, FOT-F, FOT-F3, and Flexible Network Bus are trademarks of Cabletron Systems, Inc. Spectrum, and LANVIEW are registered trademarks of Cabletron Systems, Inc.
  • Page 3 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.
  • Page 4 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.
  • Page 5 NOTICE UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227- 19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.

  • Page 6: Table Of Contents

    CHAPTER 1 INTRODUCTION USING THIS MANUAL ... 1-1 GETTING HELP... 1-2 OVERVIEW... 1-2 ETWMIM FEATURES ... 1-2 BRIDGING AND THE ETWMIM ... 1-5 1.5.1 Remote Bridging ... 1-6 1.5.2 Transparent Bridging ... 1-6 1.5.3 Source Route Bridging ... 1-7 1.5.4 CSMA/CD To Token Ring Translation ...
  • Page 7 Configuration Screen Fields ...5-7 5.4.3 Setting the IP Address Table and Subnet Mask Field 5-8 SETTING THE TRAP TABLE...5-9 5.5.1 ETWMIM Trap Table Screen ...5-9 5.5.2 Trap Table Screen Fields ...5-10 5.5.3 Configuring the Trap Table ...5-10 SNMP TOOLS ...5-11 5.6.1...
  • Page 8 WAN INTERFACE CONFIGURATION SCREEN ... 5-24 5.8.1 WAN Interface Configuration Screen Fields ... 5-25 5.8.2 Configuring PPP Interfaces ... 5-27 5.8.3 Configuring Frame Relay Interfaces ... 5-28 5.8.4 Setting the Data Compression Field ... 5-29 5.8.5 Setting the Max Xmit Unit Field ... 5-30 5.8.6 Setting the Line Coding Field ...
  • Page 9 CONTENTS APPENDIX B DOWNLOADING AN IMAGE FILE GETTING STARTED ... B-2 SETTING UP A UNIX WORKSTATION AS A RARP SERVER... B-3 STANDARD LOCAL DOWNLOAD... B-5 REMOTE RUNTIME DOWNLOAD... B-6 APPENDIX C FCC PART 68 - USER’S INFORMATION INDEX viii...

  • Page 10: Chapter 1 Introduction

    ETWMIM and to explain its capabilities and features. You should read through this manual to gain a full understanding of the ETWMIM and its capabilities. We assume that you have a general working knowledge of Ethernet (IEEE 802.3), Token Ring (IEEE 802.5), and WAN type data communications networks and their...

  • Page 11: Getting Help

    T1-SRM module for the ETWMIM. The T1-SRM provides an RJ-48C interface to provide wide area network connectivity. The ETWMIM can bridge for up to 26 ports at one time — 2 local networks (1 Ethernet and 1 Token Ring), and up to 24 WAN timeslots using the optional T1-SRM.
  • Page 12 Hot Swapping Like all Cabletron Systems Media Interface Modules (MIMs), you can remove the ETWMIM from, and insert it into, an MMAC without turning off the power to the rest of the modules in the hub. Flash EEPROMs The ETWMIM uses Flash Electrically Erasable Programmable Read Only Memory (EEPROM) that allows you to download new and updated firmware using Remote LANVIEW/Windows, version 2.3 or...
  • Page 13 Token Ring access through the Flexible Network Bus (FNB). Wide Area Network Connectivity The ETWMIM allows for Wide Area Network (WAN) connection in one of two ways — the SYNC serial port or the optional T1-SRM module. The SYNChronous port provides connection to external WAN equipment (e.g., a T1 multiplexer or DDS CSU/DSU).

  • Page 14: Bridging And The Etwmim

    • what port/channel to use if it must forward the frames. In the process of bridging traffic, the ETWMIM may have to translate frames from one transmission type to another (e.g., Ethernet - Token Ring, Token Ring - Ethernet), or encapsulate the frames for timed/ synchronous transmission (e.g., WAN PPP frame encapsulation).

  • Page 15: Remote Bridging

    The ETWMIM uses Point to Point Protocol (PPP) or Frame Relay Protocol to communicate across a Wide Area link. When transmitting with PPP or Frame Relay, the ETWMIM uses High level Data Link Control (HDLC) as a basis for encapsulating MAC frames. When...

  • Page 16: Source Route Bridging

    field (protocol) • 64 bytes of the data field (using a data offset). For example, using this process, you can ensure that the ETWMIM always filters or forwards packets with a specific protocol or address. 1.5.3 Source Route Bridging Source Route Bridging, currently used in Token Ring and WAN networks, operates by transmitting frames over a designated route.

  • Page 17: Csma/Cd To Token Ring Translation

    INTRODUCTION 1.5.4 CSMA/CD To Token Ring Translation When using the ETWMIM, source and destination networks may often differ in MAC types (e.g., Ethernet - Token Ring, Token Ring - Ethernet). To bridge traffic between these different MAC types, translation bridging is necessary.

  • Page 18: Chapter 2 Installation Requirements/Specifications

    See Appendix A, EPIM Specifications, for information concerning the optional Ethernet Port Interface Modules. 2.1 MMAC REQUIREMENTS The ETWMIM should be installed in an MMAC equipped with a Flexible Network Bus (either an MMAC-3FNB, MMAC-5FNB or an MMAC-8FNB). Note: The FNB is a full-height, full-width backplane that links Cabletron Systems FDDI or Token Ring products.

  • Page 19: Com 2 Port And Terminal Requirements

    VT300™ series terminal (or emulation of one of these terminals). This section lists the specifications for the front panel COM 2 port and the necessary terminal requirements to access ETWMIM Local Management. An RJ-45 connector provides the interface to a management terminal.
  • Page 20 RECEIVE TRANSMIT SIGNAL GROUND DATA SET READY DATA TERMINAL READY CONSOLE PORT RJ-45 TRANSMIT RECEIVE SIGNAL GROUND DATA SET READY DATA TERMINAL READY Figure 2-1. Console Cable Pinouts You must properly configure your terminal to communicate with Local Management. Table 2-2 lists the setup requirements for the local management console.
  • Page 21 REQUIREMENT/SPECIFICATIONS Table 2-2. Terminal Setup Requirements Menu Display Setup: General Setup: Communications Setup: Keyboard Setup: Page 2-4 Function Columns Controls Auto Wrap Text Cursor Mode Cursor Keys Transmit Receive X=64 Bits, Parity Stop Bit Local Echo Port Transmit Auto Answerback Auto Repeat Keyclick Margin Bell...

  • Page 22: Operating Specifications

    2.3 OPERATING SPECIFICATIONS Microprocessor: Network Interfaces: Ethernet: Token Ring: WAN: Bridging: CPU Memory: Buffer Memory: 2.3.1 Environmental Requirements Operating Temperature: Non-Operating Temperature: -30 to +40 C Operating Humidity: REQUIREMENT/SPECIFICATIONS Intel RISC 80960 CF @24 MHz Standard IEEE 802.3 National Semiconductor DP83932 SONIC Standard IEEE 802.5 AT&T T7115...

  • Page 23: Safety

    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 ETWMIM will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions.

  • Page 24: Chapter 3 Installing The Etwmim

    1) Carefully remove the ETWMIM from the shipping box. 2.) Remove the ETWMIM from the protective plastic bag. Note: If you must set the ETWMIM down for any reason, place it back inside the protective bag. This will help prevent ESD damage.

  • Page 25: Setting The Configuration Switches

    INSTALLING THE ETWMIM 3.2 SETTING THE CONFIGURATION SWITCHES The ETWMIM has two configuration switches — a switch bank, and an Ethernet connection slide switch. You must set these switches before installing the ETWMIM. Figure 3-1 illustrates the location of these items on the ETWMIM board.

  • Page 26: Setting The Switch Bank (Sw2)

    3.2.1 Setting the Switch Bank (SW2) Switch Bank SW2 controls various functions in the ETWMIM. Table 3-1 lists these functions and possible switch settings. Table 3-1. ETWMIM Switch Bank Settings Switch Function Clear NVRAM bootp download Ctron Use Only Token Ring...

  • Page 27: Ethernet Connection Switch (Sw4)

    INSTALLING THE ETWMIM 3.2.2 Ethernet Connection Switch (SW4) Ethernet can connect to the ETWMIM in one of two ways — through a front panel EPIM connection or through the backplane. If you want a front panel EPIM connection, slide switch SW4 toward the front of the unit.

  • Page 28: Installing An Epim

    3. Holding the ETWMIM by the front panel or by the edges of the circuit board, align the bottom and top edges of the card with the slot guides in the MMAC chassis. Be sure that both the bottom and top edges of the card rest in the guide slots.

  • Page 29: Installing The T1-Srm

    T1-SRM at a later date. 3. Remove the T1-SRM from its protective package. 4. Attach the T1-SRM such that the holes on the ends of the device slide over the bolts on the back of the ETWMIM faceplate. (See Figure 3-4.) Page 3-6...
  • Page 30 ETWMIM mother board. Caution: Make sure pins set properly in connector holes. Improper connection can damage both the T1-SRM and the ETWMIM. 6. Press down on the back of the T1-SRM until the pins slide all the way into the connector holes to ensure proper contact.

  • Page 31: Configuring The Lbo Switch

    INSTALLING THE ETWMIM 3.6 CONFIGURING THE LBO SWITCH The T1-SRM provides a Line Build Out (LBO) switch. The LBO switch on the front of the T1-SRM is used to match the loss of the end-section of the service provider’s (i.e. AT&T, Sprint, MCI, NYNEX, etc.) circuit.

  • Page 32: Connecting To Local Management

    3.7 CONNECTING TO LOCAL MANAGEMENT Access Local Management by attaching a management console to the RJ-45 COM 2 port of the ETWMIM (see Figure 3-5). The console connection supports a Digital Equipment Corporation VT200 or 300 series terminal or PC emulation of one of these terminals.

  • Page 33: Chapter 4 Using Lanview

    The ETWMIM uses Cabletron’s built-in visual diagnostic and status monitoring system called LANVIEW. With LANVIEW, network troubleshooting personnel can quickly scan LEDs to observe network status, or diagnose network problems. Figure 4-1 displays the LANVIEW LEDs on the ETWMIM. Ethernet...

  • Page 34: System Status Leds

    USING LANVIEW 4.1 SYSTEM STATUS LEDs BOK (Board OK) • Flashing (three times/second) - Indicates that the module is running a self-test. This LED flashes three times/second during the self-test, and then adjusts to the normal one time/second rate. • Flashing (one time/second) - Indicates that the module has successfully completed its self-test and is ready for normal operation.
  • Page 35 RCV (Receive) • Flashing - Indicate the ETWMIM is receiving a data packet through the Ethernet port. The flash is pulse-stretched for viewing effect. • Off - Indicates the ETWMIM is not receiving data packets. XMT (Transmit) • Flashing - Indicates a data packet is being transmitted through the Ethernet port.

  • Page 36: Token Ring Status Leds

    USING LANVIEW 4.3 TOKEN RING STATUS LEDs STBY (Standby) Standby is an inactive state where the module is not passing data on the ring. Standby is set/reset via in-band network management. • On - Indicates that the module is in Standby mode. •...

  • Page 37: T1-Srm Port Status Leds

    On - Indicates that the T1-SRM is in test mode. This LED may indicate internal or external loop testing. For example, the LED lights when the service provider loops up the ETWMIM or the ETWMIM loops back (as with power up diagnostics).

  • Page 38: Synchronous Port Status Leds

    USING LANVIEW 4.5 SYNCHRONOUS PORT STATUS LEDs SYNC (Synchronous): • On - Indicates that the SYNC port is active. • Off - Indicates that the T1/SRM port is active. STBY (Standby): • On - All WAN bridge ports are in the non-forwarding state. Possible causes of this condition are: redundancy detected by Spanning Tree, data link layer down, physical layer down, port disabled, problem in telephone circuit, or improper...
  • Page 39 RTS (Request to Send) • On - Indicates the ETWMIM is ready to send data to the DCE. • Off - Indicates the ETWMIM is not ready to send data to the DCE. DSR (Data Set Ready) • On - Indicates that the DCE is ready to operate, or that the Force DSR True field (refer to the WAN Physical Configuration...

  • Page 40: Chapter 5 Local Management

    LOCAL MANAGEMENT Cabletron Systems ETWMIM Local Management provides unique management and control capabilities for Cabletron Systems ETWMIM. Local Management supplies the tools to manage the ETWMIM and all of its attached segments. You can: • assign an IP address and subnet mask •...

  • Page 41: Accessing Local Management

    After ensuring proper terminal configuration, and correct physical cable connections, you can access ETWMIM Local Management. To access Local Management: 1. Turn the terminal on. The ETWMIM Password screen, Figure 5-1, appears. (c) Copyright CABLETRON Systems Inc. 1994 Figure 5-1. ETWMIM Password Screen 2.

  • Page 42: Community Name Table

    Community names serve two purposes — they act as passwords to Local Management, and as agents of security control to your ETWMIM. You control ETWMIM access by establishing up to four different levels of security authorization (BASIC-READ, READ-ONLY, READ-WRITE, and SUPER-USER).

  • Page 43: Accessing The Community Name Table Screen

    The following briefly explains each field on the Community Name Table screen. Community Name Displays the user-defined name through which a user can access Local Management for the ETWMIM. Any community name assigned here acts as a password to Local Management. Page 5-4 ETWMIM LOCAL MANAGEMENT Cabletron ETWMIM Revision 00.00.00...

  • Page 44: Editing The Community Name Table Screen

    Local Management. LOCAL MANAGEMENT This status provides limited read-only access to the ETWMIM. This does not include access to security protected fields of upper levels (read-only, read-write, or super-user). This status allows for extended read-only...

  • Page 45: Configuring The Etwmim

    RETURN and pressing the Return key. The latter exits you to the Feature Selection screen. 5.4 CONFIGURING THE ETWMIM The ETWMIM Configuration screen allows you to assign IP Addresses and Subnet Masks. The Configuration screen also allows you to set the Default Gateway.

  • Page 46: Accessing The Configuration Screen

    Displays the IP Address of the Ethernet and Token ring ports. SubNET Mask Displays the SubNET Mask for the ETWMIM. 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 0 if the bit identifies the host.

  • Page 47: Setting The Ip Address Table And Subnet Mask Field

    COM 2 Application Displays the port’s application setting as CONSOLE. Baud Rate Displays the Baud Rate setting of the device attached to the ETWMIM through that serial port. The setting for COM 2 is 9600. A flashing -ACTIVE- appears after the 9600 5.4.3 Setting the IP Address Table and Subnet Mask Field...

  • Page 48: Setting The Trap Table

    5.5 SETTING THE TRAP TABLE As an SNMP compliant device, the ETWMIM can authenticate an SNMP request. The Trap Table defines the management stations that will receive SNMP Traps for alarm/event notification.

  • Page 49: Trap Table Screen Fields

    2. Press the Return key. 3. Using the arrow keys, highlight the Traps field and enter Y (or y) to send alarms from the ETWMIM to the workstation, and N (or n) to prevent alarms from being sent. 4. Press the Return key.

  • Page 50: Snmp Tools

    Return key. The latter will exit you to the Feature Selection screen. Alarms for these traps will now be sent to the designated IP addresses from the ETWMIM. 5.6 SNMP TOOLS This section describes specific commands and features within the SNMP Tools screen.

  • Page 51: Snmp Tools Screen Fields

    LOCAL MANAGEMENT ETWMIM LOCAL MANAGEMENT Cabletron ESXMIM Revision 0.00.00 SNMP TOOLS COMMUNITY NAME: public OID PREPEND: 1.3.6.1 GETNEXT WALK RECALL-OID STEP CYCLES REPEAT RETURN Figure 5-6. SNMP Tools Screen 5.6.2 SNMP Tools Screen Fields The following describes the SNMP Tool screen fields and commands.

  • Page 52: The Security Access Level

    Repeats the Get command, allowing you to monitor any changes to a specific OID. 5.6.3 The Security Access Level Each MIB component that the ETWMIM supports (e.g., RMON, DLM, etc.) has its own “password” for each possible level of access (ranging from Basic Read-Only to Super-User). Most MIB component Community Names default to “public.”...

  • Page 53: Getting And Setting Oids

    LOCAL MANAGEMENT In order to access a specific MIB’s components, you must set the appropriate MIB password in the COMMUNITY NAME field. Note: The default Super-User password (public) allows you to access most MIB components. To change the SNMP Tools screen COMMUNITY NAME field, you must have Super-User access to Local Management.
  • Page 54 1. Highlight GETNEXT, using the arrow keys. 2. Press the Return key. “<GETNEXT> OID (=|F9):” appears. 3. Enter the OID. 4. Press the Return key. If that OID does not exist, the ETWMIM displays “MIB_NO_INSTANCE”. Otherwise the ETWMIM displays that OID’s data type, length, and value.

  • Page 55: Scrolling Through Mib Oids

    7. Enter the Data, or value of the OID. (Type in a sysContact. This OID allows for a String of up to 12 characters.) 8. Press the Return key. If the ETWMIM accepts the entry, it displays “<SET> OPERATION CODE: XXXX <OK>”; otherwise, an error message appears.
  • Page 56 To cycle through: 1. Highlight CYCLES, using the arrow keys. 2. Press the Return key. 3. Enter the number of OID cycles that you want to scroll through after “ENTER <GETNEXT> CYCLE COUNT:”. 4. Press the Return key. 5. Enter how many seconds delay that you want between GETNEXT requests after “ENTER CYCLE DELAY (secs):”.

  • Page 57: Configuring Wan Physical Attributes

    SAVE Figure 5-7. WAN Physical Configuration Screen 5.7.2 WAN Physical Configuration Screen Fields Active WAN Port Displays the active WAN port. In future ETWMIM releases, this field will provide port redundancy information. Page 5-18 ETWMIM LOCAL MANAGEMENT Cabletron ETWMIM Revision 00.00.00...
  • Page 58 Force CTS True Displays the source of the Clear To Send (CTS) signal. The CTS signal is an input to the ETWMIM. The ETWMIM can either use or ignore the CTS signal. You can toggle the selections between YES and NO.

  • Page 59: Setting The Active Wan Port Field

    LOCAL MANAGEMENT Note: Settings for the following fields are determined by the service provider settings. Cabletron suggests that you consult the service provider (i.e. AT&T, Sprint, MCI, NYNEX, etc.) for the correct settings. T1 Timeslot View Displays the status of the T1 Timeslot Configuration Table. The selections for this field toggle between Active and New.

  • Page 60: Setting The Syncport Type Field

    5.7.6 Setting the T1 Timeslot Configuration Table The T1 Timeslot Configuration Table allows you to configure how your ETWMIM utilizes the T1 line. The configuration table consists of 24 Timeslots. You must assign each Timeslot an Interface number (04-28, or 00 if the Timeslot is not used).
  • Page 61 LOCAL MANAGEMENT You can utilize Timeslots any way you choose. For example, if your ETWMIM has access to a full T1 (24 Timeslots), and you want to communicate with two other ETWMIMs, your configuration could look like figure 5-8. ETWMIM#1 24 Channels Figure 5-8.
  • Page 62 ETWMIM#1 is using the full T1, so all the Timeslots must have an Interface assignment. ETWMIM#2 and ETWMIM#3 only use a fraction of the T1, but the quantity of Timeslots must match those of ETWMIM#1. Unused Timeslots receive an Interface number of 00.

  • Page 63: Wan Interface Configuration Screen

    Frame Relay Fields Active Protocol: FR LMI Type: FR DLCI Address: FR Circuit State: Figure 5-10. WAN Interface Configuration Screen Page 5-24 ETWMIM LOCAL MANAGEMENT Cabletron ETWMIM Revision 00.00.00 WAN INTERFACE CONFIGURATION PT# IF# DLCI STATE NONE NONE SAVE NO LMI ACTIVE...

  • Page 64: Wan Interface Configuration Screen Fields

    Interface. CRC-16 supports a maximum packet size of 4095. This field displays 0 when Frame Relay is not used. When you save the interface configuration, the ETWMIM Local Management automatically assigns 4095 as the Max Xmit Unit. Line Coding Displays the T1 Line Coding.
  • Page 65 Local Management may assign up to 30 WAN bridge ports per interface. Note: The ETWMIM has 32 available bridge ports. Ethernet is bridge port 001 and Token Ring is bridge port 002. The remaining 30 bridge ports (003-032) are available for WAN applications.

  • Page 66: Configuring Ppp Interfaces

    5.8.2 Configuring PPP Interfaces The ETWMIM Local Management automatically assigns the next available bridge port to interfaces. There are 30 Bridge Ports available. To configure an Interface Number: 1. Use the arrow keys to highlight the Interface Number field. 2. Press the Return key to select the Interface Number (02-26) you want to configure.

  • Page 67: Configuring Frame Relay Interfaces

    LOCAL MANAGEMENT 5.8.3 Configuring Frame Relay Interfaces The ETWMIM Local Management Automatically assigns bridge ports to interfaces. There are 30 Bridge Ports available. To configure an Interface Number: 1. Use the arrow keys to highlight the Interface Number field. 2. Press the Return key to select the Interface Number (02-26) you want to configure.

  • Page 68: Setting The Data Compression Field

    3. Use the arrow keys to highlight the SAVE command. 4. Press the Return key or press F6. The message “SAVE DONE!” appears. The ETWMIM Local Management automatically assigns an Active Port Number to the Interface number and the changes are saved to memory.

  • Page 69: Setting The Max Xmit Unit Field

    3. Use the arrow keys to highlight the SAVE command. 4. Press the Return key or press F6. The message “SAVE DONE!” appears. The ETWMIM Local Management automatically assigns an Active Port Number to the Interface number and the changes are saved to memory.

  • Page 70: Command Line Interface (Cli)

    LOCAL MANAGEMENT 5.9 COMMAND LINE INTERFACE (CLI) The Command Line Interface (CLI) information screen, Figure 5-11, will be functional for future releases of the ETWMIM. ETWMIM LOCAL MANAGEMENT Cabletron ETWMIM Revision 0.00.00 CLI INFORMATION THIS SCREEN RESERVED FOR THE CABLETRON COMMAND LINE INTERFACE...

  • Page 71: Appendix A Epim Specifications

    EPIM SPECIFICATIONS The Ethernet Port Interface Module slides into the front of the ETWMIM and allows access to Ethernet. This module is only used if the FNB Ethernet connection is not in use. See Section 3.3 for information on selecting the Ethernet connection.
  • Page 72 EPIM SPECIFICATIONS The high impedance of the IBM Type 1 cable increases signal reflection. However, due to cable shielding, and its subsequent lack of crosstalk between shielded pairs, this signal reflection has little effect on the quality of the received signal. Jitter Intersymbol interference and reflections can cause jitter in the bit cell timing, resulting in data errors.

  • Page 73: Multimode Fiber Optic Cable Requirements For The Epim-F1 And Epim-F2

    A.1.2 Multimode Fiber Optic Cable Requirements for the EPIM-F1 and EPIM-F2 Table A-1 shows Multimode Fiber Optic Cable specifications for the EPIM-F1 and EPIM-F2 modules. Table A-1. Multimode Fiber Optic Cable Specifications Cable Type Attenuation 50/125 m 13.0 dB or less 62.5/125 m 16.0 dB or less 100/140 m...

  • Page 74: Single Mode Fiber Optic Cable Requirements For The Epim-F3

    EPIM SPECIFICATIONS A.1.3 Single Mode Fiber Optic Cable Requirements for the EPIM-F3 Table A-2 shows Single Mode Fiber Optic Cable specifications for the EPIM-F3. Table A-2. Single Mode Fiber Optic Cable Specifications Cable Type 8/125-12/125 m Attenuation You must test the fiber optic cable with a fiber optic attenuation test set adjusted for an 1300 nm wavelength.

  • Page 75: Thin-Net Cable Requirements For The Epim-C

    EPIM SPECIFICATIONS A.1.4 Thin-Net Cable Requirements for the EPIM-C When you connect a thin-net segment to the ETWMIM (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.

  • Page 76: Aui Cable Requirements For The Epim-A And Epim-X

    EPIM SPECIFICATIONS A.1.5 AUI Cable Requirements for the EPIM-A and EPIM-X When you connect an external network segment to the ETWMIM (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.

  • Page 77: Epim Connector Specifications

    A.2 EPIM CONNECTOR SPECIFICATIONS The following sections outline specifications for each of the EPIM connectors. A.2.1 EPIM-T (10BASE-T Twisted Pair Port) Internal Transceiver:Cabletron Systems TPT 10BASE-T Twisted Pair Type: A slide switch on the EPIM-T determines the cross over status of the cable pairs.

  • Page 78: Epim-F1 And Epim-F2 (Multimode Fiber Optic Ports

    EPIM SPECIFICATIONS A.2.2 EPIM-F1 and EPIM-F2 (Multimode Fiber Optic Ports) Internal Transceiver: Type: Figure A-2. EPIM-F1 and EPIM-F2 Parameter Receive Sensitivity: Max Receive Power: Transmitter Power Into – 50/125 m fiber: 62.5/125 m fiber: 100/140 m fiber: Bit Error Rate: Note: The above transmitter power and receive sensitivity levels represent Peak Power Levels after optical overshoot.

  • Page 79: Epim-F3 (Single Mode Fiber Optic Port

    A.2.3 EPIM-F3 (Single Mode Fiber Optic Port) Internal Transceiver: Cabletron Systems FOT-F3™ Fiber Optic Type: Note: Transmitter power is inversely proportional to temperature rise. Use the Output Power Coefficient to calculate increased or decreased power output for your operating environment. For example, typical power output at 25C equals -16.4 dBm.
  • Page 80 EPIM SPECIFICATIONS Parameter TX Power: TX Budget: RX Sensitivity: MAX Receive Power: Bit Error Rate: Note: The above transmitter power levels and receive sensitivity levels represent Peak Power Levels after optical overshoot. You must use a Peak Power Meter to correctly compare the above values to those you measure on any particular port.

  • Page 81: Epim-C (Bnc Port

    A.2.4 EPIM-C (BNC Port) Internal Transceiver: Type: Internal Termination Switch Figure A-4. EPIM-C (with BNC Port) Termination: Grounding: Warning: Connecting a thin-net segment to earth ground at more than one point could produce dangerous ground currents. Cabletron Systems TMS-3™ Transceiver BNC receptacle, with gold center contact, for use with BNC type tee-connectors and RG-58 thin-net cable.

  • Page 82: Epim-A And Epim-X (Aui Ports

    EPIM SPECIFICATIONS A.2.5 EPIM-A and EPIM-X (AUI Ports) Interface Connector: Type: Figure A-5. EPIM-A and EPIM-X (AUI Ports) 1 Logic Ref. 2 Collision + 3 Transmit + 4 Logic Ref. 5 Receive + 6 Power Return 7 No Connection 8 Logic Ref. Connector Shell: Protective Ground A.3 CONNECTING AN EPIM TO THE ETHERNET NETWORK The procedure for connecting Ethernet segments to the unit vary...

  • Page 83: Connecting An Aui Cable To An Epim-A

    Caution: Ensure that the external transceiver to which the ETWMIM will be connected does not have the signal quality error (SQE or “heartbeat”) test function enabled. The ETWMIM will not operate if the transceiver has the SQE test function enabled, and the network will be E P I M - A unusable.

  • Page 84: Connecting An Unshielded Twisted Pair Segment To An Epim-T

    Check the cable for continuity. Reconnect the AUI cable to the ETWMIM and the device. If the LED is still not on after reconnecting the segment, contact Cabletron Systems Technical Support.

  • Page 85: Connecting A Fiber Optic Link Segment To An Epim-F1, Epim-F2, Or Epim-F3

    To connect an EPIM-T to a Twisted Pair Segment: 1. Connect the twisted pair segment to the module by inserting the RJ45 connector on the twisted pair segment into the RJ45 port on the module. See Figure A-7. 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 86 EPIM SPECIFICATIONS Inert the connector into the port with the alignment key on the connector inserted into the alignment slot on the port. The connector is then turned to lock it down. • The physical communication link consists of two strands of fiber optic cabling: the Transmit (TX) and the Receive (RX).
  • Page 87 SMA 905 Connectors Figure A-8. 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.

  • Page 88: Connecting A Thin-Net Segment To An Epim-C

    EPIM SPECIFICATIONS b. Verify that the fiber strands are properly “crossed over” between the applicable port on the module and the fiber optic device at the other end of the fiber optic link segment. Verify that the fiber connection meets the dB loss specifications outlined in Fiber Optic Network Requirements.
  • Page 89 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. Attach another thin-coax segment or a terminator to the other female connector on the tee-connector.

  • Page 90: Connecting An Aui Cable To An Epim-X

    EPIM SPECIFICATIONS A.3.5 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.

  • Page 91: Appendix B Downloading An Image File

    DOWNLOADING AN IMAGE FILE This appendix provides instructions for downloading an image file to the ETWMIM by setting specific MIB OID strings. To set OID strings, you can use the SNMP Tools screen described in Chapter 5.6 of this manual or any MIB walking tool. Refer to specific MIB walking tool documentation for instructions on how to set MIB OID strings.

  • Page 92: Getting Started

    DOWNLOADING AN IMAGE FILE B.1 GETTING STARTED Cabletron ships two versions of the same firmware image file with each upgrade kit. The first file, suffixed with .hex (after it has been decompressed from a .zip) is for Standard Local Downloading. The second file, suffixed with .fls (after it has been decompressed from a .zip) is for Remote Runtime Downloading.

  • Page 93: Setting Up A Unix Workstation As A Rarp Server

    (e.g., 00:00:1d:12:12:ce ETW). Note: Colons replace dashes in the ethernet address. 2. Edit the /etc/hosts file by adding the ETWMIM IP address and follow it with the same unique name you used in step #1 (e.g., 132.177.118.24 ETW).
  • Page 94 DOWNLOADING AN IMAGE FILE The following information represents a typical output: user root 0.0 0.9 root 0.0 0.0 The term rarpd -a, located at the end of the root string, indicates rarp is active. If rarp is NOT running, only the grep process appears. 4.

  • Page 95: Standard Local Download

    B.3 STANDARD LOCAL DOWNLOAD Table B-1 provides a step by step procedure for downloading the firmware image file. This section provides specific MIB OIDs, their names, and the required setting for proper image file download. Refer to your specific MIB walking tool documentation for instructions on how to set MIB OID strings.

  • Page 96: Remote Runtime Download

    B.4 REMOTE RUNTIME DOWNLOAD Warning: If the Runtime Download is interrupted, the Firmware Image in Flash memory will be erased. The ETWMIM will continue to operate until it is either Reset or Powered OFF and ON. After either of these events, the ETWMIM can Download a Firmware Image from a BootP server ONLY! The process of configuring a BootP Server is discussed at length in Cabletron’s “Remote LANVIEW/Windows...
  • Page 97 If you selected forceDownLoadReset at Step 3, then DO NOT CONTINUE, you have completed all necessary settings. If you selected forceDownLoad at Step 3, then you can reset the ETWMIM at a later time. You can reset the ETWMIM remotely using the ctDLInitiateColdBoot OID described at Step 5 or manually using the Reset Button or Power Cycle.

  • Page 98: Appendix C Fcc Part 68 - User's Information

    FCC PART 68 - USER’S INFORMATION The following instructions are to ensure compliance with the Federal Communications Commission (FCC) Rules, Part 68. 1. All direct connections to T1 lines must be made using standard plugs and jacks. 2. Before connecting your unit, you must inform the local telephone company of the following information: Port ID 3.
  • Page 99 FCC PART 68 8. In the event of equipment malfunction, all repairs should be performed by our Company or an authorized agent. It is the responsibility of the users requiring service to report the need for service to our Company or to one of our authorized agents. Service can be obtained at Cabletron Systems’...
  • Page 100 AFFIDAVIT FOR THE CONNECTION OF CUSTOMER EQUIPMENT TO 1.544 MBPS AND/OR SUBRATE DIGITAL SERVICES For the work to be performed in the certified territory of Telco’s name: State of: Country of: (Name of Authorized Representative) (Customer’s Address) being duly sworn, state: I have responsibility for the operation and maintenance of the terminal equipment to be connected to and/or...
  • Page 101 FCC PART 68 I attest that the operator(s) maintainer(s) of the digital CPE responsible for the establishment, maintenance and adjustment of the encoded analog content and billing information has (have) been trained to perform these functions by successfully completing one of the following: Check appropriate one(s).

  • Page 102: Index

    Baud Rate 5-26 5-27 Bridge Ports Bridging Remote Bridging Transparent Bridging Cabletron Systems Technical Support COM 1 COM 2 Command Line Interface screen 5-31 Configuration Switches Location 5-20 Setting Console Cable Pinouts 5-25 Data Compression Default Gateway 5-26 5-28 5-29 DLCI Environmental Requirements EPIMs...
  • Page 103 Configuration Flexible Network Bus Non-shunting Shunting Index-2 Operating Specifications Physical Specifications Dimensions Weight Protocols Frame Relay Supported by ETWMIM 5-30 Safety Requirements Spanning Tree Algorithm Subnet Mask T1-SRM Terminal Setup Requirements Timeslots Configuration Token Ring Connectivity 5-11 Wide Area Network Connectivity...

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